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Guo X, Li J, Li M, Zhou B, Zheng S, Li L. A molecular module connects abscisic acid with auxin signals to facilitate seasonal wood formation in Populus. PLANT, CELL & ENVIRONMENT 2024; 47:4323-4336. [PMID: 38963121 DOI: 10.1111/pce.15027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 06/09/2024] [Accepted: 06/25/2024] [Indexed: 07/05/2024]
Abstract
Perennial trees have a recurring annual cycle of wood formation in response to environmental fluctuations. However, the precise molecular mechanisms that regulate the seasonal formation of wood remain poorly understood. Our prior study indicates that VCM1 and VCM2 play a vital role in regulating the activity of the vascular cambium by controlling the auxin homoeostasis of the cambium zone in Populus. This study indicates that abscisic acid (ABA) affects the expression of VCM1 and VCM2, which display seasonal fluctuations in relation to photoperiod changes. ABA-responsive transcription factors AREB4 and AREB13, which are predominantly expressed in stem secondary vascular tissue, bind to VCM1 and VCM2 promoters to induce their expression. Seasonal changes in the photoperiod affect the ABA amount, which is linked to auxin-regulated cambium activity via the functions of VCM1 and VCM2. Thus, the study reveals that AREB4/AREB13-VCM1/VCM2-PIN5b acts as a molecular module connecting ABA and auxin signals to control vascular cambium activity in seasonal wood formation.
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Affiliation(s)
- Xulei Guo
- Yuelushan Laboratory, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha, China
- Key Laboratory of Plant Carbon Capture, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Jian Li
- Yuelushan Laboratory, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha, China
- Key Laboratory of Plant Carbon Capture, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Meng Li
- Yuelushan Laboratory, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha, China
| | - Bo Zhou
- Yuelushan Laboratory, College of Life and Environmental Sciences, Central South University of Forestry and Technology, Changsha, China
| | - Shuai Zheng
- Key Laboratory of Plant Carbon Capture, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Laigeng Li
- Key Laboratory of Plant Carbon Capture, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China
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2
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Zhang Y, Man J, Wen L, Tan S, Liu S, Li Y, Qi P, Jiang Q, Wei Y. ATP-binding cassette transporter TaABCG2 contributes to Fusarium head blight resistance by mediating salicylic acid transport in wheat. MOLECULAR PLANT PATHOLOGY 2024; 25:e70013. [PMID: 39378008 PMCID: PMC11460253 DOI: 10.1111/mpp.70013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 09/14/2024] [Accepted: 09/18/2024] [Indexed: 10/10/2024]
Abstract
ATP-binding cassette (ABC) transporters hydrolyse ATP to transport various substrates. Previous studies have shown that ABC transporters are responsible for transporting plant hormones and heavy metals, thus contributing to plant immunity. Herein, we identified a wheat G-type ABC transporter, TaABCG2-5B, that responds to salicylic acid (SA) treatment and is induced by Fusarium graminearum, the primary pathogen causing Fusarium head blight (FHB). The loss-of-function mutation of TaABCG2-5B (ΔTaabcg2-5B) reduced SA accumulation and increased susceptibility to F. graminearum. Conversely, overexpression of TaABCG2-5B (OE-TaABCG2-5B) exerted the opposite effect. Quantification of intracellular SA in ΔTaabcg2-5B and OE-TaABCG2-5B protoplasts revealed that TaABCG2-5B acts as an importer, facilitating the transport of SA into the cytoplasm. This role was further confirmed by Cd2+ absorption experiments in wheat roots, indicating that TaABCG2-5B also participates in Cd2+ transport. Thus, TaABCG2-5B acts as an importer and is crucial for transporting multiple substrates. Notably, the homologous gene TaABCG2-5A also facilitated Cd2+ uptake in wheat roots but did not significantly influence SA accumulation or FHB resistance. Therefore, TaABCG2 could be a valuable target for enhancing wheat tolerance to Cd2+ and improving FHB resistance.
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Affiliation(s)
- Ya‐Zhou Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural UniversityChengduSichuanChina
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Jie Man
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Lan Wen
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Si‐Qi Tan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural UniversityChengduSichuanChina
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Shun‐Li Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural UniversityChengduSichuanChina
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Ying‐Hui Li
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Peng‐Fei Qi
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural UniversityChengduSichuanChina
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Qian‐Tao Jiang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural UniversityChengduSichuanChina
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
| | - Yu‐Ming Wei
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest ChinaSichuan Agricultural UniversityChengduSichuanChina
- Triticeae Research Institute, Sichuan Agricultural UniversityChengduSichuanChina
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3
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Li J, Ren J, Zhang Q, Lei X, Feng Z, Tang L, Bai J, Gong C. Strigolactone enhances tea plant adaptation to drought and Phyllosticta theicola petch by regulating caffeine content via CsbHLH80. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109161. [PMID: 39378645 DOI: 10.1016/j.plaphy.2024.109161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 09/06/2024] [Accepted: 09/25/2024] [Indexed: 10/10/2024]
Abstract
Strigolactones (SLs) play crucial roles in both plant growth and stress responses. However, their impact on the secondary metabolites of woody plants remains elusive. Here, we found that exogenous strigolactone analogue GR24 positively regulates tea plant flavor secondary metabolites, concurrently inhibiting caffeine biosynthesis and promoting the accumulation of caffeine catabolic pathway products. In this process, SL directly or indirectly inhibits the expression of CsSAMSs by inducing CsbHLH80, thereby reducing caffeine biosynthesis. Furthermore, CsbHLH80 enhances caffeine degradation, leading to increased allantoin. Under normal conditions, heightened allantoin reduces abscisic acid (ABA) accumulation. This inhibition reverses under drought stress. Increased ABA significantly enhances tea plant tolerance to both drought and Phyllosticta theicola Petch. In summary, this study offers novel insights for improving tea plant adaptation and quality in arid regions, particularly emphasizing the selection of stress-tolerant varieties and the refinement of production measures with a focus on high-quality production and environmentally friendly biological control methods.
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Affiliation(s)
- Jiayang Li
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Jiejie Ren
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Qiqi Zhang
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Xingyu Lei
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Zongqi Feng
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Lei Tang
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Juan Bai
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
| | - Chunmei Gong
- College of Horticulture, Northwest A&F University, Yangling, 712100, China.
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Alves LM, Valkov VT, Vittozzi Y, Ariante A, Notte A, Perez T, Barbulova A, Rogato A, Lacombe B, Chiurazzi M. The Lotus japonicus NPF4.6 gene, encoding for a dual nitrate and ABA transporter, plays a role in the lateral root elongation process and is not involved in the N 2-fixing nodule development. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109144. [PMID: 39341182 DOI: 10.1016/j.plaphy.2024.109144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 09/18/2024] [Accepted: 09/21/2024] [Indexed: 09/30/2024]
Abstract
Plant root development depends on signaling pathways responding to external and internal signals. In this study we demonstrate the involvement of the Lotus japonicus LjNPF4.6 gene in the ABA and nitrate root responding pathways. LjNPF4.6 expression in roots is induced by external application of both nitrate and ABA. LjNPF4.6 promoter activity is spatially localized in epidermal cell layer and vascular bundle structures with the latter pattern being controlled by externally applied ABA. LjNPF4.6 cRNA injection achieves both nitrate and ABA uptake in Xenopus laevis oocytes and the analyses of L. japonicus knock-out insertion mutants confirmed the role played by LjNPF4.6 in root nitrate uptake. The phenotypic characterization of the Ljnpf4.6 plants indicates the role played by LjNPF4.6 in the root program development in response to exogenously applied nitrate and ABA. Based on the presented data, the mode of action of this transporter is discussed.
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Affiliation(s)
- Ludovico Martin Alves
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Vladimir Totev Valkov
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Ylenia Vittozzi
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Anita Ariante
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Alberta Notte
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Thibaut Perez
- IPSIM, Univ. Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France
| | - Ani Barbulova
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Alessandra Rogato
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy
| | - Benoit Lacombe
- IPSIM, Univ. Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France
| | - Maurizio Chiurazzi
- Institute of Biosciences and Bioresources (CNR), Via P. Castellino 111, 80131, Napoli, Italy.
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Chen SY, Zhang ZS, Zhang ZY, Sun LQ, Fan SJ, Zhang GH, Wu J, Xia JQ, Yu J, Hou SW, Qin P, Li SG, Xiang CB. Loss of OsMATE6 Function Enhances Drought Resistance Without Yield Penalty by Regulating Stomatal Closure in Rice. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39248638 DOI: 10.1111/pce.15133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 07/29/2024] [Accepted: 08/18/2024] [Indexed: 09/10/2024]
Abstract
Drought is one of the most severe environmental factors limiting plant growth and crop yield, necessitating the identification of genes that enhance drought resistance for crop improvement. Through screening an ethyl methyl sulfonate-mutagenized rice mutant library, we isolated the PEG tolerance mutant 97-1 (ptm97-1), which displays enhanced resistance to osmotic and drought stress, and increased yield under drought conditions. A point mutation in OsMATE6 was identified as being associated with the drought-resistant phenotype of ptm97-1. The role of OsMATE6 in conferring drought resistance was confirmed by additional OsMATE6 knockout mutants. OsMATE6 is expressed in guard cells, shoots and roots and the OsMATE6-GFP fusion protein predominantly localizes to the plasma membrane. Our ABA efflux assays suggest that OsMATE6 functions as an ABA efflux transporter; mutant protoplasts exhibited a slower ABA release rate compared to the wild type. We hypothesize that OsMATE6 regulates ABA levels in guard cells, influencing stomatal closure and enhancing drought resistance. Notably, OsMATE6 knockout mutants demonstrated greater yields under field drought conditions compared to wild-type plants, highlighting OsMATE6 as a promising candidate for improving crop drought resistance.
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Affiliation(s)
- Si-Yan Chen
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Zi-Sheng Zhang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Zheng-Yi Zhang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Liang-Qi Sun
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Shi-Jun Fan
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Guo-Hua Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jie Wu
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Jin-Qiu Xia
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
| | - Jing Yu
- School of Life Science, Lanzhou University, Lanzhou, Gansu, China
| | - Sui-Wen Hou
- School of Life Science, Lanzhou University, Lanzhou, Gansu, China
| | - Peng Qin
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Shi-Gui Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Cheng-Bin Xiang
- Division of Life Sciences and Medicine, Division of Molecular & Cell Biophysics, Hefei National Science Center for Physical Sciences at the Microscale, The Innovation Academy of Seed Design, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui, China
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6
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Li X, Zheng J, Su J, Wang L, Luan L, Wang T, Bai F, Zhong Q, Gong Q. Myotubularin 2 interacts with SEC23A and negatively regulates autophagy at ER exit sites in Arabidopsis. Autophagy 2024:1-19. [PMID: 39177202 DOI: 10.1080/15548627.2024.2394302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 08/11/2024] [Accepted: 08/15/2024] [Indexed: 08/24/2024] Open
Abstract
Starvation- or stress-induced phosphatidylinositol 3-phosphate (PtdIns3P/PI3P) production at the endoplasmic reticulum (ER) subdomains organizes phagophore assembly and autophagosome formation. Coat protein complex II (COPII) vesicles budding from ER exit site (ERES) also contribute to autophagosome formation. Whether any PtdIns3P phosphatase functions at ERES to inhibit macroautophagy/autophagy is unknown. Here we report Myotubularin 2 (MTM2) of Arabidopsis as a PtdIns3P phosphatase that localizes to ERES and negatively regulates autophagy. MTM2 binds PtdIns3P with its PH-GRAM domain in vitro and acts toward PtdIns3P in vivo. Transiently expressed MTM2 colocalizes with ATG14b, a subunit of the phosphatidylinositol 3-kinase (PtdIns3K) complex, and overexpression of MTM2 blocks autophagic flux and causes over-accumulation of ATG18a, ATG5, and ATG8a. The mtm2 mutant has higher levels of autophagy and is more tolerant to starvation, whereas MTM2 overexpression leads to reduced autophagy and sensitivity to starvation. The phenotypes of mtm2 are suppressed by ATG2 mutation, suggesting that MTM2 acts upstream of ATG2. Importantly, MTM2 does not affect the endosomal functions of PtdIns3P. Instead, MTM2 specifically colocalizes with COPII coat proteins and is cradled by the ERES-defining protein SEC16. MTM2 interacts with SEC23A with its phosphatase domain and inhibits COPII-mediated protein secretion. Finally, a role for MTM2 in salt stress response is uncovered. mtm2 resembles the halophyte Thellungiella salsuginea in its efficient vacuolar compartmentation of Na+, maintenance of chloroplast integrity, and timely regulation of autophagy-related genes. Our findings reveal a balance between PtdIns3P synthesis and turnover in autophagosome formation, and provide a new link between autophagy and COPII function.Abbreviations: ATG: autophagy related; BFA: brefeldin A; BiFC: bimolecular fluorescence complementation; CHX: cycloheximide; ConA: concanamycin A; COPII: coat protein complex II; ER: endoplasmic reticulum; ERES: ER exit site; MS: Murashige and Skoog; MTM: myotubularin; MVB: multivesicular body; PAS: phagophore assembly site; PI: phosphoinositide; TEM: transmission electron microscopy; WT: wild-type.
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Affiliation(s)
- Xinjing Li
- State Key Laboratory of Microbial Metabolism & Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Jing Zheng
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, P. R. China
| | - Jing Su
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, P. R. China
| | - Lin Wang
- Shanghai Institute for Advanced Immunochemical Studies, School of Life Science and Technology, ShanghaiTech University, Shanghai, P. R. China
| | - Lin Luan
- Department of Plant Biology and Ecology, College of Life Sciences, Nankai University, Tianjin, P. R. China
| | - Taotao Wang
- State Key Laboratory of Microbial Metabolism & Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, P. R. China
| | - Fang Bai
- Shanghai Institute for Advanced Immunochemical Studies, School of Life Science and Technology, ShanghaiTech University, Shanghai, P. R. China
| | - Qing Zhong
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai, P. R. China
| | - Qingqiu Gong
- State Key Laboratory of Microbial Metabolism & Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, P. R. China
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Liu C, Ding X, Wu Y, Zhang J, Huang R, Li X, Liu G, Liu P. Chromosome-scale reference genome of an ancient landrace: unveiling the genetic basis of seed weight in the food legume crop pigeonpea ( Cajanus cajan). HORTICULTURE RESEARCH 2024; 11:uhae201. [PMID: 39257540 PMCID: PMC11387010 DOI: 10.1093/hr/uhae201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/11/2024] [Indexed: 09/12/2024]
Abstract
Pigeonpea (Cajanus cajan) is a nutrient-rich and versatile food legume crop of tropical and subtropical regions. In this study, we describe the de novo assembly of a high-quality genome for the ancient pigeonpea landrace 'D30', achieved through a combination of Pacific Biosciences high-fidelity (PacBio HiFi) and high-throughput chromatin conformation capture (Hi-C) sequencing technologies. The assembled 'D30' genome has a size of 813.54 Mb, with a contig N50 of 10.74 Mb, a scaffold N50 of 73.07 Mb, and a GC content of 35.67%. Genomic evaluation revealed that the 'D30' genome contains 99.2% of Benchmarking Universal Single-Copy Orthologs (BUSCO) and achieves a 29.06 long terminal repeat (LTR) assembly index (LAI). Genome annotation indicated that 'D30' encompasses 431.37 Mb of repeat elements (53.02% of the genome) and 37 977 protein-coding genes. Identification of single-nucleotide polymorphisms (SNPs), insertions/deletions (indels), and structural variations between 'D30' and the published genome of pigeonpea cultivar 'Asha' suggests that genes affected by these variations may play important roles in biotic and abiotic stress responses. Further investigation of genomic regions under selection highlights genes enriched in starch and sucrose metabolism, with 42.11% of these genes highly expressed in seeds. Finally, we conducted genome-wide association studies (GWAS) to facilitate the identification of 28 marker-trait associations for six agronomic traits of pigeonpea. Notably, we discovered a calmodulin-like protein (CcCML) that harbors a dominant haplotype associated with the 100-seed weight of pigeonpea. Our study provides a foundational resource for developing genomics-assisted breeding programs in pigeonpea.
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Affiliation(s)
- Chun Liu
- Tropical Crops Genetic Resources Institute, National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou/Sanya 571101/572024, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China
- School of Tropical Agriculture and Forestry, Sanya Institute Breeding and Multiplication, Hainan University, Haikou/Sanya 570228/572025, China
| | - Xipeng Ding
- Tropical Crops Genetic Resources Institute, National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou/Sanya 571101/572024, China
| | - Yuanhang Wu
- School of Nuclear Technology and Chemistry & Biology, Hubei University of Science and Technology, Xianning 437100, China
| | - Jianyu Zhang
- School of Tropical Agriculture and Forestry, Sanya Institute Breeding and Multiplication, Hainan University, Haikou/Sanya 570228/572025, China
| | - Rui Huang
- Tropical Crops Genetic Resources Institute, National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou/Sanya 571101/572024, China
| | - Xinyong Li
- Tropical Crops Genetic Resources Institute, National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou/Sanya 571101/572024, China
| | - Guodao Liu
- Tropical Crops Genetic Resources Institute, National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou/Sanya 571101/572024, China
| | - Pandao Liu
- Tropical Crops Genetic Resources Institute, National Key Laboratory for Tropical Crop Breeding, Chinese Academy of Tropical Agricultural Sciences, Haikou/Sanya 571101/572024, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture and Rural Affairs, Haikou 571101, China
- Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation of Hainan Province, Haikou 571101, China
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8
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Morton M, Fiene G, Ahmed HI, Rey E, Abrouk M, Angel Y, Johansen K, Saber NO, Malbeteau Y, Al-Mashharawi S, Ziliani MG, Aragon B, Oakey H, Berger B, Brien C, Krattinger SG, Mousa MAA, McCabe MF, Negrão S, Tester M, Julkowska MM. Deciphering salt stress responses in Solanum pimpinellifolium through high-throughput phenotyping. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:2514-2537. [PMID: 38970620 DOI: 10.1111/tpj.16894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 06/03/2024] [Indexed: 07/08/2024]
Abstract
Soil salinity is a major environmental stressor affecting agricultural productivity worldwide. Understanding plant responses to salt stress is crucial for developing resilient crop varieties. Wild relatives of cultivated crops, such as wild tomato, Solanum pimpinellifolium, can serve as a useful resource to further expand the resilience potential of the cultivated germplasm, S. lycopersicum. In this study, we employed high-throughput phenotyping in the greenhouse and field conditions to explore salt stress responses of a S. pimpinellifolium diversity panel. Our study revealed extensive phenotypic variations in response to salt stress, with traits such as transpiration rate, shoot mass, and ion accumulation showing significant correlations with plant performance. We found that while transpiration was a key determinant of plant performance in the greenhouse, shoot mass strongly correlated with yield under field conditions. Conversely, ion accumulation was the least influential factor under greenhouse conditions. Through a Genome Wide Association Study, we identified candidate genes not previously associated with salt stress, highlighting the power of high-throughput phenotyping in uncovering novel aspects of plant stress responses. This study contributes to our understanding of salt stress tolerance in S. pimpinellifolium and lays the groundwork for further investigations into the genetic basis of these traits, ultimately informing breeding efforts for salinity tolerance in tomato and other crops.
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Affiliation(s)
- Mitchell Morton
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Gabriele Fiene
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Hanin Ibrahim Ahmed
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Elodie Rey
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Michael Abrouk
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yoseline Angel
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
- Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland, USA
| | - Kasper Johansen
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Noha O Saber
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yoann Malbeteau
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Samir Al-Mashharawi
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Matteo G Ziliani
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Hydrosat S.à r.l., 9 Rue du Laboratoire, Luxembourg City, 1911, Luxembourg
| | - Bruno Aragon
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Helena Oakey
- Robinson Institute, University of Adelaide, Adelaide, Australia
| | - Bettina Berger
- Australian Plant Phenomics Facility, University of Adelaide, Urrbrae, Australia
| | - Chris Brien
- Australian Plant Phenomics Facility, University of Adelaide, Urrbrae, Australia
| | - Simon G Krattinger
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Magdi A A Mousa
- Department of Agriculture, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, 80208, Saudi Arabia
- Department of Vegetable Crops, Faculty of Agriculture, Assiut University, Assiut, 71526, Egypt
| | - Matthew F McCabe
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Sónia Negrão
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- University College, Dublin, Republic of Ireland
| | - Mark Tester
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Magdalena M Julkowska
- Plant Science Program, Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- Boyce Thompson Institute, Ithaca, New York, USA
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9
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Moulinier-Anzola J, Schwihla M, Lugsteiner R, Leibrock N, Feraru MI, Tkachenko I, Luschnig C, Arcalis E, Feraru E, Lozano-Juste J, Korbei B. Modulation of abscisic acid signaling via endosomal TOL proteins. THE NEW PHYTOLOGIST 2024; 243:1065-1081. [PMID: 38874374 DOI: 10.1111/nph.19904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 05/25/2024] [Indexed: 06/15/2024]
Abstract
The phytohormone abscisic acid (ABA) functions in the control of plant stress responses, particularly in drought stress. A significant mechanism in attenuating and terminating ABA signals involves regulated protein turnover, with certain ABA receptors, despite their main presence in the cytosol and nucleus, subjected to vacuolar degradation via the Endosomal Sorting Complex Required for Transport (ESCRT) machinery. Collectively our findings show that discrete TOM1-LIKE (TOL) proteins, which are functional ESCRT-0 complex substitutes in plants, affect the trafficking for degradation of core components of the ABA signaling and transport machinery. TOL2,3,5 and 6 modulate ABA signaling where they function additively in degradation of ubiquitinated ABA receptors and transporters. TOLs colocalize with their cargo in different endocytic compartments in the root epidermis and in guard cells of stomata, where they potentially function in ABA-controlled stomatal aperture. Although the tol2/3/5/6 quadruple mutant plant line is significantly more drought-tolerant and has a higher ABA sensitivity than control plant lines, it has no obvious growth or development phenotype under standard conditions, making the TOL genes ideal candidates for engineering to improved plant performance.
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Affiliation(s)
- Jeanette Moulinier-Anzola
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Maximilian Schwihla
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Rebecca Lugsteiner
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Nils Leibrock
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Mugurel I Feraru
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
- "Gheorghe Rosca Codreanu" National College, Nicolae Balcescu, Barlad, 731183, Vaslui, Romania
| | - Irma Tkachenko
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Christian Luschnig
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Elsa Arcalis
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Elena Feraru
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
| | - Jorge Lozano-Juste
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, 46022, Valencia, Spain
| | - Barbara Korbei
- Department of Applied Genetics and Cell Biology, Institute of Molecular Plant Biology, BOKU University, Muthgasse 18, 1190, Vienna, Austria
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10
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Kim M, Hyeon DY, Kim K, Hwang D, Lee Y. Phytohormonal regulation determines the organization pattern of shoot aerenchyma in greater duckweed (Spirodela polyrhiza). PLANT PHYSIOLOGY 2024; 195:2694-2711. [PMID: 38527800 PMCID: PMC11288743 DOI: 10.1093/plphys/kiae173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/27/2024]
Abstract
Airspace or aerenchyma is crucial for plant development and acclimation to stresses such as hypoxia, drought, and nutritional deficiency. Although ethylene-mediated signaling cascades are known to regulate aerenchyma formation in stems and roots under hypoxic conditions, the precise mechanisms remain unclear. Moreover, the cellular dynamics underlying airspace formation in shoots are poorly understood. We investigated the stage-dependent structural dynamics of shoot aerenchyma in greater duckweed (Spirodela polyrhiza), a fast-growing aquatic herb with well-developed aerenchyma in its floating fronds. Using X-ray micro-computed tomography and histological analysis, we showed that the spatial framework of aerenchyma is established before frond volume increases, driven by cell division and expansion. The substomatal cavity connecting aerenchyma to stomata formed via programmed cell death (PCD) and was closely associated with guard cell development. Additionally, transcriptome analysis and pharmacological studies revealed that the organization of aerenchyma in greater duckweed is determined by the interplay between PCD and proliferation. This balance is governed by spatiotemporal regulation of phytohormone signaling involving ethylene, abscisic acid, and salicylic acid. Overall, our study reveals the structural dynamics and phytohormonal regulation underlying aerenchyma development in duckweed, improving our understanding of how plants establish distinct architectural arrangements. These insights hold the potential for wide-ranging application, not only in comprehending aerenchyma formation across various plant species but also in understanding how airspaces are formed within the leaves of terrestrial plants.
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Affiliation(s)
- Min Kim
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Do Young Hyeon
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyungyoon Kim
- Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Daehee Hwang
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Bioinformatics Institute, Bio-MAX, Seoul National University, Seoul 08826, Republic of Korea
| | - Yuree Lee
- School of Biological Sciences, Seoul National University, Seoul 08826, Republic of Korea
- Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Republic of Korea
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11
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Rosa-Diaz I, Rowe J, Cayuela-Lopez A, Arbona V, Díaz I, Jones AM. Spider mite herbivory induces an ABA-driven stomatal defense. PLANT PHYSIOLOGY 2024; 195:2970-2984. [PMID: 38669227 PMCID: PMC11288753 DOI: 10.1093/plphys/kiae215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/26/2024] [Accepted: 03/14/2024] [Indexed: 04/28/2024]
Abstract
Arthropod herbivory poses a serious threat to crop yield, prompting plants to employ intricate defense mechanisms against pest feeding. The generalist pest 2-spotted spider mite (Tetranychus urticae) inflicts rapid damage and remains challenging due to its broad target range. In this study, we explored the Arabidopsis (Arabidopsis thaliana) response to T. urticae infestation, revealing the induction of abscisic acid (ABA), a hormone typically associated with abiotic stress adaptation, and stomatal closure during water stress. Leveraging a Forster resonance energy transfer (FRET)-based ABA biosensor (nlsABACUS2-400n), we observed elevated ABA levels in various leaf cell types postmite feeding. While ABA's role in pest resistance or susceptibility has been debated, an ABA-deficient mutant exhibited increased mite infestation alongside intact canonical biotic stress signaling, indicating an independent function of ABA in mite defense. We established that ABA-triggered stomatal closure effectively hinders mite feeding and minimizes leaf cell damage through genetic and pharmacological interventions targeting ABA levels, ABA signaling, stomatal aperture, and density. This study underscores the critical interplay between biotic and abiotic stresses in plants, highlighting how the vulnerability to mite infestation arising from open stomata, crucial for transpiration and photosynthesis, reinforces the intricate relationship between these stress types.
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Affiliation(s)
- Irene Rosa-Diaz
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo, 20223 Madrid, Spain
| | - James Rowe
- Sainsbury Laboratory, Cambridge University, Cambridge CB2 1LR, UK
| | - Ana Cayuela-Lopez
- Confocal Microscopy Unit, Spanish National Cancer Research Center (CNIO), 28029 Madrid, Spain
| | - Vicent Arbona
- Departament de Biologia, Bioquímica i Ciències Naturals, Universitat Jaume I, 12071 Castelló de la Plana, Spain
| | - Isabel Díaz
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA/CSIC), Campus de Montegancedo, 20223 Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, UPM, 28040 Madrid, Spain
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12
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Cai G, Zang Y, Wang Z, Liu S, Wang G. Arabidopsis BTB-A2s Play a Key Role in Drought Stress. BIOLOGY 2024; 13:561. [PMID: 39194499 DOI: 10.3390/biology13080561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 07/11/2024] [Accepted: 07/24/2024] [Indexed: 08/29/2024]
Abstract
Drought stress significantly impacts plant growth, productivity, and yield, necessitating a swift fine-tuning of pathways for adaptation to harsh environmental conditions. This study explored the effects of Arabidopsis BTB-A2.1, BTB-A2.2, and BTB-A2.3, distinguished by their exclusive possession of the Broad-complex, Tramtrack, and Bric-à-brac (BTB) domain, on the negative regulation of drought stress mediated by abscisic acid (ABA) signaling. Promoter analysis revealed the presence of numerous ABA-responsive and drought stress-related cis-acting elements within the promoters of AtBTB-A2.1, AtBTB-A2.2, and AtBTB-A2.3. The AtBTB-A2.1, AtBTB-A2.2, and AtBTB-A2.3 transcript abundances increased under drought and ABA induction according to qRT-PCR and GUS staining. Furthermore, the Arabidopsis btb-a2.1/2/3 triple mutant exhibited enhanced drought tolerance, supporting the findings from the overexpression studies. Additionally, we detected a decrease in the stomatal aperture and water loss rate of the Arabidopsis btb-a2.1/2/3 mutant, suggesting the involvement of these genes in repressing stomatal closure. Importantly, the ABA signaling-responsive gene levels within Arabidopsis btb-a2.1/2/3 significantly increased compared with those in the wild type (WT) under drought stress. Based on such findings, Arabidopsis BTB-A2s negatively regulate drought stress via the ABA signaling pathway.
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Affiliation(s)
- Guohua Cai
- School of Biological Sciences, Jining Medical University, Rizhao 276800, China
| | - Yunxiao Zang
- School of Biological Sciences, Jining Medical University, Rizhao 276800, China
| | - Zhongqian Wang
- School of Biological Sciences, Jining Medical University, Rizhao 276800, China
| | - Shuoshuo Liu
- School of Biological Sciences, Jining Medical University, Rizhao 276800, China
| | - Guodong Wang
- School of Biological Sciences, Jining Medical University, Rizhao 276800, China
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13
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Zhu Y, You Y, Zheng S, Li J, Wang Y, Wu R, Fang Z, Liu H, Du S. ABA-importing transporter (AIT1) synergies enhances exogenous ABA minimize heavy metals accumulations in Arabidopsis. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134718. [PMID: 38797079 DOI: 10.1016/j.jhazmat.2024.134718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/13/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Exogenous abscisic acid (ABA) presents a novel approach to mitigate heavy metal (HM) accumulation in plants, yet its efficacy against multiple HMs and potential enhancement methods remain underexplored. In this study, we demonstrated that the exogenous ABA application simultaneously decreased Zn, Cd and Ni accumulation by 22-25 %, 27-39 % and 60-62 %, respectively, in wild-type (WT) Arabidopsis. Conversely, ABA reduced Pb in shoots but increased its root concentration. ABA application also modulated the expression of HM uptake genes, inhibiting IRT1, NRAMP1, NRAMP4, and HMA3, and increasing ZIP1 and ZIP4 expressions. Further analysis revealed that overexpressing the ABA-importing transporter (AIT1) in plants intensified the reduction of Cd, Zn, and Ni, compared to WT. However, the inhibitory effect of exogenous ABA on Pb accumulation was mitigated in shoots with higher AIT1 expression. Furthermore, HMs-induced growth inhibition and the damage to photosynthesis were also alleviated with ABA treatment. Conclusively, AIT1's synergistic effect with ABA effectively reduces Cd, Zn and Ni accumulation, offering a synergistic approach to mitigate HM stress in plants.
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Affiliation(s)
- Yaxin Zhu
- Key Laboratory of Pollution Exposure and Health Intervention Technology, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Yue You
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shihao Zheng
- Key Laboratory of Pollution Exposure and Health Intervention Technology, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Jiaxin Li
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yuying Wang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Ran Wu
- Key Laboratory of Pollution Exposure and Health Intervention Technology, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Zhiguo Fang
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Huijun Liu
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shaoting Du
- Key Laboratory of Pollution Exposure and Health Intervention Technology, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China.
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14
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Omelyanchuk NA, Lavrekha VV, Bogomolov AG, Dolgikh VA, Sidorenko AD, Zemlyanskaya EV. Computational Reconstruction of the Transcription Factor Regulatory Network Induced by Auxin in Arabidopsis thaliana L. PLANTS (BASEL, SWITZERLAND) 2024; 13:1905. [PMID: 39065433 PMCID: PMC11280061 DOI: 10.3390/plants13141905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/05/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024]
Abstract
In plant hormone signaling, transcription factor regulatory networks (TFRNs), which link the master transcription factors to the biological processes under their control, remain insufficiently characterized despite their crucial function. Here, we identify a TFRN involved in the response to the key plant hormone auxin and define its impact on auxin-driven biological processes. To reconstruct the TFRN, we developed a three-step procedure, which is based on the integrated analysis of differentially expressed gene lists and a representative collection of transcription factor binding profiles. Its implementation is available as a part of the CisCross web server. With the new method, we distinguished two transcription factor subnetworks. The first operates before auxin treatment and is switched off upon hormone application, the second is switched on by the hormone. Moreover, we characterized the functioning of the auxin-regulated TFRN in control of chlorophyll and lignin biosynthesis, abscisic acid signaling, and ribosome biogenesis.
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Affiliation(s)
- Nadya A. Omelyanchuk
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
| | - Viktoriya V. Lavrekha
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Anton G. Bogomolov
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
| | - Vladislav A. Dolgikh
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Aleksandra D. Sidorenko
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Elena V. Zemlyanskaya
- Department of Systems Biology, Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (N.A.O.); (V.V.L.); (A.G.B.); (V.A.D.); (A.D.S.)
- Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
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15
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Yang R, Yang Y, Yuan Y, Zhang B, Liu T, Shao Z, Li Y, Yang P, An J, Cao Y. MsABCG1, ATP-Binding Cassette G transporter from Medicago Sativa, improves drought tolerance in transgenic Nicotiana Tabacum. PHYSIOLOGIA PLANTARUM 2024; 176:e14446. [PMID: 39092508 DOI: 10.1111/ppl.14446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/21/2024] [Accepted: 07/08/2024] [Indexed: 08/04/2024]
Abstract
Drought has a devastating impact, presenting a formidable challenge to agricultural productivity and global food security. Among the numerous ABC transporter proteins found in plants, the ABCG transporters play a crucial role in plant responses to abiotic stress. In Medicago sativa, the function of ABCG transporters remains elusive. Here, we report that MsABCG1, a WBC-type transporter highly conserved in legumes, is critical for the response to drought in alfalfa. MsABCG1 is localized on the plasma membrane, with the highest expression observed in roots under normal conditions, and its expression is induced by drought, NaCl and ABA signalling. In transgenic tobacco, overexpression of MsABCG1 enhanced drought tolerance, evidenced by increased osmotic regulatory substances and reduced lipid peroxidation. Additionally, drought stress resulted in reduced ABA accumulation in tobacco overexpressing MsABCG1, demonstrating that overexpression of MsABCG1 enhanced drought tolerance was not via an ABA-dependent pathway. Furthermore, transgenic tobacco exhibited increased stomatal density and reduced stomatal aperture under drought stress, indicating that MsABCG1 has the potential to participate in stomatal regulation during drought stress. In summary, these findings suggest that MsABCG1 significantly enhances drought tolerance in plants and provides a foundation for developing efficient drought-resistance strategies in crops.
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Affiliation(s)
- Rongchen Yang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Yeyan Yang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Yinying Yuan
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Benzhong Zhang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Ting Liu
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Zitong Shao
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Yuanying Li
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Peizhi Yang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Jie An
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Yuman Cao
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
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16
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Xiao C, Du S, Zhou S, Cheng H, Rao S, Wang Y, Cheng S, Lei M, Li L. Identification and functional characterization of ABC transporters for selenium accumulation and tolerance in soybean. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108676. [PMID: 38714125 DOI: 10.1016/j.plaphy.2024.108676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/16/2024] [Accepted: 04/28/2024] [Indexed: 05/09/2024]
Abstract
ATP-binding cassette (ABC) transporters were crucial for various physiological processes like nutrition, development, and environmental interactions. Selenium (Se) is an essential micronutrient for humans, and its role in plants depends on applied dosage. ABC transporters are considered to participate in Se translocation in plants, but detailed studies in soybean are still lacking. We identified 196 ABC genes in soybean transcriptome under Se exposure using next-generation sequencing and single-molecule real-time sequencing technology. These proteins fell into eight subfamilies: 8 GmABCA, 51 GmABCB, 39 GmABCC, 5 GmABCD, 1 GmABCE, 10 GmABCF, 74 GmABCG, and 8 GmABCI, with amino acid length 121-3022 aa, molecular weight 13.50-341.04 kDa, and isoelectric point 4.06-9.82. We predicted a total of 15 motifs, some of which were specific to certain subfamilies (especially GmABCB, GmABCC, and GmABCG). We also found predicted alternative splicing in GmABCs: 60 events in selenium nanoparticles (SeNPs)-treated, 37 in sodium selenite (Na2SeO3)-treated samples. The GmABC genes showed differential expression in leaves and roots under different application of Se species and Se levels, most of which are belonged to GmABCB, GmABCC, and GmABCG subfamilies with functions in auxin transport, barrier formation, and detoxification. Protein-protein interaction and weighted gene co-expression network analysis suggested functional gene networks with hub ABC genes, contributing to our understanding of their biological functions. Our results illuminate the contributions of GmABC genes to Se accumulation and tolerance in soybean and provide insight for a better understanding of their roles in soybean as well as in other plants.
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Affiliation(s)
- Chunmei Xiao
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Sainan Du
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Shengli Zhou
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Hua Cheng
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Shen Rao
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Yuan Wang
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Shuiyuan Cheng
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China
| | - Ming Lei
- Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning, 530023, China.
| | - Li Li
- National R&D for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, 430023, China; School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, 430023, China.
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17
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Yang Q, Deng X, Liu T, Qian J, Zhang P, Zhu E, Wang J, Zhu X, Kudoyarova G, Zhao J, Zhang K. Abscisic acid root-to-shoot translocation by transporter AtABCG25 mediates stomatal movements in Arabidopsis. PLANT PHYSIOLOGY 2024; 195:671-684. [PMID: 38345859 DOI: 10.1093/plphys/kiae073] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 01/05/2024] [Indexed: 05/02/2024]
Abstract
The phytohormone abscisic acid (ABA) plays a central role in regulating stomatal movements under drought conditions. The root-derived peptide CLAVATA3/EMBRYO SURROUNDING REGION-RELATED 25 (CLE25) moves from the root to shoot for activating ABA biosynthesis under drought conditions. However, the root-to-shoot translocation of root-derived ABA and its regulation of stomatal movements in the shoot remain to be clarified. Here, we reveal that the ABA transporter ATP-binding cassette subfamily G member 25 (AtABCG25) mediates root-to-shoot translocation of ABA and ABA-glucosyl ester (ABA-GE) in Arabidopsis (Arabidopsis thaliana). Isotope-labeled ABA tracer experiments and hormone quantification in xylem sap showed that the root-to-shoot translocation of ABA and ABA-GE was substantially impaired in the atabcg25 mutant under nondrought and drought conditions. However, the contents of ABA and ABA-GE in the leaves were lower in the atabcg25 mutant than in the wild type (WT) under nondrought but similar under drought conditions. Consistently, the stomatal closure was suppressed in the atabcg25 mutant under nondrought but not under drought conditions. The transporter activity assays showed that AtABCG25 directly exported ABA and ABA-GE in planta and in yeast (Saccharomyces cerevisiae) cells. Thus, we proposed a working model in which root-derived ABA transported by AtABCG25 via xylem mediates stomatal movements in the shoot under nondrought conditions but might exhibit little effect on stomatal movements under drought conditions. These findings extend the functions of AtABCG25 and provide insights into the long-distance translocation of ABA and its role in stomatal movements.
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Affiliation(s)
- Qin Yang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Xiaojuan Deng
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Ting Liu
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Jiayun Qian
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Penghong Zhang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Engao Zhu
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Jingqi Wang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Xiaoxian Zhu
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Guzel Kudoyarova
- Ufa Institute of Biology, Ufa Federal Research Centre, RAS, Prospekt Oktyabrya 69, Ufa 450054, Russia
| | - Jiangzhe Zhao
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
| | - Kewei Zhang
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, College of Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, PR China
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18
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Kim JS, Kidokoro S, Yamaguchi-Shinozaki K, Shinozaki K. Regulatory networks in plant responses to drought and cold stress. PLANT PHYSIOLOGY 2024; 195:170-189. [PMID: 38514098 PMCID: PMC11060690 DOI: 10.1093/plphys/kiae105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 02/15/2024] [Indexed: 03/23/2024]
Abstract
Drought and cold represent distinct types of abiotic stress, each initiating unique primary signaling pathways in response to dehydration and temperature changes, respectively. However, a convergence at the gene regulatory level is observed where a common set of stress-responsive genes is activated to mitigate the impacts of both stresses. In this review, we explore these intricate regulatory networks, illustrating how plants coordinate distinct stress signals into a collective transcriptional strategy. We delve into the molecular mechanisms of stress perception, stress signaling, and the activation of gene regulatory pathways, with a focus on insights gained from model species. By elucidating both the shared and distinct aspects of plant responses to drought and cold, we provide insight into the adaptive strategies of plants, paving the way for the engineering of stress-resilient crop varieties that can withstand a changing climate.
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Affiliation(s)
- June-Sik Kim
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045Japan
- Institute of Plant Science and Resources, Okayama University, 2-20-1 Chuo, Kurashiki, 710-0046Japan
| | - Satoshi Kidokoro
- School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8502Japan
| | - Kazuko Yamaguchi-Shinozaki
- Research Institute for Agriculture and Life Sciences, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502Japan
- Graduate School of Agriculture and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032Japan
| | - Kazuo Shinozaki
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, 230-0045Japan
- Institute for Advanced Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601Japan
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19
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Yun SH, Khan IU, Noh B, Noh YS. Genomic overview of INA-induced NPR1 targeting and transcriptional cascades in Arabidopsis. Nucleic Acids Res 2024; 52:3572-3588. [PMID: 38261978 DOI: 10.1093/nar/gkae019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/20/2023] [Accepted: 01/03/2024] [Indexed: 01/25/2024] Open
Abstract
The phytohormone salicylic acid (SA) triggers transcriptional reprogramming that leads to SA-induced immunity in plants. NPR1 is an SA receptor and master transcriptional regulator in SA-triggered transcriptional reprogramming. Despite the indispensable role of NPR1, genome-wide direct targets of NPR1 specific to SA signaling have not been identified. Here, we report INA (functional SA analog)-specific genome-wide targets of Arabidopsis NPR1 in plants expressing GFP-fused NPR1 under its native promoter. Analyses of NPR1-dependently expressed direct NPR1 targets revealed that NPR1 primarily activates genes encoding transcription factors upon INA treatment, triggering transcriptional cascades required for INA-induced transcriptional reprogramming and immunity. We identified genome-wide targets of a histone acetyltransferase, HAC1, including hundreds of co-targets shared with NPR1, and showed that NPR1 and HAC1 regulate INA-induced histone acetylation and expression of a subset of the co-targets. Genomic NPR1 targeting was principally mediated by TGACG-motif binding protein (TGA) transcription factors. Furthermore, a group of NPR1 targets mostly encoding transcriptional regulators was already bound to NPR1 in the basal state and showed more rapid and robust induction than other NPR1 targets upon SA signaling. Thus, our study unveils genome-wide NPR1 targeting, its role in transcriptional reprogramming, and the cooperativity between NPR1, HAC1, and TGAs in INA-induced immunity.
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Affiliation(s)
- Se-Hun Yun
- School of Biological Sciences, Seoul National University, Seoul 08826, Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul 08826, Korea
| | - Irfan Ullah Khan
- School of Biological Sciences, Seoul National University, Seoul 08826, Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul 08826, Korea
| | - Bosl Noh
- Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Korea
| | - Yoo-Sun Noh
- School of Biological Sciences, Seoul National University, Seoul 08826, Korea
- Research Center for Plant Plasticity, Seoul National University, Seoul 08826, Korea
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20
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Wang S, He X, Tian J, Wu R, Liu H, Fang Z, Du S. NRT1.2 overexpression enhances the synergistic interplay between ABA-generating bacteria and biochars in reducing heavy metal accumulation in pak choi. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171276. [PMID: 38417500 DOI: 10.1016/j.scitotenv.2024.171276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/07/2024] [Accepted: 02/23/2024] [Indexed: 03/01/2024]
Abstract
The agricultural sector faces severe challenges owing to heavy metal (HM) contamination of farmlands, requiring urgent preventive measures. To address this, we investigated the impact of the synergistic application of Azospirillum brasilense, a growth-promoting rhizobacterium producing abscisic acid (ABA), and biochar to minimize HM accumulation in pak choi, using three distinct expression levels of the ABA transporter NRT1.2 in pak choi and three different types of contaminated soils as experimental materials. The results revealed that pak choi with low, medium, and high NRT1.2 expression intensity, when subjected to bacterial strain-biochar treatment, exhibited an increasing trend in ABA content compared to the control. Correspondingly, the aboveground HM content decreased by 1-49 %, 22-52 %, and 15-96 %, whereas the fresh weight increased by 12-38 %, 88-126 %, and 152-340 %, respectively, showing a significant correlation with NRT1.2 expression. Pearson correlation analysis demonstrated that NRT1.2 expression intensity was inversely associated with the combined treatment's reduction in HM accumulation and positively correlated with the promotional effect. Simultaneously, soil discrepancies significantly affected the combined treatment, which was likely associated with variations in the active forms of HM in each soil. Consequently, when employing ABA-producing bacteria for mitigating crop HM accumulation, selecting plants with higher relative NRT1.2 expression intensity, combined with biochar, is recommended.
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Affiliation(s)
- Shengtao Wang
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Xiaolin He
- Jiangxi Province Agricultural Technology Extension Center, Nanchang 330045, China
| | - Jiaying Tian
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Ran Wu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China
| | - Huijun Liu
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Zhiguo Fang
- College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Shaoting Du
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China.
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21
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Yu H, Bi X, Li Z, Fu X, Li Y, Li Y, Yang Y, Liu D, Li G, Dong W, Hu F. Transcriptomic Analysis of Alternative Splicing Events during Different Fruit Ripening Stages of Coffea arabica L. Genes (Basel) 2024; 15:459. [PMID: 38674393 PMCID: PMC11050144 DOI: 10.3390/genes15040459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
To date, genomic and transcriptomic data on Coffea arabica L. in public databases are very limited, and there has been no comprehensive integrated investigation conducted on alternative splicing (AS). Previously, we have constructed and sequenced eighteen RNA-seq libraries of C. arabica at different ripening stages of fruit development. From this dataset, a total of 3824, 2445, 2564, 2990, and 3162 DSGs were identified in a comparison of different fruit ripening stages. The largest proportion of DSGs, approximately 65%, were of the skipped exon (SE) type. Biologically, 9 and 29 differentially expressed DSGs in the spliceosome pathway and carbon metabolism pathway, respectively, were identified. These DSGs exhibited significant variations, primarily in S1 vs. S2 and S5 vs. S6, and they involve many aspects of organ development, hormone transduction, and the synthesis of flavor components. Through the examination of research findings regarding the biological functions and biochemical pathways associated with DSGs and DEGs, it was observed that six DSGs significantly enriched in ABC transporters, namely, LOC113712394, LOC113726618, LOC113739972, LOC113725240, LOC113730214, and LOC113707447, were continually down-regulated at the fruit ripening stage. In contrast, a total of four genes, which were LOC113732777, LOC113727880, LOC113690566, and LOC113711936, including those enriched in the cysteine and methionine metabolism, were continually up-regulated. Collectively, our findings may contribute to the exploration of alternative splicing mechanisms for focused investigations of potential genes associated with the ripening of fruits in C. arabica.
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Affiliation(s)
- Haohao Yu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Xiaofei Bi
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Zhongxian Li
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Xingfei Fu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Yanan Li
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Yaqi Li
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Yang Yang
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Dexin Liu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Guiping Li
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
| | - Wenjiang Dong
- Spice and Beverage Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wanning 571533, China
| | - Faguang Hu
- Institute of Tropical and Subtropical Cash Crops, Yunnan Academy of Agricultural Sciences, Baoshan 678000, China; (H.Y.); (X.B.)
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22
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Devi R, Goyal P, Verma B, Hussain S, Chowdhary F, Arora P, Gupta S. A transcriptome-wide identification of ATP-binding cassette (ABC) transporters revealed participation of ABCB subfamily in abiotic stress management of Glycyrrhiza glabra L. BMC Genomics 2024; 25:315. [PMID: 38532362 DOI: 10.1186/s12864-024-10227-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 03/15/2024] [Indexed: 03/28/2024] Open
Abstract
Transcriptome-wide survey divulged a total of 181 ABC transporters in G. glabra which were phylogenetically classified into six subfamilies. Protein-Protein interactions revealed nine putative GgABCBs (-B6, -B14, -B15, -B25, -B26, -B31, -B40, -B42 &-B44) corresponding to five AtABCs orthologs (-B1, -B4, -B11, -B19, &-B21). Significant transcript accumulation of ABCB6 (31.8 folds), -B14 (147.5 folds), -B15 (17 folds), -B25 (19.7 folds), -B26 (18.31 folds), -B31 (61.89 folds), -B40 (1273 folds) and -B42 (51 folds) was observed under the influence of auxin. Auxin transport-specific inhibitor, N-1-naphthylphthalamic acid, showed its effectiveness only at higher (10 µM) concentration where it down regulated the expression of ABCBs, PINs (PIN FORMED) and TWD1 (TWISTED DWARF 1) genes in shoot tissues, while their expression was seen to enhance in the root tissues. Further, qRT-PCR analysis under various growth conditions (in-vitro, field and growth chamber), and subjected to abiotic stresses revealed differential expression implicating role of ABCBs in stress management. Seven of the nine genes were shown to be involved in the stress physiology of the plant. GgABCB6, 15, 25 and ABCB31 were induced in multiple stresses, while GgABCB26, 40 & 42 were exclusively triggered under drought stress. No study pertaining to the ABC transporters from G. glabra is available till date. The present investigation will give an insight to auxin transportation which has been found to be associated with plant growth architecture; the knowledge will help to understand the association between auxin transportation and plant responses under the influence of various conditions.
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Affiliation(s)
- Ritu Devi
- Plant Biotechnology Division, Jammu, India
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pooja Goyal
- Plant Biotechnology Division, Jammu, India
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Registered from Guru Nanak Dev University, Amritsar, India
| | - Bhawna Verma
- Plant Biotechnology Division, Jammu, India
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shahnawaz Hussain
- Plant Biotechnology Division, Jammu, India
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Fariha Chowdhary
- Plant Biotechnology Division, Jammu, India
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Palak Arora
- Plant Biotechnology Division, Jammu, India
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India
| | - Suphla Gupta
- Plant Biotechnology Division, Jammu, India.
- CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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23
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Sun D, Xu J, Wang H, Guo H, Chen Y, Zhang L, Li J, Hao D, Yao X, Li X. Genome-Wide Identification and Expression Analysis of the PUB Gene Family in Zoysia japonica under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:788. [PMID: 38592813 PMCID: PMC10974829 DOI: 10.3390/plants13060788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024]
Abstract
The U-box protein family of ubiquitin ligases is important in the biological processes of plant growth, development, and biotic and abiotic stress responses. Plants in the genus Zoysia are recognized as excellent warm-season turfgrass species with drought, wear and salt tolerance. In this study, we conducted the genome-wide identification of plant U-box (PUB) genes in Zoysia japonica based on U-box domain searching. In total, 71 ZjPUB genes were identified, and a protein tree was constructed of AtPUBs, OsPUBs, and ZjPUBs, clustered into five groups. The gene structures, characteristics, cis-elements and protein interaction prediction network were analyzed. There were mainly ABRE, ERE, MYB and MYC cis-elements distributed in the promoter regions of ZjPUBs. ZjPUBs were predicted to interact with PDR1 and EXO70B1, related to the abscisic acid signaling pathway. To better understand the roles of ZjPUBs under salt stress, the expression levels of 18 ZjPUBs under salt stress were detected using transcriptome data and qRT-PCR analysis, revealing that 16 ZjPUBs were upregulated in the roots under salt treatment. This indicates that ZjPUBs might participate in the Z. japonica salt stress response. This research provides insight into the Z. japonica PUB gene family and may support the genetic improvement in the molecular breeding of salt-tolerant zoysiagrass varieties.
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Affiliation(s)
- Daojin Sun
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Jingya Xu
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Haoran Wang
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Hailin Guo
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Yu Chen
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Ling Zhang
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Jianjian Li
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Dongli Hao
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Xiang Yao
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
| | - Xiaohui Li
- The National Forestry and Grassland Administration Engineering Research Center for Germplasm Innovation and Utilization of Warm-Season Turfgrasses, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China; (D.S.); (H.G.)
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen), Nanjing 210014, China
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24
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Moy A, Czajka K, Michael P, Nkongolo K. Gene expression profiling of Jack Pine (Pinus banksiana) under copper stress: Identification of genes associated with copper resistance. PLoS One 2024; 19:e0296027. [PMID: 38452110 PMCID: PMC10919686 DOI: 10.1371/journal.pone.0296027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 12/05/2023] [Indexed: 03/09/2024] Open
Abstract
Understanding the genetic response of plants to copper stress is a necessary step to improving the utility of plants for environmental remediation and restoration. The objectives of this study were to: 1) characterize the transcriptome of Jack Pine (Pinus banksiana) under copper stress, 2) analyze the gene expression profile shifts of genotypes exposed to copper ion toxicity, and 3) identify genes associated with copper resistance. Pinus banksiana seedlings were treated with 10 mmoles of copper and screened in a growth chamber. There were 6,213 upregulated and 29,038 downregulated genes expressed in the copper resistant genotypes compared to the susceptible genotypes at a high stringency based on the false discovery rate (FDR). Overall, 25,552 transcripts were assigned gene ontology. Among the top upregulated genes, the response to stress, the biosynthetic process, and the response to chemical stimuli terms represented the highest proportion of gene expression for the biological processes. For the molecular function category, the majority of expressed genes were associated with nucleotide binding followed by transporter activity, and kinase activity. The majority of upregulated genes were located in the plasma membrane while half of the total downregulated genes were associated with the extracellular region. Two candidate genes associated with copper resistance were identified including genes encoding for heavy metal-associated isoprenylated plant proteins (AtHIP20 and AtHIP26) and a gene encoding the pleiotropic drug resistance protein 1 (NtPDR1). This study represents the first report of transcriptomic responses of a conifer species to copper ions.
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Affiliation(s)
- Alistar Moy
- Biomolecular Sciences Program, School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - Karolina Czajka
- Biomolecular Sciences Program, School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - Paul Michael
- Biomolecular Sciences Program, School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
| | - Kabwe Nkongolo
- Biomolecular Sciences Program, School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
- Department of Biology, School of Natural Sciences, Laurentian University, Sudbury, Ontario, Canada
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25
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Zhou Y, Wang Y, Zhang D, Liang J. Endomembrane-biased dimerization of ABCG16 and ABCG25 transporters determines their substrate selectivity in ABA-regulated plant growth and stress responses. MOLECULAR PLANT 2024; 17:478-495. [PMID: 38327051 DOI: 10.1016/j.molp.2024.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/28/2023] [Accepted: 02/05/2024] [Indexed: 02/09/2024]
Abstract
ATP-binding cassette (ABC) transporters are integral membrane proteins that have evolved diverse functions fulfilled via the transport of various substrates. In Arabidopsis, the G subfamily of ABC proteins is particularly abundant and participates in multiple signaling pathways during plant development and stress responses. In this study, we revealed that two Arabidopsis ABCG transporters, ABCG16 and ABCG25, engage in ABA-mediated stress responses and early plant growth through endomembrane-specific dimerization-coupled transport of ABA and ABA-glucosyl ester (ABA-GE), respectively. We first revealed that ABCG16 contributes to osmotic stress tolerance via ABA signaling. More specifically, ABCG16 induces cellular ABA efflux in both yeast and plant cells. Using FRET analysis, we showed that ABCG16 forms obligatory homodimers for ABA export activity and that the plasma membrane-resident ABCG16 homodimers specifically respond to ABA, undergoing notable conformational changes. Furthermore, we demonstrated that ABCG16 heterodimerizes with ABCG25 at the endoplasmic reticulum (ER) membrane and facilitates the ER entry of ABA-GE in both Arabidopsis and tobacco cells. The specific responsiveness of the ABCG16-ABCG25 heterodimer to ABA-GE and the superior growth of their double mutant support an inhibitory role of these two ABCGs in early seedling establishment via regulation of ABA-GE translocation across the ER membrane. Our endomembrane-specific analysis of the FRET signals derived from the homo- or heterodimerized ABCG complexes allowed us to link endomembrane-biased dimerization to the translocation of distinct substrates by ABCG transporters, providing a prototypic framework for understanding the omnipotence of ABCG transporters in plant development and stress responses.
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Affiliation(s)
- Yeling Zhou
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China; Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
| | - Yuzhu Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops, Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Dong Zhang
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Jiansheng Liang
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China; Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China.
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Ayyappan V, Sripathi VR, Xie S, Saha MC, Hayford R, Serba DD, Subramani M, Thimmapuram J, Todd A, Kalavacharla VK. Genome-wide profiling of histone (H3) lysine 4 (K4) tri-methylation (me3) under drought, heat, and combined stresses in switchgrass. BMC Genomics 2024; 25:223. [PMID: 38424499 PMCID: PMC10903042 DOI: 10.1186/s12864-024-10068-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/30/2024] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Switchgrass (Panicum virgatum L.) is a warm-season perennial (C4) grass identified as an important biofuel crop in the United States. It is well adapted to the marginal environment where heat and moisture stresses predominantly affect crop growth. However, the underlying molecular mechanisms associated with heat and drought stress tolerance still need to be fully understood in switchgrass. The methylation of H3K4 is often associated with transcriptional activation of genes, including stress-responsive. Therefore, this study aimed to analyze genome-wide histone H3K4-tri-methylation in switchgrass under heat, drought, and combined stress. RESULTS In total, ~ 1.3 million H3K4me3 peaks were identified in this study using SICER. Among them, 7,342; 6,510; and 8,536 peaks responded under drought (DT), drought and heat (DTHT), and heat (HT) stresses, respectively. Most DT and DTHT peaks spanned 0 to + 2000 bases from the transcription start site [TSS]. By comparing differentially marked peaks with RNA-Seq data, we identified peaks associated with genes: 155 DT-responsive peaks with 118 DT-responsive genes, 121 DTHT-responsive peaks with 110 DTHT-responsive genes, and 175 HT-responsive peaks with 136 HT-responsive genes. We have identified various transcription factors involved in DT, DTHT, and HT stresses. Gene Ontology analysis using the AgriGO revealed that most genes belonged to biological processes. Most annotated peaks belonged to metabolite interconversion, RNA metabolism, transporter, protein modifying, defense/immunity, membrane traffic protein, transmembrane signal receptor, and transcriptional regulator protein families. Further, we identified significant peaks associated with TFs, hormones, signaling, fatty acid and carbohydrate metabolism, and secondary metabolites. qRT-PCR analysis revealed the relative expressions of six abiotic stress-responsive genes (transketolase, chromatin remodeling factor-CDH3, fatty-acid desaturase A, transmembrane protein 14C, beta-amylase 1, and integrase-type DNA binding protein genes) that were significantly (P < 0.05) marked during drought, heat, and combined stresses by comparing stress-induced against un-stressed and input controls. CONCLUSION Our study provides a comprehensive and reproducible epigenomic analysis of drought, heat, and combined stress responses in switchgrass. Significant enrichment of H3K4me3 peaks downstream of the TSS of protein-coding genes was observed. In addition, the cost-effective experimental design, modified ChIP-Seq approach, and analyses presented here can serve as a prototype for other non-model plant species for conducting stress studies.
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Affiliation(s)
- Vasudevan Ayyappan
- Molecular Genetics and Epigenomics Laboratory, Delaware State University, Dover, DE, 19901, USA.
| | | | - Shaojun Xie
- Bioinformatics Core, Purdue University, West Lafayette, IN, 47907, USA
| | - Malay C Saha
- Noble Research Institute, LLC, Ardmore, OK, 73401, USA
| | - Rita Hayford
- Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, 19716, USA
| | - Desalegn D Serba
- USDA-ARS, U.S. Arid Land Agricultural Research Center, Maricopa, AZ, 85138, USA.
| | - Mayavan Subramani
- Molecular Genetics and Epigenomics Laboratory, Delaware State University, Dover, DE, 19901, USA
| | | | - Antonette Todd
- Molecular Genetics and Epigenomics Laboratory, Delaware State University, Dover, DE, 19901, USA
| | - Venu Kal Kalavacharla
- Molecular Genetics and Epigenomics Laboratory, Delaware State University, Dover, DE, 19901, USA
- Center for Integrated Biological and Environmental Research (CIBER), Delaware State University, Dover, DE, 19901, USA
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Kou X, Zhao Z, Xu X, Li C, Wu J, Zhang S. Identification and expression analysis of ATP-binding cassette (ABC) transporters revealed its role in regulating stress response in pear (Pyrus bretchneideri). BMC Genomics 2024; 25:169. [PMID: 38347517 PMCID: PMC10863237 DOI: 10.1186/s12864-024-10063-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/29/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND ATP-binding cassette (ABC) transporter proteins constitute a plant gene superfamily crucial for growth, development, and responses to environmental stresses. Despite their identification in various plants like maize, rice, and Arabidopsis, little is known about the information on ABC transporters in pear. To investigate the functions of ABC transporters in pear development and abiotic stress response, we conducted an extensive analysis of ABC gene family in the pear genome. RESULTS In this study, 177 ABC transporter genes were successfully identified in the pear genome, classified into seven subfamilies: 8 ABCAs, 40 ABCBs, 24 ABCCs, 8 ABCDs, 9 ABCEs, 8 ABCFs, and 80 ABCGs. Ten motifs were common among all ABC transporter proteins, while distinct motif structures were observed for each subfamily. Distribution analysis revealed 85 PbrABC transporter genes across 17 chromosomes, driven primarily by WGD and dispersed duplication. Cis-regulatory element analysis of PbrABC promoters indicated associations with phytohormones and stress responses. Tissue-specific expression profiles demonstrated varied expression levels across tissues, suggesting diverse functions in development. Furthermore, several PbrABC genes responded to abiotic stresses, with 82 genes sensitive to salt stress, including 40 upregulated and 23 downregulated genes. Additionally, 91 genes were responsive to drought stress, with 22 upregulated and 36 downregulated genes. These findings highlight the pivotal role of PbrABC genes in abiotic stress responses. CONCLUSION This study provides evolutionary insights into PbrABC transporter genes, establishing a foundation for future research on their functions in pear. The identified motifs, distribution patterns, and stress-responsive expressions contribute to understanding the regulatory mechanisms of ABC transporters in pear. The observed tissue-specific expression profiles suggest diverse roles in developmental processes. Notably, the significant responses to salt and drought stress emphasize the importance of PbrABC genes in mediating adaptive responses. Overall, our study advances the understanding of PbrABC transporter genes in pear, opening avenues for further investigations in plant molecular biology and stress physiology.
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Affiliation(s)
- Xiaobing Kou
- School of Life Sciences, Nantong University, Nantong, 226019, Jiangsu, People's Republic of China.
| | - Zhen Zhao
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xinqi Xu
- School of Life Sciences, Nantong University, Nantong, 226019, Jiangsu, People's Republic of China
| | - Chang Li
- School of Life Sciences, Nantong University, Nantong, 226019, Jiangsu, People's Republic of China
| | - Juyou Wu
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shaoling Zhang
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
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Yuan D, Wu X, Jiang X, Gong B, Gao H. Types of Membrane Transporters and the Mechanisms of Interaction between Them and Reactive Oxygen Species in Plants. Antioxidants (Basel) 2024; 13:221. [PMID: 38397819 PMCID: PMC10886204 DOI: 10.3390/antiox13020221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/03/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Membrane transporters are proteins that mediate the entry and exit of substances through the plasma membrane and organellar membranes and are capable of recognizing and binding to specific substances, thereby facilitating substance transport. Membrane transporters are divided into different types, e.g., ion transporters, sugar transporters, amino acid transporters, and aquaporins, based on the substances they transport. These membrane transporters inhibit reactive oxygen species (ROS) generation through ion regulation, sugar and amino acid transport, hormone induction, and other mechanisms. They can also promote enzymatic and nonenzymatic reactions in plants, activate antioxidant enzyme activity, and promote ROS scavenging. Moreover, membrane transporters can transport plant growth regulators, solute proteins, redox potential regulators, and other substances involved in ROS metabolism through corresponding metabolic pathways, ultimately achieving ROS homeostasis in plants. In turn, ROS, as signaling molecules, can affect the activity of membrane transporters under abiotic stress through collaboration with ions and involvement in hormone metabolic pathways. The research described in this review provides a theoretical basis for improving plant stress resistance, promoting plant growth and development, and breeding high-quality plant varieties.
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Affiliation(s)
| | | | | | | | - Hongbo Gao
- Collaborative Innovation Center of Vegetable Industry in Hebei, College of Horticulture, Hebei Agricultural University, Baoding 071000, China; (D.Y.); (X.W.); (X.J.); (B.G.)
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Li H, Li C, Sun D, Yang ZM. OsPDR20 is an ABCG metal transporter regulating cadmium accumulation in rice. J Environ Sci (China) 2024; 136:21-34. [PMID: 37923431 DOI: 10.1016/j.jes.2022.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 09/14/2022] [Accepted: 09/14/2022] [Indexed: 11/07/2023]
Abstract
Cadmium (Cd) is a non-essential toxic heavy metal, seriously posing high environmental risks to human health. Digging genetic resources relevant to functional genes is important for understanding the metal absorption and accumulation in crops and bioremediation of Cd-polluted environments. This study investigated a functionally uncharacterized ATP binding cassette transporter G family (ABCG) gene encoding a Pleiotropic Drug Resistance 20 (PDR20) type metal transporter which is localized to the plasma membrane of rice. OsPDR20 was transcriptionally expressed in almost all tissues and organs in lifespan and was strongly induced in roots and shoots of young rice under Cd stress. Ectopic expression of OsPDR20 in a yeast mutant ycf1 sensitive to Cd conferred cellular tolerance with less Cd accumulation. Knockdown of OsPDR20 by RNA interference (RNAi) moderately attenuated root/shoot elongation and biomass, with reduced chlorophylls in rice grown under hydroponic medium with 2 and 10 µmol/L Cd, but led to more Cd accumulation. A field trial of rice grown in a realistic Cd-contaminated soil (0.40 mg/kg) showed that RNAi plants growth and development were also compromised compared to wild-type (WT), with smaller panicles and lower spikelet fertility but little effect on yield of grains. However, OsPDR20 suppression resulted in unexpectedly higher levels of Cd accumulation in rice straw including lower leaves and culm and grain. These results suggest that OsPDR20 is actively involved in Cd accumulation and homeostasis in rice crops. The increased Cd accumulation in the RNAi plants has the potential application in phytoremediation of Cd-polluted wetland soils.
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Affiliation(s)
- He Li
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Li
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Di Sun
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Zhi Min Yang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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Xin J, Zhou Y, Qiu Y, Geng H, Wang Y, Song Y, Liang J, Yan K. Structural insights into AtABCG25, an angiosperm-specific abscisic acid exporter. PLANT COMMUNICATIONS 2024; 5:100776. [PMID: 38050355 PMCID: PMC10811370 DOI: 10.1016/j.xplc.2023.100776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 12/06/2023]
Abstract
Cellular hormone homeostasis is essential for precise spatial and temporal signaling responses and plant fitness. Abscisic acid (ABA) plays pivotal roles in orchestrating various developmental and stress responses and confers fitness benefits over ecological and evolutionary timescales in terrestrial plants. Cellular ABA level is regulated by complex processes, including biosynthesis, catabolism, and transport. AtABCG25 is the first ABA exporter identified through genetic screening and affects diverse ABA responses. Resolving the structural basis of ABA export by ABCG25 is critical for further manipulations of ABA homeostasis and plant fitness. We used cryo-electron microscopy to elucidate the structural dynamics of AtABCG25 and successfully characterized different states, including apo AtABCG25, ABA-bound AtABCG25, and ATP-bound AtABCG25 (E232Q). Notably, AtABCG25 forms a homodimer that features a deep, slit-like cavity in the transmembrane domain, and we precisely characterized the critical residues in the cavity where ABA binds. ATP binding triggers closure of the nucleotide-binding domains and conformational transitions in the transmembrane domains. We show that AtABCG25 belongs to a conserved ABCG subfamily that originated during the evolution of angiosperms. This subfamily neofunctionalized to regulate seed germination via the endosperm, in concert with the evolution of this angiosperm-specific, embryo-nourishing tissue. Collectively, these findings provide valuable insights into the intricate substrate recognition and transport mechanisms of the ABA exporter AtABCG25, paving the way for genetic manipulation of ABA homeostasis and plant fitness.
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Affiliation(s)
- Jian Xin
- Department of Chemical Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yeling Zhou
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yichun Qiu
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - He Geng
- Department of Chemical Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuzhu Wang
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yi Song
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Jiansheng Liang
- Institute of Plant and Food Science, Department of Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Kaige Yan
- Department of Chemical Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen 518055, China; Institute for Biological Electron Microscopy, Southern University of Science and Technology, Shenzhen, Guangdong, China.
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Zhou H, Shi H, Yang Y, Feng X, Chen X, Xiao F, Lin H, Guo Y. Insights into plant salt stress signaling and tolerance. J Genet Genomics 2024; 51:16-34. [PMID: 37647984 DOI: 10.1016/j.jgg.2023.08.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
Soil salinization is an essential environmental stressor, threatening agricultural yield and ecological security worldwide. Saline soils accumulate excessive soluble salts which are detrimental to most plants by limiting plant growth and productivity. It is of great necessity for plants to efficiently deal with the adverse effects caused by salt stress for survival and successful reproduction. Multiple determinants of salt tolerance have been identified in plants, and the cellular and physiological mechanisms of plant salt response and adaption have been intensely characterized. Plants respond to salt stress signals and rapidly initiate signaling pathways to re-establish cellular homeostasis with adjusted growth and cellular metabolism. This review summarizes the advances in salt stress perception, signaling, and response in plants. A better understanding of plant salt resistance will contribute to improving crop performance under saline conditions using multiple engineering approaches. The rhizosphere microbiome-mediated plant salt tolerance as well as chemical priming for enhanced plant salt resistance are also discussed in this review.
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Affiliation(s)
- Huapeng Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China.
| | - Haifan Shi
- College of Grassland Science, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Yongqing Yang
- State Key Laboratory of Plant Environmental Resilience, China Agricultural University, Beijing 100193, China
| | - Xixian Feng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xi Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Fei Xiao
- Xinjiang Key Laboratory of Biological Resources and Genetic Engineering, College of Life Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, China
| | - Honghui Lin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, China Agricultural University, Beijing 100193, China.
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Pahal S, Srivastava H, Saxena S, Tribhuvan KU, Kaila T, Sharma S, Grewal S, Singh NK, Gaikwad K. Comparative transcriptome analysis of two contrasting genotypes provides new insights into the drought response mechanism in pigeon pea (Cajanus cajan L. Millsp.). Genes Genomics 2024; 46:65-94. [PMID: 37985548 DOI: 10.1007/s13258-023-01460-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 10/01/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Despite plant's ability to adapt and withstand challenging environments, drought poses a severe threat to their growth and development. Although pigeon pea is already quite resistant to drought, the prolonged dehydration induced by the aberrant climate poses a serious threat to their survival and productivity. OBJECTIVE Comparative physiological and transcriptome analyses of drought-tolerant (CO5) and drought-sensitive (CO1) pigeon pea genotypes subjected to drought stress were carried out in order to understand the molecular basis of drought tolerance in pigeon pea. METHODS The transcriptomic analysis allowed us to examine how drought affects the gene expression of C. cajan. Using bioinformatics tools, the unigenes were de novo assembled, annotated, and functionally evaluated. Additionally, a homology-based sequence search against the droughtDB database was performed to identify the orthologs of the DEGs. RESULTS 1102 potential drought-responsive genes were found to be differentially expressed genes (DEGs) between drought-tolerant and drought-sensitive genotypes. These included Abscisic acid insensitive 5 (ABI5), Nuclear transcription factor Y subunit A-7 (NF-YA7), WD40 repeat-containing protein 55 (WDR55), Anthocyanidin reductase (ANR) and Zinc-finger homeodomain protein 6 (ZF-HD6) and were highly expressed in the tolerant genotype. Further, GO analysis revealed that the most enriched classes belonged to biosynthetic and metabolic processes in the biological process category, binding and catalytic activity in the molecular function category and nucleus and protein-containing complex in the cellular component category. Results of KEGG pathway analysis revealed that the DEGs were significantly abundant in signalling pathways such as plant hormone signal transduction and MAPK signalling pathways. Consequently, in our investigation, we have identified and validated by qPCR a group of genes involved in signal reception and propagation, stress-specific TFs, and basal regulatory genes associated with drought response. CONCLUSION In conclusion, our comprehensive transcriptome dataset enabled the discovery of candidate genes connected to pathways involved in pigeon pea drought response. Our research uncovered a number of unidentified genes and transcription factors that could be used to understand and improve susceptibility to drought.
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Affiliation(s)
- Suman Pahal
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar, India
| | | | - Swati Saxena
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | | | - Tanvi Kaila
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | - Sandhya Sharma
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | - Sapna Grewal
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar, India.
| | - Nagendra K Singh
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | - Kishor Gaikwad
- ICAR-National Institute for Plant Biotechnology, New Delhi, India.
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Li ZJ, Tang SY, Gao HS, Ren JY, Xu PL, Dong WP, Zheng Y, Yang W, Yu YY, Guo JH, Luo YM, Niu DD, Jiang CH. Plant growth-promoting rhizobacterium Bacillus cereus AR156 induced systemic resistance against multiple pathogens by priming of camalexin synthesis. PLANT, CELL & ENVIRONMENT 2024; 47:337-353. [PMID: 37775913 DOI: 10.1111/pce.14729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 09/04/2023] [Accepted: 09/17/2023] [Indexed: 10/01/2023]
Abstract
Phytoalexins play a crucial role in plant immunity. However, the mechanism of how phytoalexin is primed by beneficial microorganisms against broad-spectrum pathogens remains elusive. This study showed that Bacillus cereus AR156 could trigger ISR against broad-spectrum disease. RNA-sequencing and camalexin content assays showed that AR156-triggered ISR can prime the accumulation of camalexin synthesis and secretion-related genes. Moreover, it was found that AR156-triggered ISR elevates camalexin accumulation by increasing the expression of camalexin synthesis genes upon pathogen infection. We observed that the priming of camalexin accumulation by AR156 was abolished in cyp71a13 and pad3 mutants. Further investigations reveal that in the wrky33 mutant, the ability of AR156 to prime camalexin accumulation is abolished, and the mediated ISR against the three pathogens is significantly compromised. Furthermore, PEN3 and PDR12, acting as camalexin transporters, participate in AR156-induced ISR against broad-spectrum pathogens differently. In addition, salicylic acid and JA/ET signalling pathways participate in AR156-primed camalexin synthesis to resist pathogens in different forms depending on the pathogen. In summary, B. cereus AR156 triggers ISR against Botrytis cinerea, Pst DC3000 and Phytophthora capsici by priming camalexin synthesis. Our study provides deeper insights into the significant role of camalexin for AR156-induced ISR against broad-spectrum pathogens.
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Affiliation(s)
- Zi-Jie Li
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Shu-Ya Tang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Hong-Shan Gao
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Jin-Yao Ren
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Pei-Ling Xu
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Wen-Pan Dong
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Ying Zheng
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Wei Yang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huai'an, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huai'an, China
| | - Yi-Yang Yu
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Jian-Hua Guo
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
| | - Yu-Ming Luo
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huai'an, China
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huai'an, China
| | - Dong-Dong Niu
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huai'an, China
| | - Chun-Hao Jiang
- Department of Plant Pathology, Nanjing Agricultural University, Nanjing, China
- Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing, China
- Key Laboratory of Integrated Management of Crop Disease and Pests, Nanjing Agricultural University, Nanjing, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huai'an, China
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Song W, Gao X, Li H, Li S, Wang J, Wang X, Wang T, Ye Y, Hu P, Li X, Fu B. Transcriptome analysis and physiological changes in the leaves of two Bromus inermis L. genotypes in response to salt stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1313113. [PMID: 38162311 PMCID: PMC10755925 DOI: 10.3389/fpls.2023.1313113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/24/2023] [Indexed: 01/03/2024]
Abstract
Soil salinity is a major factor threatening the production of crops around the world. Smooth bromegrass (Bromus inermis L.) is a high-quality grass in northern and northwestern China. Currently, selecting and utilizing salt-tolerant genotypes is an important way to mitigate the detrimental effects of salinity on crop productivity. In our research, salt-tolerant and salt-sensitive varieties were selected from 57 accessions based on a comprehensive evaluation of 22 relevant indexes, and their salt-tolerance physiological and molecular mechanisms were further analyzed. Results showed significant differences in salt tolerance between 57 genotypes, with Q25 and Q46 considered to be the most salt-tolerant and salt-sensitive accessions, respectively, compared to other varieties. Under saline conditions, the salt-tolerant genotype Q25 not only maintained significantly higher photosynthetic performance, leaf relative water content (RWC), and proline content but also exhibited obviously lower relative conductivity and malondialdehyde (MDA) content than the salt-sensitive Q46 (p < 0.05). The transcriptome sequencing indicated 15,128 differentially expressed genes (DEGs) in Q46, of which 7,885 were upregulated and 7,243 downregulated, and 12,658 DEGs in Q25, of which 6,059 were upregulated and 6,599 downregulated. The Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that the salt response differences between Q25 and Q46 were attributed to the variable expression of genes associated with plant hormone signal transduction and MAPK signaling pathways. Furthermore, a large number of candidate genes, related to salt tolerance, were detected, which involved transcription factors (zinc finger proteins) and accumulation of compatible osmolytes (glutathione S-transferases and pyrroline-5-carboxylate reductases), etc. This study offers an important view of the physiological and molecular regulatory mechanisms of salt tolerance in two smooth bromegrass genotypes and lays the foundation for further identification of key genes linked to salt tolerance.
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Affiliation(s)
- Wenxue Song
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Xueqin Gao
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia, China
| | - Huiping Li
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Shuxia Li
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia, China
| | - Jing Wang
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Xing Wang
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Tongrui Wang
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Yunong Ye
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Pengfei Hu
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Xiaohong Li
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
| | - Bingzhe Fu
- College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia, China
- Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Yinchuan, Ningxia, China
- Key Laboratory for Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Yinchuan, Ningxia, China
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Xu J, He J, Hu B, Hou N, Guo J, Wang C, Li X, Li Z, Zhai J, Zhang T, Ma C, Ma F, Guan Q. Global hypermethylation of the N6-methyladenosine RNA modification associated with apple heterografting. PLANT PHYSIOLOGY 2023; 193:2513-2537. [PMID: 37648253 PMCID: PMC10663141 DOI: 10.1093/plphys/kiad470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 07/20/2023] [Indexed: 09/01/2023]
Abstract
Grafting can facilitate better scion performance and is widely used in plants. Numerous studies have studied the involvement of mRNAs, small RNAs, and epigenetic regulations in the grafting process. However, it remains unclear whether the mRNA N6-methyladenosine (m6A) modification participates in the apple (Malus x domestica Borkh.) grafting process. Here, we decoded the landscape of m6A modification profiles in 'Golden delicious' (a cultivar, Gd) and Malus prunifolia 'Fupingqiuzi' (a unique rootstock with resistance to environmental stresses, Mp), as well as their heterografted and self-grafted plants. Interestingly, global hypermethylation of m6A occurred in both heterografted scion and rootstock compared with their self-grafting controls. Gene Ontology (GO) term enrichment analysis showed that grafting-induced differentially m6A-modified genes were mainly involved in RNA processing, epigenetic regulation, stress response, and development. Differentially m6A-modified genes harboring expression alterations were mainly involved in various stress responses and fatty acid metabolism. Furthermore, grafting-induced mobile mRNAs with m6A and gene expression alterations mainly participated in ABA synthesis and transport (e.g. carotenoid cleavage dioxygenase 1 [CCD1] and ATP-binding cassette G22 [ABCG22]) and abiotic and biotic stress responses, which might contribute to the better performance of heterografted plants. Additionally, the DNA methylome analysis also demonstrated the DNA methylation alterations during grafting. Downregulated expression of m6A methyltransferase gene MdMTA (ortholog of METTL3) in apples induced the global m6A hypomethylation and distinctly activated the expression level of DNA demethylase gene MdROS1 (REPRESSOR OF SILENCING 1) showing the possible association between m6A and 5mC methylation in apples. Our results reveal the m6A modification profiles in the apple grafting process and enhance our understanding of the m6A regulatory mechanism in plant biological processes.
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Affiliation(s)
- Jidi Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jieqiang He
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Bichun Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Nan Hou
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Junxing Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Caixia Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xuewei Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zhongxing Li
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jingjing Zhai
- State Key Laboratory of Crop Stress Biology for Arid Areas, Center of Bioinformatics, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Ting Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Center of Bioinformatics, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Chuang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, Center of Bioinformatics, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
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Ordaz NA, Nagalakshmi U, Boiteux LS, Atamian HS, Ullman DE, Dinesh-Kumar SP. The Sw-5b NLR Immune Receptor Induces Early Transcriptional Changes in Response to Thrips and Mechanical Modes of Inoculation of Tomato spotted wilt orthotospovirus. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2023; 36:705-715. [PMID: 37432156 DOI: 10.1094/mpmi-03-23-0032-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
The NLR (nucleotide-binding leucine-rich repeat) class immune receptor Sw-5b confers resistance to Tomato spotted wilt orthotospovirus (TSWV). Although Sw-5b is known to activate immunity upon recognition of the TSWV movement protein NSm, we know very little about the downstream events that lead to resistance. Here, we investigated the Sw-5b-mediated early transcriptomic changes that occur in response to mechanical and thrips-mediated inoculation of TSWV, using near-isogenic tomato lines CNPH-LAM 147 (Sw5b+/+) and Santa Clara (Sw-5b-/-). We observed earlier Sw-5b-mediated transcriptional changes in response to thrips-mediated inoculation compared with that in response to mechanical inoculation of TSWV. With thrips-mediated inoculation, differentially expressed genes (DEGs) were observed at 12, 24, and 72 h postinoculation (hpi). Whereas with mechanical inoculation, DEGs were observed only at 72 hpi. Although some DEGs were shared between the two methods of inoculation, many DEGs were specific to either thrips-mediated or mechanical inoculation of TSWV. In response to thrips-mediated inoculation, an NLR immune receptor, cysteine-rich receptor-like kinase, G-type lectin S-receptor-like kinases, the ethylene response factor 1, and the calmodulin-binding protein 60 were induced. Fatty acid desaturase 2-9, cell death genes, DCL2b, RIPK/PBL14-like, ERF017, and WRKY75 were differentially expressed in response to mechanical inoculation. Our findings reveal Sw-5b responses specific to the method of TSWV inoculation. Although TSWV is transmitted in nature primarily by the thrips, Sw-5b responses to thrips inoculation have not been previously studied. Therefore, the DEGs we have identified in response to thrips-mediated inoculation provide a new foundation for understanding the mechanistic roles of these genes in the Sw-5b-mediated resistance. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Norma A Ordaz
- Department of Plant Pathology, College of Agricultural and Environmental Sciences, University of California, Davis, CA 95616, U.S.A
| | - Ugrappa Nagalakshmi
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, U.S.A
| | - Leonardo S Boiteux
- National Center for Vegetable Crops Research (CNPH), Embrapa Hortaliças, Brasilia-DF, Brazil
| | - Hagop S Atamian
- Biological Sciences program, Schmid College of Science & Technology, Chapman University, Orange, CA 92866, U.S.A
| | - Diane E Ullman
- Department of Entomology and Nematology, College of Agricultural and Environmental Sciences, University of California, Davis, CA 95616, U.S.A
| | - Savithramma P Dinesh-Kumar
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, U.S.A
- The Genome Center, College of Biological Sciences, University of California, Davis, CA 95616, U.S.A
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Li J, Shen Y. A clathrin-related protein FaRRP1/SCD2 integrates ABA trafficking and signaling to regulate strawberry fruit ripening. J Biol Chem 2023; 299:105250. [PMID: 37714466 PMCID: PMC10582773 DOI: 10.1016/j.jbc.2023.105250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 09/17/2023] Open
Abstract
Abscisic acid (ABA) is a critical regulator for nonclimacteric fruit ripening such as in the model plant of strawberry (Fragaria × ananassa). Although FaRRP1 is proposed to participate in clathrin-mediated endocytosis of ABA, its action molecular mechanisms in ABA signaling are not fully understood. Here, using our isolated FaRRP1 (ripening-regulation protein) and candidate ABA receptor FaPYL2 and FaABAR from strawberry fruit, a series of silico and molecular interaction analyses demonstrate that they all bind to ABA, and FaRRP1 binds both FaPYL2 and FaABAR; by contrast, the binding affinity of FaRRP1 to FaPYL2 is relatively higher. Interestingly, the binding of FaRRP1 to FaPYL2 and FaABAR affects the perception affinity to ABA. Furthermore, exogenous ABA application and FaRRP1 transgenic analyses confirm that FaRRP1 participates in clathrin-mediated endocytosis and vesicle transport. Importantly, FaRRP1, FaPYL2, and FaABAR all trigger the initiation of strawberry fruit ripening at physiological and molecular levels. In conclusion, FaRRP1 not only binds to ABA but also affects the binding affinity of FaPYL2 and FaABAR to ABA, thus promoting strawberry fruit ripening. Our findings provide novel insights into the role of FaRRP1 in ABA trafficking and signaling, at least in strawberry, a model plant for nonclimacteric fruit ripening.
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Affiliation(s)
- Jiajing Li
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Yuanyue Shen
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China.
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Huang X, Zhang X, An N, Zhang M, Ma M, Yang Y, Jing L, Wang Y, Chen Z, Zhang P. Cryo-EM structure and molecular mechanism of abscisic acid transporter ABCG25. NATURE PLANTS 2023; 9:1709-1719. [PMID: 37666961 DOI: 10.1038/s41477-023-01509-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 08/02/2023] [Indexed: 09/06/2023]
Abstract
Abscisic acid (ABA) is one of the plant hormones that regulate various physiological processes, including stomatal closure, seed germination and development. ABA is synthesized mainly in vascular tissues and transported to distal sites to exert its physiological functions. Many ABA transporters have been identified, however, the molecular mechanism of ABA transport remains elusive. Here we report the cryogenic electron microscopy structure of the Arabidopsis thaliana adenosine triphosphate-binding cassette G subfamily ABA exporter ABCG25 (AtABCG25) in inward-facing apo conformation, ABA-bound pre-translocation conformation and outward-facing occluded conformation. Structural and biochemical analyses reveal that the ABA bound with ABCG25 adopts a similar configuration as that in ABA receptors and that the ABA-specific binding is dictated by residues from transmembrane helices TM1, TM2 and TM5a of each protomer at the transmembrane domain interface. Comparison of different conformational structures reveals conformational changes, especially those of transmembrane helices and residues constituting the substrate translocation pathway during the cross-membrane transport process. Based on the structural data, a 'gate-flipper' translocation model of ABCG25-mediated ABA cross-membrane transport is proposed. Our structural data on AtABCG25 provide new clues to the physiological study of ABA and shed light on its potential applications in plants and agriculture.
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Affiliation(s)
- Xiaowei Huang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xue Zhang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Ning An
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Minhua Zhang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Miaolian Ma
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Yang Yang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lianyan Jing
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Yongfei Wang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Zhenguo Chen
- The Fifth People's Hospital of Shanghai, Institutes of Biomedical Sciences, School of Basic Medical Sciences, Fudan University, Shanghai, China.
| | - Peng Zhang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.
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Ying W, Liao L, Wei H, Gao Y, Liu X, Sun L. Structural basis for abscisic acid efflux mediated by ABCG25 in Arabidopsis thaliana. NATURE PLANTS 2023; 9:1697-1708. [PMID: 37666962 PMCID: PMC10581904 DOI: 10.1038/s41477-023-01510-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 08/02/2023] [Indexed: 09/06/2023]
Abstract
Abscisic acid (ABA) is a phytohormone essential to the regulation of numerous aspects of plant growth and development. The cellular level of ABA is critical to its signalling and is determined by its rate of biosynthesis, catabolism and the rates of ABA transport. ABCG25 in Arabidopsis thaliana has been identified to be an ABA exporter and play roles in regulating stomatal closure and seed germination. However, its ABA transport mechanism remains unknown. Here we report the structures of ABCG25 under different states using cryo-electron microscopy single particle analysis: the apo state and ABA-bound state of the wild-type ABCG25 and the ATP-bound state of the ATPase catalytic mutant. ABCG25 forms a homodimer. ABA binds to a cone-shaped, cytosolic-facing cavity formed in the middle of the transmembrane domains. Key residues in ABA binding are identified and verified by a cell-based ABA transport assay. ATP binding leads to closing of the nucleotide-binding domains of opposing monomers and conformational transitions of the transmembrane domains. Together, these results provide insights into the substrate recognition and transport mechanisms of ABCG25 in Arabidopsis, and facilitate our understanding of the ABA transport and signalling pathway in plants.
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Affiliation(s)
- Wei Ying
- The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Lianghuan Liao
- The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hong Wei
- The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yongxiang Gao
- The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xin Liu
- The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
- Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China, Hefei, China.
| | - Linfeng Sun
- The First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
- Biomedical Sciences and Health Laboratory of Anhui Province, University of Science and Technology of China, Hefei, China.
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Russo G, Capitanio S, Trasoletti M, Morabito C, Korwin Krukowski P, Visentin I, Genre A, Schubert A, Cardinale F. Strigolactones promote the localization of the ABA exporter ABCG25 at the plasma membrane in root epidermal cells of Arabidopsis thaliana. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:5881-5895. [PMID: 37519212 DOI: 10.1093/jxb/erad298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 07/29/2023] [Indexed: 08/01/2023]
Abstract
The phytohormones strigolactones crosstalk with abscisic acid (ABA) in acclimation to osmotic stress, as ascertained in leaves. However, our knowledge about underground tissues is limited, and lacking in Arabidopsis: whether strigolactones affect ABA transport across plasma membranes has never been addressed. We evaluated the effect of strigolactones on the localization of ATP BINDING CASSETTE G25 (ABCG25), an ABA exporter in Arabidopsis thaliana. Wild-type, strigolactone-insensitive, and strigolactone-depleted seedlings expressing a green fluorescent protein:ABCG25 construct were treated with ABA or strigolactones, and green fluorescent protein was quantified by confocal microscopy in different subcellular compartments of epidermal root cells. We show that strigolactones promote the localization of an ABA transporter at the plasma membrane by enhancing its endosomal recycling. Genotypes altered in strigolactone synthesis or perception are not impaired in ABCG25 recycling promotion by ABA, which acts downstream or independent of strigolactones in this respect. Additionally, we confirm that osmotic stress decreases strigolactone synthesis in A. thaliana root cells, and that this decrease may support local ABA retention under low water availability by allowing ABCG25 internalization. Thus, we propose a new mechanism for ABA homeostasis regulation in the context of osmotic stress acclimation: the fine-tuning by strigolactones of ABCG25 localization in root cells.
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Affiliation(s)
- Giulia Russo
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Serena Capitanio
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
- DBIOS, University of Turin, Viale Mattioli 25, I-10125 Torino, Italy
| | - Marta Trasoletti
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Cristina Morabito
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Paolo Korwin Krukowski
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Ivan Visentin
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Andrea Genre
- DBIOS, University of Turin, Viale Mattioli 25, I-10125 Torino, Italy
| | - Andrea Schubert
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
| | - Francesca Cardinale
- PlantStressLab, DISAFA, University of Turin, Largo Braccini 2, I-10095 Grugliasco (TO), Italy
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Rodrigues M, Forestan C, Ravazzolo L, Hugueney P, Baltenweck R, Rasori A, Cardillo V, Carraro P, Malagoli M, Brizzolara S, Quaggiotti S, Porro D, Meggio F, Bonghi C, Battista F, Ruperti B. Metabolic and Molecular Rearrangements of Sauvignon Blanc ( Vitis vinifera L.) Berries in Response to Foliar Applications of Specific Dry Yeast. PLANTS (BASEL, SWITZERLAND) 2023; 12:3423. [PMID: 37836164 PMCID: PMC10574919 DOI: 10.3390/plants12193423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/18/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Dry yeast extracts (DYE) are applied to vineyards to improve aromatic and secondary metabolic compound content and wine quality; however, systematic information on the underpinning molecular mechanisms is lacking. This work aimed to unravel, through a systematic approach, the metabolic and molecular responses of Sauvignon Blanc berries to DYE treatments. To accomplish this, DYE spraying was performed in a commercial vineyard for two consecutive years. Berries were sampled at several time points after the treatment, and grapes were analyzed for sugars, acidity, free and bound aroma precursors, amino acids, and targeted and untargeted RNA-Seq transcriptional profiles. The results obtained indicated that the DYE treatment did not interfere with the technological ripening parameters of sugars and acidity. Some aroma precursors, including cys-3MH and GSH-3MH, responsible for the typical aromatic nuances of Sauvignon Blanc, were stimulated by the treatment during both vintages. The levels of amino acids and the global RNA-seq transcriptional profiles indicated that DYE spraying upregulated ROS homeostatic and thermotolerance genes, as well as ethylene and jasmonic acid biosynthetic genes, and activated abiotic and biotic stress responses. Overall, the data suggested that the DYE reduced berry oxidative stress through the regulation of specific subsets of metabolic and hormonal pathways.
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Affiliation(s)
- Marta Rodrigues
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Cristian Forestan
- Department of Agricultural and Food Sciences, University of Bologna, 40127 Bologna, Italy;
| | - Laura Ravazzolo
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Philippe Hugueney
- National Research Institute for Agriculture, Food and Environment (INRAE), SVQV UMR A1131, University of Strasbourg, 67081 Strasbourg, France; (P.H.); (R.B.)
| | - Raymonde Baltenweck
- National Research Institute for Agriculture, Food and Environment (INRAE), SVQV UMR A1131, University of Strasbourg, 67081 Strasbourg, France; (P.H.); (R.B.)
| | - Angela Rasori
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Valerio Cardillo
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Pietro Carraro
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Mario Malagoli
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Stefano Brizzolara
- Crop Science Research Center, Scuola Superiore Sant’Anna, 56127 Pisa, Italy;
| | - Silvia Quaggiotti
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
| | - Duilio Porro
- Technology Transfer Centre, Edmund Mach Foundation, Via E. Mach 1, 38010 San Michele all ‘Adige, Italy;
| | - Franco Meggio
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
- Interdepartmental Research Centre for Viticulture and Enology (CIRVE), University of Padova, Via XXVIII Aprile 14, Conegliano, 31015 Treviso, Italy
| | - Claudio Bonghi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
- Interdepartmental Research Centre for Viticulture and Enology (CIRVE), University of Padova, Via XXVIII Aprile 14, Conegliano, 31015 Treviso, Italy
| | | | - Benedetto Ruperti
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Padova, Italy; (M.R.); (L.R.); (A.R.); (V.C.); (P.C.); (M.M.); (S.Q.); (F.M.); (C.B.)
- Interdepartmental Research Centre for Viticulture and Enology (CIRVE), University of Padova, Via XXVIII Aprile 14, Conegliano, 31015 Treviso, Italy
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Tang H, Zhang R, Wang M, Xie X, Zhang L, Zhang X, Liu C, Sun B, Qin F, Yang X. QTL mapping for flowering time in a maize-teosinte population under well-watered and water-stressed conditions. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2023; 43:67. [PMID: 37601731 PMCID: PMC10435433 DOI: 10.1007/s11032-023-01413-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/06/2023] [Indexed: 08/22/2023]
Abstract
Maize grain yield can be greatly reduced when flowering time coincides with drought conditions, which delays silking and consequently increases the anthesis-silking interval. Although the genetic basis of delayed flowering time under water-stressed conditions has been elucidated in maize-maize populations, little is known in this regard about maize-teosinte populations. Here, 16 quantitative trait loci (QTL) for three flowering-time traits, namely days to anthesis, days to silk, and the anthesis-silking interval, were identified in a maize-teosinte introgression population under well-watered and water-stressed conditions; these QTL explained 3.98-32.61% of phenotypic variations. Six of these QTL were considered to be sensitive to drought stress, and the effect of any individual QTL was small, indicating the complex genetic nature of drought resistance in maize. To resolve which genes underlie the six QTL, 11 candidate genes were identified via colocalization analysis of known associations with flowering-time-related drought traits. Among the 11 candidate genes, five were found to be differentially expressed in response to drought stress or under selection during maize domestication, and thus represented the most likely candidates underlying the drought-sensitive QTL. The results lay a foundation for further studies of the genetic mechanisms of drought resistance and provide valuable information for improving drought resistance during maize breeding. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-023-01413-0.
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Affiliation(s)
- Huaijun Tang
- State Key Laboratory of Plant Environmental Resilience and National Maize Improvement Center of China, China Agricultural University, Beijing, 100193 China
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091 China
| | - Renyu Zhang
- State Key Laboratory of Plant Environmental Resilience and National Maize Improvement Center of China, China Agricultural University, Beijing, 100193 China
| | - Min Wang
- State Key Laboratory of Plant Environmental Resilience and National Maize Improvement Center of China, China Agricultural University, Beijing, 100193 China
| | - Xiaoqing Xie
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091 China
| | - Lei Zhang
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091 China
| | - Xuan Zhang
- State Key Laboratory of Plant Environmental Resilience and National Maize Improvement Center of China, China Agricultural University, Beijing, 100193 China
| | - Cheng Liu
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091 China
| | - Baocheng Sun
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, 830091 China
| | - Feng Qin
- State Key Laboratory of Plant Environmental Resilience and National Maize Improvement Center of China, China Agricultural University, Beijing, 100193 China
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193 China
| | - Xiaohong Yang
- State Key Laboratory of Plant Environmental Resilience and National Maize Improvement Center of China, China Agricultural University, Beijing, 100193 China
- Frontiers Science Center for Molecular Design Breeding, China Agricultural University, Beijing, 100193 China
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Mejia-Alvarado FS, Botero-Rozo D, Araque L, Bayona C, Herrera-Corzo M, Montoya C, Ayala-Díaz I, Romero HM. Molecular network of the oil palm root response to aluminum stress. BMC PLANT BIOLOGY 2023; 23:346. [PMID: 37391695 DOI: 10.1186/s12870-023-04354-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 06/19/2023] [Indexed: 07/02/2023]
Abstract
BACKGROUND The solubilization of aluminum ions (Al3+) that results from soil acidity (pH < 5.5) is a limiting factor in oil palm yield. Al can be uptaken by the plant roots affecting DNA replication and cell division and triggering root morphological alterations, nutrient and water deprivation. In different oil palm-producing countries, oil palm is planted in acidic soils, representing a challenge for achieving high productivity. Several studies have reported the morphological, physiological, and biochemical oil palm mechanisms in response to Al-stress. However, the molecular mechanisms are just partially understood. RESULTS Differential gene expression and network analysis of four contrasting oil palm genotypes (IRHO 7001, CTR 3-0-12, CR 10-0-2, and CD 19 - 12) exposed to Al-stress helped to identify a set of genes and modules involved in oil palm early response to the metal. Networks including the ABA-independent transcription factors DREB1F and NAC and the calcium sensor Calmodulin-like (CML) that could induce the expression of internal detoxifying enzymes GRXC1, PER15, ROMT, ZSS1, BBI, and HS1 against Al-stress were identified. Also, some gene networks pinpoint the role of secondary metabolites like polyphenols, sesquiterpenoids, and antimicrobial components in reducing oxidative stress in oil palm seedlings. STOP1 expression could be the first step of the induction of common Al-response genes as an external detoxification mechanism mediated by ABA-dependent pathways. CONCLUSIONS Twelve hub genes were validated in this study, supporting the reliability of the experimental design and network analysis. Differential expression analysis and systems biology approaches provide a better understanding of the molecular network mechanisms of the response to aluminum stress in oil palm roots. These findings settled a basis for further functional characterization of candidate genes associated with Al-stress in oil palm.
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Affiliation(s)
- Fernan Santiago Mejia-Alvarado
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - David Botero-Rozo
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - Leonardo Araque
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - Cristihian Bayona
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - Mariana Herrera-Corzo
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - Carmenza Montoya
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - Iván Ayala-Díaz
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia
| | - Hernán Mauricio Romero
- Colombian Oil Palm Research Center - Cenipalma, Oil Palm Biology, and Breeding Research Program, Bogotá, 11121, Colombia.
- Department of Biology, Universidad Nacional de Colombia, Bogotá, 11132, Colombia.
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Zhang J, Diao F, Hao B, Xu L, Jia B, Hou Y, Ding S, Guo W. Multiomics reveals Claroideoglomus etunicatum regulates plant hormone signal transduction, photosynthesis and La compartmentalization in maize to promote growth under La stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115128. [PMID: 37315361 DOI: 10.1016/j.ecoenv.2023.115128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 06/07/2023] [Accepted: 06/08/2023] [Indexed: 06/16/2023]
Abstract
Rare earth elements (REEs) have been widely used in traditional and high-tech fields, and high doses of REEs are considered a risk to the ecosystem. Although the influence of arbuscular mycorrhizal fungi (AMF) in promoting host resistance to heavy metal (HM) stress has been well documented, the molecular mechanism by which AMF symbiosis enhances plant tolerance to REEs is still unclear. A pot experiment was conducted to investigate the molecular mechanism by which the AMF Claroideoglomus etunicatum promotes maize (Zea mays) seedling tolerance to lanthanum (La) stress (100 mg·kg-1 La). C. etunicatum symbiosis significantly improved maize seedling growth, P and La uptake and photosynthesis. Transcriptome, proteome, and metabolome analyses performed alone and together revealed that differentially expressed genes (DEGs) related to auxin /indole-3-acetic acid (AUX/IAA) and the DEGs and differentially expressed proteins (DEPs) related to ATP-binding cassette (ABC) transporters, natural resistance-associated macrophage proteins (Nramp6), vacuoles and vesicles were upregulated. In contrast, photosynthesis-related DEGs and DEPs were downregulated, and 1-phosphatidyl-1D-myo-inositol 3-phosphate (PI(3)P) was more abundant under C. etunicatum symbiosis. C. etunicatum symbiosis can promote plant growth by increasing P uptake, regulating plant hormone signal transduction, photosynthesis and glycerophospholipid metabolism pathways and enhancing La transport and compartmentalization in vacuoles and vesicles. The results provide new insights into the promotion of plant REE tolerance by AMF symbiosis and the possibility of utilizing AMF-maize interactions in REE phytoremediation and recycling.
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Affiliation(s)
- Jingxia Zhang
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China; Inner Mongolia Key Laboratory of Environmental Chemistry, School of Chemistry and Environment, Inner Mongolia Normal University, Hohhot 010021, China
| | - Fengwei Diao
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Baihui Hao
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Lei Xu
- Service Support Center, Ecology and Environmental Department of Inner Mongolia Autonomous Region, Hohhot 010010, China
| | - Bingbing Jia
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Yazhou Hou
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Shengli Ding
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China
| | - Wei Guo
- Inner Mongolia Key Laboratory of Environmental Pollution Control and Waste Resource Recycle, Ministry of Education Collaborative Innovation Center for Grassland Ecological Security, Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021, China.
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Zhang H, Hu L, Du X, Shah AA, Ahmad B, Yang L, Mu Z. Response and Tolerance of Macleaya cordata to Excess Zinc Based on Transcriptome and Proteome Patterns. PLANTS (BASEL, SWITZERLAND) 2023; 12:2275. [PMID: 37375899 DOI: 10.3390/plants12122275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023]
Abstract
Macleaya cordata is a dominant plant of mine tailings and a zinc (Zn) accumulator with high Zn tolerance. In this study, M. cordata seedlings cultured in Hoagland solution were treated with 200 μmol·L-1 of Zn for 1 day or 7 days, and then, their leaves were taken for a comparative analysis of the transcriptomes and proteomes between the leaves of the control and Zn treatments. Differentially expressed genes included those that were iron (Fe)-deficiency-induced, such as vacuolar iron transporter VIT, ABC transporter ABCI17 and ferric reduction oxidase FRO. Those genes were significantly upregulated by Zn and could be responsible for Zn transport in the leaves of M. cordata. Differentially expressed proteins, such as chlorophyll a/b-binding proteins, ATP-dependent protease, and vacuolar-type ATPase located on the tonoplast, were significantly upregulated by Zn and, thus, could be important in chlorophyll biosynthesis and cytoplasm pH stabilization. Moreover, the changes in Zn accumulation, the production of hydrogen peroxide, and the numbers of mesophyll cells in the leaves of M. cordata were consistent with the expression of the genes and proteins. Thus, the proteins involved in the homeostasis of Zn and Fe are hypothesized to be the keys to the tolerance and accumulation of Zn in M. cordata. Such mechanisms in M. cordata can suggest novel approaches to genetically engineering and biofortifying crops.
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Affiliation(s)
- Hongxiao Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang 471000, China
| | - Linfeng Hu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Xinlong Du
- College of Agriculture, Henan University of Science and Technology, Luoyang 471000, China
| | - Assar Ali Shah
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Baseer Ahmad
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Liming Yang
- College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China
| | - Zhiying Mu
- College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
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46
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Zhang H, Hu L, Du X, Sun X, Wang T, Mu Z. Physiological and molecular response and tolerance of Macleaya cordata to lead toxicity. BMC Genomics 2023; 24:277. [PMID: 37226137 DOI: 10.1186/s12864-023-09378-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 05/14/2023] [Indexed: 05/26/2023] Open
Abstract
BACKGROUND Macleaya cordata is a traditional medicinal herb, and it has high tolerance and accumulation ability to heavy metals, which make it a good candidate species for studying phytoremediation. The objectives of this study were to investigate response and tolerance of M. cordata to lead (Pb) toxicity based on comparative analysis of transcriptome and proteome. RESULTS In this study, the seedlings of M. cordata cultured in Hoagland solution were treated with 100 µmol·L- 1 Pb for 1 day (Pb 1d) or 7 days (Pb 7d), subsequently leaves of M. cordata were taken for the determination of Pb accumulation and hydrogen peroxide production (H2O2), meanwhile a total number of 223 significantly differentially expressed genes (DEGs) and 296 differentially expressed proteins (DEPs) were screened between control and Pb treatments. The results showed leaves of M. cordata had a special mechanism to maintain Pb at an appropriate level. Firstly, some DEGs were iron (Fe) deficiency-induced transporters, for example, genes of vacuolar iron transporter and three ABC transporter I family numbers were upregulated by Pb, which can maintain Fe homeostasis in cytoplasm or chloroplast. In addition, five genes of calcium (Ca2+) binding proteins were downregulated in Pb 1d, which may regulate cytoplasmic Ca2+ concentration and H2O2 signaling pathway. On the other hand, the cysteine synthase upregulated, glutathione S-transferase downregulated and glutathione reductase downregulated in Pb 7d can cause reduced glutathione accumulation and decrease Pb detoxification in leaves. Furthermore, DEPs of eight chlorophyll a/b binding proteins, five ATPases and eight ribosomal proteins can play a pivotal role on chloroplast turnover and ATP metabolism. CONCLUSIONS Our results suggest that the proteins involved in Fe homeostasis and chloroplast turnover in mesophyll cells may play key roles in tolerance of M. cordata to Pb. This study offers some novel insights into Pb tolerance mechanism of plants, and the potential valuable for environmental remediation of this important medicinal plant.
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Affiliation(s)
- Hongxiao Zhang
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China.
| | - Linfeng Hu
- College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300222, China
| | - Xinlong Du
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China
| | - Xijing Sun
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China
| | - Ting Wang
- College of Agriculture, Henan University of Science and Technology, Luoyang, 471023, China
| | - Zhiying Mu
- College of Forestry and Biotechnology, Zhejiang Agriculture and Forestry University, Hangzhou, 311300, China.
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Singh A, Roychoudhury A. Abscisic acid in plants under abiotic stress: crosstalk with major phytohormones. PLANT CELL REPORTS 2023; 42:961-974. [PMID: 37079058 DOI: 10.1007/s00299-023-03013-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Abstract
KEY MESSAGE Extensive crosstalk exists among ABA and different phytohormones that modulate plant tolerance against different abiotic stress. Being sessile, plants are exposed to a wide range of abiotic stress (drought, heat, cold, salinity and metal toxicity) that exert unwarranted threat to plant life and drastically affect growth, development, metabolism, and yield of crops. To cope with such harsh conditions, plants have developed a wide range of protective phytohormones of which abscisic acid plays a pivotal role. It controls various physiological processes of plants such as leaf senescence, seed dormancy, stomatal closure, fruit ripening, and other stress-related functions. Under challenging situations, physiological responses of ABA manifested in the form of morphological, cytological, and anatomical alterations arise as a result of synergistic or antagonistic interaction with multiple phytohormones. This review provides new insight into ABA homeostasis and its perception and signaling crosstalk with other phytohormones at both molecular and physiological level under critical conditions including drought, salinity, heavy metal toxicity, and extreme temperature. The review also reveals the role of ABA in the regulation of various physiological processes via its positive or negative crosstalk with phytohormones, viz., gibberellin, melatonin, cytokinin, auxin, salicylic acid, jasmonic acid, ethylene, brassinosteroids, and strigolactone in response to alteration of environmental conditions. This review forms a basis for designing of plants that will have an enhanced tolerance capability against different abiotic stress.
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Affiliation(s)
- Ankur Singh
- Department of Biotechnology, St. Xavier's College (Autonomous), 30 Mother Teresa Sarani, Kolkata, 700016, West Bengal, India
| | - Aryadeep Roychoudhury
- Discipline of Life Sciences, School of Sciences, Indira Gandhi National Open University, Maidan Garhi, New Delhi, 110068, India.
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Singh S, Chaudhary C, Bharsakale RD, Gazal S, Verma L, Tarannum Z, Behere GT, Giri J, Germain H, Ghosh DK, Sharma AK, Chauhan H. PRpnp, a novel dual activity PNP family protein improves plant vigour and confers multiple stress tolerance in Citrus aurantifolia. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:726-741. [PMID: 36593511 PMCID: PMC10037160 DOI: 10.1111/pbi.13989] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/04/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Under field conditions, plants are often simultaneously exposed to several abiotic and biotic stresses resulting in significant reductions in growth and yield; thus, developing a multi-stress tolerant variety is imperative. Previously, we reported the neofunctionalization of a novel PNP family protein, Putranjiva roxburghii purine nucleoside phosphorylase (PRpnp) to trypsin inhibitor to cater to the needs of plant defence. However, to date, no study has revealed the potential role and mechanism of either member of this protein group in plant defence. Here, we overexpressed PRpnp in Citrus aurantifolia which showed nuclear-cytoplasmic localization, where it functions in maintaining the intracellular purine reservoir. Overexpression of PRpnp significantly enhanced tolerance to salt, oxidative stress, alkaline pH, drought and two pests, Papilio demoleus and Scirtothrips citri in transgenic plants. Global gene expression studies revealed that PRpnp overexpression up-regulated differentially expressed genes (DEGs) related to ABA- and JA-biosynthesis and signalling, plant defence, growth and development. LC-MS/MS analysis validated higher endogenous ABA and JA accumulation in transgenic plants. Taken together, our results suggest that PRpnp functions by enhancing the endogenous ABA and JA, which interact synergistically and it also inhibits trypsin proteases in the insect gut. Also, like other purine salvage genes, PRpnp also regulates CK metabolism and increases the levels of CK-free bases in transgenic Mexican lime. We also suggest that PRpnp can be used as a potential candidate to develop new varieties with improved plant vigour and enhanced multiple stress resistance.
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Affiliation(s)
- Sweta Singh
- Department of Biosciences and BioengineeringIndian Institute of Technology RoorkeeRoorkeeIndia
| | - Chanderkant Chaudhary
- Department of Biosciences and BioengineeringIndian Institute of Technology RoorkeeRoorkeeIndia
| | | | - Snehi Gazal
- Department of Chemistry, Biochemistry and PhysicsUniversité du Québec à Trois‐RivièresTrois‐RivièresQuebecCanada
| | - Lokesh Verma
- National Institute of Plant Genome ResearchNew DelhiIndia
| | - Zeba Tarannum
- Department of Biosciences and BioengineeringIndian Institute of Technology RoorkeeRoorkeeIndia
| | | | - Jitender Giri
- National Institute of Plant Genome ResearchNew DelhiIndia
| | - Hugo Germain
- Department of Chemistry, Biochemistry and PhysicsUniversité du Québec à Trois‐RivièresTrois‐RivièresQuebecCanada
| | | | - Ashwani K. Sharma
- Department of Biosciences and BioengineeringIndian Institute of Technology RoorkeeRoorkeeIndia
| | - Harsh Chauhan
- Department of Biosciences and BioengineeringIndian Institute of Technology RoorkeeRoorkeeIndia
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Pakuła K, Sequeiros-Borja C, Biała-Leonhard W, Pawela A, Banasiak J, Bailly A, Radom M, Geisler M, Brezovsky J, Jasiński M. Restriction of access to the central cavity is a major contributor to substrate selectivity in plant ABCG transporters. Cell Mol Life Sci 2023; 80:105. [PMID: 36952129 PMCID: PMC10036432 DOI: 10.1007/s00018-023-04751-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 02/22/2023] [Accepted: 03/06/2023] [Indexed: 03/24/2023]
Abstract
ABCG46 of the legume Medicago truncatula is an ABC-type transporter responsible for highly selective translocation of the phenylpropanoids, 4-coumarate, and liquiritigenin, over the plasma membrane. To investigate molecular determinants of the observed substrate selectivity, we applied a combination of phylogenetic and biochemical analyses, AlphaFold2 structure prediction, molecular dynamics simulations, and mutagenesis. We discovered an unusually narrow transient access path to the central cavity of MtABCG46 that constitutes an initial filter responsible for the selective translocation of phenylpropanoids through a lipid bilayer. Furthermore, we identified remote residue F562 as pivotal for maintaining the stability of this filter. The determination of individual amino acids that impact the selective transport of specialized metabolites may provide new opportunities associated with ABCGs being of interest, in many biological scenarios.
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Affiliation(s)
- Konrad Pakuła
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614, Poznan, Poland
| | - Carlos Sequeiros-Borja
- Laboratory of Biomolecular Interactions and Transport, Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland
- International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, 02-109, Warsaw, Poland
| | - Wanda Biała-Leonhard
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Aleksandra Pawela
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Joanna Banasiak
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Aurélien Bailly
- Department of Plant and Microbial Biology, University of Zurich, Zollikerstrasse 107, 8008, Zurich, Switzerland
| | - Marcin Radom
- Department of Structural Bioinformatics, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z.Noskowskiego12/14, 61-704, Poznan, Poland
- Institute of Computing Science, Poznan University of Technology, Piotrowo 2, 60-965, Poznan, Poland
| | - Markus Geisler
- Department of Biology, University of Fribourg, Chem. du Musée 10, 1700, Fribourg, Switzerland
| | - Jan Brezovsky
- Laboratory of Biomolecular Interactions and Transport, Department of Gene Expression, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland.
- International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, 02-109, Warsaw, Poland.
| | - Michał Jasiński
- Department of Plant Molecular Physiology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poznan, Poland.
- Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Dojazd 11, 60-632, Poznan, Poland.
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50
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Dopamine Inhibits Arabidopsis Growth through Increased Oxidative Stress and Auxin Activity. STRESSES 2023. [DOI: 10.3390/stresses3010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Like some bacterial species and all animals, plants synthesize dopamine and react to its exogenous applications. Despite dopamine’s widespread presence and activity in plants, its role in plant physiology is still poorly understood. Using targeted experimentation informed by the transcriptomic response to dopamine exposure, we identify three major effects of dopamine. First, we show that dopamine causes hypersensitivity to auxin indole-3-acetic acid by enhancing auxin activity. Second, we show that dopamine increases oxidative stress, which can be mitigated with glutathione. Third, we find that dopamine downregulates iron uptake mechanisms, leading to a decreased iron content—a response possibly aimed at reducing DA-induced oxidative stress. Finally, we show that dopamine-induced auxin sensitivity is downstream of glutathione biosynthesis, indicating that the auxin response is likely a consequence of DA-induced oxidative stress. Collectively, our results show that exogenous dopamine increases oxidative stress, which inhibits growth both directly and indirectly by promoting glutathione-biosynthesis-dependent auxin hypersensitivity.
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