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Wang D, Zhang Y, Chen C, Chen R, Bai X, Qiang Z, Fu J, Qin T. The genetic variation in drought resistance in eighteen perennial ryegrass varieties and the underlying adaptation mechanisms. BMC PLANT BIOLOGY 2023; 23:451. [PMID: 37749497 PMCID: PMC10521523 DOI: 10.1186/s12870-023-04460-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 09/13/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Drought resistance is a complex characteristic closely related to the severity and duration of stress. Perennial ryegrass (Lolium perenne L.) has no distinct drought tolerance but often encounters drought stress seasonally. Although the response of perennial ryegrass to either extreme or moderate drought stress has been investigated, a comprehensive understanding of perennial ryegrass response to both conditions of drought stress is currently lacking. RESULTS In this study, we investigated the genetic variation in drought resistance in 18 perennial ryegrass varieties under both extreme and moderate drought conditions. The performance of these varieties exhibited obvious diversity, and the survival of perennial ryegrass under severe stress was not equal to good growth under moderate drought stress. 'Sopin', with superior performance under both stress conditions, was the best-performing variety. Transcriptome, physiological, and molecular analyses revealed that 'Sopin' adapted to drought stress through multiple sophisticated mechanisms. Under stress conditions, starch and sugar metabolic enzymes were highly expressed, while CslA was expressed at low levels in 'Sopin', promoting starch degradation and soluble sugar accumulation. The expression and activity of superoxide dismutase were significantly higher in 'Sopin', while the activity of peroxidase was lower, allowing for 'Sopin' to maintain a better balance between maintaining ROS signal transduction and alleviating oxidative damage. Furthermore, drought stress-related transcriptional and posttranscriptional regulatory mechanisms, including the upregulation of transcription factors, kinases, and E3 ubiquitin ligases, facilitate abscisic acid and stress signal transduction. CONCLUSION Our study provides insights into the resistance of perennial ryegrass to both extreme and moderate droughts and the underlying mechanisms by which perennial ryegrass adapts to drought conditions.
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Affiliation(s)
- Dan Wang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Yuting Zhang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Chunyan Chen
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Ruixin Chen
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Xuechun Bai
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Zhiquan Qiang
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Juanjuan Fu
- College of Grassland Agriculture, Northwest A&F University, Yangling, China
| | - Tao Qin
- College of Grassland Agriculture, Northwest A&F University, Yangling, China.
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Wang K, Liu Y, Tian J, Huang K, Shi T, Dai X, Zhang W. Transcriptional Profiling and Identification of Heat-Responsive Genes in Perennial Ryegrass by RNA-Sequencing. FRONTIERS IN PLANT SCIENCE 2017; 8:1032. [PMID: 28680431 PMCID: PMC5478880 DOI: 10.3389/fpls.2017.01032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 05/29/2017] [Indexed: 05/18/2023]
Abstract
Perennial ryegrass (Lolium perenne) is one of the most widely used forage and turf grasses in the world due to its desirable agronomic qualities. However, as a cool-season perennial grass species, high temperature is a major factor limiting its performance in warmer and transition regions. In this study, a de novo transcriptome was generated using a cDNA library constructed from perennial ryegrass leaves subjected to short-term heat stress treatment. Then the expression profiling and identification of perennial ryegrass heat response genes by digital gene expression analyses was performed. The goal of this work was to produce expression profiles of high temperature stress responsive genes in perennial ryegrass leaves and further identify the potentially important candidate genes with altered levels of transcript, such as those genes involved in transcriptional regulation, antioxidant responses, plant hormones and signal transduction, and cellular metabolism. The de novo assembly of perennial ryegrass transcriptome in this study obtained more total and annotated unigenes compared to previously published ones. Many DEGs identified were genes that are known to respond to heat stress in plants, including HSFs, HSPs, and antioxidant related genes. In the meanwhile, we also identified four gene candidates mainly involved in C4 carbon fixation, and one TOR gene. Their exact roles in plant heat stress response need to dissect further. This study would be important by providing the gene resources for improving heat stress tolerance in both perennial ryegrass and other cool-season perennial grass plants.
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Affiliation(s)
- Kehua Wang
- Department of Grassland Science, China Agricultural UniversityBeijing, China
- *Correspondence: Kehua Wang, Wanjun Zhang,
| | - Yanrong Liu
- Department of Grassland Science, China Agricultural UniversityBeijing, China
| | - Jinli Tian
- Department of Grassland Science, China Agricultural UniversityBeijing, China
| | - Kunyong Huang
- Department of Grassland Science, China Agricultural UniversityBeijing, China
| | - Tianran Shi
- Department of Grassland Science, China Agricultural UniversityBeijing, China
| | - Xiaoxia Dai
- Department of Grassland Science, China Agricultural UniversityBeijing, China
| | - Wanjun Zhang
- Department of Grassland Science, China Agricultural UniversityBeijing, China
- National Energy R&D Center for Biomass, China Agricultural UniversityBeijing, China
- *Correspondence: Kehua Wang, Wanjun Zhang,
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Patel M, Milla-Lewis S, Zhang W, Templeton K, Reynolds WC, Richardson K, Biswas M, Zuleta MC, Dewey RE, Qu R, Sathish P. Overexpression of ubiquitin-like LpHUB1 gene confers drought tolerance in perennial ryegrass. PLANT BIOTECHNOLOGY JOURNAL 2015; 13:689-699. [PMID: 25487628 DOI: 10.1111/pbi.12291] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 10/08/2014] [Accepted: 10/10/2014] [Indexed: 06/04/2023]
Abstract
HUB1, also known as Ubl5, is a member of the subfamily of ubiquitin-like post-translational modifiers. HUB1 exerts its role by conjugating with protein targets. The function of this protein has not been studied in plants. A HUB1 gene, LpHUB1, was identified from serial analysis of gene expression data and cloned from perennial ryegrass. The expression of this gene was reported previously to be elevated in pastures during the summer and by drought stress in climate-controlled growth chambers. Here, pasture-type and turf-type transgenic perennial ryegrass plants overexpressing LpHUB1 showed improved drought tolerance, as evidenced by improved turf quality, maintenance of turgor and increased growth. Additional analyses revealed that the transgenic plants generally displayed higher relative water content, leaf water potential, and chlorophyll content and increased photosynthetic rate when subjected to drought stress. These results suggest HUB1 may play an important role in the tolerance of perennial ryegrass to abiotic stresses.
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Affiliation(s)
- Minesh Patel
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Susana Milla-Lewis
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Wanjun Zhang
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Kerry Templeton
- Pastoral Genomics, c/o ViaLactia Biosciences (NZ) Ltd/Fonterra, Auckland, New Zealand
| | - William C Reynolds
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Kim Richardson
- AgResearch Ltd, Grasslands Research Centre, Palmerston North, New Zealand
| | - Margaret Biswas
- Pastoral Genomics, c/o ViaLactia Biosciences (NZ) Ltd/Fonterra, Auckland, New Zealand
| | - Maria C Zuleta
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Ralph E Dewey
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Rongda Qu
- Department of Crop Science, North Carolina State University, Raleigh, NC, USA
| | - Puthigae Sathish
- Pastoral Genomics, c/o ViaLactia Biosciences (NZ) Ltd/Fonterra, Auckland, New Zealand
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Park SH, Chung PJ, Juntawong P, Bailey-Serres J, Kim YS, Jung H, Bang SW, Kim YK, Do Choi Y, Kim JK. Posttranscriptional control of photosynthetic mRNA decay under stress conditions requires 3' and 5' untranslated regions and correlates with differential polysome association in rice. PLANT PHYSIOLOGY 2012; 159:1111-24. [PMID: 22566494 PMCID: PMC3387698 DOI: 10.1104/pp.112.194928] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 05/02/2012] [Indexed: 05/18/2023]
Abstract
Abiotic stress, including drought, salinity, and temperature extremes, regulates gene expression at the transcriptional and posttranscriptional levels. Expression profiling of total messenger RNAs (mRNAs) from rice (Oryza sativa) leaves grown under stress conditions revealed that the transcript levels of photosynthetic genes are reduced more rapidly than others, a phenomenon referred to as stress-induced mRNA decay (SMD). By comparing RNA polymerase II engagement with the steady-state mRNA level, we show here that SMD is a posttranscriptional event. The SMD of photosynthetic genes was further verified by measuring the half-lives of the small subunit of Rubisco (RbcS1) and Chlorophyll a/b-Binding Protein1 (Cab1) mRNAs during stress conditions in the presence of the transcription inhibitor cordycepin. To discern any correlation between SMD and the process of translation, changes in total and polysome-associated mRNA levels after stress were measured. Total and polysome-associated mRNA levels of two photosynthetic (RbcS1 and Cab1) and two stress-inducible (Dehydration Stress-Inducible Protein1 and Salt-Induced Protein) genes were found to be markedly similar. This demonstrated the importance of polysome association for transcript stability under stress conditions. Microarray experiments performed on total and polysomal mRNAs indicate that approximately half of all mRNAs that undergo SMD remain polysome associated during stress treatments. To delineate the functional determinant(s) of mRNAs responsible for SMD, the RbcS1 and Cab1 transcripts were dissected into several components. The expressions of different combinations of the mRNA components were analyzed under stress conditions, revealing that both 3' and 5' untranslated regions are necessary for SMD. Our results, therefore, suggest that the posttranscriptional control of photosynthetic mRNA decay under stress conditions requires both 3' and 5' untranslated regions and correlates with differential polysome association.
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Affiliation(s)
- Su-Hyun Park
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Pil Joong Chung
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Piyada Juntawong
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Julia Bailey-Serres
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Youn Shic Kim
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Harin Jung
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Seung Woon Bang
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Yeon-Ki Kim
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Yang Do Choi
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
| | - Ju-Kon Kim
- School of Biotechnology and Environmental Engineering, Myongji University, Yongin 449–728, Korea (S.-H.P., P.J.C., Y.S.K., H.J., S.W.B., J.-K.K.); Laboratory of Plant Molecular Biology, The Rockefeller University, New York, New York 10065 (P.J.C.); Department of Botany and Plant Sciences, Center for Plant Cell Biology, University of California, Riverside, California 92521 (P.J., J.B.-S.); GreenGene Biotech, Inc., Myongji University, Yongin 449–728, Korea (Y.-K.K.); and School of Agricultural Biotechnology, Seoul National University, Seoul 151–921, Korea (Y.D.C.)
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Lee JM, Sathish P, Donaghy DJ, Roche JR. Impact of defoliation severity on photosynthesis, carbon metabolism and transport gene expression in perennial ryegrass. FUNCTIONAL PLANT BIOLOGY : FPB 2011; 38:808-817. [PMID: 32480938 DOI: 10.1071/fp11048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 06/09/2011] [Indexed: 06/11/2023]
Abstract
Defoliation severity affects grass regrowth. The changes to biological processes affecting regrowth induced by severe defoliation are not fully understood, nor have they been investigated at a molecular level in field-grown plants. Field-grown perennial ryegrass (Lolium perenne L.) plants were defoliated to 20, 40 or 60mm during winter. Throughout regrowth, transcript profiles of 17 genes involved in photosynthesis and carbon metabolism or transport were characterised in stubble and lamina tissue. Although defoliation to 20mm reduced residual lamina area and stubble water-soluble carbohydrate reserves compared with plants defoliated to 40 or 60mm, net herbage regrowth was not reduced. Transcript profiles indicated a potential compensatory mechanism that may have facilitated regrowth. At the one-leaf regrowth stage, plants defoliated to 20mm had greater abundance of photosynthesis-related gene transcripts (rca, rbcS1, rbcS2, fba, fbp and fnr) and 20% greater stubble total nitrogen than plants defoliated to 60mm. A greater capacity for photosynthesis in outer leaf sheaths may be one potential mechanism used by severely defoliated plants to compensate for the reduced residual lamina area; however, this premise requires further investigation.
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Affiliation(s)
- Julia M Lee
- DairyNZ Ltd, Private Bag 3221, Hamilton 3240, New Zealand
| | - Puthigae Sathish
- Pastoral Genomics, ViaLactia Biosciences (NZ) Ltd, PO Box 109185, Newmarket, Auckland 1149, New Zealand
| | - Daniel J Donaghy
- University of Tasmania, PO Box 3523, Burnie, Tas. 7320, Australia
| | - John R Roche
- DairyNZ Ltd, Private Bag 3221, Hamilton 3240, New Zealand
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