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Wang H, Xu T, Li Y, Gao R, Tao X, Song J, Li C, Li Q. Comparative transcriptome analysis reveals the potential mechanism of GA 3-induced dormancy release in Suaeda glauca black seeds. FRONTIERS IN PLANT SCIENCE 2024; 15:1354141. [PMID: 38919815 PMCID: PMC11197467 DOI: 10.3389/fpls.2024.1354141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 05/22/2024] [Indexed: 06/27/2024]
Abstract
Suaeda glauca Bunge produces dimorphic seeds on the same plant, with brown seeds displaying non-dormant characteristics and black seeds exhibiting intermediate physiological dormancy traits. Previous studies have shown that black seeds have a very low germination rate under natural conditions, but exogenous GA3 effectively enhanced the germination rate of black seeds. However, the physiological and molecular mechanisms underlying the effects of GA3 on S. glauca black seeds are still unclear. In this study, transcriptomic profiles of seeds at different germination stages with and without GA3 treatment were analyzed and compared, and the TTF, H2O2, O2 -, starch, and soluble sugar contents of the corresponding seed samples were determined. The results indicated that exogenous GA3 treatment significantly increased seed vigor, H2O2, and O2 - contents but decreased starch and soluble sugar contents of S. glauca black seeds during seed dormancy release. RNA-seq results showed that a total of 1136 DEGs were identified in three comparison groups and were involved mainly in plant hormone signal transduction, diterpenoid biosynthesis, flavonoid biosynthesis, phenylpropanoid biosynthesis, and carbohydrate metabolism pathway. Among them, the DEGs related to diterpenoid biosynthesis (SgGA3ox1, SgKAO and SgGA2ox8) and ABA signal transduction (SgPP2Cs) could play important roles during seed dormancy release. Most genes involved in phenylpropanoid biosynthesis were activated under GA3 treatment conditions, especially many SgPER genes encoding peroxidase. In addition, exogenous GA3 treatment also significantly enhanced the expression of genes involved in flavonoid synthesis, which might be beneficial to seed dormancy release. In accordance with the decline in starch and soluble sugar contents, 15 genes involved in carbohydrate metabolism were significantly up-regulated during GA3-induced dormancy release, such as SgBAM, SgHXK2, and SgAGLU, etc. In a word, exogenous GA3 effectively increased the germination rate and seed vigor of S. glauca black seeds by mediating the metabolic process or signal transduction of plant hormones, phenylpropanoid and flavonoid biosynthesis, and carbohydrate metabolism processes. Our results provide novel insights into the transcriptional regulation mechanism of exogenous GA3 on the dormancy release of S. glauca black seeds. The candidate genes identified in this study may be further studied and used to enrich our knowledge of seed dormancy and germination.
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Affiliation(s)
- Hongfei Wang
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Tianjiao Xu
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Yongjia Li
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Rui Gao
- Dandong Forestry and Grassland Development Service Center, Dandong, China
| | - Xuelin Tao
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Jieqiong Song
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Changping Li
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
| | - Qiuli Li
- The Key Laboratory of Plant Biotechnology of Liaoning Province, School of Life Science, Liaoning Normal University, Dalian, China
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Punia A, Kumari M, Chouhan M, Saini V, Joshi R, Kumar A, Kumar R. Proteomic and metabolomic insights into seed germination of Ferula assa-foetida. J Proteomics 2024; 300:105176. [PMID: 38604334 DOI: 10.1016/j.jprot.2024.105176] [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: 12/14/2023] [Revised: 03/01/2024] [Accepted: 04/08/2024] [Indexed: 04/13/2024]
Abstract
Cold stratification is known to affect the speed of seed germination; however, its regulation at the molecular level in Ferula assa-foetida remains ambiguous. Here, we used cold stratification (4 °C in the dark) to induce germination in F. assa-foetida and adopted a proteomic and metabolomic approach to understand the molecular mechanism of germination. Compared to the control, we identified 209 non-redundant proteins and 96 metabolites in germinated F. assa-foetida seed. Results highlight the common and unique regulatory mechanisms like signaling cascade, reactivation of energy metabolism, activation of ROS scavenging system, DNA repair, gene expression cascade, cytoskeleton, and cell wall modulation in F. assa-foetida germination. A protein-protein interaction network identifies 18 hub protein species central to the interactome and could be a key player in F. assa-foetida germination. Further, the predominant metabolic pathways like glucosinolate biosynthesis, arginine and proline metabolism, cysteine and methionine metabolism, aminoacyl-tRNA biosynthesis, and carotenoid biosynthesis in germinating seed may indicate the regulation of carbon and nitrogen metabolism is prime essential to maintain the physiology of germinating seedlings. The findings of this study provide a better understanding of cold stratification-induced seed germination, which might be utilized for genetic modification and traditional breeding of Ferula assa-foetida. SIGNIFICANCE: Seed germination is the fundamental checkpoint for plant growth and development, which has ecological significance. Ferula assa-foetida L., commonly known as "asafoetida," is a medicinal and food crop with huge therapeutic potential. To date, our understanding of F. assa-foetida seed germination is rudimentary. Therefore, studying the molecular mechanism that governs dormancy decay and the onset of germination in F. assa-foetida is essential for understanding the basic principle of seed germination, which could offer to improve genetic modification and traditional breeding.
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Affiliation(s)
- Ashwani Punia
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manglesh Kumari
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Monika Chouhan
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vishal Saini
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Robin Joshi
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ashok Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India
| | - Rajiv Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Di X, Wang Q, Zhang F, Feng H, Wang X, Cai C. Advances in the Modulation of Potato Tuber Dormancy and Sprouting. Int J Mol Sci 2024; 25:5078. [PMID: 38791120 PMCID: PMC11121589 DOI: 10.3390/ijms25105078] [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: 04/03/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
The post-harvest phase of potato tuber dormancy and sprouting are essential in determining the economic value. The intricate transition from dormancy to active growth is influenced by multiple factors, including environmental factors, carbohydrate metabolism, and hormonal regulation. Well-established environmental factors such as temperature, humidity, and light play pivotal roles in these processes. However, recent research has expanded our understanding to encompass other novel influences such as magnetic fields, cold plasma treatment, and UV-C irradiation. Hormones like abscisic acid (ABA), gibberellic acid (GA), cytokinins (CK), auxin, and ethylene (ETH) act as crucial messengers, while brassinosteroids (BRs) have emerged as key modulators of potato tuber sprouting. In addition, jasmonates (JAs), strigolactones (SLs), and salicylic acid (SA) also regulate potato dormancy and sprouting. This review article delves into the intricate study of potato dormancy and sprouting, emphasizing the impact of environmental conditions, carbohydrate metabolism, and hormonal regulation. It explores how various environmental factors affect dormancy and sprouting processes. Additionally, it highlights the role of carbohydrates in potato tuber sprouting and the intricate hormonal interplay, particularly the role of BRs. This review underscores the complexity of these interactions and their importance in optimizing potato dormancy and sprouting for agricultural practices.
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Affiliation(s)
- Xueni Di
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Feng Zhang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Haojie Feng
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
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Liu Y, Zhou Y, Cheng F, Zhou R, Yang Y, Wang Y, Zhang X, Soltis DE, Xiao N, Quan Z, Li J. Chromosome-level genome of putative autohexaploid Actinidia deliciosa provides insights into polyploidisation and evolution. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:73-89. [PMID: 38112590 DOI: 10.1111/tpj.16592] [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: 07/27/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 12/21/2023]
Abstract
Actinidia ('Mihoutao' in Chinese) includes species with complex ploidy, among which diploid Actinidia chinensis and hexaploid Actinidia deliciosa are economically and nutritionally important fruit crops. Actinidia deliciosa has been proposed to be an autohexaploid (2n = 174) with diploid A. chinensis (2n = 58) as the putative parent. A CCS-based assembly anchored to a high-resolution linkage map provided a chromosome-resolved genome for hexaploid A. deliciosa yielded a 3.91-Gb assembly of 174 pseudochromosomes comprising 29 homologous groups with 6 members each, which contain 39 854 genes with an average of 4.57 alleles per gene. Here we provide evidence that much of the hexaploid genome matches diploid A. chinensis; 95.5% of homologous gene pairs exhibited >90% similarity. However, intragenome and intergenome comparisons of synteny indicate chromosomal changes. Our data, therefore, indicate that if A. deliciosa is an autoploid, chromosomal rearrangement occurred following autohexaploidy. A highly diversified pattern of gene expression and a history of rapid population expansion after polyploidisation likely facilitated the adaptation and niche differentiation of A. deliciosa in nature. The allele-defined hexaploid genome of A. deliciosa provides new genomic resources to accelerate crop improvement and to understand polyploid genome evolution.
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Affiliation(s)
- Yongbo Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Beijing, 100012, China
| | - Yi Zhou
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Beijing, 100012, China
| | - Feng Cheng
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Sino-Dutch Joint Laboratory of Horticultural Genomics, Beijing, 10008, China
| | - Renchao Zhou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yinqing Yang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Sino-Dutch Joint Laboratory of Horticultural Genomics, Beijing, 10008, China
| | - Yanchang Wang
- Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, Hubei, China
| | - Xingtan Zhang
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Douglas E Soltis
- Florida Museum of Natural History, University of Florida, Gainesville, Florida, USA
| | - Nengwen Xiao
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Beijing, 100012, China
| | - Zhanjun Quan
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Beijing, 100012, China
| | - Junsheng Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, 8 Dayangfang, Beijing, 100012, China
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Piskurewicz U, Glauser G, Lopez-Molina L. Endospermic brassinosteroids moderate seed thermoinhibition responses in Arabidopsis thaliana. THE NEW PHYTOLOGIST 2024; 241:2320-2325. [PMID: 38130053 DOI: 10.1111/nph.19491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Affiliation(s)
- Urszula Piskurewicz
- Department of Plant Sciences, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva, Switzerland
| | - Gaëtan Glauser
- Neuchâtel Platform of Analytical Chemistry, Université de Neuchâtel, Avenue de Bellevaux 51, 2000, Neuchâtel, Switzerland
| | - Luis Lopez-Molina
- Department of Plant Sciences, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva, Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3), University of Geneva, 1, rue Michel-Servet, 1211, Geneva, Switzerland
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Wang X, Wei J, Wu J, Shi B, Wang P, Alabd A, Wang D, Gao Y, Ni J, Bai S, Teng Y. Transcription factors BZR2/MYC2 modulate brassinosteroid and jasmonic acid crosstalk during pear dormancy. PLANT PHYSIOLOGY 2024; 194:1794-1814. [PMID: 38036294 DOI: 10.1093/plphys/kiad633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/27/2023] [Accepted: 10/29/2023] [Indexed: 12/02/2023]
Abstract
Bud dormancy is an important physiological process during winter. Its release requires a certain period of chilling. In pear (Pyrus pyrifolia), the abscisic acid (ABA)-induced expression of DORMANCY-ASSOCIATED MADS-box (DAM) genes represses bud break, whereas exogenous gibberellin (GA) promotes dormancy release. However, with the exception of ABA and GA, the regulatory effects of phytohormones on dormancy remain largely uncharacterized. In this study, we confirmed brassinosteroids (BRs) and jasmonic acid (JA) contribute to pear bud dormancy release. If chilling accumulation is insufficient, both 24-epibrassinolide (EBR) and methyl jasmonic acid (MeJA) can promote pear bud break, implying that they positively regulate dormancy release. BRASSINAZOLE RESISTANT 2 (BZR2), which is a BR-responsive transcription factor, inhibited PpyDAM3 expression and accelerated pear bud break. The transient overexpression of PpyBZR2 increased endogenous GA, JA, and JA-Ile levels. In addition, the direct interaction between PpyBZR2 and MYELOCYTOMATOSIS 2 (PpyMYC2) enhanced the PpyMYC2-mediated activation of Gibberellin 20-oxidase genes PpyGA20OX1L1 and PpyGA20OX2L2 transcription, thereby increasing GA3 contents and accelerating pear bud dormancy release. Interestingly, treatment with 5 μm MeJA increased the bud break rate, while also enhancing PpyMYC2-activated PpyGA20OX expression and increasing GA3,4 contents. The 100 μm MeJA treatment decreased the PpyMYC2-mediated activation of the PpyGA20OX1L1 and PpyGA20OX2L2 promoters and suppressed the inhibitory effect of PpyBZR2 on PpyDAM3 transcription, ultimately inhibiting pear bud break. In summary, our data provide insights into the crosstalk between the BR and JA signaling pathways that regulate the BZR2/MYC2-mediated pathway in the pear dormancy release process.
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Affiliation(s)
- Xuxu Wang
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Jia Wei
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Jiahao Wu
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Baojing Shi
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Peihui Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Ahmed Alabd
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
- Department of Pomology, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
| | - Duanni Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Yuhao Gao
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Junbei Ni
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Songling Bai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
| | - Yuanwen Teng
- Hainan Institute of Zhejiang University, Sanya, Hainan 572000, PR China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
- Zhejiang Provincial Key Laboratory of Integrative Biology of Horticultural Plants, Hangzhou 310058, Zhejiang, PR China
- The Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture of China, Hangzhou 310058, Zhejiang, PR China
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Zeng F, Zheng C, Ge W, Gao Y, Pan X, Ye X, Wu X, Sun Y. Regulatory function of the endogenous hormone in the germination process of quinoa seeds. FRONTIERS IN PLANT SCIENCE 2024; 14:1322986. [PMID: 38259945 PMCID: PMC10801742 DOI: 10.3389/fpls.2023.1322986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024]
Abstract
The economic and health significance of quinoa is steadily growing on a global scale. Nevertheless, the primary obstacle to achieving high yields in quinoa cultivation is pre-harvest sprouting (PHS), which is intricately linked to seed dormancy. However, there exists a dearth of research concerning the regulatory mechanisms governing PHS. The regulation of seed germination by various plant hormones has been extensively studied. Consequently, understanding the mechanisms underlying the role of endogenous hormones in the germination process of quinoa seeds and developing strategies to mitigate PHS in quinoa cultivation are of significant research importance. This study employed the HPLC-ESI-MS/MS internal standard and ELISA method to quantify 8 endogenous hormones. The investigation of gene expression changes before and after germination was conducted using RNA-seq analysis, leading to the discovery of 280 differentially expressed genes associated with the regulatory pathway of endogenous hormones. Additionally, a correlation analysis of 99 genes with significant differences identified 14 potential genes that may act as crucial "transportation hubs" in hormonal interactions. Through the performance of an analysis on the modifications in hormone composition and the expression of associated regulatory genes, we posit a prediction that implies the presence of a negative feedback regulatory mechanism of endogenous hormones during the germination of quinoa seeds. This mechanism is potentially influenced by the unique structure of quinoa seeds. To shed light on the involvement of endogenous hormones in the process of quinoa seed germination, we have established a regulatory network. This study aims to offer innovative perspectives on the breeding of quinoa varieties that exhibit resistance to PHS, as well as strategies for preventing PHS.
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Affiliation(s)
| | | | | | | | | | | | - Xiaoyong Wu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering and Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Yanxia Sun
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering and Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
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8
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Muhammad D, Alameldin HF, Oh S, Montgomery BL, Warpeha KM. Arogenate dehydratases: unique roles in light-directed development during the seed-to-seedling transition in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2023; 14:1220732. [PMID: 37600200 PMCID: PMC10433759 DOI: 10.3389/fpls.2023.1220732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/11/2023] [Indexed: 08/22/2023]
Abstract
The seed-to-seedling transition is impacted by changes in nutrient availability and light profiles, but is still poorly understood. Phenylalanine affects early seedling development; thus, the roles of arogenate dehydratases (ADTs), which catalyze phenylalanine formation, were studied in germination and during the seed-to-seedling transition by exploring the impact of light conditions and specific hormone responses in adt mutants of Arabidopsis thaliana. ADT gene expression was assessed in distinct tissues and for light-quality dependence in seedlings for each of the six-member ADT gene family. Mutant adt seedlings were evaluated relative to wild type for germination, photomorphogenesis (blue, red, far red, white light, and dark conditions), anthocyanin accumulation, and plastid development-related phenotypes. ADT proteins are expressed in a light- and tissue-specific manner in transgenic seedlings. Among the analyzed adt mutants, adt3, adt5, and adt6 exhibit significant defects in germination, hypocotyl elongation, and root development responses during the seed-to-seedling transition. Interestingly, adt5 exhibits a light-dependent disruption in plastid development, similar to a phyA mutant. These data indicate interactions between photoreceptors, hormones, and regulation of phenylalanine pools in the process of seedling establishment. ADT5 and ADT6 may play important roles in coordinating hormone and light signals for normal early seedling development.
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Affiliation(s)
- DurreShahwar Muhammad
- Department of Biological Science, University of Illinois at Chicago, Chicago, IL, United States
| | - Hussien F. Alameldin
- MSU-DOE Plant Research Lab, Plant Biology Laboratories, East Lansing, MI, United States
- Agricultural Genetic Engineering Research Institute (AGERI), Agriculture Research Center (ARC), Giza, Egypt
| | - Sookyung Oh
- MSU-DOE Plant Research Lab, Plant Biology Laboratories, East Lansing, MI, United States
| | - Beronda L. Montgomery
- MSU-DOE Plant Research Lab, Plant Biology Laboratories, East Lansing, MI, United States
- Cell and Molecular Biology Program, Michigan State University, East Lansing, MI, United States
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, United States
- Department of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, United States
- Department of Biology, Grinnell College, Grinnell, IA, United States
| | - Katherine M. Warpeha
- Department of Biological Science, University of Illinois at Chicago, Chicago, IL, United States
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9
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Zhang Y, Liu P, Zou C, Chen Z, Yuan G, Gao S, Pan G, Shen Y, Ma L. Comprehensive analysis of transcriptional data on seed germination of two maize inbred lines under low-temperature conditions. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107874. [PMID: 37429215 DOI: 10.1016/j.plaphy.2023.107874] [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: 02/23/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/12/2023]
Abstract
Seed germination directly affect maize yield and grain quality. Low-temperature reduces maize yield by affecting seed germination and seedling growth. However, the molecular mechanism of maize seed germination under low-temperature remains unclear. In this study, the transcriptome data of two maize inbred lines SCL127 (chilling-sensitive) and SCL326 (chilling-tolerant) were analyzed at five time points (0 H, 4 H, 12 H, 24 H, and 48 H) under low-temperature conditions. Through the comparison of SCL127-0 H-vs-SCL326-0 H (Group I), SCL127-4 H-vs-SCL326-4 H (Group Ⅱ), SCL127-12 H-vs-SCL326-12 H (Group Ⅲ), SCL127-24 H-vs-SCL326-24 H (Group Ⅳ), and SCL127-48 H-vs SCL326-48 H (Group Ⅴ), a total of 8,526 differentially expressed genes (DEGs) were obtained. Weighted correlation network analysis revealed that Zm00001d010445 was the hub gene involved in seed germination under low-temperature conditions. Zm00001d010445-based association analysis showed that Hap Ⅱ (G) was the excellent haplotype for seed germination under low-temperature conditions. These findings provide a new perspective for the study of the genetic architecture of maize tolerance to low-temperature and contribute to the cultivation of maize varieties with low-temperature tolerance.
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Affiliation(s)
- Yinchao Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, China
| | - Peng Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Chaoying Zou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Zhong Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guangsheng Yuan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shibin Gao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guangtang Pan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yaou Shen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Langlang Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Maize Research Institute, Sichuan Agricultural University, Chengdu, 611130, China.
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10
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Sertse D, You FM, Klymiuk V, Haile JK, N'Diaye A, Pozniak CJ, Cloutier S, Kagale S. Historical Selection, Adaptation Signatures, and Ambiguity of Introgressions in Wheat. Int J Mol Sci 2023; 24:ijms24098390. [PMID: 37176097 PMCID: PMC10179502 DOI: 10.3390/ijms24098390] [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: 04/08/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/15/2023] Open
Abstract
Wheat was one of the crops domesticated in the Fertile Crescent region approximately 10,000 years ago. Despite undergoing recent polyploidization, hull-to-free-thresh transition events, and domestication bottlenecks, wheat is now grown in over 130 countries and accounts for a quarter of the world's cereal production. The main reason for its widespread success is its broad genetic diversity that allows it to thrive in different environments. To trace historical selection and hybridization signatures, genome scans were performed on two datasets: approximately 113K SNPs from 921 predominantly bread wheat accessions and approximately 110K SNPs from about 400 wheat accessions representing all ploidy levels. To identify environmental factors associated with the loci, a genome-environment association (GEA) was also performed. The genome scans on both datasets identified a highly differentiated region on chromosome 4A where accessions in the first dataset were dichotomized into a group (n = 691), comprising nearly all cultivars, wild emmer, and most landraces, and a second group (n = 230), dominated by landraces and spelt accessions. The grouping of cultivars is likely linked to their potential ancestor, bread wheat cv. Norin-10. The 4A region harbored important genes involved in adaptations to environmental conditions. The GEA detected loci associated with latitude and temperature. The genetic signatures detected in this study provide insight into the historical selection and hybridization events in the wheat genome that shaped its current genetic structure and facilitated its success in a wide spectrum of environmental conditions. The genome scans and GEA approaches applied in this study can help in screening the germplasm housed in gene banks for breeding, and for conservation purposes.
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Affiliation(s)
- Demissew Sertse
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, SK S7N 0W9, Canada
| | - Frank M You
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Valentyna Klymiuk
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Jemanesh K Haile
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Amidou N'Diaye
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Curtis J Pozniak
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Sylvie Cloutier
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada
| | - Sateesh Kagale
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, SK S7N 0W9, Canada
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11
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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: 7] [Impact Index Per Article: 7.0] [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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12
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Zhan C, Zhu P, Chen Y, Chen X, Liu K, Chen S, Hu J, He Y, Xie T, Luo S, Yang Z, Chen S, Tang H, Zhang H, Cheng J. Identification of a key locus, qNL3.1, associated with seed germination under salt stress via a genome-wide association study in rice. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:58. [PMID: 36912929 PMCID: PMC10011300 DOI: 10.1007/s00122-023-04252-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 12/07/2022] [Indexed: 06/18/2023]
Abstract
Two causal OsTTL and OsSAPK1 genes of the key locus qNL3.1 significantly associated with seed germination under salt stress were identified via a genome-wide association study, which could improve rice seed germination under salt stress. Rice is a salt-sensitive crop, and its seed germination determines subsequent seedling establishment and yields. In this study, 168 accessions were investigated for the genetic control of seed germination under salt stress based on the germination rate (GR), germination index (GI), time at which 50% germination was achieved (T50) and mean level (ML). Extensive natural variation in seed germination was observed among accessions under salt stress. Correlation analysis showed significantly positive correlations among GR, GI and ML and a negative correlation with T50 during seed germination under salt stress. Forty-nine loci significantly associated with seed germination under salt stress were identified, and seven of these were identified in both years. By comparison, 16 loci were colocated with the previous QTLs, and the remaining 33 loci might be novel. qNL3.1, colocated with qLTG-3, was simultaneously identified with the four indices in two years and might be a key locus for seed germination under salt stress. Analysis of candidate genes showed that two genes, the similar to transthyretin-like protein OsTTL and the serine/threonine protein kinase OsSAPK1, were the causal genes of qNL3.1. Germination tests indicated that both Osttl and Ossapk1 mutants significantly reduced seed germination under salt stress compared to the wild type. Haplotype analysis showed that Hap.1 of OsTTL and Hap.1 of OsSAPK1 genes were excellent alleles, and their combination resulted in high seed germination under salt stress. Eight accessions with elite performance of seed germination under salt stress were identified, which could improve rice seed germination under salt stress.
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Affiliation(s)
- Chengfang Zhan
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
- State Key Laboratory of Rice Biology & Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou, 310058, China
| | - Peiwen Zhu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yongji Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Xinyi Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Kexin Liu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Shanshan Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jiaxiao Hu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ying He
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Ting Xie
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Shasha Luo
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zeyuan Yang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Sunlu Chen
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Haijuan Tang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Hongsheng Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China.
| | - Jinping Cheng
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Jiangsu Collaborative Innovation Center for Modern Crop Production, Hainan Yazhou Bay Seed Lab, Jiangsu Province Engineering Research Center of Seed Industry Science and Technology, Nanjing Agricultural University, Nanjing, China.
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13
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Pan C, Yao L, Yu L, Qiao Z, Tang M, Wei F, Huang X, Zhou Y. Transcriptome and proteome analyses reveal the potential mechanism of seed dormancy release in Amomum tsaoko during warm stratification. BMC Genomics 2023; 24:99. [PMID: 36864423 PMCID: PMC9983222 DOI: 10.1186/s12864-023-09202-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND In Amomum tsaoko breeding, the low germination rate is the major limitation for their large-scale reproduction. We found that warm stratification was an effective treatment to break the seed dormancy of A. tsaoko prior to sowing and could be an important component of improving breeding programs. The mechanism of seed dormancy release during warm stratification remains unclear. Therefore, we studied the differences between transcripts and proteomes at 0, 30, 60, and 90 days of warm stratification, to identify some regulatory genes and functional proteins that may cause seed dormancy release in A. tsaoko and reveal their regulatory mechanism. RESULTS RNA-seq was performed for the seed dormancy release process, and the number of differentially expressed genes (DEGs) was 3196 in three dormancy release periods. Using TMT-labelling quantitative proteome analysis, a total of 1414 proteins were defined as differentially expressed proteins (DEPs). Functional enrichment analyses revealed that the DEGs and DEPs were mainly involved in signal transduction pathways (MAPK signaling, hormone) and metabolism processes (cell wall, storage and energy reserves), suggesting that these differentially expressed genes and proteins are somehow involved in response to seed dormancy release process, including MAPK, PYR/PYL, PP2C, GID1, GH3, ARF, AUX/IAA, TPS, SPS, and SS. In addition, transcription factors ARF, bHLH, bZIP, MYB, SBP, and WRKY showed differential expression during the warm stratification stage, which may relate to dormancy release. Noteworthy, XTH, EXP, HSP and ASPG proteins may be involved in a complex network to regulate cell division and differentiation, chilling response and the seed germination status in A. tsaoko seed during warm stratification. CONCLUSION Our transcriptomic and proteomic analysis highlighted specific genes and proteins that warrant further study in fully grasping the precise molecular mechanisms that control the seed dormancy and germination of A. tsaoko. A hypothetical model of the genetic regulatory network provides a theoretical basis for overcoming the physiological dormancy in A. tsaoko in the future.
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Affiliation(s)
- Chunliu Pan
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Lixiang Yao
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Liying Yu
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Zhu Qiao
- Guangxi Medicinal Resources Conservation and Genetic Improvement Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Meiqiong Tang
- Guangxi Medicinal Resources Conservation and Genetic Improvement Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Fan Wei
- Guangxi Medicinal Resources Conservation and Genetic Improvement Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Xueyan Huang
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China.
| | - Yunyi Zhou
- Guangxi TCM Resources General Survey and Data Collection Key Laboratory, Guangxi Botanical Garden of Medicinal Plants, Nanning, China.
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14
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Zhou W, Duan Y, Jiang X, Tan X, Li Q, Wang H, Zhang Y, Zhang M. Transcriptome and metabolome analyses reveal novel insights into the seed germination of Michelia chapensis, an endangered species in China. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 328:111568. [PMID: 36528126 DOI: 10.1016/j.plantsci.2022.111568] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/06/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Michelia chapensis Dandy, a well-known medicinal woody plant endemic to China, is endangered and seriously constricted by seed dormancy-induced low-regeneration in natural conditions. Cold stratification can effectively reduce seed dormancy and promote the seed germination of M. chapensis. However, the molecular events and systematic changes that occurred during seed germination in M. chapensis remain largely unknown. In this study, we carried out transcriptomic and metabolomic analyses to elucidate the potential molecular mechanisms underlying seed germination in M. chapensis under cold stratification. The results showed that the embryo cells became bigger and looser with increasing stratification time. Moreover, the endosperm appeared reduced due to the consumption of nutrients. Seventeen phytohormones were examined by the metabolome targeted for hormones. Compared with the ES (no stratification), the levels of indole-3-acetic acid (IAA) and gibberellin A3 (GA3) were increased in the MS (stratification for 45 days), while the abscisic acid (ABA) was downregulated in both MS and LS (stratification for 90 days). The transcriptome profiling identified 24975 differentially expressed genes (DEGs) in the seeds during germination. The seed germination of M. chapensis was mainly regulated by the biological pathways of plant hormone signal transduction, energy supply, secondary metabolite biosynthesis, photosynthesis-related metabolism, and transcriptional regulation. This study reveals the biological evidence of seed germination at the transcriptional level and provides a foundation for unraveling molecular mechanisms regulating the seed germination of M. chapensis.
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Affiliation(s)
- Wuxian Zhou
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China
| | - Yuanyuan Duan
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China
| | - Xiaogang Jiang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China
| | - Xuhui Tan
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China
| | - Qin Li
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China
| | - Hua Wang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China
| | - Yajuan Zhang
- Agricultural and Rural Bureau of Enshi Tujia and Miao Autonomous Prefecture, Enshi, China
| | - Meide Zhang
- Institute of Chinese Herbal Medicines, Hubei Academy of Agricultural Sciences, Enshi, China; Key Laboratory of Biology and Cultivation of Herb Medicine, Ministry of Agricultural and Rural Affairs, Enshi, China.
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15
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Fei R, Guan S, Duan S, Ge J, Sun T, Sun X. Elucidating Biological Functions of 9- cis-Epoxycarotenoid Dioxygenase Genes Involved in Seed Dormancy in Paeonia lactiflora. PLANTS (BASEL, SWITZERLAND) 2023; 12:710. [PMID: 36840058 PMCID: PMC9967950 DOI: 10.3390/plants12040710] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/19/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Abscisic acid (ABA) is a major phytohormone affecting seed dormancy and germination in plants. ABA is synthesized mainly through the C40 carotenoid pathway. In the ABA biosynthesis pathway, 9-cis-epoxycarotenoid dioxygenase (NCED) is a key rate-limiting enzyme that regulates the accumulation and content of ABA. However, the role of the NCED gene in perennial plants with complex seed dormancy remains largely unknown. Here, we cloned two differentially expressed paralogs of herbaceous peony NCED genes, named PlNCED1 and PlNCED2, and further identified their involvement in seed dormancy from perennial herbaceous peony experiencing complex double seed dormancy. The deduced PlNCED amino acid sequences had high sequence homology with NCED sequences from other plants and contained the typical conserved RPE65 domain of the NCED family. Phylogenetic analysis showed that PlNCED1 and PlNCED2 have a close relationship with PoNCED in Paeonia ostii and VvNCED6 in Vitis vinifera, respectively. A subcellular localization assay demonstrated that the PlNCED1 protein resided within the nucleus, while the PlNCED2 protein was located in the cytoplasm, indicating their different roles in the biosynthesis of ABA. Furthermore, the content of endogenous ABA in transgenic calluses showed that PlNCEDs were positively correlated with ABA content. Both PlNCED transgenic Arabidopsis lines and the functional complementation of Arabidopsis NCED mutants found that PlNCEDs promoted seed dormancy and delayed seed germination. These results reveal that PlNCEDs participate in the seed dormancy of herbaceous peony by regulating the accumulation of endogenous ABA.
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Affiliation(s)
- Riwen Fei
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Forest Tree Genetics Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Shixin Guan
- Key Laboratory of Forest Tree Genetics Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Siyang Duan
- Key Laboratory of Forest Tree Genetics Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Jiayuan Ge
- Key Laboratory of Forest Tree Genetics Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Tianyi Sun
- Key Laboratory of Forest Tree Genetics Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaomei Sun
- Key Laboratory of Forest Tree Genetics Breeding and Cultivation of Liaoning Province, College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
- College of Forestry, Shenyang Agricultural University, Shenyang 110866, China
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16
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Zhu Q, Feng Y, Xue J, Chen P, Zhang A, Yu Y. Advances in Receptor-like Protein Kinases in Balancing Plant Growth and Stress Responses. PLANTS (BASEL, SWITZERLAND) 2023; 12:427. [PMID: 36771514 PMCID: PMC9919196 DOI: 10.3390/plants12030427] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/07/2023] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Accompanying the process of growth and development, plants are exposed to ever-changing environments, which consequently trigger abiotic or biotic stress responses. The large protein family known as receptor-like protein kinases (RLKs) is involved in the regulation of plant growth and development, as well as in the response to various stresses. Understanding the biological function and molecular mechanism of RLKs is helpful for crop breeding. Research on the role and mechanism of RLKs has recently received considerable attention regarding the balance between plant growth and environmental adaptability. In this paper, we systematically review the classification of RLKs, the regulatory roles of RLKs in plant development (meristem activity, leaf morphology and reproduction) and in stress responses (disease resistance and environmental adaptation). This review focuses on recent findings revealing that RLKs simultaneously regulate plant growth and stress adaptation, which may pave the way for the better understanding of their function in crop improvement. Although the exact crosstalk between growth constraint and plant adaptation remains elusive, a profound study on the adaptive mechanisms for decoupling the developmental processes would be a promising direction for the future research.
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17
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Nagel M, Arc E, Rajjou L, Cueff G, Bailly M, Clément G, Sanchez-Vicente I, Bailly C, Seal CE, Roach T, Rolletschek H, Lorenzo O, Börner A, Kranner I. Impacts of drought and elevated temperature on the seeds of malting barley. FRONTIERS IN PLANT SCIENCE 2022; 13:1049323. [PMID: 36570960 PMCID: PMC9773840 DOI: 10.3389/fpls.2022.1049323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/10/2022] [Indexed: 06/17/2023]
Abstract
High seed quality is key to agricultural production, which is increasingly affected by climate change. We studied the effects of drought and elevated temperature during seed production on key seed quality traits of two genotypes of malting barley (Hordeum sativum L.). Plants of a "Hana-type" landrace (B1) were taller, flowered earlier and produced heavier, larger and more vigorous seeds that resisted ageing longer compared to a semi-dwarf breeding line (B2). Accordingly, a NAC domain-containing transcription factor (TF) associated with rapid response to environmental stimuli, and the TF ABI5, a key regulator of seed dormancy and vigour, were more abundant in B1 seeds. Drought significantly reduced seed yield in both genotypes, and elevated temperature reduced seed size. Genotype B2 showed partial thermodormancy that was alleviated by drought and elevated temperature. Metabolite profiling revealed clear differences between the embryos of B1 and B2. Drought, but not elevated temperature, affected the metabolism of amino acids, organic acids, osmolytes and nitrogen assimilation, in the seeds of both genotypes. Our study may support future breeding efforts to produce new lodging and drought resistant malting barleys without trade-offs that can occur in semi-dwarf varieties such as lower stress resistance and higher dormancy.
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Affiliation(s)
- Manuela Nagel
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Seeland, Germany
| | - Erwann Arc
- Department of Botany and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| | - Loïc Rajjou
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Gwendal Cueff
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Marlene Bailly
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Gilles Clément
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Inmaculada Sanchez-Vicente
- Department of Botany and Plant Physiology, Instituto de Investigación en Agrobiotecnología (CIALE), Facultad de Biología, Universidad de Salamanca, Salamanca, Spain
| | - Christophe Bailly
- Unité Mixte de Recherche (UMR) 7622 Biologie du Développement, Institut de Biologie Paris Seine (IBPS), Sorbonne Université, CNRS, Paris, France
| | - Charlotte E. Seal
- Royal Botanic Gardens, Kew, Wakehurst, Ardingly, Haywards Heath, West Sussex, Haywards Heath, United Kingdom
| | - Thomas Roach
- Department of Botany and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
| | - Hardy Rolletschek
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Seeland, Germany
| | - Oscar Lorenzo
- Department of Botany and Plant Physiology, Instituto de Investigación en Agrobiotecnología (CIALE), Facultad de Biología, Universidad de Salamanca, Salamanca, Spain
| | - Andreas Börner
- Genebank Department, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Seeland, Germany
| | - Ilse Kranner
- Department of Botany and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innsbruck, Austria
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Liu X, Xu H, Yu D, Bi Q, Yu H, Wang L. Identification of key gene networks related to the freezing resistance of apricot kernel pistils by integrating hormone phenotypes and transcriptome profiles. BMC PLANT BIOLOGY 2022; 22:531. [PMID: 36380302 PMCID: PMC9664786 DOI: 10.1186/s12870-022-03910-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Apricot kernel, a woody oil tree species, is known for the high oil content of its almond that can be used as an ideal feedstock for biodiesel production. However, apricot kernel is vulnerable to spring frost, resulting in reduced or even no yield. There are no effective countermeasures in production, and the molecular mechanisms underlying freezing resistance are not well understood. RESULTS We used transcriptome and hormone profiles to investigate differentially responsive hormones and their associated co-expression patterns of gene networks in the pistils of two apricot kernel cultivars with different cold resistances under freezing stress. The levels of auxin (IAA and ICA), cytokinin (IP and tZ), salicylic acid (SA) and jasmonic acid (JA and ILE-JA) were regulated differently, especially IAA between two cultivars, and external application of an IAA inhibitor and SA increased the spring frost resistance of the pistils of apricot kernels. We identified one gene network containing 65 hub genes highly correlated with IAA. Among these genes, three genes in auxin signaling pathway and three genes in brassinosteroid biosynthesis were identified. Moreover, some hub genes in this network showed a strong correlation such as protein kinases (PKs)-hormone related genes (HRGs), HRGs-HRGs and PKs-Ca2+ related genes. CONCLUSIONS Ca2+, brassinosteroid and some regulators (such as PKs) may be involved in an auxin-mediated freezing response of apricot kernels. These findings add to our knowledge of the freezing response of apricot kernels and may provide new ideas for frost prevention measures and high cold-resistant apricot breeding.
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Affiliation(s)
- Xiaojuan Liu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Huihui Xu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Dan Yu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Quanxin Bi
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Haiyan Yu
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
| | - Libing Wang
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091 China
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Soltabayeva A, Dauletova N, Serik S, Sandybek M, Omondi JO, Kurmanbayeva A, Srivastava S. Receptor-like Kinases (LRR-RLKs) in Response of Plants to Biotic and Abiotic Stresses. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11192660. [PMID: 36235526 PMCID: PMC9572924 DOI: 10.3390/plants11192660] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/30/2022] [Accepted: 10/01/2022] [Indexed: 05/14/2023]
Abstract
Plants live under different biotic and abiotic stress conditions, and, to cope with the adversity and severity, plants have well-developed resistance mechanisms. The mechanism starts with perception of the stimuli followed by molecular, biochemical, and physiological adaptive measures. The family of LRR-RLKs (leucine-rich repeat receptor-like kinases) is one such group that perceives biotic and abiotic stimuli and also plays important roles in different biological processes of development. This has been mostly studied in the model plant, Arabidopsis thaliana, and to some extent in other plants, such as Solanum lycopersicum, Nicotiana benthamiana, Brassica napus, Oryza sativa, Triticum aestivum, Hordeum vulgare, Brachypodium distachyon, Medicago truncatula, Gossypium barbadense, Phaseolus vulgaris, Solanum tuberosum, and Malus robusta. Most LRR-RLKs tend to form different combinations of LRR-RLKs-complexes (dimer, trimer, and tetramers), and some of them were observed as important receptors in immune responses, cell death, and plant development processes. However, less is known about the function(s) of LRR-RLKs in response to abiotic and biotic stresses. Here, we give recent updates about LRR-RLK receptors, specifically focusing on their involvement in biotic and abiotic stresses in the model plant, A. thaliana. Furthermore, the recent studies on LRR-RLKs that are homologous in other plants is also reviewed in relation to their role in triggering stress response processes against biotic and abiotic stimuli and/or in exploring their additional function(s). Furthermore, we present the interactions and combinations among LRR-RLK receptors that have been confirmed through experiments. Moreover, based on GENEINVESTIGATOR microarray database analysis, we predict some potential LRR-RLK genes involved in certain biotic and abiotic stresses whose function and mechanism may be explored.
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Affiliation(s)
- Aigerim Soltabayeva
- Biology Department, School of Science and Humanities, Nazarbayev University, Astana 010000, Kazakhstan
- Correspondence:
| | - Nurbanu Dauletova
- Biology Department, School of Science and Humanities, Nazarbayev University, Astana 010000, Kazakhstan
| | - Symbat Serik
- Biology Department, School of Science and Humanities, Nazarbayev University, Astana 010000, Kazakhstan
| | - Margulan Sandybek
- Biology Department, School of Science and Humanities, Nazarbayev University, Astana 010000, Kazakhstan
| | - John Okoth Omondi
- International Institute of Tropical Agriculture, Lilongwe P.O. Box 30258, Malawi
| | - Assylay Kurmanbayeva
- Department of Biotechnology and Microbiology, L.N. Gumilyov Eurasian National University, Astana 010000, Kazakhstan
| | - Sudhakar Srivastava
- NCS-TCP, National Institute of Plant Genome Research, New Delhi 110067, India
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20
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Yang QX, Chen D, Zhao Y, Zhang XY, Zhao M, Peng R, Sun NX, Baldwin TC, Yang SC, Liang YL. RNA-seq analysis reveals key genes associated with seed germination of Fritillaria taipaiensis P.Y.Li by cold stratification. FRONTIERS IN PLANT SCIENCE 2022; 13:1021572. [PMID: 36247582 PMCID: PMC9555243 DOI: 10.3389/fpls.2022.1021572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Seed dormancy is an adaptive strategy for environmental evolution. However, the molecular mechanism of the breaking of seed dormancy at cold temperatures is still unclear, and the genetic regulation of germination initiated by exposure to cold temperature requires further investigation. In the initial phase of the current study, the seed coat characteristics and embryo development of Fritillaria taipaiensis P.Y.Li at different temperatures (0°C, 4°C, 10°C & 25°C) was recorded. The results obtained demonstrated that embryo elongation and the dormancy-breaking was most significantly affected at 4°C. Subsequently, transcriptome analyses of seeds in different states of dormancy, at two stratification temperatures (4°C and 25°C) was performed, combined with weighted gene coexpression network analysis (WGCNA) and metabolomics, to explore the transcriptional regulation of seed germination in F. taipaiensis at the two selected stratification temperatures. The results showed that stratification at the colder temperature (4°C) induced an up-regulation of gene expression involved in gibberellic acid (GA) and auxin biosynthesis and the down-regulation of genes related to the abscisic acid (ABA) biosynthetic pathway. Thereby promoting embryo development and the stimulation of seed germination. Collectively, these data constitute a significant advance in our understanding of the role of cold temperatures in the regulation of seed germination in F. taipaiensis and also provide valuable transcriptomic data for seed dormancy for other non-model plant species.
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Affiliation(s)
- Qiu-Xiong Yang
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
| | - Dan Chen
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
| | - Yan Zhao
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
| | - Xiao-Yu Zhang
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
| | - Min Zhao
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
| | - Rui Peng
- Chongqing Academy of Chinese Materia Medica, Chongqing, China
| | - Nian-Xi Sun
- Chongqing Academy of Chinese Materia Medica, Chongqing, China
| | - Timothy Charles Baldwin
- Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, United Kingdom
| | - Sheng-Chao Yang
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
| | - Yan-Li Liang
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, China
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural Waseda University, Fengyuan, Kunming, China
- National & Local Joint Engineering Research Center on Germplasm Innovation & Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, China
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21
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WRKY Gene Family Drives Dormancy Release in Onion Bulbs. Cells 2022; 11:cells11071100. [PMID: 35406664 PMCID: PMC8997782 DOI: 10.3390/cells11071100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 11/16/2022] Open
Abstract
Onion (Allium cepa L.) is an important bulb crop grown worldwide. Dormancy in bulbous plants is an important physiological state mainly regulated by a complex gene network that determines a stop of vegetative growth during unfavorable seasons. Limited knowledge on the molecular mechanisms that regulate dormancy in onion were available until now. Here, a comparison between uninfected and onion yellow dwarf virus (OYDV)-infected onion bulbs highlighted an altered dormancy in the virus-infected plants, causing several symptoms, such as leaf striping, growth reduction, early bulb sprouting and rooting, as well as a lower abscisic acid (ABA) level at the start of dormancy. Furthermore, by comparing three dormancy stages, almost five thousand four hundred (5390) differentially expressed genes (DEGs) were found in uninfected bulbs, while the number of DEGs was significantly reduced (1322) in OYDV-infected bulbs. Genes involved in cell wall modification, proteolysis, and hormone signaling, such as ABA, gibberellins (GAs), indole-3-acetic acid (IAA), and brassinosteroids (BRs), that have already been reported as key dormancy-related pathways, were the most enriched ones in the healthy plants. Interestingly, several transcription factors (TFs) were up-regulated in the uninfected bulbs, among them three genes belonging to the WRKY family, for the first time characterized in onion, were identified during dormancy release. The involvement of specific WRKY genes in breaking dormancy in onion was confirmed by GO enrichment and network analysis, highlighting a correlation between AcWRKY32 and genes driving plant development, cell wall modification, and division via gibberellin and auxin homeostasis, two key processes in dormancy release. Overall, we present, for the first time, a detailed molecular analysis of the dormancy process, a description of the WRKY-TF family in onion, providing a better understanding of the role played by AcWRKY32 in the bulb dormancy release. The TF co-expressed genes may represent targets for controlling the early sprouting in onion, laying the foundations for novel breeding programs to improve shelf life and reduce postharvest.
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22
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Pang X, Suo J, Liu S, Xu J, Yang T, Xiang N, Wu Y, Lu B, Qin R, Liu H, Yao J. Combined transcriptomic and metabolomic analysis reveals the potential mechanism of seed germination and young seedling growth in Tamarix hispida. BMC Genomics 2022; 23:109. [PMID: 35135479 PMCID: PMC8826658 DOI: 10.1186/s12864-022-08341-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/28/2022] [Indexed: 11/23/2022] Open
Abstract
Background Seed germination is a series of ordered physiological and morphogenetic processes and a critical stage in plant life cycle. Tamarix hispida is one of the most salt-tolerant plant species; however, its seed germination has not been analysed using combined transcriptomics and metabolomics. Results Transcriptomic sequencing and widely targeted metabolomics were used to detect the transcriptional metabolic profiles of T. hispida at different stages of seed germination and young seedling growth. Transcriptomics showed that 46,538 genes were significantly altered throughout the studied development period. Enrichment study revealed that plant hormones, such as auxin, ABA, JA and SA played differential roles at varying stages of seed germination and post-germination. Metabolomics detected 1022 metabolites, with flavonoids accounting for the highest proportion of differential metabolites. Combined analysis indicated that flavonoid biosynthesis in young seedling growth, such as rhoifolin and quercetin, may improve the plant’s adaptative ability to extreme desert environments. Conclusions The differential regulation of plant hormones and the accumulation of flavonoids may be important for the seed germination survival of T. hispida in response to salt or arid deserts. This study enhanced the understanding of the overall mechanism in seed germination and post-germination. The results provide guidance for the ecological value and young seedling growth of T. hispida. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08341-x.
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Affiliation(s)
- Xin'an Pang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.,Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Xinjiang Production and Construction Corps, College of Life Sciences, Tarim University, Alar, 843300, China
| | - Jiangtao Suo
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Shuo Liu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Jindong Xu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Tian'ge Yang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Niyan Xiang
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Yue Wu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Bojie Lu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China
| | - Rui Qin
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China.
| | - Hong Liu
- Hubei Provincial Key Laboratory for Protection and Application of Special Plant Germplasm in Wuling Area of China, College of Life Sciences, South-Central University for Nationalities, Wuhan, 430074, Hubei, China.
| | - Jialing Yao
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
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23
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Tan L, Cui D, Wang L, Liu Q, Zhang D, Hu X, Fu Y, Chen S, Zou Y, Chen W, Wen W, Yang X, Yang Y, Li P, Tang Q. Genetic analysis of the early bud flush trait of tea plants ( Camellia sinensis) in the cultivar 'Emei Wenchun' and its open-pollinated offspring. HORTICULTURE RESEARCH 2022; 9:uhac086. [PMID: 35694722 PMCID: PMC9178331 DOI: 10.1093/hr/uhac086] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 03/25/2022] [Indexed: 05/19/2023]
Abstract
The timing of bud flush (TBF) in the spring is one of the most important agronomic traits of tea plants (Camellia sinensis). In this study, we designed an open-pollination breeding program using 'Emei Wenchun' (EW, a clonal tea cultivar with extra-early TBF) as a female parent. A half-sib population (n = 388) was selected for genotyping using specific-locus amplified fragment sequencing. The results enabled the identification of paternity for 294 (75.8%) of the offspring, including 11 (2.8%) from EW selfing and 217 (55.9%) assigned to a common father, 'Chuanmu 217' (CM). The putative EW × CM full-sib population was used to construct a linkage map. The map has 4244 markers distributed in 15 linkage groups, with an average marker distance of 0.34 cM. A high degree of collinearity between the linkage map and physical map was observed. Sprouting index, a trait closely related to TBF, was recorded for the offspring population in 2020 and 2021. The trait had moderate variation, with coefficients of variation of 18.5 and 17.6% in 2020 and 2021, respectively. Quantitative trait locus (QTL) mapping that was performed using the linkage map identified two major QTLs and three minor QTLs related to the sprouting index. These QTLs are distributed on Chr3, Chr4, Chr5, Chr9, and Chr14 of the reference genome. A total of 1960 predicted genes were found within the confidence intervals of QTLs, and 22 key candidate genes that underlie these QTLs were preliminarily screened. These results are important for breeding and understanding the genetic base of the TBF trait of tea plants.
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Affiliation(s)
- Liqiang Tan
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, Sichuan, China
- Corresponding authors. E-mail: ;
| | - Dong Cui
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Liubin Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Qinling Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Dongyang Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xiaoli Hu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yidan Fu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Shengxiang Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, Sichuan, China
| | - Yao Zou
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, Sichuan, China
| | - Wei Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, Sichuan, China
| | - Weiqi Wen
- Mingshan Tea Plant Breeding and Reproduce Farm of Sichuan Province, Yaan 625101, Sichuan, China
| | - Xuemei Yang
- Mingshan Tea Plant Breeding and Reproduce Farm of Sichuan Province, Yaan 625101, Sichuan, China
| | - Yang Yang
- Sichuan Yizhichun Tea Industry Co., Ltd,, Leshan 614503, Sichuan, China
| | - Pinwu Li
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, Sichuan, China
| | - Qian Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
- Tea Refining and Innovation Key Laboratory of Sichuan Province, Chengdu 611130, Sichuan, China
- Corresponding authors. E-mail: ;
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Ding J, Zhang B, Li Y, André D, Nilsson O. Phytochrome B and PHYTOCHROME INTERACTING FACTOR8 modulate seasonal growth in trees. THE NEW PHYTOLOGIST 2021; 232:2339-2352. [PMID: 33735450 DOI: 10.1111/nph.17350] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/04/2021] [Accepted: 03/10/2021] [Indexed: 05/27/2023]
Abstract
The seasonally synchronized annual growth cycle that is regulated mainly by photoperiod and temperature cues is a crucial adaptive strategy for perennial plants in boreal and temperate ecosystems. Phytochrome B (phyB), as a light and thermal sensor, has been extensively studied in Arabidopsis. However, the specific mechanisms for how the phytochrome photoreceptors control the phenology in tree species remain poorly understood. We characterized the functions of PHYB genes and their downstream PHYTOCHROME INTERACTING FACTOR (PIF) targets in the regulation of shade avoidance and seasonal growth in hybrid aspen trees. We show that while phyB1 and phyB2, as phyB in other plants, act as suppressors of shoot elongation during vegetative growth, they act as promoters of tree seasonal growth. Furthermore, while the Populus homologs of both PIF4 and PIF8 are involved in the shade avoidance syndrome (SAS), only PIF8 plays a major role as a suppressor of seasonal growth. Our data suggest that the PHYB-PIF8 regulon controls seasonal growth through the regulation of FT and CENL1 expression while a genome-wide transcriptome analysis suggests how, in Populus trees, phyB coordinately regulates SAS responses and seasonal growth cessation.
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Affiliation(s)
- Jihua Ding
- College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, China
| | - Bo Zhang
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 901 83, Sweden
| | - Yue Li
- College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan, 430070, China
| | - Domenique André
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 901 83, Sweden
| | - Ove Nilsson
- Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, Umeå, 901 83, Sweden
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25
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Zhong C, Patra B, Tang Y, Li X, Yuan L, Wang X. A transcriptional hub integrating gibberellin-brassinosteroid signals to promote seed germination in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:4708-4720. [PMID: 33963401 PMCID: PMC8219041 DOI: 10.1093/jxb/erab192] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 04/27/2021] [Indexed: 05/19/2023]
Abstract
Seed germination is regulated by multiple phytohormones, including gibberellins (GAs) and brassinosteroids (BRs); however, the molecular mechanism underlying GA and BR co-induced seed germination is not well elucidated. We demonstrated that BRs induce seed germination through promoting testa and endosperm rupture in Arabidopsis. BRs promote cell elongation, rather than cell division, at the hypocotyl-radicle transition region of the embryonic axis during endosperm rupture. Two key basic helix-loop-helix transcription factors in the BR signaling pathway, HBI1 and BEE2, are involved in the regulation of endosperm rupture. Expression of HBI1 and BEE2 was induced in response to BR and GA treatment. In addition, HBI1- or BEE2-overexpressing Arabidopsis plants are less sensitive to the BR biosynthesis inhibitor, brassinazole, and the GA biosynthesis inhibitor, paclobutrazol. HBI1 and BEE2 promote endosperm rupture and seed germination by directly regulating the GA-Stimulated Arabidopsis 6 (GASA6) gene. Expression of GASA6 was altered in Arabidopsis overexpressing HBI1, BEE2, or SRDX-repressor forms of the two transcription factors. In addition, HBI1 interacts with BEE2 to synergistically activate GASA6 expression. Our findings define a new role for GASA6 in GA and BR signaling and reveal a regulatory module that controls GA and BR co-induced seed germination in Arabidopsis.
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Affiliation(s)
- Chunmei Zhong
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Barunava Patra
- Department of Plant and Soil Sciences, Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
| | - Yi Tang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Science, South China Normal University, Guangzhou, China
| | - Xukun Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Science, South China Normal University, Guangzhou, China
| | - Ling Yuan
- Department of Plant and Soil Sciences, Kentucky Tobacco Research and Development Center, University of Kentucky, Lexington, KY, USA
- Correspondence: or
| | - Xiaojing Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Science, South China Normal University, Guangzhou, China
- Correspondence: or
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26
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Castroverde CDM, Dina D. Temperature regulation of plant hormone signaling during stress and development. JOURNAL OF EXPERIMENTAL BOTANY 2021:erab257. [PMID: 34081133 DOI: 10.1093/jxb/erab257] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 05/20/2023]
Abstract
Global climate change has broad-ranging impacts on the natural environment and human civilization. Increasing average temperatures along with more frequent heat waves collectively have negative effects on cultivated crops in agricultural sectors and wild species in natural ecosystems. These aberrantly hot temperatures, together with cold stress, represent major abiotic stresses to plants. Molecular and physiological responses to high and low temperatures are intricately linked to the regulation of important plant hormones. In this review, we shall highlight our current understanding of how changing temperatures regulate plant hormone pathways during immunity, stress responses and development. This article will present an overview of known temperature-sensitive or temperature-reinforced molecular hubs in hormone biosynthesis, homeostasis, signaling and downstream responses. These include recent advances on temperature regulation at the genomic, transcriptional, post-transcriptional and post-translational levels - directly linking some plant hormone pathways to known thermosensing mechanisms. Where applicable, diverse plant species and various temperature ranges will be presented, along with emerging principles and themes. It is anticipated that a grand unifying synthesis of current and future fundamental outlooks on how fluctuating temperatures regulate important plant hormone signaling pathways can be leveraged towards forward-thinking solutions to develop climate-smart crops amidst our dynamically changing world.
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Affiliation(s)
| | - Damaris Dina
- Department of Biology, Wilfrid Laurier University, Waterloo, Ontario, Canada
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27
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Ruan J, Chen H, Zhu T, Yu Y, Lei Y, Yuan L, Liu J, Wang ZY, Kuang JF, Lu WJ, Huang S, Li C. Brassinosteroids repress the seed maturation program during the seed-to-seedling transition. PLANT PHYSIOLOGY 2021; 186:534-548. [PMID: 33620498 PMCID: PMC8154094 DOI: 10.1093/plphys/kiab089] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/10/2021] [Indexed: 05/27/2023]
Abstract
In flowering plants, repression of the seed maturation program is essential for the transition from the seed to the vegetative phase, but the underlying mechanisms remain poorly understood. The B3-domain protein VIVIPAROUS1/ABSCISIC ACID-INSENSITIVE3-LIKE 1 (VAL1) is involved in repressing the seed maturation program. Here we uncovered a molecular network triggered by the plant hormone brassinosteroid (BR) that inhibits the seed maturation program during the seed-to-seedling transition in Arabidopsis (Arabidopsis thaliana). val1-2 mutant seedlings treated with a BR biosynthesis inhibitor form embryonic structures, whereas BR signaling gain-of-function mutations rescue the embryonic structure trait. Furthermore, the BR-activated transcription factors BRI1-EMS-SUPPRESSOR 1 and BRASSINAZOLE-RESISTANT 1 bind directly to the promoter of AGAMOUS-LIKE15 (AGL15), which encodes a transcription factor involved in activating the seed maturation program, and suppress its expression. Genetic analysis indicated that BR signaling is epistatic to AGL15 and represses the seed maturation program by downregulating AGL15. Finally, we showed that the BR-mediated pathway functions synergistically with the VAL1/2-mediated pathway to ensure the full repression of the seed maturation program. Together, our work uncovered a mechanism underlying the suppression of the seed maturation program, shedding light on how BR promotes seedling growth.
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Affiliation(s)
- Jiuxiao Ruan
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475001, China
| | - Huhui Chen
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Tao Zhu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yaoguang Yu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yawen Lei
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Liangbing Yuan
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jun Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
| | - Zhi-Yong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, California, USA
| | - Jian-Fei Kuang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Wang-Jin Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Shangzhi Huang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chenlong Li
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
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28
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Wu Y, Zheng L, Bing J, Liu H, Zhang G. Deep Sequencing of Small RNA Reveals the Molecular Regulatory Network of AtENO2 Regulating Seed Germination. Int J Mol Sci 2021; 22:ijms22105088. [PMID: 34065034 PMCID: PMC8151434 DOI: 10.3390/ijms22105088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/21/2021] [Accepted: 04/29/2021] [Indexed: 12/29/2022] Open
Abstract
Seed germination is a key step in the new life cycle of plants. In agriculture, we regard the rapid and consistent process of seed germination as one of the necessary conditions to measure the high quality and yield of crops. ENO2 is a key enzyme in glycolysis, which also plays an important role in plant growth and abiotic stress responses. In our study, we found that the time of seed germination in AtENO2 mutation (eno2-) was earlier than that of wild type (WT) in Arabidopsis thaliana. Previous studies have shown that microRNAs (miRNAs) were vital in seed germination. After deep sequencing of small RNA, we found 590 differentially expressed miRNAs in total, of which 87 were significantly differentially expressed miRNAs. By predicting the target genes of miRNAs and analyzing the GO annotation, we have counted 18 genes related to seed germination, including ARF family, TIR1, INVC, RR19, TUDOR2, GA3OX2, PXMT1, and TGA1. MiR9736-z, miR5059-z, ath-miR167a-5p, ath-miR167b, ath-miR5665, ath-miR866-3p, miR10186-z, miR8165-z, ath-miR857, ath-miR399b, ath-miR399c-3p, miR399-y, miR163-z, ath-miR393a-5p, and ath-miR393b-5p are the key miRNAs regulating seed germination-related genes. Through KEGG enrichment analysis, we found that phytohormone signal transduction pathways were significantly enriched, and these miRNAs mentioned above also participate in the regulation of the genes in plant hormone signal transduction pathways, thus affecting the synthesis of plant hormones and further affecting the process of seed germination. This study laid the foundation for further exploration of the AtENO2 regulation for seed germination.
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29
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Zhang M, Cui G, Bai X, Ye Z, Zhang S, Xie K, Sun F, Zhang C, Xi Y. Regulatory Network of Preharvest Sprouting Resistance Revealed by Integrative Analysis of mRNA, Noncoding RNA, and DNA Methylation in Wheat. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4018-4035. [PMID: 33769818 DOI: 10.1021/acs.jafc.1c00050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Preharvest sprouting (PHS) of grain occurs universally and sharply decreases grain quality and yield, but the mechanism remains unclear. MingXian169, a breeding inducer wheat for stripe rust, is widely used in the Huanghuai wheat-producing region, China. In this study, we found that MingXian169 could be considered an ideal material for PHS research because of its high PHS resistance. To further analyze the network of PHS, transcriptome sequencing of mRNA, noncoding RNA (ncRNA), and DNA methylome data were used to comparison germination seeds (GS) and dormant seeds (DS); 3027, 1516, and 22 genes and 95 103 methylation regions were identified as differentially expressed mRNA, DE-microRNAs (DE-miRNA), DE-long noncoding RNAs (DE-lncRNA), and differentially methylated regions (DMRs). Pathway enrichment tests highlighted plant hormone biosynthesis and signal transduction, glutathione-ascorbate metabolism, and starch and sucrose metabolism processes related to PHS mechanisms. Further analysis demonstrated that long noncoding RNA, miRNA, and DNA methylation played critical roles in transcriptional regulation of critical pathways during PHS by modifying and interacting with target genes. Quantitative real-time polymerase chain reaction (PCR) analyses of mRNA and miRNA confirmed the sequencing results. In the phytohormone content assay, abscisic acid (ABA) and jasmonic acid (JA) increased significantly in DS, and GA19 increased in GS. The ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), and β-d-glucosidase (BGLU) enzyme activities and the substance content of glutathione and sucrose were significantly higher in GS than in DS, implying that they were responsible for increasing PHS in MingXian169. Our results provide new insights into wheat PHS resistance at mRNA, ncRNA, and DNA methylation levels, with suggestions for crop breeding and production.
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Affiliation(s)
- Mingting Zhang
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Guibin Cui
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
- School of Life Sciences, Chongqing University, Chongqing 401331, People's Republic of China
| | - Xinchen Bai
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Zi Ye
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Shumeng Zhang
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Kunliang Xie
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Fengli Sun
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Chao Zhang
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
| | - Yajun Xi
- State Key Lab Crop Stress Biology Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
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30
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Tai L, Wang HJ, Xu XJ, Sun WH, Ju L, Liu WT, Li WQ, Sun J, Chen KM. Pre-harvest sprouting in cereals: genetic and biochemical mechanisms. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2857-2876. [PMID: 33471899 DOI: 10.1093/jxb/erab024] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/18/2021] [Indexed: 05/22/2023]
Abstract
With the growth of the global population and the increasing frequency of natural disasters, crop yields must be steadily increased to enhance human adaptability to risks. Pre-harvest sprouting (PHS), a term mainly used to describe the phenomenon in which grains germinate on the mother plant directly before harvest, is a serious global problem for agricultural production. After domestication, the dormancy level of cultivated crops was generally lower than that of their wild ancestors. Although the shortened dormancy period likely improved the industrial performance of cereals such as wheat, barley, rice, and maize, the excessive germination rate has caused frequent PHS in areas with higher rainfall, resulting in great economic losses. Here, we systematically review the causes of PHS and its consequences, the major indicators and methods for PHS assessment, and emphasize the biological significance of PHS in crop production. Wheat quantitative trait loci functioning in the control of PHS are also comprehensively summarized in a meta-analysis. Finally, we use Arabidopsis as a model plant to develop more complete PHS regulatory networks for wheat. The integration of this information is conducive to the development of custom-made cultivated lines suitable for different demands and regions, and is of great significance for improving crop yields and economic benefits.
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Affiliation(s)
- Li Tai
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hong-Jin Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiao-Jing Xu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wei-Hang Sun
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lan Ju
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wen-Ting Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wen-Qiang Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jiaqiang Sun
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Kun-Ming Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
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31
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Ortiz-Morea FA, He P, Shan L, Russinova E. It takes two to tango - molecular links between plant immunity and brassinosteroid signalling. J Cell Sci 2020; 133:133/22/jcs246728. [PMID: 33239345 DOI: 10.1242/jcs.246728] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
In response to the invasion of microorganisms, plants actively balance their resources for growth and defence, thus ensuring their survival. The regulatory mechanisms underlying plant immunity and growth operate through complex networks, in which the brassinosteroid phytohormone is one of the central players. In the past decades, a growing number of studies have revealed a multi-layered crosstalk between brassinosteroid-mediated growth and plant immunity. In this Review, by means of the tango metaphor, we immerse ourselves into the intimate relationship between brassinosteroid and plant immune signalling pathways that is tailored by the lifestyle of the pathogen and modulated by other phytohormones. The plasma membrane is the unique stage where brassinosteroid and immune signals are dynamically integrated and where compartmentalization into nanodomains that host distinct protein consortia is crucial for the dance. Shared downstream signalling components and transcription factors relay the tango play to the nucleus to activate the plant defence response and other phytohormonal signalling pathways for the finale. Understanding how brassinosteroid and immune signalling pathways are integrated in plants will help develop strategies to minimize the growth-defence trade-off, a key challenge for crop improvement.
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Affiliation(s)
- Fausto Andres Ortiz-Morea
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA .,Amazonian Research Center Cimaz-Macagual, University of the Amazon, Florencia 180002622, Colombia
| | - Ping He
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Libo Shan
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Eugenia Russinova
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium .,Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
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32
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Matilla AJ. Seed Dormancy: Molecular Control of Its Induction and Alleviation. PLANTS 2020; 9:plants9101402. [PMID: 33096840 PMCID: PMC7589034 DOI: 10.3390/plants9101402] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/12/2020] [Accepted: 10/16/2020] [Indexed: 12/15/2022]
Abstract
A set of seed dormancy traits is included in this Special Issue. Thus, DELAY OF GERMINATION1 (DOG1) is reviewed in depth. Binding of DOG1 to Protein Phosphatase 2C ABSCISIC ACID (PP2C ABA) Hypersensitive Germination (AHG1) and heme are independent processes, but both are essential for DOG1’s function in vivo. AHG1 and DOG1 constitute a regulatory system for dormancy and germination. DOG1 affects the ABA INSENSITIVE5 (ABI5) expression level. Moreover, reactive oxygen species (ROS) homeostasis is linked with seed after-ripening (AR) process and the oxidation of a portion of seed long-lived (SLL) mRNAs seems to be related to dormancy release. The association of SLL mRNAs to monosomes is required for their transcriptional upregulation at the beginning of germination. Global DNA methylation levels remain stable during dormancy, decreasing when germination occurs. The remarkable intervention of auxin in the life of the seed is increasingly evident year after year. Here, its synergistic cooperation with ABA to promote the dormancy process is extensively reviewed. ABI3 participation in this process is critical. New data on the effect of alternating temperatures (ATs) on dormancy release are contained in this Special Issue. On the one hand, the transcriptome patterns stimulated at ATs comprised ethylene and ROS signaling and metabolism together with ABA degradation. On the other hand, a higher physical dormancy release was observed in Medicago truncatula under 35/15 °C than under 25/15 °C, and genome-wide association analysis identified 136 candidate genes related to secondary metabolite synthesis, hormone regulation, and modification of the cell wall. Finally, it is suggested that changes in endogenous γ-aminobutyric acid (GABA) may prevent chestnut germination, and a possible relation with H2O2 production is considered.
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Affiliation(s)
- Angel J Matilla
- Department of Functional Biology, Life Campus, Faculty of Pharmacy, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain
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33
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Ali MH, Sobze JM, Pham TH, Nadeem M, Liu C, Galagedara L, Cheema M, Thomas R. Carbon Nanoparticles Functionalized with Carboxylic Acid Improved the Germination and Seedling Vigor in Upland Boreal Forest Species. NANOMATERIALS 2020; 10:nano10010176. [PMID: 31968542 PMCID: PMC7023356 DOI: 10.3390/nano10010176] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/14/2019] [Accepted: 01/14/2020] [Indexed: 12/21/2022]
Abstract
Nanopriming has been shown to significantly improve seed germination and seedling vigor in several agricultural crops. However, this approach has not been applied to native upland boreal forest species with complex seed dormancy to improve propagation. Herein, we demonstrate the effectiveness of carbon nanoparticles functionalized with carboxylic acids in resolving seed dormancy and improved the propagation of two native upland boreal forest species. Seed priming with carbon nanoparticles functionalized with carboxylic acids followed by stratification were observed to be the most effective in improving germination to 90% in green alder (Alnus viridis L.) compared to 60% in the control. Conversely, a combination of carbon nanoparticles (CNPs), especially multiwall carbon nanoparticles functionalized with carboxylic acid (MWCNT–COOH), cold stratification, mechanical scarification and hormonal priming (gibberellic acid) was effective for buffaloberry seeds (Shepherdia canadensis L.). Both concentrations (20 µg and 40 µg) of MWCNT–COOH had a higher percent germination (90%) compared to all other treatments. Furthermore, we observed the improvement in germination, seedling vigor and resolution of both embryo and seed coat dormancy in upland boreal forest species appears to be associated with the remodeling of C18:3 enriched fatty acids in the following seed membrane lipid molecular species: PC18:1/18:3, PG16:1/18:3, PE18:3/18:2, and digalactosyldiacylglycerol (DGDG18:3/18:3). These findings suggest that nanopriming may be a useful approach to resolve seed dormancy issues and improve the seed germination in non-resource upland boreal forest species ideally suited for forest reclamation following resource mining.
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Affiliation(s)
- Md. Hossen Ali
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
| | - Jean-Marie Sobze
- Northern Alberta Institute of Technology, 8102-99 Avenue, Peace River, AL T8S 1R2, Canada;
| | - Thu Huong Pham
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
| | - Muhammad Nadeem
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
- Correspondence: (M.N.); (R.T.)
| | - Chen Liu
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
| | - Lakshman Galagedara
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
| | - Mumtaz Cheema
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
| | - Raymond Thomas
- School of Science and the Environment/Boreal Ecosystem Research Facility, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, NL A2H 5G5, Canada; (M.H.A.); (T.H.P.); (C.L.); (L.G.); (M.C.)
- Correspondence: (M.N.); (R.T.)
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