1
|
Michael R, Ranjan A, Gautam S, Trivedi PK. HY5 and PIF antagonistically regulate HMGR expression and sterol biosynthesis in Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 346:112168. [PMID: 38914157 DOI: 10.1016/j.plantsci.2024.112168] [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: 02/01/2024] [Revised: 06/08/2024] [Accepted: 06/18/2024] [Indexed: 06/26/2024]
Abstract
Secondary metabolites play multiple crucial roles in plants by modulating various regulatory networks. The biosynthesis of these compounds is unique to each species and is intricately controlled by a range of developmental and environmental factors. While light's role in certain secondary metabolites is evident, its impact on sterol biosynthesis remains unclear. Previous studies indicate that ELONGATED HYPOCOTYL5 (HY5), a bZIP transcription factor, is pivotal in skotomorphogenesis to photomorphogenesis transition. Additionally, PHYTOCHROME INTERACTING FACTORs (PIFs), bHLH transcription factors, act as negative regulators. To unveil the light-dependent regulation of the mevalonic acid (MVA) pathway, a precursor for sterol biosynthesis, mutants of light signaling components, specifically hy5-215 and the pifq quadruple mutant (pif 1,3,4, and 5), were analyzed in Arabidopsis thaliana. Gene expression analysis in wild-type and mutants implicates HY5 and PIFs in regulating sterol biosynthesis genes. DNA-protein interaction analysis confirms their interaction with key genes like AtHMGR2 in the rate-limiting pathway. Results strongly suggest HY5 and PIFs' pivotal role in light-dependent MVA pathway regulation, including the sterol biosynthetic branch, in Arabidopsis, highlighting a diverse array of light signaling components finely tuning crucial growth pathways.
Collapse
Affiliation(s)
- Rahul Michael
- CSIR-National Botanical Research Institute (CSIR-NBRI), Rana Pratap Marg, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), CSIR, Ghaziabad 201002, India
| | - Avriti Ranjan
- Academy of Scientific and Innovative Research (AcSIR), CSIR, Ghaziabad 201002, India; Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Picnic Spot Road, Lucknow 226015, India
| | - Swati Gautam
- CSIR-National Botanical Research Institute (CSIR-NBRI), Rana Pratap Marg, Lucknow 226001, India; Academy of Scientific and Innovative Research (AcSIR), CSIR, Ghaziabad 201002, India
| | - Prabodh Kumar Trivedi
- Academy of Scientific and Innovative Research (AcSIR), CSIR, Ghaziabad 201002, India; Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Picnic Spot Road, Lucknow 226015, India.
| |
Collapse
|
2
|
Fang K, Yao X, Tian Y, He Y, Lin Y, Lei W, Peng S, Pan G, Shi H, Zhang D, Lin H. Ubiquitin-specific protease UBP14 stabilizes HY5 by deubiquitination to promote photomorphogenesis in Arabidopsis thaliana. Proc Natl Acad Sci U S A 2024; 121:e2404883121. [PMID: 39102535 DOI: 10.1073/pnas.2404883121] [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: 03/08/2024] [Accepted: 06/12/2024] [Indexed: 08/07/2024] Open
Abstract
Transcription factor ELONGATED HYPOCOTYL5 (HY5) is the central hub for seedling photomorphogenesis. E3 ubiquitin (Ub) ligase CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) inhibits HY5 protein accumulation through ubiquitination. However, the process of HY5 deubiquitination, which antagonizes E3 ligase-mediated ubiquitination to maintain HY5 homeostasis has never been studied. Here, we identified that Arabidopsis thaliana deubiquitinating enzyme, Ub-SPECIFIC PROTEASE 14 (UBP14) physically interacts with HY5 and enhances its protein stability by deubiquitination. The da3-1 mutant lacking UBP14 function exhibited a long hypocotyl phenotype, and UBP14 deficiency led to the failure of rapid accumulation of HY5 during dark to light. In addition, UBP14 preferred to stabilize nonphosphorylated form of HY5 which is more readily bound to downstream target genes. HY5 promoted the expression and protein accumulation of UBP14 for positive feedback to facilitate photomorphogenesis. Our findings thus established a mechanism by which UBP14 stabilizes HY5 protein by deubiquitination to promote photomorphogenesis in A. thaliana.
Collapse
Affiliation(s)
- Ke Fang
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Xiuhong Yao
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
- Solid-State Fermentation Resource Utilization Key Laboratory of Sichuan Province, Department of Agriculture Forestry and Food Engineering, Yibin University, Yibin 644000, China
| | - Yu'ang Tian
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Yang He
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Yingru Lin
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Wei Lei
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Sihan Peng
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Guohui Pan
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Haoyu Shi
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Dawei Zhang
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| | - Honghui Lin
- Ministry of Education Key Laboratory for Bio-Resource and Eco-Environment, College of Life Sciences, State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610064, China
| |
Collapse
|
3
|
Zhong W, Wu L, Li Y, Li X, Wang J, Pan J, Zhu S, Fang S, Yao J, Zhang Y, Chen W. GhSBI1, a CUP-SHAPED COTYLEDON 2 homologue, modulates branch internode elongation in cotton. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 39058556 DOI: 10.1111/pbi.14439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/18/2024] [Accepted: 07/07/2024] [Indexed: 07/28/2024]
Abstract
Branch length is an important plant architecture trait in cotton (Gossypium) breeding. Development of cultivars with short branch has been proposed as a main object to enhance cotton yield potential, because they are suitable for high planting density. Here, we report the molecular cloning and characterization of a semi-dominant quantitative trait locus, Short Branch Internode 1(GhSBI1), which encodes a NAC transcription factor homologous to CUP-SHAPED COTYLEDON 2 (CUC2) and is regulated by microRNA ghr-miR164. We demonstrate that a point mutation found in sbi1 mutants perturbs ghr-miR164-directed regulation of GhSBI1, resulting in an increased expression level of GhSBI1. The sbi1 mutant was sensitive to exogenous gibberellic acid (GA) treatments. Overexpression of GhSBI1 inhibited branch internode elongation and led to the decreased levels of bioactive GAs. In addition, gene knockout analysis showed that GhSBI1 is required for the maintenance of the boundaries of multiple tissues in cotton. Transcriptome analysis revealed that overexpression of GhSBI1 affects the expression of plant hormone signalling-, axillary meristems initiation-, and abiotic stress response-related genes. GhSBI1 interacted with GAIs, the DELLA repressors of GA signalling. GhSBI1 represses expression of GA signalling- and cell elongation-related genes by directly targeting their promoters. Our work thus provides new insights into the molecular mechanisms for branch length and paves the way for the development of elite cultivars with suitable plant architecture in cotton.
Collapse
Affiliation(s)
- Weiping Zhong
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Lanxin Wu
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Yan Li
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China
| | - Xiaxuan Li
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Junyi Wang
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Jingwen Pan
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
| | - Shouhong Zhu
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China
| | - Shentao Fang
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China
| | - Jinbo Yao
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China
| | - Yongshan Zhang
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Wei Chen
- State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, China
- Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji, Xinjiang, China
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| |
Collapse
|
4
|
Zhang B, Zhang S, Wu Y, Li Y, Kong L, Wu R, Zhao M, Liu W, Yu H. Defining context-dependent m 6A RNA methylomes in Arabidopsis. Dev Cell 2024:S1534-5807(24)00390-3. [PMID: 39025060 DOI: 10.1016/j.devcel.2024.06.012] [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: 01/10/2024] [Revised: 05/02/2024] [Accepted: 06/19/2024] [Indexed: 07/20/2024]
Abstract
N6-Methyladenosine (m6A) prevalently occurs on cellular RNA across almost all kingdoms of life. It governs RNA fate and is essential for development and stress responses. However, the dynamic, context-dependent m6A methylomes across tissues and in response to various stimuli remain largely unknown in multicellular organisms. Here, we generate a comprehensive census that identifies m6A methylomes in 100 samples during development or following exposure to various external conditions in Arabidopsis thaliana. We demonstrate that m6A is a suitable biomarker to reflect the developmental lineage, and that various stimuli rapidly affect m6A methylomes that constitute the regulatory network required for an effective response to the stimuli. Integrative analyses of the census and its correlation with m6A regulators identify multiple layers of regulation on highly context-dependent m6A modification in response to diverse developmental and environmental stimuli, providing insights into m6A modification dynamics in the myriad contexts of multicellular organisms.
Collapse
Affiliation(s)
- Bin Zhang
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore
| | - Songyao Zhang
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Yujin Wu
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore; Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Yan Li
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Lingyao Kong
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore; College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Ranran Wu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore; Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Ming Zhao
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore; Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore
| | - Wei Liu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore; Institute of Crop Germplasm Resources, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Hao Yu
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore 117604, Singapore; Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore 117543, Singapore.
| |
Collapse
|
5
|
Qin L, Kong F, Wei L, Cui M, Li J, Zhu C, Liu Y, Xia G, Liu S. Maize ZmSRO1e promotes mesocotyl elongation and deep sowing tolerance by inhibiting the activity of ZmbZIP61. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024. [PMID: 38874204 DOI: 10.1111/jipb.13714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 05/14/2024] [Indexed: 06/15/2024]
Abstract
Deep sowing is a traditional method for drought resistance in maize production, and mesocotyl elongation is strongly associated with the ability of maize to germinate from deep soil. However, little is known about the functional genes and mechanisms regulating maize mesocotyl elongation. In the present study, we identified a plant-specific SIMILAR TO RCD-ONE (SRO) protein family member, ZmSRO1e, involved in maize mesocotyl elongation. The expression of ZmSRO1e is strongly inhibited upon transfer from dark to white light. The loss-of-function zmsro1e mutant exhibited a dramatically shorter mesocotyl than the wild-type in both constant light and darkness, while overexpression of ZmSRO1e significantly promoted mesocotyl elongation, indicating that ZmSRO1e positively regulates mesocotyl elongation. We showed that ZmSRO1e physically interacted with ZmbZIP61, an ortholog of Arabidopsis ELONGATED HYPOCOTYL 5 (HY5) and showed a function similar to that of HY5 in regulating photomorphogenesis. We found that ZmSRO1e repressed the transcriptional activity of ZmbZIP61 toward target genes involved in the regulation of cell expansion, such as ZmEXPB4 and ZmEXPB6, by interfering with the binding of ZmbZIP61 to the promoters of target genes. Our results provide a new understanding of the mechanism by which SRO regulates photomorphogenesis and highlight its potential application in deep sowing-resistant breeding.
Collapse
Affiliation(s)
- Lumin Qin
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
- Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei, 230031, Anhui Province, China
| | - Fangfang Kong
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Lin Wei
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Minghan Cui
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Jianhang Li
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Chen Zhu
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Yue Liu
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Guangmin Xia
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| | - Shuwei Liu
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University, Qingdao, 266237, China
| |
Collapse
|
6
|
Wu T, Liu Z, Yu T, Zhou R, Yang Q, Cao R, Nie F, Ma X, Bai Y, Song X. Flowering genes identification, network analysis, and database construction for 837 plants. HORTICULTURE RESEARCH 2024; 11:uhae013. [PMID: 38585015 PMCID: PMC10995624 DOI: 10.1093/hr/uhae013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/02/2024] [Indexed: 04/09/2024]
Abstract
Flowering is one of the most important biological phenomena in the plant kingdom, which not only has important ecological significance, but also has substantial horticultural ornamental value. In this study, we undertook an exhaustive review of the advancements in our understanding of plant flowering genes. We delved into the identification and conducted comparative analyses of flowering genes across virtually all sequenced angiosperm plant genomes. Furthermore, we established an extensive angiosperm flowering atlas, encompassing a staggering 183 720 genes across eight pathways, along with 10 155 ABCDE mode genes, which play a pivotal role in plant flowering regulation. Through the examination of expression patterns, we unveiled the specificities of these flowering genes. An interaction network between flowering genes of the ABCDE model and their corresponding upstream genes offered a blueprint for comprehending their regulatory mechanisms. Moreover, we predicted the miRNA and target genes linked to the flowering processes of each species. To culminate our efforts, we have built a user-friendly web interface, named the Plant Flowering-time Gene Database (PFGD), accessible at http://pfgd.bio2db.com/. We firmly believe that this database will serve as a cornerstone in the global research community, facilitating the in-depth exploration of flowering genes in the plant kingdom. In summation, this pioneering endeavor represents the first comprehensive collection and comparative analysis of flowering genes in plants, offering valuable resources for the study of plant flowering genetics.
Collapse
Affiliation(s)
- Tong Wu
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Zhuo Liu
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Tong Yu
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Rong Zhou
- Department of Food Science, Aarhus University, Aarhus 8200, Denmark
| | - Qihang Yang
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Rui Cao
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Fulei Nie
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Xiao Ma
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
- College of Horticultural Science & Technology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei 066600, China
| | - Yun Bai
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| | - Xiaoming Song
- School of Life Sciences/Library, North China University of Science and Technology, Tangshan, Hebei 063210, China
| |
Collapse
|
7
|
Wang Y, Wang J, Sarwar R, Zhang W, Geng R, Zhu KM, Tan XL. Research progress on the physiological response and molecular mechanism of cold response in plants. FRONTIERS IN PLANT SCIENCE 2024; 15:1334913. [PMID: 38352650 PMCID: PMC10861734 DOI: 10.3389/fpls.2024.1334913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/10/2024] [Indexed: 02/16/2024]
Abstract
Low temperature is a critical environmental stress factor that restricts crop growth and geographical distribution, significantly impacting crop quality and yield. When plants are exposed to low temperatures, a series of changes occur in their external morphology and internal physiological and biochemical metabolism. This article comprehensively reviews the alterations and regulatory mechanisms of physiological and biochemical indices, such as membrane system stability, redox system, fatty acid content, photosynthesis, and osmoregulatory substances, in response to low-temperature stress in plants. Furthermore, we summarize recent research on signal transduction and regulatory pathways, phytohormones, epigenetic modifications, and other molecular mechanisms mediating the response to low temperatures in higher plants. In addition, we outline cultivation practices to improve plant cold resistance and highlight the cold-related genes used in molecular breeding. Last, we discuss future research directions, potential application prospects of plant cold resistance breeding, and recent significant breakthroughs in the research and application of cold resistance mechanisms.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Xiao-Li Tan
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| |
Collapse
|
8
|
Jiang B, Zhong Z, Su J, Zhu T, Yueh T, Bragasin J, Bu V, Zhou C, Lin C, Wang X. Co-condensation with photoexcited cryptochromes facilitates MAC3A to positively control hypocotyl growth in Arabidopsis. SCIENCE ADVANCES 2023; 9:eadh4048. [PMID: 37556549 PMCID: PMC10411877 DOI: 10.1126/sciadv.adh4048] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/06/2023] [Indexed: 08/11/2023]
Abstract
Cryptochromes (CRYs) are blue light receptors that mediate plant photoresponses through regulating gene expressions. We recently reported that Arabidopsis CRY2 could form light-elicited liquid condensates to control RNA methylation. However, whether CRY2 condensation is involved in other gene expression-regulatory processes remains unclear. Here, we show that MOS4-associated complex subunits 3A and 3B (MAC3A/3B) are CRY-interacting proteins and assembled into nuclear CRY condensates. mac3a3b double mutants exhibit hypersensitive photoinhibition of hypocotyl elongation, suggesting that MAC3A/3B positively control hypocotyl growth. We demonstrate the noncanonical activity of MAC3A as a DNA binding protein that modulates transcription. Genome-wide mapping of MAC3A-binding sites reveals that blue light enhances the association of MAC3A with its DNA targets, which requires CRYs. Further evidence indicates that MAC3A and ELONGATED HYPOCOTYL 5 (HY5) occupy overlapping genomic regions and compete for the same targets. These results argue that photocondensation of CRYs fine-tunes light-responsive hypocotyl growth by balancing the opposed effects of HY5 and MAC3A.
Collapse
Affiliation(s)
- Bochen Jiang
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
| | - Zhenhui Zhong
- State Key Laboratory for Ecological Pest Control of Fujian and Taiwan Crops, College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jun Su
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tengfei Zhu
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences at Weifang, Weifang, Shandong 261325, China
| | - Timothy Yueh
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
| | - Jielena Bragasin
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
| | - Victoria Bu
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
| | - Charles Zhou
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
| | - Chentao Lin
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA 90095, USA
- Basic Forestry and Proteomics Research Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xu Wang
- Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences at Weifang, Weifang, Shandong 261325, China
| |
Collapse
|
9
|
Sorkin ML, Tzeng SC, King S, Romanowski A, Kahle N, Bindbeutel R, Hiltbrunner A, Yanovsky MJ, Evans BS, Nusinow DA. COLD REGULATED GENE 27 and 28 Antagonize the Transcriptional Activity of the RVE8/LNK1/LNK2 Circadian Complex. PLANT PHYSIOLOGY 2023:kiad210. [PMID: 37017001 DOI: 10.1093/plphys/kiad210] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 03/01/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Many molecular and physiological processes in plants occur at a specific time of day. These daily rhythms are coordinated in part by the circadian clock, a timekeeper that uses daylength and temperature to maintain rhythms of approximately 24 hours in various clock-regulated phenotypes. The circadian MYB-like transcription factor REVEILLE 8 (RVE8) interacts with its transcriptional coactivators NIGHT LIGHT INDUCIBLE AND CLOCK REGULATED 1 (LNK1) and LNK2 to promote the expression of evening-phased clock genes and cold tolerance factors. While genetic approaches have commonly been used to discover connections within the clock and between clock elements and other pathways, here we used affinity purification coupled with mass spectrometry to identify time-of-day-specific protein interactors of the RVE8-LNK1/LNK2 complex in Arabidopsis (Arabidopsis thaliana). Among the interactors of RVE8/LNK1/LNK2 were COLD REGULATED GENE 27 (COR27) and COR28, which coprecipitated in an evening-specific manner. In addition to COR27 and COR28, we found an enrichment of temperature-related interactors that led us to establish a previously uncharacterized role for LNK1 and LNK2 in temperature entrainment of the clock. We established that RVE8, LNK1, and either COR27 or COR28 form a tripartite complex in yeast (Saccharomyces cerevisiae) and that the effect of this interaction in planta serves to antagonize transcriptional activation of RVE8 target genes, potentially through mediating RVE8 protein degradation in the evening. Together, these results illustrate how a proteomic approach can be used to identify time-of-day-specific protein interactions. Discovery of the RVE8-LNK-COR protein complex indicates a previously unknown regulatory mechanism for circadian and temperature signaling pathways.
Collapse
Affiliation(s)
- Maria L Sorkin
- Donald Danforth Plant Science Center, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Stefanie King
- Donald Danforth Plant Science Center, St. Louis, MO, USA
- Division of Biology and Biomedical Sciences, Washington University in St. Louis, St. Louis, MO, USA
| | - Andrés Romanowski
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Nikolai Kahle
- Institute of Biology II, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | | | - Andreas Hiltbrunner
- Institute of Biology II, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
| | - Marcelo J Yanovsky
- Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | | | | |
Collapse
|
10
|
Huang Y, Qian C, Lin J, Antwi-Boasiako A, Wu J, Liu Z, Mao Z, Zhong X. CcNAC1 by Transcriptome Analysis Is Involved in Sudan Grass Secondary Cell Wall Formation as a Positive Regulator. Int J Mol Sci 2023; 24:ijms24076149. [PMID: 37047127 PMCID: PMC10094045 DOI: 10.3390/ijms24076149] [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: 02/03/2023] [Revised: 03/09/2023] [Accepted: 03/18/2023] [Indexed: 04/14/2023] Open
Abstract
Sudan grass is a high-quality forage of sorghum. The degree of lignification of Sudan grass is the main factor affecting its digestibility in ruminants such as cattle and sheep. Almost all lignocellulose in Sudan grass is stored in the secondary cell wall, but the mechanism and synthesis of the secondary cell wall in Sudan grass is still unclear. In order to study the mechanism of secondary cell wall synthesis in Sudan grass, we used an in vitro induction system of Sudan grass secondary cell wall. Through transcriptome sequencing, it was found that the NAC transcription factor CcNAC1 gene was related to the synthesis of the Sudan grass secondary cell wall. This study further generated CcNAC1 overexpression lines of Arabidopsis to study CcNAC1 gene function in secondary cell wall synthesis. It was shown that the overexpression of the CcNAC1 gene can significantly increase lignin content in Arabidopsis lines. Through subcellular localization analysis, CcNAC1 genes could be expressed in the nucleus of a plant. In addition, we used yeast two-hybrid screening to find 26 proteins interacting with CcNAC1. GO and KEGG analysis showed that CcNAC1 relates to the metabolic pathways and biosynthesis of secondary metabolites. In summary, the synthesis of secondary cell wall of Sudan grass can be regulated by CcNAC1.
Collapse
Affiliation(s)
- Yanzhong Huang
- National Forage Breeding Innovation Base (JAAS), Key Laboratory for Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Chen Qian
- National Forage Breeding Innovation Base (JAAS), Key Laboratory for Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jianyu Lin
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Augustine Antwi-Boasiako
- National Center for Soybean Improvement, Key Laboratory of Biology and Genetics and Breeding for Soybean, Ministry of Agriculture, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
- Crops Research Institute, Council for Scientific and Industrial Research, Kumasi P.O. Box 3785, Ghana
| | - Juanzi Wu
- National Forage Breeding Innovation Base (JAAS), Key Laboratory for Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Zhiwei Liu
- National Forage Breeding Innovation Base (JAAS), Key Laboratory for Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Zhengfeng Mao
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoxian Zhong
- National Forage Breeding Innovation Base (JAAS), Key Laboratory for Saline-Alkali Soil Improvement and Utilization (Coastal Saline-Alkali Lands), Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| |
Collapse
|
11
|
Su H, Tan C, Liu Y, Chen X, Li X, Jones A, Zhu Y, Song Y. Physiology and Molecular Breeding in Sustaining Wheat Grain Setting and Quality under Spring Cold Stress. Int J Mol Sci 2022; 23:ijms232214099. [PMID: 36430598 PMCID: PMC9693015 DOI: 10.3390/ijms232214099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/17/2022] Open
Abstract
Spring cold stress (SCS) compromises the reproductive growth of wheat, being a major constraint in achieving high grain yield and quality in winter wheat. To sustain wheat productivity in SCS conditions, breeding cultivars conferring cold tolerance is key. In this review, we examine how grain setting and quality traits are affected by SCS, which may occur at the pre-anthesis stage. We have investigated the physiological and molecular mechanisms involved in floret and spikelet SCS tolerance. It includes the protective enzymes scavenging reactive oxygen species (ROS), hormonal adjustment, and carbohydrate metabolism. Lastly, we explored quantitative trait loci (QTLs) that regulate SCS for identifying candidate genes for breeding. The existing cultivars for SCS tolerance were primarily bred on agronomic and morphophysiological traits and lacked in molecular investigations. Therefore, breeding novel wheat cultivars based on QTLs and associated genes underlying the fundamental resistance mechanism is urgently needed to sustain grain setting and quality under SCS.
Collapse
Affiliation(s)
- Hui Su
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Cheng Tan
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Yonghua Liu
- School of Horticulture, Hainan University, Haikou 570228, China
| | - Xiang Chen
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Xinrui Li
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Ashley Jones
- Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Yulei Zhu
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
- Correspondence: (Y.Z.); (Y.S.)
| | - Youhong Song
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia
- Correspondence: (Y.Z.); (Y.S.)
| |
Collapse
|
12
|
Yang MK, Zhu XJ, Chen CM, Guo X, Xu SX, Xu YR, Du SX, Xiao S, Mueller-Roeber B, Huang W, Chen L. The plant circadian clock regulates autophagy rhythm through transcription factor LUX ARRHYTHMO. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:2135-2149. [PMID: 35962716 DOI: 10.1111/jipb.13343] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Autophagy is an evolutionarily conserved degradation pathway in eukaryotes; it plays a critical role in nutritional stress tolerance. The circadian clock is an endogenous timekeeping system that generates biological rhythms to adapt to daily changes in the environment. Accumulating evidence indicates that the circadian clock and autophagy are intimately interwoven in animals. However, the role of the circadian clock in regulating autophagy has been poorly elucidated in plants. Here, we show that autophagy exhibits a robust circadian rhythm in both light/dark cycle (LD) and in constant light (LL) in Arabidopsis. However, autophagy rhythm showed a different pattern with a phase-advance shift and a lower amplitude in LL compared to LD. Moreover, mutation of the transcription factor LUX ARRHYTHMO (LUX) removed autophagy rhythm in LL and led to an enhanced amplitude in LD. LUX represses expression of the core autophagy genes ATG2, ATG8a, and ATG11 by directly binding to their promoters. Phenotypic analysis revealed that LUX is responsible for improved resistance of plants to carbon starvation, which is dependent on moderate autophagy activity. Comprehensive transcriptomic analysis revealed that the autophagy rhythm is ubiquitous in plants. Taken together, our findings demonstrate that the LUX-mediated circadian clock regulates plant autophagy rhythms.
Collapse
Affiliation(s)
- Ming-Kang Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, 510642, China
| | - Xiao-Jie Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Chu-Min Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Xu Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shu-Xuan Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Ya-Rou Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shen-Xiu Du
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shi Xiao
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Bernd Mueller-Roeber
- Department of Molecular Biology, Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam-Golm, Germany
- Max Planck Institute of Molecular Plant Physiology, 14476, Potsdam-Golm, Germany
| | - Wei Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, 510642, China
| | - Liang Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, South China Agricultural University, Guangzhou, 510642, China
| |
Collapse
|
13
|
Wang S, Steed G, Webb AAR. Circadian entrainment in Arabidopsis. PLANT PHYSIOLOGY 2022; 190:981-993. [PMID: 35512209 PMCID: PMC9516740 DOI: 10.1093/plphys/kiac204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Circadian clocks coordinate physiology and development as an adaption to the oscillating day/night cycle caused by the rotation of Earth on its axis and the changing length of day and night away from the equator caused by orbiting the sun. Circadian clocks confer advantages by entraining to rhythmic environmental cycles to ensure that internal events within the plant occur at the correct time with respect to the cyclic external environment. Advances in determining the structure of circadian oscillators and the pathways that allow them to respond to light, temperature, and metabolic signals have begun to provide a mechanistic insight to the process of entrainment in Arabidopsis (Arabidopsis thaliana). We describe the concepts of entrainment and how it occurs. It is likely that a thorough mechanistic understanding of the genetic and physiological basis of circadian entrainment will provide opportunities for crop improvement.
Collapse
Affiliation(s)
- Shouming Wang
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
- School of Life Science and Technology, Hubei Engineering University, Xiaogan 432000, China
| | - Gareth Steed
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
| | | |
Collapse
|
14
|
Liu J, Wang P, Wang Y, Zhang Y, Xu T, Zhang Y, Xi J, Hou L, Li L, Zhang Z, Lin Y. Negative effects of poly(butylene adipate-co-terephthalate) microplastics on Arabidopsis and its root-associated microbiome. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129294. [PMID: 35728316 DOI: 10.1016/j.jhazmat.2022.129294] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/26/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
The degradable plastic poly(butylene adipate-co-terephthalate) (PBAT) is considered a potential replacement for low-density polyethylene (LDPE) as the main component of mulch film. However, it is not clear whether PBAT is harmful to the plant-soil system. Thus, we determined the effects of LDPE microplastics (LDPE-MPs) and PBAT microplastics (PBAT-MPs) on the growth of Arabidopsis. The inhibitory effect of PBAT-MPs was greater than that of LDPE-MPs on the growth of Arabidopsis. Transcriptome analysis showed that PBAT-MPs severely disrupted the photosynthetic system of Arabidopsis and increased the expression levels of genes in drug transport-related pathways. PBAT-MPs increased the relative abundances of Bradyrhizobium, Hydrogenophaga, and Arthrobacter in the bulk soil and rhizosphere soil. The abundances of Variovorax, Flavobacterium, and Microbacterium increased in the plant root zone only under PBAT-MPs. Functional prediction analysis suggested that microorganisms in the soil and plant root zone could degrade xenobiotics. Furthermore, the degradation products from PBAT comprising adipic acid, terephthalic acid, and butanediol were more toxic than PBAT-MPs. Our findings demonstrate that PBAT-MPs may be degraded by microorganisms to produce chemicals that are highly toxic to plants. Thus, biodegradable plastics may pose a great risk to the environment.
Collapse
Affiliation(s)
- Jiaxi Liu
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peiyuan Wang
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yufan Wang
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yujia Zhang
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tengqi Xu
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yiqiong Zhang
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jiao Xi
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Lijun Hou
- Department of Natural Resource Sciences, McGill University, Ste-Anne-de-Bellevue, Quebec H9X 3V9, Canada
| | - Li Li
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yanbing Lin
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China.
| |
Collapse
|
15
|
Kidokoro S, Shinozaki K, Yamaguchi-Shinozaki K. Transcriptional regulatory network of plant cold-stress responses. TRENDS IN PLANT SCIENCE 2022; 27:922-935. [PMID: 35210165 DOI: 10.1016/j.tplants.2022.01.008] [Citation(s) in RCA: 102] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/04/2022] [Accepted: 01/19/2022] [Indexed: 06/14/2023]
Abstract
Recent studies have revealed the complex and flexible transcriptional regulatory network involved in cold-stress responses. Focusing on two major signaling pathways that respond to cold stress, we outline current knowledge of the transcriptional regulatory network and the post-translational regulation of transcription factors in the network. Cold-stress signaling pathways are closely associated with other signaling pathways such as those related to the circadian clock, and large amounts of data on their crosstalk and tradeoffs are available. However, it remains unknown how plants sense and transmit cold-stress signals to regulate gene expression. We discuss recent reports on cold-stress sensing and associated signaling pathways that regulate the network. We also emphasize future directions for developing abiotic stress-tolerant crop plants.
Collapse
Affiliation(s)
- Satoshi Kidokoro
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan.
| | - Kazuo Shinozaki
- Gene Discovery Research Group, RIKEN Center for Sustainable Resource Science, Tsukuba, Ibaraki 305-0074, Japan
| | - Kazuko Yamaguchi-Shinozaki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan; Research Institute for Agricultural and Life Sciences, Tokyo University of Agriculture, Setagaya-ku, Tokyo 156-8502, Japan.
| |
Collapse
|
16
|
Li T, Li H, Lian H, Song P, Wang Y, Duan J, Song Z, Cao Y, Xu D, Li J, Zhang H. SICKLE represses photomorphogenic development of Arabidopsis seedlings via HY5- and PIF4-mediated signaling. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1706-1723. [PMID: 35848532 DOI: 10.1111/jipb.13329] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
Arabidopsis CONSTITUTIVELY PHOTOMORPHOGENIC1 (COP1) and PHYTOCHROME INTERACTING FACTORs (PIFs) are negative regulators, and ELONGATED HYPOCOTYL5 (HY5) is a positive regulator of seedling photomorphogenic development. Here, we report that SICKLE (SIC), a proline rich protein, acts as a novel negative regulator of photomorphogenesis. HY5 directly binds the SIC promoter and activates SIC expression in response to light. In turn, SIC physically interacts with HY5 and interferes with its transcriptional regulation of downstream target genes. Moreover, SIC interacts with PIF4 and promotes PIF4-activated transcription of itself. Interestingly, SIC is targeted by COP1 for 26S proteasome-mediated degradation in the dark. Collectively, our data demonstrate that light-induced SIC functions as a brake to prevent exaggerated light response via mediating HY5 and PIF4 signaling, and its degradation by COP1 in the dark avoid too strong inhibition on photomorphogenesis at the beginning of light exposure.
Collapse
Affiliation(s)
- Tao Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Haojie Li
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Hongmei Lian
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| | - Pengyu Song
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yulong Wang
- School of Life Sciences, Westlake University, Hangzhou, 310024, China
| | - Jie Duan
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhaoqing Song
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yan Cao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Dongqing Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Jigang Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Huiyong Zhang
- College of Life Sciences, Henan Agricultural University, Zhengzhou, 450002, China
| |
Collapse
|
17
|
Bian Y, Chu L, Lin H, Qi Y, Fang Z, Xu D. PIFs- and COP1-HY5-mediated temperature signaling in higher plants. STRESS BIOLOGY 2022; 2:35. [PMID: 37676326 PMCID: PMC10441884 DOI: 10.1007/s44154-022-00059-w] [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: 07/22/2022] [Accepted: 08/16/2022] [Indexed: 09/08/2023]
Abstract
Plants have to cope with the surrounding changing environmental stimuli to optimize their physiological and developmental response throughout their entire life cycle. Light and temperature are two critical environmental cues that fluctuate greatly during day-night cycles and seasonal changes. These two external signals coordinately control the plant growth and development. Distinct spectrum of light signals are perceived by a group of wavelength-specific photoreceptors in plants. PIFs and COP1-HY5 are two predominant signaling hubs that control the expression of a large number of light-responsive genes and subsequent light-mediated development in plants. In parallel, plants also transmit low or warm temperature signals to these two regulatory modules that precisely modulate the responsiveness of low or warm temperatures. The core component of circadian clock ELF3 integrates signals from light and warm temperatures to regulate physiological and developmental processes in plants. In this review, we summarize and discuss recent advances and progresses on PIFs-, COP1-HY5- and ELF3-mediated light, low or warm temperature signaling, and highlight emerging insights regarding the interactions between light and low or warm temperature signal transduction pathways in the control of plant growth.
Collapse
Affiliation(s)
- Yeting Bian
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Li Chu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Huan Lin
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yaoyao Qi
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zheng Fang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Dongqing Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, 210095, China.
| |
Collapse
|
18
|
Yang G, Zhang C, Dong H, Liu X, Guo H, Tong B, Fang F, Zhao Y, Yu Y, Liu Y, Lin L, Yin R. Activation and negative feedback regulation of SlHY5 transcription by the SlBBX20/21-SlHY5 transcription factor module in UV-B signaling. THE PLANT CELL 2022; 34:2038-2055. [PMID: 35188198 PMCID: PMC9048894 DOI: 10.1093/plcell/koac064] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 01/31/2022] [Indexed: 05/04/2023]
Abstract
In tomato (Solanum lycopersicum) and other plants, the photoreceptor UV-RESISTANCE LOCUS 8 regulates plant UV-B photomorphogenesis by modulating the transcription of many genes, the majority of which depends on the transcription factor ELONGATED HYPOCOTYL 5 (HY5). HY5 transcription is induced and then rapidly attenuated by UV-B. However, neither the transcription factors that activate HY5 transcription nor the mechanism for its attenuation during UV-B signaling is known. Here, we report that the tomato B-BOX (BBX) transcription factors SlBBX20 and SlBBX21 interact with SlHY5 and bind to the SlHY5 promoter to activate its transcription. UV-B-induced SlHY5 expression and SlHY5-controlled UV-B responses are normal in slbbx20 and slbbx21 single mutants, but strongly compromised in the slbbx20 slbbx21 double mutant. Surprisingly, UV-B responses are also compromised in lines overexpressing SlBBX20 or SlBBX21. Both SlHY5 and SlBBX20 bind to G-box1 in the SlHY5 promoter. SlHY5 outcompetes SlBBX20 for binding to the SlHY5 promoter in vitro, and inhibits the association of SlBBX20 with the SlHY5 promoter in vivo. Overexpressing 35S:SlHY5-FLAG in the WT background inhibits UV-B-induced endogenous SlHY5 expression. Together, our results reveal the critical role of the SlBBX20/21-SlHY5 module in activating the expression of SlHY5, the gene product of which inhibits its own gene transcription under UV-B, forming an autoregulatory negative feedback loop that balances SlHY5 transcription in plants.
Collapse
Affiliation(s)
- Guoqian Yang
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chunli Zhang
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
- Key Laboratory of Urban Agriculture Ministry of Agriculture, Shanghai Jiao Tong University, Shanghai 200240, China
- Joint Center for Single Cell Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huaxi Dong
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaorui Liu
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huicong Guo
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Boqin Tong
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fang Fang
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yiyang Zhao
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yunji Yu
- Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue Liu
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Li Lin
- Shanghai Cooperative Innovation Center for Modern Seed Industry/School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
- Key Laboratory of Urban Agriculture Ministry of Agriculture, Shanghai Jiao Tong University, Shanghai 200240, China
- Joint Center for Single Cell Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | | |
Collapse
|
19
|
Velappan Y, Chabikwa TG, Considine JA, Agudelo-Romero P, Foyer CH, Signorelli S, Considine MJ. The bud dormancy disconnect: latent buds of grapevine are dormant during summer despite a high metabolic rate. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:2061-2076. [PMID: 35022731 PMCID: PMC8982382 DOI: 10.1093/jxb/erac001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 01/10/2022] [Indexed: 05/19/2023]
Abstract
Grapevine (Vitis vinifera L.) displays wide plasticity to climate; however, the physiology of dormancy along a seasonal continuum is poorly understood. Here we investigated the apparent disconnect between dormancy and the underlying respiratory physiology and transcriptome of grapevine buds, from bud set in summer to bud burst in spring. The establishment of dormancy in summer was pronounced and reproducible; however, this was coupled with little or no change in physiology, indicated by respiration, hydration, and tissue oxygen tension. The release of dormancy was biphasic; the depth of dormancy declined substantially by mid-autumn, while the subsequent decline towards spring was moderate. Observed changes in physiology failed to explain the first phase of dormancy decline, in particular. Transcriptome data contrasting development from summer through to spring also indicated that dormancy was poorly reflected by metabolic quiescence during summer and autumn. Gene Ontology and enrichment data revealed the prevailing influence of abscisic acid (ABA)-related gene expression during the transition from summer to autumn, and promoter motif analysis suggested that photoperiod may play an important role in regulating ABA functions during the establishment of dormancy. Transcriptomic data from later transitions reinforced the importance of oxidation and hypoxia as physiological cues to regulate the maintenance of quiescence and resumption of growth. Collectively these data reveal a novel disconnect between growth and metabolic quiescence in grapevine following bud set, which requires further experimentation to explain the phenology and dormancy relationships.
Collapse
Affiliation(s)
- Yazhini Velappan
- ARC Centre of Excellence in Plant Energy Biology, and the School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Tinashe G Chabikwa
- ARC Centre of Excellence in Plant Energy Biology, and the School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia
- Present address: QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, Brisbane, QLD 4006, Australia
| | - John A Considine
- The UWA Institute of Agriculture, University of Western Australia, Perth, WA 6009, Australia
| | - Patricia Agudelo-Romero
- ARC Centre of Excellence in Plant Energy Biology, and the School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia
- Present address: Telethon Kids Institute, Perth Children’s Hospital, 15 Hospital Ave, Nedlands WA 6009, Australia
| | - Christine H Foyer
- School of Biosciences, University of Birmingham, Edgbaston B15 2TT, UK
| | - Santiago Signorelli
- ARC Centre of Excellence in Plant Energy Biology, and the School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia
- Departamento de Biología Vegetal, Universidad de la República, Montevideo, 12900, Uruguay
| | - Michael J Considine
- ARC Centre of Excellence in Plant Energy Biology, and the School of Molecular Sciences, University of Western Australia, Perth, WA 6009, Australia
- The UWA Institute of Agriculture, University of Western Australia, Perth, WA 6009, Australia
- Department of Primary Industries and Regional Development, South Perth, WA 6151, Australia
- Correspondence:
| |
Collapse
|
20
|
Li X, Liang T, Liu H. How plants coordinate their development in response to light and temperature signals. THE PLANT CELL 2022; 34:955-966. [PMID: 34904672 PMCID: PMC8894937 DOI: 10.1093/plcell/koab302] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/06/2021] [Indexed: 05/12/2023]
Abstract
Light and temperature change constantly under natural conditions and profoundly affect plant growth and development. Light and warmer temperatures promote flowering, higher light intensity inhibits hypocotyl and petiole elongation, and warmer temperatures promote hypocotyl and petiole elongation. Moreover, exogenous light and temperature signals must be integrated with endogenous signals to fine-tune phytohormone metabolism and plant morphology. Plants perceive and respond to light and ambient temperature using common sets of factors, such as photoreceptors and multiple light signal transduction components. These highly structured signaling networks are critical for plant survival and adaptation. This review discusses how plants respond to variable light and temperature conditions using common elements to coordinate their development. Future directions for research on light and temperature signaling pathways are also discussed.
Collapse
Affiliation(s)
- Xu Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Tong Liang
- Keck School of Medicine, University of Southern California, Los Angeles, California 90089, USA
| | - Hongtao Liu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China
- Author for correspondence:
| |
Collapse
|
21
|
Hwarari D, Guan Y, Ahmad B, Movahedi A, Min T, Hao Z, Lu Y, Chen J, Yang L. ICE-CBF-COR Signaling Cascade and Its Regulation in Plants Responding to Cold Stress. Int J Mol Sci 2022; 23:ijms23031549. [PMID: 35163471 PMCID: PMC8835792 DOI: 10.3390/ijms23031549] [Citation(s) in RCA: 81] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 12/19/2022] Open
Abstract
Cold stress limits plant geographical distribution and influences plant growth, development, and yields. Plants as sessile organisms have evolved complex biochemical and physiological mechanisms to adapt to cold stress. These mechanisms are regulated by a series of transcription factors and proteins for efficient cold stress acclimation. It has been established that the ICE-CBF-COR signaling pathway in plants regulates how plants acclimatize to cold stress. Cold stress is perceived by receptor proteins, triggering signal transduction, and Inducer of CBF Expression (ICE) genes are activated and regulated, consequently upregulating the transcription and expression of the C-repeat Binding Factor (CBF) genes. The CBF protein binds to the C-repeat/Dehydration Responsive Element (CRT/DRE), a homeopathic element of the Cold Regulated genes (COR gene) promoter, activating their transcription. Transcriptional regulations and post-translational modifications regulate and modify these entities at different response levels by altering their expression or activities in the signaling cascade. These activities then lead to efficient cold stress tolerance. This paper contains a concise summary of the ICE-CBF-COR pathway elucidating on the cross interconnections with other repressors, inhibitors, and activators to induce cold stress acclimation in plants.
Collapse
Affiliation(s)
- Delight Hwarari
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (D.H.); (Y.G.); (B.A.); (A.M.); (T.M.)
| | - Yuanlin Guan
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (D.H.); (Y.G.); (B.A.); (A.M.); (T.M.)
| | - Baseer Ahmad
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (D.H.); (Y.G.); (B.A.); (A.M.); (T.M.)
| | - Ali Movahedi
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (D.H.); (Y.G.); (B.A.); (A.M.); (T.M.)
| | - Tian Min
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (D.H.); (Y.G.); (B.A.); (A.M.); (T.M.)
| | - Zhaodong Hao
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (Z.H.); (Y.L.)
| | - Ye Lu
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (Z.H.); (Y.L.)
| | - Jinhui Chen
- College of Forestry, Nanjing Forestry University, Nanjing 210037, China; (Z.H.); (Y.L.)
- Correspondence: (J.C.); (L.Y.)
| | - Liming Yang
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China; (D.H.); (Y.G.); (B.A.); (A.M.); (T.M.)
- Correspondence: (J.C.); (L.Y.)
| |
Collapse
|
22
|
Xiao Y, Chu L, Zhang Y, Bian Y, Xiao J, Xu D. HY5: A Pivotal Regulator of Light-Dependent Development in Higher Plants. FRONTIERS IN PLANT SCIENCE 2022; 12:800989. [PMID: 35111179 PMCID: PMC8801436 DOI: 10.3389/fpls.2021.800989] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 12/17/2021] [Indexed: 05/10/2023]
Abstract
ELONGATED HYPOCOTYL5 (HY5), a bZIP-type transcription factor, acts as a master regulator that regulates various physiological and biological processes in plants such as photomorphogenesis, root growth, flavonoid biosynthesis and accumulation, nutrient acquisition, and response to abiotic stresses. HY5 is evolutionally conserved in function among various plant species. HY5 acts as a master regulator of light-mediated transcriptional regulatory hub that directly or indirectly controls the transcription of approximately one-third of genes at the whole genome level. The transcription, protein abundance, and activity of HY5 are tightly modulated by a variety of factors through distinct regulatory mechanisms. This review primarily summarizes recent advances on HY5-mediated molecular and physiological processes and regulatory mechanisms on HY5 in the model plant Arabidopsis as well as in crops.
Collapse
Affiliation(s)
| | | | | | | | | | - Dongqing Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, National Center for Soybean Improvement, College of Agriculture, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
23
|
Ma L, Li X, Zhao Z, Hao Y, Shang R, Zeng D, Liu H. Light-Response Bric-A-Brack/Tramtrack/Broad proteins mediate cryptochrome 2 degradation in response to low ambient temperature. THE PLANT CELL 2021; 33:3610-3620. [PMID: 34463721 PMCID: PMC8643628 DOI: 10.1093/plcell/koab219] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 08/26/2021] [Indexed: 05/20/2023]
Abstract
Cryptochromes (crys) are photolyase-like blue-light receptors first discovered in Arabidopsis thaliana and later identified in all major evolutionary lineages. Crys are involved in not only blue light responses but also in temperature responses; however, whether and how cry protein stability is regulated by temperature remains unknown. Here, we show that cry2 protein abundance is modulated by ambient temperature and cry2 protein is degraded under low ambient temperature via the 26S proteasome. Consistent with this, cry2 shows high levels of ubiquitination under low ambient temperatures. Interestingly, cry2 degradation at low ambient temperatures occurs only under blue light and not under red light or dark conditions, indicating blue-light-dependent degradation of cry2 at low ambient temperature. Furthermore, low ambient temperature promotes physical interaction of Light-Response Bric-a-Brack/Tramtrack/Broad (LRB) proteins with cry2 to modulate its ubiquitination and protein stability in response to ambient temperature. LRBs promote high-temperature-induced hypocotyl elongation by modulating the protein stability of cry2 protein. These results indicate that cry2 accumulation is regulated by not only blue light but also ambient temperature, and LRBs are responsible for cry2 degradation at low ambient temperature. The stabilization of cry2 by high temperature makes cry2 a better negative regulator of temperature responses.
Collapse
Affiliation(s)
- Libang Ma
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Xu Li
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Zhiwei Zhao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Yuhao Hao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Ruixin Shang
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Desheng Zeng
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Hongtao Liu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
24
|
Zhao H, Bao Y. PIF4: Integrator of light and temperature cues in plant growth. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 313:111086. [PMID: 34763871 DOI: 10.1016/j.plantsci.2021.111086] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/18/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Plants are sessile and lack behavioural responses to avoid extreme environmental changes linked to annual seasons. For survival, they have evolved elaborate sensory systems coordinating their architecture and physiology with fluctuating diurnal and seasonal temperatures. PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) was initially identified as a key component of the Arabidopsis thaliana phytochrome signalling pathway. It was then identified as playing a central role in promoting plant hypocotyl growth via the activation of auxin synthesis and signalling-related genes. Recent studies expanded its known regulatory functions to thermomorphogenesis and defined PIF4 as a central molecular hub for the integration of environmental light and temperature cues. The present review comprehensively summarizes recent progress in our understanding of PIF4 function in Arabidopsis thaliana, including PIF4-mediated photomorphogenesis and thermomorphogenesis, and the contribution of PIF4 to plant growth via the integration of environmental light and temperature cues. Remaining questions and possible directions for future research on PIF4 are also discussed.
Collapse
Affiliation(s)
- Hang Zhao
- College of Life Sciences, Qufu Normal University, Qufu, 273165, China.
| | - Ying Bao
- College of Life Sciences, Qufu Normal University, Qufu, 273165, China
| |
Collapse
|
25
|
Shi C, Liu H. How plants protect themselves from ultraviolet-B radiation stress. PLANT PHYSIOLOGY 2021; 187:1096-1103. [PMID: 34734275 PMCID: PMC8566272 DOI: 10.1093/plphys/kiab245] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/10/2021] [Indexed: 05/20/2023]
Abstract
Ultraviolet-B (UV-B) radiation has a wavelength range of 280-315 nm. Plants perceive UV-B as an environmental signal and a potential abiotic stress factor that affects development and acclimation. UV-B regulates photomorphogenesis including hypocotyl elongation inhibition, cotyledon expansion, and flavonoid accumulation, but high intensity UV-B can also harm plants by damaging DNA, triggering accumulation of reactive oxygen species, and impairing photosynthesis. Plants have evolved "sunscreen" flavonoids that accumulate under UV-B stress to prevent or limit damage. The UV-B receptor UV RESISTANCE LOCUS 8 (UVR8) plays a critical role in promoting flavonoid biosynthesis to enhance UV-B stress tolerance. Recent studies have clarified several UVR8-mediated and UVR8-independent pathways that regulate UV-B stress tolerance. Here, we review these additions to our understanding of the molecular pathways involved in UV-B stress tolerance, highlighting the important roles of ELONGATED HYPOCOTYL 5, BRI1-EMS-SUPPRESSOR1, MYB DOMAIN PROTEIN 13, MAP KINASE PHOSPHATASE 1, and ATM- and RAD3-RELATED. We also summarize the known interactions with visible light receptors and the contribution of melatonin to UV-B stress responses. Finally, we update a working model of the UV-B stress tolerance pathway.
Collapse
Affiliation(s)
- Chen Shi
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Hongtao Liu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
- Author for communication:
| |
Collapse
|
26
|
Basu R, Dutta S, Pal A, Sengupta M, Chattopadhyay S. Calmodulin7: recent insights into emerging roles in plant development and stress. PLANT MOLECULAR BIOLOGY 2021; 107:1-20. [PMID: 34398355 DOI: 10.1007/s11103-021-01177-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 07/27/2021] [Indexed: 05/25/2023]
Abstract
Analyses of the function of Arabidopsis Calmodulin7 (CAM7) in concert with multiple regulatory proteins involved in various signal transduction processes. Calmodulin (CaM) plays various regulatory roles in multiple signaling pathways in eukaryotes. Arabidopsis CALMODULIN 7 (CAM7) is a unique member of the CAM family that works as a transcription factor in light signaling pathways. CAM7 works in concert with CONSTITUTIVE PHOTOMORPHOGENIC 1 and ELONGATED HYPOCOTYL 5, and plays an important role in seedling development. Further, it is involved in the regulation of the activity of various Ca2+-gated channels such as cyclic nucleotide gated channel 6 (CNGC6), CNGC14 and auto-inhibited Ca2+ ATPase 8. Recent studies further indicate that CAM7 is also an integral part of multiple signaling pathways including hormone, immunity and stress. Here, we review the recent advances in understanding the multifaceted role of CAM7. We highlight the open-ended questions, and also discuss the diverse aspects of CAM7 characterization that need to be addressed for comprehensive understanding of its cellular functions.
Collapse
Affiliation(s)
- Riya Basu
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Siddhartha Dutta
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
- Department of Biotechnology, University of Engineering and Management, University Area, Plot, Street Number 03, Action Area III, B/5, Newtown, Kolkata, West Bengal, 700156, India
| | - Abhideep Pal
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Mandar Sengupta
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India
| | - Sudip Chattopadhyay
- Department of Biotechnology, National Institute of Technology, Mahatma Gandhi Avenue, Durgapur, West Bengal, 713209, India.
| |
Collapse
|
27
|
Li T, Lian H, Li H, Xu Y, Zhang H. HY5 regulates light-responsive transcription of microRNA163 to promote primary root elongation in Arabidopsis seedlings. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:1437-1450. [PMID: 33860639 DOI: 10.1111/jipb.13099] [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: 02/05/2021] [Accepted: 04/12/2021] [Indexed: 05/25/2023]
Abstract
MicroRNAs (miRNAs) play key roles in the post-transcriptional regulation of gene expression in plants. Many miRNAs are responsive to environmental signals. Light is the first environmental signal perceived by plants after emergence from the soil. However, less is known about the roles and regulatory mechanism of miRNAs in response to light signal. Here, using small RNA sequencing, we determined that miR163 is significantly rapidly induced by light signaling in Arabidopsis thaliana seedlings. The light-inducible response of miR163 functions genetically downstream of LONG HYPOCOTYL 5 (HY5), a central positive regulator of photomorphogenesis. HY5 directly binds to the two G/C-hybrid elements in the miR163 promoter with unequal affinity; one of these elements, which is located next to the transcription start site, plays a major role in light-induced expression of miR163. Overexpression of miR163 rescued the defective primary root elongation of hy5 seedlings without affecting lateral root growth, whereas overexpressing of miR163 target PXMT1 inhibited primary root elongation. These findings provide insight into understanding the post-transcriptional regulation of root photomorphogenesis mediated by the HY5-miR163-PXMT1 network.
Collapse
Affiliation(s)
- Tao Li
- College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Hongmei Lian
- College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Haojie Li
- College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yufang Xu
- College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| | - Huiyong Zhang
- College of Life Science, Henan Agricultural University, Zhengzhou, 450002, China
| |
Collapse
|
28
|
BBX11 promotes red light-mediated photomorphogenic development by modulating phyB-PIF4 signaling. ABIOTECH 2021; 2:117-130. [PMID: 36304757 PMCID: PMC9590482 DOI: 10.1007/s42994-021-00037-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/24/2021] [Indexed: 12/03/2022]
Abstract
phytochrome B (phyB) acts as the red light photoreceptor and negatively regulates the growth-promoting factor PHYTOCHROME INTERACTING 4 (PIF4) through a direct physical interaction, which in turn changes the expression of a large number of genes. phyB-PIF4 module regulates a variety of biological and developmental processes in plants. In this study, we demonstrate that B-BOX PROTEIN 11 (BBX11) physically interacts with both phyB and PIF4. BBX11 negatively regulates PIF4 accumulation as well as its biochemical activity, consequently leading to the repression of PIF4-controlled genes' expression and promotion of photomorphogenesis in the prolonged red light. This study reveals a regulatory mechanism that mediates red light signal transduction and sheds a light on phyB-PIF4 module in promoting red light-dependent photomorphognenesis. Supplementary Information The online version contains supplementary material available at 10.1007/s42994-021-00037-2.
Collapse
|
29
|
Dou L, He K, Peng J, Wang X, Mao T. The E3 ligase MREL57 modulates microtubule stability and stomatal closure in response to ABA. Nat Commun 2021; 12:2181. [PMID: 33846350 PMCID: PMC8041845 DOI: 10.1038/s41467-021-22455-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 03/12/2021] [Indexed: 02/02/2023] Open
Abstract
Regulation of stomatal movement is critical for plant adaptation to environmental stresses. The microtubule cytoskeleton undergoes disassembly, which is critical for stomatal closure in response to abscisic acid (ABA). However, the mechanism underlying this regulation largely remains unclear. Here we show that a ubiquitin-26S proteasome (UPS)-dependent pathway mediates microtubule disassembly and is required for ABA-induced stomatal closure. Moreover, we identify and characterize the ubiquitin E3 ligase MREL57 (MICROTUBULE-RELATED E3 LIGASE57) and the microtubule-stabilizing protein WDL7 (WAVE-DAMPENED2-LIKE7) in Arabidopsis and show that the MREL57-WDL7 module regulates microtubule disassembly to mediate stomatal closure in response to drought stress and ABA treatment. MREL57 interacts with, ubiquitinates and degrades WDL7, and this effect is clearly enhanced by ABA. ABA-induced stomatal closure and microtubule disassembly are significantly suppressed in mrel57 mutants, and these phenotypes can be restored when WDL7 expression is decreased. Our results unravel UPS-dependent mechanisms and the role of an MREL57-WDL7 module in microtubule disassembly and stomatal closure in response to drought stress and ABA.
Collapse
Affiliation(s)
- Liru Dou
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Plant Physiology and Biochemistry; Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Kaikai He
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Plant Physiology and Biochemistry; Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Jialin Peng
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Plant Physiology and Biochemistry; Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Xiangfeng Wang
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Plant Physiology and Biochemistry; Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Tonglin Mao
- grid.22935.3f0000 0004 0530 8290State Key Laboratory of Plant Physiology and Biochemistry; Department of Plant Sciences, College of Biological Sciences, China Agricultural University, Beijing, China
| |
Collapse
|
30
|
Ponnu J, Hoecker U. Illuminating the COP1/SPA Ubiquitin Ligase: Fresh Insights Into Its Structure and Functions During Plant Photomorphogenesis. FRONTIERS IN PLANT SCIENCE 2021; 12:662793. [PMID: 33841486 PMCID: PMC8024647 DOI: 10.3389/fpls.2021.662793] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/04/2021] [Indexed: 05/07/2023]
Abstract
CONSTITUTIVE PHOTOMORPHOGENIC 1 functions as an E3 ubiquitin ligase in plants and animals. Discovered originally in Arabidopsis thaliana, COP1 acts in a complex with SPA proteins as a central repressor of light-mediated responses in plants. By ubiquitinating and promoting the degradation of several substrates, COP1/SPA regulates many aspects of plant growth, development and metabolism. In contrast to plants, human COP1 acts as a crucial regulator of tumorigenesis. In this review, we discuss the recent important findings in COP1/SPA research including a brief comparison between COP1 activity in plants and humans.
Collapse
|
31
|
Hõrak H. How COR27 and COR28 Promote Hypocotyl Growth: Bind to COP1 and Suppress HY5 Activity. THE PLANT CELL 2020; 32:3045-3046. [PMID: 32763979 PMCID: PMC7534471 DOI: 10.1105/tpc.20.00617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Hanna Hõrak
- Institute of TechnologyUniversity of Tartu, Estonia
| |
Collapse
|