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Kuczyńska A, Michałek M, Ogrodowicz P, Kempa M, Witaszak N, Dziurka M, Gruszka D, Daszkowska-Golec A, Szarejko I, Krajewski P, Mikołajczak K. Drought-induced molecular changes in crown of various barley phytohormone mutants. PLANT SIGNALING & BEHAVIOR 2024; 19:2371693. [PMID: 38923879 PMCID: PMC11210921 DOI: 10.1080/15592324.2024.2371693] [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: 02/26/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
One of the main signal transduction pathways that modulate plant growth and stress responses, including drought, is the action of phytohormones. Recent advances in omics approaches have facilitated the exploration of plant genomes. However, the molecular mechanisms underlying the response in the crown of barley, which plays an essential role in plant performance under stress conditions and regeneration after stress treatment, remain largely unclear. The objective of the present study was the elucidation of drought-induced molecular reactions in the crowns of different barley phytohormone mutants. We verified the hypothesis that defects of gibberellins, brassinosteroids, and strigolactones action affect the transcriptomic, proteomic, and hormonal response of barley crown to the transitory drought influencing plant development under stress. Moreover, we assumed that due to the strong connection between strigolactones and branching the hvdwarf14.d mutant, with dysfunctional receptor of strigolactones, manifests the most abundant alternations in crowns and phenotype under drought. Finally, we expected to identify components underlying the core response to drought which are independent of the genetic background. Large-scale analyses were conducted using gibberellins-biosynthesis, brassinosteroids-signaling, and strigolactones-signaling mutants, as well as reference genotypes. Detailed phenotypic evaluation was also conducted. The obtained results clearly demonstrated that hormonal disorders caused by mutations in the HvGA20ox2, HvBRI1, and HvD14 genes affected the multifaceted reaction of crowns to drought, although the expression of these genes was not induced by stress. The study further detected not only genes and proteins that were involved in the drought response and reacted specifically in mutants compared to the reaction of reference genotypes and vice versa, but also the candidates that may underlie the genotype-universal stress response. Furthermore, candidate genes involved in phytohormonal interactions during the drought response were identified. We also found that the interplay between hormones, especially gibberellins and auxins, as well as strigolactones and cytokinins may be associated with the regulation of branching in crowns exposed to drought. Overall, the present study provides novel insights into the molecular drought-induced responses that occur in barley crowns.
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Affiliation(s)
- Anetta Kuczyńska
- Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Martyna Michałek
- Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Piotr Ogrodowicz
- Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Michał Kempa
- Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Natalia Witaszak
- Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Michał Dziurka
- Faculty of Natural Sciences, The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Krakow, Poland
| | - Damian Gruszka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Agata Daszkowska-Golec
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Iwona Szarejko
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Paweł Krajewski
- Institute of Plant Genetics, Polish Academy of Sciences, Poznań, Poland
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Regon P, Saha B, Jyoti SY, Gupta D, Kundu B, Tanti B, Panda SK. Transcriptional networks revealed late embryogenesis abundant genes regulating drought mitigation in aromatic Keteki Joha rice. PHYSIOLOGIA PLANTARUM 2024; 176:e14348. [PMID: 38769068 DOI: 10.1111/ppl.14348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 04/18/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024]
Abstract
Climate change has become increasingly intertwined with the occurrence and severity of droughts. As global temperatures rise due to greenhouse gas emissions, weather patterns are altered, leading to shifts in precipitation levels and distribution. These exacerbate the risk of drought in many regions, with potentially devastating consequences. A comprehensive transcriptome analysis was performed on Keteki Joha, an aromatic rice from North East India, with the aim of elucidating molecular responses to drought. Numerous genes linked to drought were activated, with both ABA-dependent and ABA-independent pathways playing crucial roles. Upregulated genes were enriched with gene ontology terms with response to abscisic acid and abscisic acid-activated signalling pathway, suggesting the existence of an ABA-dependent pathway for drought mitigation. The upregulated genes were also enriched with responses to stress, water, heat, jasmonic acid, and hydrogen peroxide, indicating the presence of an ABA-independent pathway alongside the ABA-dependent mechanism. Weighted Correlation Network Analysis (WGCNA) identified 267 genes that specifically govern drought mitigation in Keteki Joha. The late embryogenesis abundant (LEA) gene family emerges as the most overrepresented in both RNA sequencing data and WGCNA analysis, suggesting their dominant role in mitigating drought. Notably, 31 LEA genes were induced in seedlings and 32 in mature stages under drought stress. The LEA3-1, LEA14/WSI18, RAB16A, RAB16B, DHN1, DHN6, LEA1, LEA3, LEA17, and LEA33 exhibited and established co-expression with numerous other drought stress-related genes, indicating their inseparable role in alleviating drought. Consequently, LEA genes have been proposed to be primary and crucial responders to drought in Keteki Joha.
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Affiliation(s)
- Preetom Regon
- Plant Molecular Biology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, India
- Department of Entomology, Agricultural Research Organization, The Volcani Institute, Rishon LeZion, Israel
| | - Bedabrata Saha
- Plant Pathology and Weed Research Department, Newe Ya'ar Research Centre, Agricultural Research Organization, Israel
| | - Sabnoor Yeasrin Jyoti
- Plant Molecular Biology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, India
| | - Divya Gupta
- Plant Functional Genomics and Molecular Biology Laboratory, Department of Biochemistry, Central University of Rajasthan, Ajmer, Bandarsindri, Rajasthan, India
| | - Bikash Kundu
- Plant Molecular Biology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, India
| | - Bhaben Tanti
- Plant Molecular Biology Laboratory, Department of Botany, Gauhati University, Guwahati, Assam, India
| | - Sanjib Kumar Panda
- Plant Functional Genomics and Molecular Biology Laboratory, Department of Biochemistry, Central University of Rajasthan, Ajmer, Bandarsindri, Rajasthan, India
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Zhao Y, Yang X, Zhang J, Huang L, Shi Z, Tian Z, Sha A, Lu G. Thaumatin-like protein family genes VfTLP4-3 and VfTLP5 are critical for faba bean's response to drought stress at the seedling stage. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108243. [PMID: 38048701 DOI: 10.1016/j.plaphy.2023.108243] [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: 09/10/2023] [Revised: 11/04/2023] [Accepted: 11/27/2023] [Indexed: 12/06/2023]
Abstract
Thaumatin-like proteins (TLPs) are a diverse family of pathogenesis-related proteins (PR-5) found in various plant species. Faba bean is an economically important crop known for its nutritional value and resilience to harsh environmental conditions, including drought. In this study, we conducted a comprehensive analysis of the gene structure, phylogenetics, and expression patterns of TLP genes in faba bean, with a specific focus on their response to drought stress. A total of 10 TLP genes were identified and characterized from the faba bean transcriptome, which could be classified into four distinct groups based on their evolutionary relationships. Conserved cysteine residues and REDDD motifs, which are characteristic features of TLPs, were found in most of the identified VfTLP members, and these proteins were likely to reside in the cytoplasm. Two genes, VfTLP4-3 and VfTLP5, exhibited significant upregulation under drought conditions. Additionally, ectopically expressing VfTLP4-3 and VfTLP5 in tobacco leaves resulted in enhanced drought tolerance and increased peroxidase (POD) activity. Moreover, the protein VfTLP4-3 was hypothesized to interact with glycoside hydrolase family 18 (GH18), endochitinase, dehydrin, Barwin, and aldolase, all of which are implicated in chitin metabolism. Conversely, VfTLP5 was anticipated to associate with peptidyl-prolyl cis-trans isomerase-like 3, a molecule linked to the synthesis of proline. These findings suggest that these genes may play crucial roles in mediating the drought response in faba bean through the regulation of these metabolic pathways, and serve as a foundation for future genetic improvement strategies targeting enhanced drought resilience in this economically important crop.
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Affiliation(s)
- Yongguo Zhao
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, 525000, PR China
| | - Xinyu Yang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China
| | - Jiannan Zhang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China; College of Agriculture, Yangtze University, Jinzhou, 434023, PR China
| | - Liqiong Huang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China
| | - Zechen Shi
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China
| | - Zhitao Tian
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430062, PR China.
| | - Aihua Sha
- College of Agriculture, Yangtze University, Jinzhou, 434023, PR China.
| | - Guangyuan Lu
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, 525000, PR China.
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Gu Y, Yu H, He S, Zhang P, Ma X. Genome-Wide Identification and Characterization of the TLP Gene Family in Phyllostachys edulis and Association with Witches' Broom Disease Resistance in Bamboo. Int J Mol Sci 2023; 24:10257. [PMID: 37373405 DOI: 10.3390/ijms241210257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 06/29/2023] Open
Abstract
Thaumatin-like proteins (TLPs) are pathogenesis-related proteins with pivotal roles in plant defense mechanisms. In this study, various bioinformatics and RNA-seq methods were used to analyze the biotic and abiotic stress responses of the TLP family in Phyllostachys edulis. Overall, 81 TLP genes were identified in P. edulis; 166 TLPs from four plant species were divided into three groups and ten subclasses, with genetic covariance observed between these species. Subcellular localization in silico studies indicated that TLPs were primarily distributed in the extracellular. Analysis of the upstream sequences of TLPs demonstrated the presence of cis-acting elements related to disease defense, environmental stress, and hormonal responses. Multiple sequence alignment demonstrated that most TLPs possessed five conserved REDDD amino acid sequences with only a few amino acid residue differences. RNA-seq analysis of P. edulis responses to Aciculosporium take, the pathogenic fungus that causes witches' broom disease, showed that P. edulis TLPs (PeTLPs) were expressed in different organs, with the highest expression in buds. PeTLPs responded to both abscisic acid and salicylic acid stress. These PeTLP expression patterns were consistent with their gene and protein structures. Collectively, our findings provide a basis for further comprehensive analyses of the genes related to witches' broom in P. edulis.
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Affiliation(s)
- Yu Gu
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Haoyue Yu
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Sainan He
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Pan Zhang
- College of Life Sciences, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoping Ma
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
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Su L, Zhang Y, Yu S, Geng L, Lin S, Ouyang L, Jiang X. RcbHLH59-RcPRs module enhances salinity stress tolerance by balancing Na +/K + through callose deposition in rose ( Rosa chinensis). HORTICULTURE RESEARCH 2023; 10:uhac291. [PMID: 36938564 PMCID: PMC10018784 DOI: 10.1093/hr/uhac291] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/22/2022] [Indexed: 06/18/2023]
Abstract
Basic helix-loop-helix (bHLH) proteins play pivotal roles in plant growth, development, and stress responses. However, the molecular and functional properties of bHLHs have not been fully characterized. In this study, a novel XI subgroup of the bHLH protein gene RcbHLH59 was isolated and identified in rose (Rosa sp.). This gene was induced by salinity stress in both rose leaves and roots, and functioned as a transactivator. Accordingly, silencing RcbHLH59 affected the antioxidant system, Na +/K + balance, and photosynthetic system, thereby reducing salt tolerance, while the transient overexpression of RcbHLH59 improved salinity stress tolerance. Additionally, RcbLHLH59 was found to regulate the expression of sets of pathogenesis-related (PR) genes in RcbHLH59-silenced (TRV-RcbHLH59) and RcbHLH59-overexpressing (RcbHLH59-OE) rose plants. The RcPR4/1 and RcPR5/1 transcript levels showed opposite changes in the TRV-RcbHLH59 and RcbHLH59-OE lines, suggesting that these two genes are regulated by RcbHLH59. Further analysis revealed that RcbHLH59 binds to the promoters of RcPR4/1 and RcPR5/1, and that the silencing of RcPR4/1 or RcPR5/1 led to decreased tolerance to salinity stress. Moreover, callose degradation- and deposition-related genes were impaired in RcPR4/1- or RcPR5/1-silenced plants, which displayed a salt tolerance phenotype by balancing the Na+/K+ ratio through callose deposition. Collectively, our data highlight a new RcbLHLH59-RcPRs module that positively regulates salinity stress tolerance by balancing Na+/K+ and through callose deposition in rose plants.
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Affiliation(s)
- Lin Su
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Yichang Zhang
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Shuang Yu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Lifang Geng
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Shang Lin
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
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Zhao Q, Dong M, Li M, Jin L, Paré PW. Light-Induced Flavonoid Biosynthesis in Sinopodophyllum hexandrum with High-Altitude Adaptation. PLANTS (BASEL, SWITZERLAND) 2023; 12:575. [PMID: 36771657 PMCID: PMC9919621 DOI: 10.3390/plants12030575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Sinopodophyllum hexandrum is a perennial alpine herb producing the anti-cancer metabolite podophyllotoxin (PPT). Although the adaptation of S. hexandrum to high altitudes has been demonstrated and the effects of temperature, precipitation, and UV-B light on plant growth and metabolite accumulation have been studied, knowledge on the role of flavonoid biosynthesis in adapting to high altitudes is limited. In this study, light intensity, amount and type of flavonoids, and differentially expressed proteins (DEPs) and genes (DEGs) at 2300 and 3300 m were analyzed by HPLC, proteomic, transcriptomic, and qRT-PCR analysis. We found that higher light intensity correlated with greater flavonoid, flavonol, and anthocyanin content as well as higher anthocyanin to total flavonoid and flavonol ratios observed at the higher altitude. Based on proteomic and transcriptomic analyses, nine DEPs and 41 DEGs were identified to be involved in flavonoid biosynthesis and light response at 3300 m. The relative expression of nine genes (PAL, CHS1, IFRL, ANS, MYB4, BHLH137, CYP6, PPO1, and ABCB19) involved in flavonoid biosynthesis and seven genes (HSP18.1, HSP70, UBC4, ERF5, ERF9, APX3, and EX2) involved in light stress were observed to be up-regulated at 3300 m compared with 2300 m. These findings indicate that light intensity may play a regulatory role in enhancing flavonoid accumulation that allows S. hexandrum to adapt to elevated-altitude coupled with high light intensity.
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Affiliation(s)
- Qiaozhu Zhao
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Miaoyin Dong
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Mengfei Li
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Arid Land Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Ling Jin
- College of Pharmacy, Gansu University of Chinese Medicine, Lanzhou 730101, China
| | - Paul W. Paré
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
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Liang L, Xie A, Yang H, Li N, Ma P, Wei S, Zhang S, Lv Y, Hu Y. Quantitative Acetylome Analysis of Soft Wheat Seeds during Artificial Ageing. Foods 2022; 11:foods11223611. [PMID: 36429203 PMCID: PMC9689531 DOI: 10.3390/foods11223611] [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: 10/21/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Lysine acetylation (Kac) is a protein post-translational modification (PTM) widely found in plants that plays vital roles in metabolic pathways. Although seed germination and development are regulated by Kac, its potential function in seed ageing remains to be investigated. Our preliminary study demonstrated that Kac levels were altered during wheat seed artificial ageing. However, its specific role in this process still needs to be elucidated. Here, we performed quantitative acetylation proteomics analysis of soft wheat seeds with different germination rates during artificial ageing. A total of 175 acetylation proteins and 255 acetylation modification sites were remarkably changed. The differentially acetylated proteins were enriched in metabolism; response to harsh intracellular environment, such as ROS; protein storage and processing. Notably, expression, point mutation to mimic Kac by K to Q mutation at K80 and K138, protein purification and enzyme activity detection revealed that the Kac of ROS-scavenging glutathione transferase attenuated its activity, indicating that the defense ability of wheat seeds to stress gradually diminished, and the ageing process was inevitable. Collectively, our data provide a basis for further understanding the roles of Kac in seed ageing and might aid in the development of new techniques to prolong seed viability and food quality.
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Affiliation(s)
- Liuke Liang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Aowen Xie
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Haojie Yang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Na Li
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Ping’an Ma
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Shan Wei
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Shuaibing Zhang
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yangyong Lv
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
- Correspondence:
| | - Yuansen Hu
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450001, China
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Wang F, Shen S, Zhao C, Cui Z, Meng L, Wu W, Liu D, Wang H. TaPR1 Interacts With TaTLP1 via the αIV Helix to Be Involved in Wheat Defense to Puccinia triticina Through the CAPE1 Motif. FRONTIERS IN PLANT SCIENCE 2022; 13:874654. [PMID: 35720612 PMCID: PMC9199852 DOI: 10.3389/fpls.2022.874654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 04/13/2022] [Indexed: 05/29/2023]
Abstract
Pathogenesis-related (PR) proteins play important roles in plant defense response and systemic acquired resistance (SAR). PR1 has antifungal activity against many plant pathogens. In our previous study, RNA sequencing (RNA-seq) was conducted on resistant wheat line TcLr19 and sensitive wheat cultivar Chinese Spring inoculated with Puccinia triticina (Pt) race PHNT. In this study, seven salicylic acid (SA)-induced TaPR1 genes involved in plant disease resistance were found in the RNA-seq library. Quantitative PCR (qPCR) results showed that TaPR1-4 was most induced by Pt among these seven TaPR1 genes in the incompatible interaction. Yeast two-hybrid (Y2H) results showed that TaPR1-4 interacted with TaTLP1 via the αIV helix. Protein-mediated phenotyping assays in vivo and antifungal activity in vitro demonstrated that wheat leaves infiltrated with pure TaPR1-4 protein developed significantly less disease compared to control leaves. This effect was correlated with a strong increase in defense gene expression, and resistance activity was dependent on the CAPE1 motif located in the C-terminal region of TaPR1-4. These findings increase current knowledge regarding the interaction of TaPR1 and TaTLP1 and provide new insights on the role of TaPR1 protein in the resistance of wheat to Pt.
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Affiliation(s)
- Fei Wang
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Songsong Shen
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Cunpeng Zhao
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
- Institute of Cotton, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, China
| | - Zhongchi Cui
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Linshuo Meng
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Wenyue Wu
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Daqun Liu
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
| | - Haiyan Wang
- College of Plant Protection, Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Hebei Agricultural University, Baoding, China
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Su L, Zhao X, Geng L, Fu L, Lu Y, Liu Q, Jiang X. Analysis of the thaumatin-like genes of Rosa chinensis and functional analysis of the role of RcTLP6 in salt stress tolerance. PLANTA 2021; 254:118. [PMID: 34757465 DOI: 10.1007/s00425-021-03778-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
A total of 27 rose thaumatin-like protein (TLP) genes were identified from the rose genome through bioinformatics analyses. RcTLP6 was found to confer salinity stress tolerance in rose. Thaumatin-like proteins (TLPs) play critical roles in regulating many biological processes, including abiotic and biotic stress responses in plants. Here, we conducted a genome-wide screen of TLPs in rose (Rosa chinensis) and identified 27 RcTLPs. The identified RcTLPs, as well as other TLPs from six different plant species, were placed into nine groups based on a phylogenetic analysis. An analysis of the intron-exon structures of the TLPs revealed a high degree of similarity. RcTLP genes were found on all chromosomes except for chromosome four. Cis-regulatory elements (CEs) were identified in the promoters of all RcTLPs, including CEs associated with growth, development and hormone-responsiveness, as well as abiotic and biotic responses, indicating they play diverse roles in rose. Transcriptomics analysis revealed that RcTLPs had tissue-specific expression patterns, and several root-preferential RcTLPs were responsive to drought and salinity stress. Quantitative PCR analysis of six RcTLPs under ABA, PEG and NaCl treatment confirmed the differentially expressed genes identified in the transcriptomics experiment. In addition, silencing RcTLP6 in rose leaves led to decreased tolerance to salinity stress. We also screened proteins which may interact with RcTLP6 to understand its biological roles. This study represents the first report of the TLP gene family in rose and expands the current understanding of the role that RcTLP6 plays in salt tolerance. These findings lay a foundation for future utilization of RcTLPs to improve rose abiotic stress tolerance.
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Affiliation(s)
- Lin Su
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Xiaojuan Zhao
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Lifang Geng
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Lufeng Fu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Yizeng Lu
- Shandong Provincial Center of Forest Tree Germplasm Resources, Jinan, 250102, China
| | - Qinghua Liu
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China
| | - Xinqiang Jiang
- College of Landscape Architecture and Forestry, Qingdao Agricultural University, Qingdao, 266000, China.
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