1
|
Han Q, Yang L, Xia L, Zhang H, Zhang S. Interspecific grafting promotes poplar growth and drought resistance via regulating phytohormone signaling and secondary metabolic pathways. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108594. [PMID: 38581808 DOI: 10.1016/j.plaphy.2024.108594] [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: 08/23/2023] [Revised: 11/22/2023] [Accepted: 04/01/2024] [Indexed: 04/08/2024]
Abstract
Populus cathayana (C) grafted onto P. deltoides (D) (C/D) can promote growth better than self-grafting (C/C and D/D). However, the mechanisms underlying growth and resistance to drought stress are not clear. In this study, we performed physiological and RNA-seq analysis on the different grafted combinations. It was found that C/D plants exhibited higher growth, net photosynthetic rate, IAA content and intrinsic water use efficiency (WUEi) than C/C and D/D plants under both well-watered and drought-stressed conditions. However, most growth, photosynthetic indices, and IAA content were decreased less in C/D, whereas ABA content, WUEi and root characteristics (e.g., root length, volume, surface area and vitality) were increased more in C/D than in other grafting combinations under drought-stressed conditions. Transcriptomic analysis revealed that the number of differentially expressed genes (DEGs) in leaves of C/D vs C/C (control, 181; drought, 121) was much lower than that in the roots of C/D vs D/D (control, 1639; drought, 1706), indicating that the rootstocks were more responsive to drought resistance. KEGG and GO functional enrichment analysis showed that the enhanced growth and drought resistance of C/D were mainly related to DEGs involved in the pathways of ABA and IAA signaling, and secondary metabolite biosynthesis, especially the pathways for lignin and dopamine synthesis and metabolism. Therefore, our results further demonstrated the dominant role of rootstock in drought resistance, and enriched our knowledge on the mechanism of how interspecific grafting enhanced the growth and drought resistance in poplar.
Collapse
Affiliation(s)
- Qingquan Han
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, China; Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Le Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Linchao Xia
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China
| | - Hongxia Zhang
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, China.
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, China.
| |
Collapse
|
2
|
Voothuluru P, Wu Y, Sharp RE. Not so hidden anymore: Advances and challenges in understanding root growth under water deficits. THE PLANT CELL 2024; 36:1377-1409. [PMID: 38382086 PMCID: PMC11062450 DOI: 10.1093/plcell/koae055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/09/2024] [Accepted: 02/15/2024] [Indexed: 02/23/2024]
Abstract
Limited water availability is a major environmental factor constraining plant development and crop yields. One of the prominent adaptations of plants to water deficits is the maintenance of root growth that enables sustained access to soil water. Despite early recognition of the adaptive significance of root growth maintenance under water deficits, progress in understanding has been hampered by the inherent complexity of root systems and their interactions with the soil environment. We highlight selected milestones in the understanding of root growth responses to water deficits, with emphasis on founding studies that have shaped current knowledge and set the stage for further investigation. We revisit the concept of integrated biophysical and metabolic regulation of plant growth and use this framework to review central growth-regulatory processes occurring within root growth zones under water stress at subcellular to organ scales. Key topics include the primary processes of modifications of cell wall-yielding properties and osmotic adjustment, as well as regulatory roles of abscisic acid and its interactions with other hormones. We include consideration of long-recognized responses for which detailed mechanistic understanding has been elusive until recently, for example hydrotropism, and identify gaps in knowledge, ongoing challenges, and opportunities for future research.
Collapse
Affiliation(s)
- Priya Voothuluru
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO 65211, USA
| | - Yajun Wu
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA
| | - Robert E Sharp
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO 65211, USA
| |
Collapse
|
3
|
Latif A, Yang CG, Zhang LX, Yang XY, Liu XY, Ai LF, Noman A, Pu CX, Sun Y. The Receptor Kinases DRUS1 and DRUS2 Behave Distinctly in Osmotic Stress Tolerance by Modulating the Root System Architecture via Auxin Signaling. PLANTS (BASEL, SWITZERLAND) 2024; 13:860. [PMID: 38592851 PMCID: PMC10974500 DOI: 10.3390/plants13060860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 04/11/2024]
Abstract
Receptor kinases DRUS1 (Dwarf and Runtish Spikelet1) and DRUS2 are orthologues of the renowned Arabidopsis thaliana gene FERONIA, which play redundant roles in rice growth and development. Whether the two duplicated genes perform distinct functions in response to environmental stress is largely unknown. Here, we found that osmotic stress (OS) and ABA increased DRUS1 expression while decreasing DRUS2. When subjected to osmotic stress, the increased DRUS1 in drus2 mutants suppresses the OsIAA repressors, resulting in a robust root system with an increased number of adventitious and lateral roots as well as elongated primary, adventitious, and lateral roots, conferring OS tolerance. In contrast, the decreased DRUS2 in drus1-1 mutants are not sufficient to suppress OsIAA repressors, leading to a feeble root system with fewer adventitious and lateral roots and hindering seminal root growth, rendering OS intolerance. All these findings offer valuable insights into the biological significance of the duplication of two homologous genes in rice, wherein, if one is impaired, the other one is able to continue auxin-signaling-mediated root growth and development to favor resilience to environmental stress, such as water shortage.
Collapse
Affiliation(s)
- Ammara Latif
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (A.L.)
- Department of Botany, Government College University, Faisalabad 38000, Pakistan
| | - Chen-Guang Yang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (A.L.)
| | - Lan-Xin Zhang
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (A.L.)
| | - Xin-Yu Yang
- Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Xin-Ye Liu
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (A.L.)
| | - Lian-Feng Ai
- Technology Center of Shijiazhuang Customs, Shijiazhuang 050051, China
| | - Ali Noman
- Department of Botany, Government College University, Faisalabad 38000, Pakistan
| | - Cui-Xia Pu
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (A.L.)
| | - Ying Sun
- Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling and Environmental Adaptation, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China; (A.L.)
| |
Collapse
|
4
|
Duan SJ, Du J, Yu DW, Pei XJ, Yin DQ, Wang SJ, Tao QZ, Dan Y, Zhang XC, Deng J, Chen JS, Wei Q, Lei NF. Clonal integration of stress signal induces morphological and physiological response of root within clonal network. PLoS One 2024; 19:e0298258. [PMID: 38446823 PMCID: PMC10917298 DOI: 10.1371/journal.pone.0298258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 01/22/2024] [Indexed: 03/08/2024] Open
Abstract
Clonal integration of defense or stress signal induced systemic resistance in leaf of interconnected ramets. However, similar effects of stress signal in root are poorly understood within clonal network. Clonal fragments of Centella asiaticas with first-young, second-mature, third-old and fourth-oldest ramets were used to investigate transportation or sharing of stress signal among interconnected ramets suffering from low water availability. Compared with control, oxidative stress in root of the first-young, second-mature and third-old ramets was significantly alleviated by exogenous ABA application to the fourth-oldest ramets as well as enhancement of antioxidant enzyme (SOD, POD, CAT and APX) activities and osmoregulation ability. Surface area and volume in root of the first-young ramets were significantly increased and total length in root of the third-old ramets was significantly decreased. POD activity in root of the fourth-oldest and third-old ramets was significantly enhanced by exogenous ABA application to the first-young ramets. Meanwhile, total length and surface area in root of the fourth-oldest and third-old ramets were significantly decreased. Ratio of belowground to aboveground biomass in the whole clonal fragments was significantly increased by exogenous ABA application to the fourth-oldest or first-young ramets. It is suggested that transportation or sharing of stress signal may induce systemic resistance in root of interconnected ramets. Specially, transportation or sharing of stress signal against phloem flow was observed in the experiment. Possible explanation is that rapid recovery of foliar photosynthesis in first-young ramets subjected to exogenous ABA application can partially reverse phloem flow within clonal network. Thus, our experiment provides insight into ecological implication on clonal integration of stress signal.
Collapse
Affiliation(s)
- Su-Juan Duan
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Jie Du
- Jiuzhaigou National Nature Reserve Administration, Sichuan, China
| | - Dong-Wei Yu
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Xiang-Jun Pei
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, China
| | - Da-Qiu Yin
- Huaneng Tibet Yarlung Zangbo River Hydropower Development and Investment Co., Ltd, Lhasa, China
| | - Shi-Jun Wang
- Huaneng Tibet Yarlung Zangbo River Hydropower Development and Investment Co., Ltd, Lhasa, China
| | - Qi-Zhong Tao
- Huaneng Tibet Yarlung Zangbo River Hydropower Development and Investment Co., Ltd, Lhasa, China
| | - Yi Dan
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Xiao-Chao Zhang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu, China
| | - Jie Deng
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Jin-Song Chen
- College of Life Science, Sichuan Normal University, Chengdu, China
| | - Qing Wei
- College of Pastoral Agricultural Science and Technology, State Key Laboratory of Grassland Agro-ecosystems, Lanzhou University, Lanzhou, China
| | - Ning-Fei Lei
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, China
| |
Collapse
|
5
|
Kalra A, Goel S, Elias AA. Understanding role of roots in plant response to drought: Way forward to climate-resilient crops. THE PLANT GENOME 2024; 17:e20395. [PMID: 37853948 DOI: 10.1002/tpg2.20395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 07/26/2023] [Accepted: 09/18/2023] [Indexed: 10/20/2023]
Abstract
Drought stress leads to a significant amount of agricultural crop loss. Thus, with changing climatic conditions, it is important to develop resilience measures in agricultural systems against drought stress. Roots play a crucial role in regulating plant development under drought stress. In this review, we have summarized the studies on the role of roots and root-mediated plant responses. We have also discussed the importance of root system architecture (RSA) and the various structural and anatomical changes that it undergoes to increase survival and productivity under drought. Various genes, transcription factors, and quantitative trait loci involved in regulating root growth and development are also discussed. A summarization of various instruments and software that can be used for high-throughput phenotyping in the field is also provided in this review. More comprehensive studies are required to help build a detailed understanding of RSA and associated traits for breeding drought-resilient cultivars.
Collapse
Affiliation(s)
- Anmol Kalra
- Department of Botany, University of Delhi, North Campus, Delhi, India
| | - Shailendra Goel
- Department of Botany, University of Delhi, North Campus, Delhi, India
| | - Ani A Elias
- ICFRE - Institute of Forest Genetics and Tree Breeding (ICFRE - IFGTB), Coimbatore, India
| |
Collapse
|
6
|
Zhang W, Wu M, Zhong X, Liu Y, Yang X, Cai W, Zhu K, Zhang H, Gu J, Wang Z, Liu L, Zhang J, Yang J. Involvement of brassinosteroids and abscisic acid in spikelet degeneration in rice under soil drying during meiosis. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1580-1600. [PMID: 38035729 DOI: 10.1093/jxb/erad461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/28/2023] [Indexed: 12/02/2023]
Abstract
Spikelet degeneration in rice (Oryza sativa L.) is a serious physiological defect, and can be regulated by soil moisture status and phytohormones. This study investigated the possibility that brassinosteroids (BRs) in collaboration with abscisic acid (ABA) are involved in mediating the effect of soil drying during meiosis on spikelet degeneration in rice. Three rice cultivars were field grown and three irrigation regimes including well watered (WW), moderate soil drying (MD), and severe soil drying (SD) were imposed during meiosis. MD significantly decreased spikelet degeneration in comparison with WW, due mainly to the alleviation in oxidative damage via enhancing ascorbate-glutathione (AsA-GSH) cycle activity in young panicles, and SD exhibited the opposite effects. Enhanced AsA-GSH cycle strength, decreased oxidative stress, and spikelet degeneration rate were closely associated with the synergistically elevated BR and ABA levels in young panicles in MD. In contrast, low BR and excessive ABA levels led to an increase in spikelet degeneration in SD. The three cultivars exhibited the same tendencies. The intrinsic link among AsA-GSH cycle, oxidative stress, spikelet degeneration rate, and BR and ABA levels was further verified by using transgenic rice lines and chemical regulators. BRs or ABA play a unique role in regulating spikelet degeneration. Synergistically increased BR and ABA levels in MD could work together to strengthen AsA-GSH cycle activity, leading to a reduction in oxidative damage and spikelet degeneration. On the other hand, a severe imbalance between low BR and excessive ABA levels may have contributed to the opposite effects in SD.
Collapse
Affiliation(s)
- Weiyang Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Mengyin Wu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Xiaohan Zhong
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Ying Liu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Xinxin Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Wei Cai
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Kuanyu Zhu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Hao Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Junfei Gu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Zhiqin Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Lijun Liu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Hong Kong 999077, China
| | - Jianchang Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| |
Collapse
|
7
|
Shi J, Zhao M, Zhang F, Feng D, Yang S, Xue Y, Liu Y. Physiological Mechanism through Which Al Toxicity Inhibits Peanut Root Growth. PLANTS (BASEL, SWITZERLAND) 2024; 13:325. [PMID: 38276782 PMCID: PMC10820445 DOI: 10.3390/plants13020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/18/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024]
Abstract
Al (Aluminum) poisoning is a significant limitation to crop yield in acid soil. However, the physiological process involved in the peanut root response to Al poisoning has not been clarified yet and requires further research. In order to investigate the influence of Al toxicity stress on peanut roots, this study employed various methods, including root phenotype analysis, scanning of the root, measuring the physical response indices of the root, measurement of the hormone level in the root, and quantitative PCR (qPCR). This research aimed to explore the physiological mechanism underlying the reaction of peanut roots to Al toxicity. The findings revealed that Al poisoning inhibits the development of peanut roots, resulting in reduced biomass, length, surface area, and volume. Al also significantly affects antioxidant oxidase activity and proline and malondialdehyde contents in peanut roots. Furthermore, Al toxicity led to increased accumulations of Al and Fe in peanut roots, while the contents of zinc (Zn), cuprum (Cu), manganese (Mn), kalium (K), magnesium (Mg), and calcium (Ca) decreased. The hormone content and related gene expression in peanut roots also exhibited significant changes. High concentrations of Al trigger cellular defense mechanisms, resulting in differentially expressed antioxidase genes and enhanced activity of antioxidases to eliminate excessive ROS (reactive oxygen species). Additionally, the differential expression of hormone-related genes in a high-Al environment affects plant hormones, ultimately leading to various negative effects, for example, decreased biomass of roots and hindered root development. The purpose of this study was to explore the physiological response mechanism of peanut roots subjected to aluminum toxicity stress, and the findings of this research will provide a basis for cultivating Al-resistant peanut varieties.
Collapse
Affiliation(s)
- Jianning Shi
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Min Zhao
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Feng Zhang
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Didi Feng
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shaoxia Yang
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yingbin Xue
- Department of Agronomy, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Ying Liu
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| |
Collapse
|
8
|
Sharma A, Gupta A, Ramakrishnan M, Ha CV, Zheng B, Bhardwaj M, Tran LSP. Roles of abscisic acid and auxin in plants during drought: A molecular point of view. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 204:108129. [PMID: 37897894 DOI: 10.1016/j.plaphy.2023.108129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/29/2023] [Accepted: 10/19/2023] [Indexed: 10/30/2023]
Abstract
Plant responses to drought are mediated by hormones like ABA (abscisic acid) and auxin. These hormones regulate plant drought responses by modulating various physiological and biological processes via cell signaling. ABA accumulation and signaling are central to plant drought responses. Auxin also regulates plant adaptive responses to drought, especially via signal transduction mediated by the interaction between ABA and auxin. In this review, we explored the interactive roles of ABA and auxin in the modulation of stomatal movement, root traits and accumulation of reactive oxygen species associated with drought tolerance.
Collapse
Affiliation(s)
- Anket Sharma
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA; State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Aarti Gupta
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA.
| | - Muthusamy Ramakrishnan
- State Key Laboratory of Tree Genetics and Breeding, Co-Innovation Center for Sustainable Forestry in Southern China, Bamboo Research Institute, Key Laboratory of National Forestry and Grassland Administration on Subtropical Forest Biodiversity Conservation, School of Life Sciences, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - Chien Van Ha
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Mamta Bhardwaj
- Department of Botany, Hindu Girls College, Maharshi Dayanand University, Sonipat, 131001, India
| | - Lam-Son Phan Tran
- Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA.
| |
Collapse
|
9
|
Wang R, Zhang Z, Wang H, Chen Y, Zhang M. Soil Water Deficit Reduced Root Hydraulic Conductivity of Common Reed ( Phragmites australis). PLANTS (BASEL, SWITZERLAND) 2023; 12:3543. [PMID: 37896007 PMCID: PMC10610267 DOI: 10.3390/plants12203543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/02/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023]
Abstract
Alterations in root hydraulics in response to varying moisture conditions remain a subject of debate. In our investigation, we subjected common reeds (Phragmites australis) to a 45-day treatment with four distinct soil moisture levels. The findings unveiled that, in response to drought stress, the total root length, surface area, volume, and average diameter exhibited varying degrees of reduction. Anatomically, drought caused a reduction in root diameter (RD), cortex thickness (CT), vessel diameter (VD), and root cross-sectional area (RCA). A decrease in soil moisture significantly reduced both whole- and single-root hydraulic conductivity (Lpwr, Lpsr). The total length, surface area, volume, and average diameter of the reed root system were significantly correlated with Lpwr, while RD, CT, and RCA were significantly correlated with Lpsr. A decrease in soil moisture content significantly influenced root morphological and anatomical characteristics, which, in turn, altered Lpr, and the transcriptome results suggest that this may be associated with the variation in the expression of abscisic acid (ABA) and aquaporins (AQPs) genes. Our initial findings address a gap in our understanding of reed hydraulics, offering fresh theoretical insights into how herbaceous plants respond to external stressors.
Collapse
Affiliation(s)
- Ruiqing Wang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China; (R.W.); (H.W.)
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing 100083, China
- Wetland Research Centre, Beijing Forestry University, Beijing 100083, China
| | - Zhenming Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China; (R.W.); (H.W.)
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing 100083, China
- Wetland Research Centre, Beijing Forestry University, Beijing 100083, China
| | - Haoyue Wang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China; (R.W.); (H.W.)
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing 100083, China
- Wetland Research Centre, Beijing Forestry University, Beijing 100083, China
| | - Yinglong Chen
- The UWA Institute of Agriculture, School of Agriculture and Environment, The University of Western Australia, Perth, WA 6001, Australia;
| | - Mingxiang Zhang
- School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China; (R.W.); (H.W.)
- The Key Laboratory of Ecological Protection in the Yellow River Basin of National Forestry and Grassland Administration, Beijing 100083, China
- State Key Laboratory of Efficient Production of Forest Resources, Beijing 100083, China
| |
Collapse
|
10
|
Chen X, Chen H, Shen T, Luo Q, Xu M, Yang Z. The miRNA-mRNA Regulatory Modules of Pinus massoniana Lamb. in Response to Drought Stress. Int J Mol Sci 2023; 24:14655. [PMID: 37834103 PMCID: PMC10572226 DOI: 10.3390/ijms241914655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/20/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
Masson pine (Pinus massoniana Lamb.) is a major fast-growing woody tree species and pioneer species for afforestation in barren sites in southern China. However, the regulatory mechanism of gene expression in P. massoniana under drought remains unclear. To uncover candidate microRNAs, their expression profiles, and microRNA-mRNA interactions, small RNA-seq was used to investigate the transcriptome from seedling roots under drought and rewatering in P. massoniana. A total of 421 plant microRNAs were identified. Pairwise differential expression analysis between treatment and control groups unveiled 134, 156, and 96 differential expressed microRNAs at three stages. These constitute 248 unique microRNAs, which were subsequently categorized into six clusters based on their expression profiles. Degradome sequencing revealed that these 248 differentially expressed microRNAs targeted 2069 genes. Gene Ontology enrichment analysis suggested that these target genes were related to translational and posttranslational regulation, cell wall modification, and reactive oxygen species scavenging. miRNAs such as miR482, miR398, miR11571, miR396, miR166, miRN88, and miRN74, along with their target genes annotated as F-box/kelch-repeat protein, 60S ribosomal protein, copper-zinc superoxide dismutase, luminal-binding protein, S-adenosylmethionine synthase, and Early Responsive to Dehydration Stress may play critical roles in drought response. This study provides insights into microRNA responsive to drought and rewatering in Masson pine and advances the understanding of drought tolerance mechanisms in Pinus.
Collapse
Affiliation(s)
- Xinhua Chen
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, 682 Guangshan Road 1, Guangzhou 510520, China;
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China;
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| | - Hu Chen
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| | - Tengfei Shen
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China;
| | - Qunfeng Luo
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| | - Meng Xu
- Co-Innovation Center for Sustainable Forestry in Southern China, Key Laboratory of Forest Genetics and Biotechnology Ministry of Education, College of Forestry, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China;
| | - Zhangqi Yang
- Engineering Research Center of Masson Pine of State Forestry Administration, Engineering Research Center of Masson Pine of Guangxi, Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Guangxi Forestry Research Institute, 23 Yongwu Road, Nanning 530002, China; (H.C.); (Q.L.)
| |
Collapse
|
11
|
Liu Y, Pan Y, Li J, Chen J, Yang S, Zhao M, Xue Y. Transcriptome Sequencing Analysis of Root in Soybean Responding to Mn Poisoning. Int J Mol Sci 2023; 24:12727. [PMID: 37628908 PMCID: PMC10454639 DOI: 10.3390/ijms241612727] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Manganese (Mn) is among one of the essential trace elements for normal plant development; however, excessive Mn can cause plant growth and development to be hindered. Nevertheless, the regulatory mechanisms of plant root response to Mn poisoning remain unclear. In the present study, results revealed that the root growth was inhibited when exposed to Mn poisoning. Physiological results showed that the antioxidase enzyme activities (peroxidase, superoxide dismutase, ascorbate peroxidase, and catalase) and the proline, malondialdehyde, and soluble sugar contents increased significantly under Mn toxicity stress (100 μM Mn), whereas the soluble protein and four hormones' (indolebutyric acid, abscisic acid, indoleacetic acid, and gibberellic acid 3) contents decreased significantly. In addition, the Mn, Fe, Na, Al, and Se contents in the roots increased significantly, whereas those of Mg, Zn, and K decreased significantly. Furthermore, RNA sequencing (RNA-seq) analysis was used to test the differentially expressed genes (DEGs) of soybean root under Mn poisoning. The results found 45,274 genes in soybean root and 1430 DEGs under Mn concentrations of 5 (normal) and 100 (toxicity) μM. Among these DEGs, 572 were upregulated and 858 were downregulated, indicating that soybean roots may initiate complex molecular regulatory mechanisms on Mn poisoning stress. The results of quantitative RT-PCR indicated that many DEGs were upregulated or downregulated markedly in the roots, suggesting that the regulation of DEGs may be complex. Therefore, the regulatory mechanism of soybean root on Mn toxicity stress is complicated. Present results lay the foundation for further study on the molecular regulation mechanism of function genes involved in regulating Mn tolerance traits in soybean roots.
Collapse
Affiliation(s)
- Ying Liu
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yuhu Pan
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Jianyu Li
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Jingye Chen
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Shaoxia Yang
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Min Zhao
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| | - Yingbin Xue
- Department of Agronomy, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China
| |
Collapse
|
12
|
Geng S, Lin Z, Xie S, Xiao J, Wang H, Zhao X, Zhou Y, Duan L. Ethylene enhanced waterlogging tolerance by changing root architecture and inducing aerenchyma formation in maize seedlings. JOURNAL OF PLANT PHYSIOLOGY 2023; 287:154042. [PMID: 37348450 DOI: 10.1016/j.jplph.2023.154042] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/11/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
Waterlogging negatively affects maize growth and yield. In this study, we found that ethylene played a vital role in plant adaptation to waterlogging. ET promotes better growth in seedlings under waterlogging conditions by altering root architecture and increasing lateral root formation by 42.1%. What's more, plants with high endogenous ethylene levels exhibited reduced sensitivity to waterlogging stress. ET also induced the formation of aerenchyma, a specialized tissue that facilitates gas exchange, in a different pattern compared to aerenchyma formed under waterlogging. Aerenchyma induced by ET was mainly located in the medial cortex of the roots and was not prone to decay. ethylene inhibited root elongation under normal conditions, but this inhibition was not alleviated under waterlogging stress. Upon activation of the ET signaling pathway, the transcription factor EREB90 promoted aerenchyma formation by enhancing the programmed cell death process. Overexpression of EREB90 resulted in increased waterlogging tolerance compared to wild type plants. Our findings suggest that pre-treatment of maize seedlings with ET before waterlogging stress can trigger the programmed cell death process and induce aerenchyma formation, thus improving waterlogging resistance.
Collapse
Affiliation(s)
- Shiying Geng
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; State Key Laboratory of Plant Environmental Resilience, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China
| | - Ziqing Lin
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; State Key Laboratory of Plant Environmental Resilience, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China
| | - Shipeng Xie
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; State Key Laboratory of Plant Environmental Resilience, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China
| | - Jinzhong Xiao
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; State Key Laboratory of Plant Environmental Resilience, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China
| | - Haiyan Wang
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China
| | - Xi Zhao
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China
| | - Yuyi Zhou
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; State Key Laboratory of Plant Environmental Resilience, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China.
| | - Liusheng Duan
- Engineering Research Center of Plant Growth Regulator, Ministry of Education & College of Agronomy and Biotechnology, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; State Key Laboratory of Plant Environmental Resilience, China Agricultural University, No. 2 Yuanmingyuan Xi Lu, Haidian District, Beijing, 100193, China; College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| |
Collapse
|
13
|
Fresno DH, Munné-Bosch S. Organ-specific responses during acclimation of mycorrhizal and non-mycorrhizal tomato plants to a mild water stress reveal differential local and systemic hormonal and nutritional adjustments. PLANTA 2023; 258:32. [PMID: 37368074 PMCID: PMC10300162 DOI: 10.1007/s00425-023-04192-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 06/20/2023] [Indexed: 06/28/2023]
Abstract
MAIN CONCLUSION Tomato plant acclimation to a mild water stress implied tissue-specific hormonal and nutrient adjustments, being the root one of the main modulators of this response. Phytohormones are key regulators of plant acclimation to water stress. However, it is not yet clear if these hormonal responses follow specific patterns depending on the plant tissue. In this study, we evaluated the organ-specific physiological and hormonal responses to a 14 day-long mild water stress in tomato plants (Solanum lycopersicum cv. Moneymaker) in the presence or absence of the arbuscular mycorrhizal fungus Rhizoglomus irregulare, a frequently used microorganism in agriculture. Several physiological, production, and nutritional parameters were evaluated throughout the experiments. Additionally, endogenous hormone levels in roots, leaves, and fruits at different developmental stages were quantified by ultrahigh-performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS). Water deficit drastically reduced shoot growth, while it did not affect fruit production. In contrast, fruit production was enhanced by mycorrhization regardless of the water treatment. The main tissue affected by water stress was the root system, where huge rearrangements in different nutrients and stress-related and growth hormones took place. Abscisic acid content increased in every tissue and fruit developmental stage, suggesting a systemic response to drought. On the other hand, jasmonate and cytokinin levels were generally reduced upon water stress, although this response was dependent on the tissue and the hormonal form. Finally, mycorrhization improved plant nutritional status content of certain macro and microelements, specially at the roots and ripe fruits, while it affected jasmonate response in the roots. Altogether, our results suggest a complex response to drought that consists in systemic and local combined hormonal and nutrient responses.
Collapse
Affiliation(s)
- David H Fresno
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain
- Institute of Nutrition and Food Safety (INSA), Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain
| | - Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain.
- Institute of Nutrition and Food Safety (INSA), Faculty of Biology, University of Barcelona, 08028, Barcelona, Spain.
| |
Collapse
|
14
|
He W, Luo L, Xie R, Chai J, Wang H, Wang Y, Chen Q, Wu Z, Yang S, Li M, Lin Y, Zhang Y, Luo Y, Zhang Y, Tang H, Wang X. Transcriptome sequencing analyses uncover mechanisms of citrus rootstock seedlings under waterlogging stress. FRONTIERS IN PLANT SCIENCE 2023; 14:1198930. [PMID: 37324702 PMCID: PMC10264899 DOI: 10.3389/fpls.2023.1198930] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 05/08/2023] [Indexed: 06/17/2023]
Abstract
Citrus plants are sensitive to waterlogging, which can cause yield reduction. Their production heavily depends on the rootstock being used for grafting of scion cultivars, and the rootstock is the first organ to be affected by waterlogging stress. However, the underlying molecular mechanisms of waterlogging stress tolerance remain elusive. In this study we investigated the stress response of two waterlogging-tolerant citrus varieties (Citrus junos Sieb ex Tanaka cv. Pujiang Xiangcheng and Ziyang Xiangcheng), and one waterlogging-sensitive variety (red tangerine) at the morphological, physiological, and genetic levels in leaf and root tissues of partially submerged plants. The results showed that waterlogging stress significantly decreased the SPAD value and root length but did not obviously affect the stem length and new root numbers. The malondialdehyde (MDA) content and the enzyme activities of superoxide dismutase (SOD), guaiacol peroxidase (POD), and catalase (CAT) were enhanced in the roots. The RNA-seq analysis revealed that the differentially expressed genes (DEGs) were mainly linked to 'cutin, suberine, and wax biosynthesis', 'diterpenoid biosynthesis', and 'glycerophospholipid metabolism' in the leaves, whereas were linked to 'flavonoid biosynthesis', 'biosynthesis of secondary metabolites and metabolic pathways' in the roots. Finally, we developed a working model based on our results to elucidate the molecular basis of waterlogging-responsive in citrus. Therefore, our data obtained in this study provided valuable genetic resources that will facilitate the breeding of citrus varieties with improved waterlogging tolerance.
Collapse
|
15
|
Sharma E, Bhatnagar A, Bhaskar A, Majee SM, Kieffer M, Kepinski S, Khurana P, Khurana JP. Stress-induced F-Box protein-coding gene OsFBX257 modulates drought stress adaptations and ABA responses in rice. PLANT, CELL & ENVIRONMENT 2023; 46:1207-1231. [PMID: 36404527 DOI: 10.1111/pce.14496] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 10/15/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
F-box (FB) proteins that form part of SKP1-CUL1-F-box (SCF) type of E3 ubiquitin ligases are important components of plant growth and development. Here we characterized OsFBX257, a rice FB protein-coding gene that is differentially expressed under drought conditions and other abiotic stresses. Population genomics analysis suggest that OsFBX257 shows high allelic diversity in aus accessions and has been under positive selection in some japonica, aromatic and indica cultivars. Interestingly, allelic variation at OsFBX257 in aus cultivar Nagina22 is associated with an alternatively spliced transcript. Conserved among land plants, OsFBX257 is a component of the SCF complex, can form homomers and interact molecularly with the 14-3-3 rice proteins GF14b and GF14c. OsFBX257 is co-expressed in a network involving protein kinases and phosphatases. We show that OsFBX257 can bind the kinases OsCDPK1 and OsSAPK2, and that its phosphorylation can be reversed by phosphatase OsPP2C08. OsFBX257 expression level modulates root architecture and drought stress tolerance in rice. OsFBX257 knockdown (OsFBX257KD ) lines show reduced total root length and depth, crown root number, panicle size and survival under stress. In contrast, its overexpression (OsFBX257OE ) increases root depth, leaf and grain length, number of panicles, and grain yield in rice. OsFBX257 is a promising breeding target for alleviating drought stress-induced damage in rice.
Collapse
Affiliation(s)
- Eshan Sharma
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Akanksha Bhatnagar
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Avantika Bhaskar
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Susmita M Majee
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Martin Kieffer
- Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Stefan Kepinski
- Faculty of Biological Sciences, University of Leeds, Leeds, UK
- Global Food and Environment Institute, University of Leeds, Leeds, UK
| | - Paramjit Khurana
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| | - Jitendra P Khurana
- Interdisciplinary Centre for Plant Genomics & Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, India
| |
Collapse
|
16
|
Wang X, Zhang Q, Luo J, Liu X, Jiang J. Major-effect quantitative trait locus qLKR4.1 encodes a phospholipase Dδ protein associated with low-K + stress tolerance by promoting root length. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 136:88. [PMID: 36973446 DOI: 10.1007/s00122-023-04351-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
qLKR4.1, controlling low K+ resistance in tomato, was fine-mapped to an interval of 67.5 kb on chromosome A04, and one gene encoding phospholipase Dδ was identified as a candidate gene. In plants, changes in root length are an important morphological response to low K+ (LK) stress; however, the underlying genetics in tomato remain unclear. Here, we combined bulked segregant analysis-based whole-genome sequencing, single-nucleotide polymorphism haplotyping, and fine genetic mapping to identify a candidate gene as a major-effect quantitative trait loci (QTL), i.e., qLKR4.1, which was associated with LK tolerance due to increased root elongation in the tomato line JZ34. Through multiple analyses, we found that Solyc04g082000 is the most likely candidate for qLKR4.1, which encodes phospholipase Dδ (PLDδ). Increased root elongation under LK in JZ34 may be attributed to a non-synonymous single-nucleotide polymorphism in the Ca2+-binding domain region of this gene. Solyc04g082000 increases root length through its PLDδ activity. Silencing of Solyc04g082000Arg in JZ34 led to a significant decrease in root length compared with silencing of Solyc04g082000His allele in JZ18 under LK conditions. Mutation of a Solyc04g082000 homologue in Arabidopsis, pldδ, resulted in decreased primary root lengths under LK conditions, compared to the wild type. Transgenic tomato expressing the qLKR4.1Arg allele from JZ34 exhibited a significant increase in root length compared with the wild type expressing the allele from JZ18 under LK conditions. Taken together, our results confirm that the PLDδ gene Solyc04g082000 exerts important functions in increasing tomato root length and LK tolerance.
Collapse
Affiliation(s)
- Xi Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, Liaoning, China
| | - Qiongqiong Zhang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, Liaoning, China
| | - Junfeng Luo
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, Liaoning, China
| | - Xin Liu
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, Liaoning, China.
- Key Laboratory of Protected Horticulture of Education Ministry, Shenyang, 110866, Liaoning, China.
| | - Jing Jiang
- College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, Liaoning, China.
- Key Laboratory of Protected Horticulture of Education Ministry, Shenyang, 110866, Liaoning, China.
| |
Collapse
|
17
|
Qin H, Wang J, Zhou J, Qiao J, Li Y, Quan R, Huang R. Abscisic acid promotes auxin biosynthesis to inhibit primary root elongation in rice. PLANT PHYSIOLOGY 2023; 191:1953-1967. [PMID: 36535001 PMCID: PMC10022642 DOI: 10.1093/plphys/kiac586] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 11/19/2022] [Indexed: 06/01/2023]
Abstract
Soil compaction is a global problem causing inadequate rooting and poor yield in crops. Accumulating evidence indicates that phytohormones coordinately regulate root growth via regulating specific growth processes in distinct tissues. However, how abscisic acid (ABA) signaling translates into auxin production to control root growth during adaptation to different soil environments is still unclear. In this study, we report that ABA has biphasic effects on primary root growth in rice (Oryza sativa) through an auxin biosynthesis-mediated process, causing suppression of root elongation and promotion of root swelling in response to soil compaction. We found that ABA treatment induced the expression of auxin biosynthesis genes and auxin accumulation in roots. Conversely, blocking auxin biosynthesis reduced ABA sensitivity in roots, showing longer and thinner primary roots with larger root meristem size and smaller root diameter. Further investigation revealed that the transcription factor basic region and leucine zipper 46 (OsbZIP46), involved in ABA signaling, can directly bind to the YUCCA8/rice ethylene-insensitive 7 (OsYUC8/REIN7) promoter to activate its expression, and genetic analysis revealed that OsYUC8/REIN7 is located downstream of OsbZIP46. Moreover, roots of mutants defective in ABA or auxin biosynthesis displayed the enhanced ability to penetrate compacted soil. Thus, our results disclose the mechanism in which ABA employs auxin as a downstream signal to modify root elongation and radial expansion, resulting in short and swollen roots impaired in their ability to penetrate compacted soil. These findings provide avenues for breeders to select crops resilient to soil compaction.
Collapse
Affiliation(s)
- Hua Qin
- Authors for correspondence: (H.Q.); (R.H.)
| | | | | | - Jinzhu Qiao
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuxiang Li
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ruidang Quan
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China
| | | |
Collapse
|
18
|
Li J, Xu P, Zhang B, Song Y, Wen S, Bai Y, Ji L, Lai Y, He G, Zhang D. Paclobutrazol Promotes Root Development of Difficult-to-Root Plants by Coordinating Auxin and Abscisic Acid Signaling Pathways in Phoebe bournei. Int J Mol Sci 2023; 24:ijms24043753. [PMID: 36835160 PMCID: PMC9958905 DOI: 10.3390/ijms24043753] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/09/2023] [Accepted: 02/09/2023] [Indexed: 02/16/2023] Open
Abstract
Phoebe bournei is a rare and endangered plant endemic to China with higher-value uses in essential oil and structural wood production. Its seedlings are prone to death because of its undeveloped system. Paclobutrazol (PBZ) can improve root growth and development in certain plants, but its concentration effect and molecular mechanism remain unclear. Here, we studied the physiological and molecular mechanisms by which PBZ regulates root growth under different treatments. We found that, with moderate concentration treatment (MT), PBZ significantly increased the total root length (69.90%), root surface area (56.35%), and lateral root number (47.17%). IAA content was the highest at MT and was 3.83, 1.86, and 2.47 times greater than the control, low, and high-concentration treatments. In comparison, ABA content was the lowest and reduced by 63.89%, 30.84%, and 44.79%, respectively. The number of upregulated differentially expressed genes (DEGs) induced at MT was more than that of down-regulated DEGs, which enriched 8022 DEGs in response to PBZ treatments. WGCNA showed that PBZ-responsive genes were significantly correlated with plant hormone content and involved in plant hormone signal transduction and MAPK signal pathway-plant pathways, which controls root growth. The hub genes are observably associated with auxin, abscisic acid syntheses, and signaling pathways, such as PINs, ABCBs, TARs, ARFs, LBDs, and PYLs. We constructed a model which showed PBZ treatments mediated the antagonism interaction of IAA and ABA to regulate the root growth in P. bournei. Our result provides new insights and molecular strategies for solving rare plants' root growth problems.
Collapse
Affiliation(s)
- Jing Li
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
| | - Peiyue Xu
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
| | - Baohong Zhang
- Department of Biology, East Carolina University, Greenville, NC 27858, USA
| | - Yanyan Song
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
| | - Shizhi Wen
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
| | - Yujie Bai
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
| | - Li Ji
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
| | - Yong Lai
- School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
| | - Gongxiu He
- School of Forestry, Central South University of Forestry and Technology, Changsha 410004, China
- Key Laboratory of Soil and Water Conservation and Desertification Combating of Hunan Province, Changsha 410004, China
- Correspondence: (G.H.); (D.Z.); Tel.: +86-138-7316-0370 (G.H.); +86-150-0387-8368 (D.Z.)
| | - Dangquan Zhang
- School of Forestry, Henan Agricultural University, Zhengzhou 450002, China
- Correspondence: (G.H.); (D.Z.); Tel.: +86-138-7316-0370 (G.H.); +86-150-0387-8368 (D.Z.)
| |
Collapse
|
19
|
Fresno DH, Solé‐Corbatón H, Munné‐Bosch S. Water stress protection by the arbuscular mycorrhizal fungus Rhizoglomus irregulare involves physiological and hormonal responses in an organ-specific manner. PHYSIOLOGIA PLANTARUM 2023; 175:e13854. [PMID: 36651309 PMCID: PMC10108154 DOI: 10.1111/ppl.13854] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 12/23/2022] [Accepted: 01/09/2023] [Indexed: 06/15/2023]
Abstract
Arbuscular mycorrhizal fungi may alleviate water stress in plants. Although several protection mechanisms have already been described, little information is available on how these fungi influence the hormonal response to water stress at an organ-specific level. In this study, we evaluated the physiological and hormonal responses to water stress in above and below-ground tissues of the legume grass Trifolium repens colonized by the arbuscular mycorrhizal fungus Rhizoglomus irregulare. Plants were subjected to progressive water stress and recovery. Different leaf and root physiological parameters, as well as phytohormone levels, were quantified. Water-stressed mycorrhizal plants showed an improved water status and no photoinhibition compared to uncolonized individuals, while some stress markers like α-tocopherol and malondialdehyde content, an indicator of the extent of lipid peroxidation, transiently increased in roots, but not in leaves. Water stress protection exerted by mycorrhiza appeared to be related to a differential root-to-shoot redox signaling, probably mediated by jasmonates, and mycorrhization enhanced the production of the cytokinin trans-zeatin in both roots and leaves. Overall, our results suggest that mycorrhization affects physiological, redox and hormonal responses to water stress at an organ-specific level, which may eventually modulate the final protection of the host from water stress.
Collapse
Affiliation(s)
- David H. Fresno
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of BiologyUniversity of BarcelonaBarcelonaSpain
- Institute of Nutrition and Food Safety (INSA), Faculty of BiologyUniversity of BarcelonaBarcelonaSpain
| | - Helena Solé‐Corbatón
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of BiologyUniversity of BarcelonaBarcelonaSpain
| | - Sergi Munné‐Bosch
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of BiologyUniversity of BarcelonaBarcelonaSpain
- Institute of Nutrition and Food Safety (INSA), Faculty of BiologyUniversity of BarcelonaBarcelonaSpain
| |
Collapse
|
20
|
Kou X, Han W, Kang J. Responses of root system architecture to water stress at multiple levels: A meta-analysis of trials under controlled conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:1085409. [PMID: 36570905 PMCID: PMC9780461 DOI: 10.3389/fpls.2022.1085409] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 11/28/2022] [Indexed: 05/31/2023]
Abstract
Plants are exposed to increasingly severe drought events and roots play vital roles in maintaining plant survival, growth, and reproduction. A large body of literature has investigated the adaptive responses of root traits in various plants to water stress and these studies have been reviewed in certain groups of plant species at a certain scale. Nevertheless, these responses have not been synthesized at multiple levels. This paper screened over 2000 literatures for studies of typical root traits including root growth angle, root depth, root length, root diameter, root dry weight, root-to-shoot ratio, root hair length and density and integrates their drought responses at genetic and morphological scales. The genes, quantitative trait loci (QTLs) and hormones that are involved in the regulation of drought response of the root traits were summarized. We then statistically analyzed the drought responses of root traits and discussed the underlying mechanisms. Moreover, we highlighted the drought response of 1-D and 2-D root length density (RLD) distribution in the soil profile. This paper will provide a framework for an integrated understanding of root adaptive responses to water deficit at multiple scales and such insights may provide a basis for selection and breeding of drought tolerant crop lines.
Collapse
Affiliation(s)
- Xinyue Kou
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Weihua Han
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agriculture Sciences, Beijing, China
| | - Jian Kang
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
| |
Collapse
|
21
|
Ranjan A, Sinha R, Singla-Pareek SL, Pareek A, Singh AK. Shaping the root system architecture in plants for adaptation to drought stress. PHYSIOLOGIA PLANTARUM 2022; 174:e13651. [PMID: 35174506 DOI: 10.1111/ppl.13651] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/05/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Root system architecture plays an important role in plant adaptation to drought stress. The root system architecture (RSA) consists of several structural features, which includes number and length of main and lateral roots along with the density and length of root hairs. These features exhibit plasticity under water-limited environments and could be critical to developing crops with efficient root systems for adaptation under drought. Recent advances in the omics approaches have significantly improved our understanding of the regulatory mechanisms of RSA remodeling under drought and the identification of genes and other regulatory elements. Plant response to drought stress at physiological, morphological, biochemical, and molecular levels in root cells is regulated by various phytohormones and their crosstalk. Stress-induced reactive oxygen species play a significant role in regulating root growth and development under drought stress. Several transcription factors responsible for the regulation of RSA under drought have proven to be beneficial for developing drought tolerant crops. Molecular breeding programs for developing drought-tolerant crops have been greatly benefitted by the availability of quantitative trait loci (QTLs) associated with the RSA regulation. In the present review, we have discussed the role of various QTLs, signaling components, transcription factors, microRNAs and crosstalk among various phytohormones in shaping RSA and present future research directions to better understand various factors involved in RSA remodeling for adaptation to drought stress. We believe that the information provided herein may be helpful in devising strategies to develop crops with better RSA for efficient uptake and utilization of water and nutrients under drought conditions.
Collapse
Affiliation(s)
- Alok Ranjan
- School of Genetic Engineering, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Ragini Sinha
- School of Genetic Engineering, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Sneh L Singla-Pareek
- Plant Stress Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Ashwani Pareek
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
- National Agri-Food Biotechnology Institute, Mohali, Punjab, India
| | - Anil Kumar Singh
- School of Genetic Engineering, ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
- ICAR-National Institute for Plant Biotechnology, LBS Centre, New Delhi, India
| |
Collapse
|
22
|
Liu X, Wang X, Liu P, Bao X, Hou X, Yang M, Zhen W. Rehydration Compensation of Winter Wheat Is Mediated by Hormone Metabolism and De-Peroxidative Activities Under Field Conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:823846. [PMID: 35283926 PMCID: PMC8908233 DOI: 10.3389/fpls.2022.823846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
Water deficit and rehydration frequently occur during wheat cultivation. Previous investigations focused on the water deficit and many drought-responsive genes have been identified in winter wheat. However, the hormone-related metabolic responses and de-peroxidative activities associated with rehydration are largely unknown. In this study, leaves of two winter wheat cultivars, "Hengguan35" (HG, drought-tolerant cultivar) and "Shinong086" (SN, drought-sensitive cultivar), were used to investigate water deficit and the post-rehydration process. Rehydration significantly promoted wheat growth and postponed spike development. Quantifications of antioxidant enzymes, osmotic stress-related substances, and phytohormones revealed that rehydration alleviated the peroxidation and osmotic stress caused by water deficit in both cultivars. The wheat cultivar HG showed a better rehydration-compensation phenotype than SN. Phytohormones, including abscisic acid, gibberellin (GA), jasmonic acid (JA), and salicylic acid (SA), were detected using high-performance liquid chromatography and shown to be responsible for the rehydration process. A transcriptome analysis showed that differentially expressed genes related to rehydration were enriched in hormone metabolism- and de-peroxidative stress-related pathways. Suppression of genes associated with abscisic acid signaling transduction were much stronger in HG than in SN upon rehydration treatment. HG also kept a more balanced expression of genes involved in reactive oxygen species pathway than SN. In conclusion, we clarified the hormonal changes and transcriptional profiles of drought-resistant and -sensitive winter wheat cultivars in response to drought and rehydration, and we provided insights into the molecular processes involved in rehydration compensation.
Collapse
Affiliation(s)
- Xuejing Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, China
| | - Xiaodong Wang
- College of Plant Protection, Hebei Agricultural University, Baoding, China
| | - Pan Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, China
| | - Xiaoyuan Bao
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, China
| | - Xiaoyang Hou
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, China
| | - Mingming Yang
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Wenchao Zhen
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding, China
| |
Collapse
|
23
|
Muhammad Aslam M, Waseem M, Jakada BH, Okal EJ, Lei Z, Saqib HSA, Yuan W, Xu W, Zhang Q. Mechanisms of Abscisic Acid-Mediated Drought Stress Responses in Plants. Int J Mol Sci 2022; 23:ijms23031084. [PMID: 35163008 PMCID: PMC8835272 DOI: 10.3390/ijms23031084] [Citation(s) in RCA: 86] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 12/11/2022] Open
Abstract
Drought is one of the major constraints to rain-fed agricultural production, especially under climate change conditions. Plants evolved an array of adaptive strategies that perceive stress stimuli and respond to these stress signals through specific mechanisms. Abscisic acid (ABA) is a premier signal for plants to respond to drought and plays a critical role in plant growth and development. ABA triggers a variety of physiological processes such as stomatal closure, root system modulation, organizing soil microbial communities, activation of transcriptional and post-transcriptional gene expression, and metabolic alterations. Thus, understanding the mechanisms of ABA-mediated drought responses in plants is critical for ensuring crop yield and global food security. In this review, we highlighted how plants adjust ABA perception, transcriptional levels of ABA- and drought-related genes, and regulation of metabolic pathways to alter drought stress responses at both cellular and the whole plant level. Understanding the synergetic role of drought and ABA will strengthen our knowledge to develop stress-resilient crops through integrated advanced biotechnology approaches. This review will elaborate on ABA-mediated drought responses at genetic, biochemical, and molecular levels in plants, which is critical for advancement in stress biology research.
Collapse
Affiliation(s)
- Mehtab Muhammad Aslam
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Muhammad Waseem
- Department of Botany, University of Narowal, Narowal 51600, Pakistan;
- College of Horticulture, Hainan University, Haikou 570100, China
| | - Bello Hassan Jakada
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, College of Life Science, Fujian Agriculture and Forestry University, Ministry of Education, Fuzhou 350002, China;
| | - Eyalira Jacob Okal
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Zuliang Lei
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
| | - Hafiz Sohaib Ahmad Saqib
- Guangdong Provincial Key Laboratory of Marine Biology, College of Science, Shantou University, Shantou 515063, China;
| | - Wei Yuan
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Correspondence: (W.Y.); (Q.Z.)
| | - Weifeng Xu
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Qian Zhang
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- Correspondence: (W.Y.); (Q.Z.)
| |
Collapse
|