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Yang L, Yang X, Shen B, Jin J, Li L, Fan D, Xiaokelaiti S, Hao Q, Niu J. Effects of high-temperature stress on gene expression related to photosynthesis in two jujube ( Ziziphus jujuba Mill.) varieties. PLANT SIGNALING & BEHAVIOR 2024; 19:2357367. [PMID: 38775124 PMCID: PMC11139005 DOI: 10.1080/15592324.2024.2357367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/08/2024] [Indexed: 06/01/2024]
Abstract
Elevated temperatures critically impact crop growth, development, and yield, with photosynthesis being the most temperature-sensitive physiological process in plants. This study focused on assessing the photosynthetic response and genetic adaptation of two different heat-resistant jujube varieties 'Junzao' (J) and 'Fucuimi' (F), to high-temperature stress (42°C Day/30°C Night). Comparative analyses of leaf photosynthetic indices, microstructural changes, and transcriptome sequencing were conducted. Results indicated superior high-temperature adaptability in F, evidenced by alterations in leaf stomatal behavior - particularly in J, where defense cells exhibited significant water loss, shrinkage, and reduced stomatal opening, alongside a marked increase in stomatal density. Through transcriptome sequencing 13,884 differentially expressed genes (DEGs) were identified, significantly enriched in pathways related to plant-pathogen interactions, amino acid biosynthesis, starch and sucrose metabolism, and carbohydrate metabolism. Key findings include the identification of photosynthetic pathway related DEGs and HSFA1s as central regulators of thermal morphogenesis and heat stress response. Revealing their upregulation in F and downregulation in J. The results indicate that these genes play a crucial role in improving heat tolerance in F. This study unveils critical photosynthetic genes involved in heat stress, providing a theoretical foundation for comprehending the molecular mechanisms underlying jujube heat tolerance.
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Affiliation(s)
- Lei Yang
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, China
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Xiaojuan Yang
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Bingqi Shen
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Juan Jin
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Lili Li
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Dingyu Fan
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Subina Xiaokelaiti
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Qing Hao
- Institute of Horticulture Crops, Xinjiang Academy of Agricultural Sciences, Urumqi, Xinjiang, China
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Scientific Observing and Experimental Station of Pomology (Xinjiang), Urumqi, Xinjiang, China
| | - Jianxin Niu
- Department of Horticulture, College of Agriculture, Shihezi University, Shihezi, Xinjiang, China
- Xinjiang Production and Construction Corps Key Laboratory of Special Fruits and Vegetables Cultivation Physiology and Germplasm Resources Utilization, Shihezi, Xinjiang, China
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Bakery A, Vraggalas S, Shalha B, Chauhan H, Benhamed M, Fragkostefanakis S. Heat stress transcription factors as the central molecular rheostat to optimize plant survival and recovery from heat stress. THE NEW PHYTOLOGIST 2024; 244:51-64. [PMID: 39061112 DOI: 10.1111/nph.20017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024]
Abstract
Heat stress transcription factors (HSFs) are the core regulators of the heat stress (HS) response in plants. HSFs are considered as a molecular rheostat: their activities define the response intensity, incorporating information about the environmental temperature through a network of partner proteins. A prompted activation of HSFs is required for survival, for example the de novo synthesis of heat shock proteins. Furthermore, a timely attenuation of the stress response is necessary for the restoration of cellular functions and recovery from stress. In an ever-changing environment, the balance between thermotolerance and developmental processes such as reproductive fitness highlights the importance of a tightly tuned response. In many cases, the response is described as an ON/OFF mode, while in reality, it is very dynamic. This review compiles recent findings to update existing models about the HSF-regulated HS response and address two timely questions: How do plants adjust the intensity of cellular HS response corresponding to the temperature they experience? How does this adjustment contribute to the fine-tuning of the HS and developmental networks? Understanding these processes is crucial not only for enhancing our basic understanding of plant biology but also for developing strategies to improve crop resilience and productivity under stressful conditions.
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Affiliation(s)
- Ayat Bakery
- Institute of Molecular Biosciences, Plant Cell and Molecular Biology, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
- Botany Department, Faculty of Science, Ain Shams University, 11517, Cairo, Egypt
| | - Stavros Vraggalas
- Institute of Molecular Biosciences, Plant Cell and Molecular Biology, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
| | - Boushra Shalha
- Institute of Molecular Biosciences, Plant Cell and Molecular Biology, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
| | - Harsh Chauhan
- Institute of Molecular Biosciences, Plant Cell and Molecular Biology, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, Uttarakhand, India
| | - Moussa Benhamed
- Université de Paris Cité, Institute of Plant Sciences Paris-Saclay (IPS2), F-91190, Gif-sur-Yvette, France
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, 91405, France
- Institut Universitaire de France (IUF), Orsay, 91405, France
| | - Sotirios Fragkostefanakis
- Institute of Molecular Biosciences, Plant Cell and Molecular Biology, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany
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Zhou M, Ferl RJ, Paul AL. Light has a principal role in the Arabidopsis transcriptomic response to the spaceflight environment. NPJ Microgravity 2024; 10:82. [PMID: 39107298 PMCID: PMC11303767 DOI: 10.1038/s41526-024-00417-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/11/2024] [Indexed: 08/10/2024] Open
Abstract
The Characterizing Arabidopsis Root Attractions (CARA) spaceflight experiment provides comparative transcriptome analyses of plants grown in both light and dark conditions within the same spaceflight. CARA compared three genotypes of Arabidopsis grown in ambient light and in the dark on board the International Space Station (ISS); Col-0, Ws, and phyD, a phytochrome D mutant in the Col-0 background. In all genotypes, leaves responded to spaceflight with a higher number of differentially expressed genes (DEGs) than root tips, and each genotype displayed distinct light / dark transcriptomic patterns that were unique to the spaceflight environment. The Col-0 leaves exhibited a substantial dichotomy, with ten-times as many spaceflight DEGs exhibited in light-grown plants versus dark-grown plants. Although the total number of DEGs in phyD leaves is not very different from Col-0, phyD altered the manner in which light-grown leaves respond to spaceflight, and many genes associated with the physiological adaptation of Col-0 to spaceflight were not represented. This result is in contrast to root tips, where a previous CARA study showed that phyD substantially reduced the number of DEGs. There were few DEGs, but a series of space-altered gene categories, common to genotypes and lighting conditions. This commonality indicates that key spaceflight genes are associated with signal transduction for light, defense, and oxidative stress responses. However, these key signaling pathways enriched from DEGs showed opposite regulatory direction in response to spaceflight under light and dark conditions, suggesting a complex interaction between light as a signal, and light-signaling genes in acclimation to spaceflight.
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Affiliation(s)
- Mingqi Zhou
- Department of Horticultural Sciences, University of Florida, 2550 Hull Road, Fifield Hall, Gainesville, FL, 32611, USA
| | - Robert J Ferl
- Department of Horticultural Sciences, University of Florida, 2550 Hull Road, Fifield Hall, Gainesville, FL, 32611, USA.
- UF Research, University of Florida, 1523 Union Rd, Grinter Hall, Gainesville, FL, 32611, USA.
| | - Anna-Lisa Paul
- Department of Horticultural Sciences, University of Florida, 2550 Hull Road, Fifield Hall, Gainesville, FL, 32611, USA.
- Interdisciplinary Center for Biotechnology Research, University of Florida, 2033 Mowry Road, Gainesville, FL, 32610, USA.
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Toribio R, Navarro A, Castellano MM. HOP stabilizes the HSFA1a and plays a main role in the onset of thermomorphogenesis. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39007522 DOI: 10.1111/pce.15036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 06/26/2024] [Accepted: 07/02/2024] [Indexed: 07/16/2024]
Abstract
Living organisms have the capacity to respond to environmental stimuli, including warm conditions. Upon sensing mild temperature, plants launch a transcriptional response that promotes morphological changes, globally known as thermomorphogenesis. This response is orchestrated by different hormonal networks and by the activity of different transcription factors, including the heat shock factor A1 (HSFA1) family. Members of this family interact with heat shock protein 70 (HSP70) and heat shock protein 90 (HSP90); however, the effect of this binding on the regulation of HSFA1 activity or of the role of cochaperones, such as the HSP70-HSP90 organizing protein (HOP) on HSFA1 regulation, remains unknown. Here, we show that AtHOPs are involved in the folding and stabilization of the HSFA1a and are required for the onset of the transcriptional response associated to thermomorphogenesis. Our results demonstrate that the three members of the AtHOP family bind in vivo to the HSFA1a and that the expression of multiple HSFA1a-responsive-responsive genes is altered in the hop1 hop2 hop3 mutant under warm temperature. Interestingly, HSFA1a is accumulated at lower levels in the hop1 hop2 hop3 mutant, while control levels are recovered in the presence of the proteasome inhibitor MG132 or the synthetic chaperone tauroursodeoxycholic acid (TUDCA). This uncovers the HSFA1a as a client of HOP complexes in plants and reveals the participation of HOPs in HSFA1a stability.
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Affiliation(s)
- René Toribio
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-CSIC (INIA/CSIC), Campus de Montegancedo, Pozuelo de Alarcón, Madrid, Spain
| | - Aurora Navarro
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-CSIC (INIA/CSIC), Campus de Montegancedo, Pozuelo de Alarcón, Madrid, Spain
| | - M Mar Castellano
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria-CSIC (INIA/CSIC), Campus de Montegancedo, Pozuelo de Alarcón, Madrid, Spain
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5
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Raturi V, Zinta G. HSFA1 heat shock factors integrate warm temperature and heat signals in plants. TRENDS IN PLANT SCIENCE 2024:S1360-1385(24)00178-X. [PMID: 39013704 DOI: 10.1016/j.tplants.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/30/2024] [Accepted: 07/03/2024] [Indexed: 07/18/2024]
Abstract
Warm temperatures and heat stress trigger distinct plant responses. Recently, Li et al. and Tan et al. identified HSFA1 heat shock transcription factors (HSFs) as central gatekeepers of high-temperature signaling, integrating warm temperature and heat shock responses (HSRs) in arabidopsis (Arabidopsis thaliana). HSFA1d stabilizes phytochrome-interacting factor 4 (PIF4) and activates HSFA2, establishing a crosstalk between thermomorphogenesis and thermotolerance.
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Affiliation(s)
- Vidhi Raturi
- Integrative Plant AdaptOmics Lab (iPAL), Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur (CSIR-IHBT), HP, 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Gaurav Zinta
- Integrative Plant AdaptOmics Lab (iPAL), Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur (CSIR-IHBT), HP, 176061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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6
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Ruan M, Zhao H, Wen Y, Chen H, He F, Hou X, Song X, Jiang H, Ruan YL, Wu L. The complex transcriptional regulation of heat stress response in maize. STRESS BIOLOGY 2024; 4:24. [PMID: 38668992 PMCID: PMC11052759 DOI: 10.1007/s44154-024-00165-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/01/2024] [Indexed: 04/29/2024]
Abstract
As one of the most important food and feed crops worldwide, maize suffers much more tremendous damages under heat stress compared to other plants, which seriously inhibits plant growth and reduces productivity. To mitigate the heat-induced damages and adapt to high temperature environment, plants have evolved a series of molecular mechanisms to sense, respond and adapt high temperatures and heat stress. In this review, we summarized recent advances in molecular regulations underlying high temperature sensing, heat stress response and memory in maize, especially focusing on several important pathways and signals in high temperature sensing, and the complex transcriptional regulation of ZmHSFs (Heat Shock Factors) in heat stress response. In addition, we highlighted interactions between ZmHSFs and several epigenetic regulation factors in coordinately regulating heat stress response and memory. Finally, we laid out strategies to systematically elucidate the regulatory network of maize heat stress response, and discussed approaches for breeding future heat-tolerance maize.
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Affiliation(s)
- Mingxiu Ruan
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Heng Zhao
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Yujing Wen
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Hao Chen
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Feng He
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Xingbo Hou
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Xiaoqin Song
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Haiyang Jiang
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China
| | - Yong-Ling Ruan
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Horticulture, Northwest A&F University, Yangling, 712100, China.
- School of Agronomy, Anhui Agricultural University, Hefei, 230036, China.
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia.
| | - Leiming Wu
- The National Engineering Laboratory of Crop Resistance Breeding, School of Life Sciences, Anhui Agricultural University, Hefei, 230036, China.
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Tan W, Zhou P, Huang X, Liao R, Wang X, Wu Y, Ni Z, Shi T, Yu X, Zhang H, Ma C, Gao F, Ma Y, Bai Y, Hayat F, Omondi OK, Coulibaly D, Gao Z. Haplotype-resolved genome of Prunus zhengheensis provides insight into its evolution and low temperature adaptation in apricot. HORTICULTURE RESEARCH 2024; 11:uhae103. [PMID: 38689698 PMCID: PMC11059810 DOI: 10.1093/hr/uhae103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/31/2024] [Indexed: 05/02/2024]
Abstract
Prunus zhengheensis, an extremely rare population of apricots, originated in warm South-East China and is an excellent material for genetic breeding. However, most apricots and two related species (P. sibirica, P. mandshurica) are found in the cold northern regions in China and the mechanism of their distribution is still unclear. In addition, the classification status of P. zhengheensis is controversial. Thus, we generated a high-quality haplotype-resolved genome for P. zhengheensis, exploring key genetic variations in its adaptation and the causes of phylogenetic incongruence. We found extensive phylogenetic discordances between the nuclear and organelle phylogenies of P. zhengheensis, which could be explained by incomplete lineage sorting. A 242.22-Mb pan-genome of the Armeniaca section was developed with 13 chromosomal genomes. Importantly, we identified a 566-bp insertion in the promoter of the HSFA1d gene in apricot and showed that the activity of the HSFA1d promoter increased under low temperatures. In addition, HSFA1d overexpression in Arabidopsis thaliana indicated that HSFA1d positively regulated plant growth under chilling. Therefore, we hypothesized that the insertion in the promoter of HSFA1d in apricot improved its low-temperature adaptation, allowing it to thrive in relatively cold locations. The findings help explain the weather adaptability of Armeniaca plants.
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Affiliation(s)
- Wei Tan
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Pengyu Zhou
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiao Huang
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ruyu Liao
- Institute of Fruit, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Xiaoan Wang
- Institute of Fruit, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Yaoyao Wu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhaojun Ni
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Ting Shi
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaqing Yu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Huiqin Zhang
- Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chengdong Ma
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Feng Gao
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yufan Ma
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yang Bai
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Faisal Hayat
- Department of Pomology, College of Horticulture, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Ouma Kenneth Omondi
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Department of Crops, Horticulture and Soils, Faculty of Agriculture, Egerton University, P.O. Box 536, Egerton 20115, Kenya
| | - Daouda Coulibaly
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Department of Agricultural Sciences and Techniques-Horticulture, Rural Polytechnic Institute for Training and Applied Research (IPR/IFRA) of Katibougou, Koulikoro B.P.224, Mali
| | - Zhihong Gao
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
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Zhou N, Li C, Xie W, Liang N, Wang J, Wang B, Wu J, Shen WH, Liu B, Dong A. Histone methylation readers MRG1/2 interact with PIF4 to promote thermomorphogenesis in Arabidopsis. Cell Rep 2024; 43:113726. [PMID: 38308844 DOI: 10.1016/j.celrep.2024.113726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/14/2023] [Accepted: 01/15/2024] [Indexed: 02/05/2024] Open
Abstract
Warm ambient conditions induce thermomorphogenesis and affect plant growth and development. However, the chromatin regulatory mechanisms involved in thermomorphogenesis remain largely obscure. In this study, we show that the histone methylation readers MORF-related gene 1 and 2 (MRG1/2) are required to promote hypocotyl elongation in response to warm ambient conditions. A transcriptome sequencing analysis indicates that MRG1/2 and phytochrome interacting factor 4 (PIF4) coactivate a number of thermoresponsive genes, including YUCCA8, which encodes a rate-limiting enzyme in the auxin biosynthesis pathway. Additionally, MRG2 physically interacts with PIF4 to bind to thermoresponsive genes and enhances the H4K5 acetylation of the chromatin of target genes in a PIF4-dependent manner. Furthermore, MRG2 competes with phyB for binding to PIF4 and stabilizes PIF4 in planta. Our study indicates that MRG1/2 activate thermoresponsive genes by inducing histone acetylation and stabilizing PIF4 in Arabidopsis.
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Affiliation(s)
- Nana Zhou
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Chengzhang Li
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Wenhao Xie
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Ning Liang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Jiachen Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Baihui Wang
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Jiabing Wu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China
| | - Wen-Hui Shen
- Institut de Biologie Moléculaire des Plantes, CNRS, Université de Strasbourg, 12 rue du Général Zimmer, 67084 Strasbourg Cédex, France
| | - Bing Liu
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China; Department of Energy, Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, WI 53706, USA.
| | - Aiwu Dong
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center for Genetics and Development, Department of Biochemistry and Biophysics, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China.
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