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Liao M, Ma Z, Kang Y, Zhang B, Gao X, Yu F, Yang P, Ke Y. ENHANCED DISEASE SUSCEPTIBILITY 1 promotes hydrogen peroxide scavenging to enhance rice thermotolerance. PLANT PHYSIOLOGY 2023:kiad257. [PMID: 37099454 PMCID: PMC10400032 DOI: 10.1093/plphys/kiad257] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/30/2023] [Accepted: 04/25/2023] [Indexed: 06/19/2023]
Abstract
Heat stress is a major factor limiting the production and geographic distribution of rice (Oryza sativa), and breeding rice varieties with tolerance to heat stress is of immense importance. Although extensive studies have revealed that reactive oxygen species (ROS) play a critical role in rice acclimation to heat stress, the molecular basis of rice controlling ROS homeostasis remains largely unclear. In this study, we discovered a novel heat stress-responsive strategy that orchestrates ROS homeostasis centering on an immune activator, rice ENHANCED DISEASE SUSCEPTIBILITY 1 (OsEDS1). OsEDS1, which confers heat stress tolerance, promotes hydrogen peroxide (H2O2) scavenging by stimulating catalase activity through the OsEDS1-catalase association. The loss-of-function mutation in OsEDS1 causes increased sensitivity to heat stress, whereas overexpression of OsEDS1 enhances thermotolerance. Furthermore, overexpression lines greatly improved rice tolerance to heat stress during the reproductive stage, which was associated with substantially increased seed setting, grain weight, and plant yield. Rice CATALASE C (OsCATC), whose activity is promoted by OsEDS1, degrades H2O2 to activate rice heat stress tolerance. Our findings greatly expand our understanding of heat stress responses in rice. We reveal a molecular framework that promotes heat tolerance through ROS homeostasis regulation, suggesting a theoretical basis and providing genetic resources for breeding heat-tolerant rice varieties.
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Affiliation(s)
- Min Liao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Zemin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Yuanrong Kang
- Department of plant pathology, university of Kentucky, Lexington, Ky, 40506, USA
| | - Biaoming Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Xuanlin Gao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Feng Yu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
| | - Pingfang Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Yinggen Ke
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
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52
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Khan AH, Min L, Ma Y, Zeeshan M, Jin S, Zhang X. High-temperature stress in crops: male sterility, yield loss and potential remedy approaches. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:680-697. [PMID: 36221230 PMCID: PMC10037161 DOI: 10.1111/pbi.13946] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 10/06/2022] [Accepted: 10/10/2022] [Indexed: 05/16/2023]
Abstract
Global food security is one of the utmost essential challenges in the 21st century in providing enough food for the growing population while coping with the already stressed environment. High temperature (HT) is one of the main factors affecting plant growth, development and reproduction and causes male sterility in plants. In male reproductive tissues, metabolic changes induced by HT involve carbohydrates, lipids, hormones, epigenetics and reactive oxygen species, leading to male sterility and ultimately reducing yield. Understanding the mechanism and genes involved in these pathways during the HT stress response will provide a new path to improve crops by using molecular breeding and biotechnological approaches. Moreover, this review provides insight into male sterility and integrates this with suggested strategies to enhance crop tolerance under HT stress conditions at the reproductive stage.
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Affiliation(s)
- Aamir Hamid Khan
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Ling Min
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Yizan Ma
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Muhammad Zeeshan
- Guangxi Key Laboratory for Agro‐Environment and Agro‐Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of AgricultureGuanxi UniversityNanningChina
| | - Shuangxia Jin
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Xianlong Zhang
- National Key Laboratory of Crop Genetic Improvement & Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
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53
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Mei W, Chen W, Wang Y, Liu Z, Dong Y, Zhang G, Deng H, Liu X, Lu X, Wang F, Chen G, Tang W, Xiao Y. Exogenous Kinetin Modulates ROS Homeostasis to Affect Heat Tolerance in Rice Seedlings. Int J Mol Sci 2023; 24:ijms24076252. [PMID: 37047228 PMCID: PMC10093947 DOI: 10.3390/ijms24076252] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 03/20/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023] Open
Abstract
Heat stress caused by rapidly changing climate warming has become a serious threat to crop growth worldwide. Exogenous cytokinin (CK) kinetin (KT) has been shown to have positive effects in improving salt and drought tolerance in plants. However, the mechanism of KT in heat tolerance in rice is poorly understood. Here, we found that exogenously adequate application of KT improved the heat stress tolerance of rice seedlings, with the best effect observed when the application concentration was 10−9 M. In addition, exogenous application of 10−9 M KT promoted the expression of CK-responsive OsRR genes, reduced membrane damage and reactive oxygen species (ROS) accumulation in rice, and increased the activity of antioxidant enzymes. Meanwhile, exogenous 10−9 M KT treatment significantly enhanced the expression of antioxidant enzymes, heat activation, and defense-related genes. In conclusion, exogenous KT treatment regulates heat tolerance in rice seedlings by modulating the dynamic balance of ROS in plants under heat stress.
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Ren H, Bao J, Gao Z, Sun D, Zheng S, Bai J. How rice adapts to high temperatures. FRONTIERS IN PLANT SCIENCE 2023; 14:1137923. [PMID: 37008476 PMCID: PMC10063981 DOI: 10.3389/fpls.2023.1137923] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/01/2023] [Indexed: 06/19/2023]
Abstract
High-temperature stress affects crop yields worldwide. Identifying thermotolerant crop varieties and understanding the basis for this thermotolerance would have important implications for agriculture, especially in the face of climate change. Rice (Oryza sativa) varieties have evolved protective strategies to acclimate to high temperature, with different thermotolerance levels. In this review, we examine the morphological and molecular effects of heat on rice in different growth stages and plant organs, including roots, stems, leaves and flowers. We also explore the molecular and morphological differences among thermotolerant rice lines. In addition, some strategies are proposed to screen new rice varieties for thermotolerance, which will contribute to the improvement of rice for agricultural production in the future.
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Affiliation(s)
- Huimin Ren
- 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, China
| | - Jingpei Bao
- 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, China
| | - Zhenxian Gao
- Shijiazhuang Academy of Agriculture and Forestry Sciences, Wheat Research Center, Shijiazhuang, China
| | - Daye 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, China
| | - Shuzhi Zheng
- 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, China
| | - Jiaoteng Bai
- 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, China
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55
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Cai Z, Wang G, Li J, Kong L, Tang W, Chen X, Qu X, Lin C, Peng Y, Liu Y, Deng Z, Ye Y, Wu W, Duan Y. Thermo-Sensitive Spikelet Defects 1 acclimatizes rice spikelet initiation and development to high temperature. PLANT PHYSIOLOGY 2023; 191:1684-1701. [PMID: 36517254 PMCID: PMC10022635 DOI: 10.1093/plphys/kiac576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 10/20/2022] [Indexed: 06/17/2023]
Abstract
Crop reproductive development is vulnerable to heat stress, and the genetic modulation of thermotolerance during the reproductive phase, especially the early stage, remains poorly understood. We isolated a Poaceae-specific FAR-RED ELONGATED HYPOCOTYLS3 (FHY3)/FAR-RED IMPAIRED RESPONSE1 (FAR1)family transcription factor, Thermo-sensitive Spikelet Defects 1 (TSD1), derived from transposase in rice (Oryza sativa) TSD1 was highly expressed in spikelets, induced by heat, and specifically enhanced the thermotolerance of spikelet morphogenesis. Disrupting TSD1 did not affect vegetative growth but markedly retarded spikelet initiation and development, as well as caused varying degrees of spikelet degeneration, depending on the temperature. Most tsd1 spikelets were normal at low temperature but gradually degenerated as temperature increased, and all disappeared at high temperature, leading to naked branches. TSD1 directly promoted the transcription of YABBY1 and YABBY3 and could physically interact with YABBY1 and three TOB proteins, YABBY5, YABBY4, and YABBY3. These YABBY proteins can form either homodimers or heterodimers and play an important role in spikelet morphogenesis, similar to TSD1. Notably, the knockout mutant yab5-ko and double mutant tsd1 yab5-ko resembled tsd1 in spikelet appearance and response to temperature, indicating that these genes likely participate in spikelet development through the cooperative TSD1-YABBY module. These findings reveal a distinctive function of FHY3/FAR1 family genes and a unique TSD1-YABBY complex to acclimate spikelet development to high temperature in rice, providing insight into the regulating pathway of enhancing thermotolerance in plant reproductive development.
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Affiliation(s)
- Zhengzheng Cai
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Gang Wang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Jieqiong Li
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Lan Kong
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Weiqi Tang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Xuequn Chen
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Xiaojie Qu
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Chenchen Lin
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Yulin Peng
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Yang Liu
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Zhanlin Deng
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Yanfang Ye
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Weiren Wu
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
| | - Yuanlin Duan
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops and Fujian Provincial Key Laboratory of Breeding by Design of Plant, Fujian Agriculture & Forestry University, Fuzhou 350002, China
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Hongal DA, Raju D, Kumar S, Talukdar A, Das A, Kumari K, Dash PK, Chinnusamy V, Munshi AD, Behera TK, Dey SS. Elucidating the role of key physio-biochemical traits and molecular network conferring heat stress tolerance in cucumber. FRONTIERS IN PLANT SCIENCE 2023; 14:1128928. [PMID: 36895870 PMCID: PMC9990136 DOI: 10.3389/fpls.2023.1128928] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Cucumber is an important vegetable crop grown worldwide and highly sensitive to prevailing temperature condition. The physiological, biochemical and molecular basis of high temperature stress tolerance is poorly understood in this model vegetable crop. In the present study, a set of genotypes with contrasting response under two different temperature stress (35/30°C and 40/35°C) were evaluated for important physiological and biochemical traits. Besides, expression of the important heat shock proteins (HSPs), aquaporins (AQPs), photosynthesis related genes was conducted in two selected contrasting genotypes at different stress conditions. It was established that tolerant genotypes were able to maintain high chlorophyll retention, stable membrane stability index, higher retention of water content, stability in net photosynthesis, high stomatal conductance and transpiration in combination with less canopy temperatures under high temperature stress conditions compared to susceptible genotypes and were considered as the key physiological traits associated with heat tolerance in cucumber. Accumulation of biochemicals like proline, protein and antioxidants like SOD, catalase and peroxidase was the underlying biochemical mechanisms for high temperature tolerance. Upregulation of photosynthesis related genes, signal transduction genes and heat responsive genes (HSPs) in tolerant genotypes indicate the molecular network associated with heat tolerance in cucumber. Among the HSPs, higher accumulation of HSP70 and HSP90 were recorded in the tolerant genotype, WBC-13 under heat stress condition indicating their critical role. Besides, Rubisco S, Rubisco L and CsTIP1b were upregulated in the tolerant genotypes under heat stress condition. Therefore, the HSPs in combination with photosynthetic and aquaporin genes were the underlying important molecular network associated with heat stress tolerance in cucumber. The findings of the present study also indicated negative feedback of G-protein alpha unit and oxygen evolving complex in relation to heat stress tolerance in cucumber. These results indicate that the thermotolerant cucumber genotypes enhanced physio-biochemical and molecular adaptation under high-temperature stress condition. This study provides foundation to design climate smart genotypes in cucumber through integration of favorable physio-biochemical traits and understanding the detailed molecular network associated with heat stress tolerance in cucumber.
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Affiliation(s)
- Dhananjay A. Hongal
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Dhandapani Raju
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Sudhir Kumar
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Akshay Talukdar
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Anjan Das
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Khushboo Kumari
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Prasanta K. Dash
- ICAR-National Institute for Plant Biotechnology, New Delhi, India
| | - Viswanathan Chinnusamy
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Anilabha Das Munshi
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Tusar Kanti Behera
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi, India
- ICAR-Indian Institute of Vegetable Research, Varanasi, India
| | - Shyam Sundar Dey
- Division of Vegetable Science, ICAR-Indian Agricultural Research Institute, New Delhi, India
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57
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Kolupaev YE, Yemets AI, Yastreb TO, Blume YB. The role of nitric oxide and hydrogen sulfide in regulation of redox homeostasis at extreme temperatures in plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1128439. [PMID: 36824204 PMCID: PMC9941552 DOI: 10.3389/fpls.2023.1128439] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Nitric oxide and hydrogen sulfide, as important signaling molecules (gasotransmitters), are involved in many functions of plant organism, including adaptation to stress factors of various natures. As redox-active molecules, NO and H2S are involved in redox regulation of functional activity of many proteins. They are also involved in maintaining cell redox homeostasis due to their ability to interact directly and indirectly (functionally) with ROS, thiols, and other molecules. The review considers the involvement of nitric oxide and hydrogen sulfide in plant responses to low and high temperatures. Particular attention is paid to the role of gasotransmitters interaction with other signaling mediators (in particular, with Ca2+ ions and ROS) in the formation of adaptive responses to extreme temperatures. Pathways of stress-induced enhancement of NO and H2S synthesis in plants are considered. Mechanisms of the NO and H2S effect on the activity of some proteins of the signaling system, as well as on the state of antioxidant and osmoprotective systems during adaptation to stress temperatures, were analyzed. Possibilities of practical use of nitric oxide and hydrogen sulfide donors as inductors of plant adaptive responses are discussed.
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Affiliation(s)
- Yuriy E. Kolupaev
- Yuriev Plant Production Institute, National Academy of Agrarian Sciences of Ukraine, Kharkiv, Ukraine
| | - Alla I. Yemets
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Tetiana O. Yastreb
- Yuriev Plant Production Institute, National Academy of Agrarian Sciences of Ukraine, Kharkiv, Ukraine
| | - Yaroslav B. Blume
- Institute of Food Biotechnology and Genomics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Reyes-Rosales A, Cabrales-Orona G, Martínez-Gallardo NA, Sánchez-Segura L, Padilla-Escamilla JP, Palmeros-Suárez PA, Délano-Frier JP. Identification of genetic and biochemical mechanisms associated with heat shock and heat stress adaptation in grain amaranths. FRONTIERS IN PLANT SCIENCE 2023; 14:1101375. [PMID: 36818889 PMCID: PMC9932720 DOI: 10.3389/fpls.2023.1101375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Heat stress is poised to become a major factor negatively affecting plant performance worldwide. In terms of world food security, increased ambient temperatures are poised to reduce yields in cereals and other economically important crops. Grain amaranths are known to be productive under poor and/or unfavorable growing conditions that significantly affect cereals and other crops. Several physiological and biochemical attributes have been recognized to contribute to this favorable property, including a high water-use efficiency and the activation of a carbon starvation response. This study reports the behavior of the three grain amaranth species to two different stress conditions: short-term exposure to heat shock (HS) conditions using young plants kept in a conditioned growth chamber or long-term cultivation under severe heat stress in greenhouse conditions. The latter involved exposing grain amaranth plants to daylight temperatures that hovered around 50°C, or above, for at least 4 h during the day and to higher than normal nocturnal temperatures for a complete growth cycle in the summer of 2022 in central Mexico. All grain amaranth species showed a high tolerance to HS, demonstrated by a high percentage of recovery after their return to optimal growing conditions. The tolerance observed coincided with increased expression levels of unknown function genes previously shown to be induced by other (a)biotic stress conditions. Included among them were genes coding for RNA-binding and RNA-editing proteins, respectively. HS tolerance was also in accordance with favorable changes in several biochemical parameters usually induced in plants in response to abiotic stresses. Conversely, exposure to a prolonged severe heat stress seriously affected the vegetative and reproductive development of all three grain amaranth species, which yielded little or no seed. The latter data suggested that the usually stress-tolerant grain amaranths are unable to overcome severe heat stress-related damage leading to reproductive failure.
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Affiliation(s)
- Alejandra Reyes-Rosales
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Gabriela Cabrales-Orona
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Norma A. Martínez-Gallardo
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Lino Sánchez-Segura
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Jazmín P. Padilla-Escamilla
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
| | - Paola A. Palmeros-Suárez
- Departamento de Producción Agrícola, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - John P. Délano-Frier
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Irapuato, Irapuato, Guanajuato, Mexico
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Kolupaev YE, Yastreb TO, Ryabchun NI, Yemets AI, Dmitriev OP, Blume YB. Cellular Mechanisms of the Formation of Plant Adaptive Responses to High Temperatures. CYTOL GENET+ 2023. [DOI: 10.3103/s0095452723010048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
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de Sousa IG, Oliveira J, Mexia A, Barros G, Almeida C, Brazinha C, Vega A, Brites C. Advances in Environmentally Friendly Techniques and Circular Economy Approaches for Insect Infestation Management in Stored Rice Grains. Foods 2023; 12:foods12030511. [PMID: 36766040 PMCID: PMC9914097 DOI: 10.3390/foods12030511] [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: 11/29/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/25/2023] Open
Abstract
Rice (Oryza sativa L.) is a staple food for about half of the world's population. Therefore, it is important to search for solutions that minimise losses and production costs for producers and ensure food quality and safety for consumers. Improved methods for the detection and monitoring of hidden infestations are useful for adopting infestation control measures. Chemical methods are used to prevent rice losses due to infestations; changing this situation, however, is of the utmost importance, as it harms the environment and human health. The management of infestation by controlled storage conditions, namely temperature and atmosphere composition and the use of current fossil-based packaging with modified atmospheres, is well recognised. The use of environmentally friendly solutions is promising, but it is necessary to perform a life-cycle assessment and cost analysis to evaluate their effectiveness. According to the principles of circular economy, the integration of the best-selected treatments/solutions for insect management, along with the use of biopackaging from rice by-products are recommended. This review describes the methods of detection and control of infestation as well as several promising alternatives to chemical treatments; however, more research is needed in order to obtain effective technological solutions that can be applied at an industrial scale.
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Affiliation(s)
- Inês Gonçalves de Sousa
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. da República, 2780-157 Oeiras, Portugal
- Linking Landscape, Environment, Agriculture and Food (LEAF) Research Center, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Jorge Oliveira
- Ernesto Morgado S.A., Rua Prof. Casimiro de Oliveira 21, 3090-833 Barra, Portugal
- School of Engineering and Architecture, University College Cork, T12 YN60 Cork, Ireland
| | - António Mexia
- Linking Landscape, Environment, Agriculture and Food (LEAF) Research Center, Tapada da Ajuda, 1349-017 Lisboa, Portugal
- Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Graça Barros
- Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Carina Almeida
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. da República, 2780-157 Oeiras, Portugal
| | - Carla Brazinha
- LAQV/Requimte, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Anna Vega
- Grain Technik Pvt. Ltd., B-2/12, Mohan Co-Operative Industrial Estate Badarpur, New Delhi 110044, India
| | - Carla Brites
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. da República, 2780-157 Oeiras, Portugal
- GREEN-IT Bioresources for Sustainability, ITQB NOVA, Av. da República, 2780-157 Oeiras, Portugal
- Correspondence:
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Li P, Jiang J, Zhang G, Miao S, Lu J, Qian Y, Zhao X, Wang W, Qiu X, Zhang F, Xu J. Integrating GWAS and transcriptomics to identify candidate genes conferring heat tolerance in rice. FRONTIERS IN PLANT SCIENCE 2023; 13:1102938. [PMID: 36699845 PMCID: PMC9868562 DOI: 10.3389/fpls.2022.1102938] [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: 11/19/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Rice (Oryza sativa L.) production is being challenged by global warming. Identifying new loci and favorable alleles associated with heat tolerance is crucial to developing rice heat-tolerant varieties. METHODS We evaluated the heat tolerance at the seedling stage using 620 diverse rice accessions. A total of six loci associated with heat tolerance were identified by a genome-wide association study (GWAS) with ~2.8 million single nucleotide polymorphisms (SNPs). RESULTS Among the six detected loci, qHT7 harbored the strongest association signal and the most associated SNPs. By comparing the transcriptomes of two representative accessions with contrasting heat tolerance, LOC_Os07g48710 (OsVQ30) was selected as a promising candidate gene in qHT7 due to the significant difference in its expression level between the two accessions. Haplotype 4 (Hap4) of LOC_Os07g48710 was determined as the favorable haplotype for heat tolerance via the gene-based haplotype analysis. The heat-tolerant haplotype LOC_Os07g48710Hap4 is highly enriched in the tropical Geng/Japonica accessions, and its frequency has decreased significantly during the improvement process of rice varieties. DISCUSSION Based on the GWAS and transcriptomics integrated results, a hypothetical model modulated by qHT7 in response to heat stress was proposed. Our results provide valuable candidate genes for improving rice heat tolerance through molecular breeding.
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Affiliation(s)
- Pingping Li
- Ministry of Agriculture and Rural Affairs (MARA) Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze University, Jingzhou, China
| | - Jing Jiang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Guogen Zhang
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Siyu Miao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jingbing Lu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yukang Qian
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiuqin Zhao
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wensheng Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Xianjin Qiu
- Ministry of Agriculture and Rural Affairs (MARA) Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze University, Jingzhou, China
| | - Fan Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- College of Agronomy, Anhui Agricultural University, Hefei, China
| | - Jianlong Xu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
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Xu W, Ren H, Qi X, Zhang S, Yu Z, Xie J. Conserved hierarchical gene regulatory networks for drought and cold stress response in Myrica rubra. FRONTIERS IN PLANT SCIENCE 2023; 14:1155504. [PMID: 37123838 PMCID: PMC10140524 DOI: 10.3389/fpls.2023.1155504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/20/2023] [Indexed: 05/03/2023]
Abstract
Stress response in plant is regulated by a large number of genes co-operating in diverse networks that serve multiple adaptive process. To understand how gene regulatory networks (GRNs) modulating abiotic stress responses, we compare the GRNs underlying drought and cold stresses using samples collected at 4 or 6 h intervals within 48 h in Chinese bayberry (Myrica rubra). We detected 7,583 and 8,840 differentially expressed genes (DEGs) under drought and cold stress respectively, which might be responsive to environmental stresses. Drought- and cold-responsive GRNs, which have been built according to the timing of transcription under both abiotic stresses, have a conserved trans-regulator and a common regulatory network. In both GRNs, basic helix-loop-helix family transcription factor (bHLH) serve as central nodes. MrbHLHp10 transcripts exhibited continuous increase in the two abiotic stresses and acts upstream regulator of ASCORBATE PEROXIDASE (APX) gene. To examine the potential biological functions of MrbHLH10, we generated a transgenic Arabidopsis plant that constitutively overexpresses the MrbHLH10 gene. Compared to wild-type (WT) plants, overexpressing transgenic Arabidopsis plants maintained higher APX activity and biomass accumulation under drought and cold stress. Consistently, RNAi plants had elevated susceptibility to both stresses. Taken together, these results suggested that MrbHLH10 mitigates abiotic stresses through the modulation of ROS scavenging.
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Affiliation(s)
- Weijie Xu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Horticulture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Haiying Ren
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Horticulture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Hangzhou, China
- Xianghu Lab., Hangzhou, China
- *Correspondence: Haiying Ren, ; Jianbo Xie,
| | - Xingjiang Qi
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Horticulture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Hangzhou, China
- Xianghu Lab., Hangzhou, China
| | - Shuwen Zhang
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Horticulture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Hangzhou, China
| | - Zheping Yu
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-Products, Institute of Horticulture, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Managing Biotic and Chemical Treats to the Quality and Safety of Agro-products, Hangzhou, China
| | - Jianbo Xie
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
- The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, Beijing Forestry University, Beijing, China
- *Correspondence: Haiying Ren, ; Jianbo Xie,
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Shrestha S, Mahat J, Shrestha J, K.C. M, Paudel K. Influence of high-temperature stress on rice growth and development. A review. Heliyon 2022; 8:e12651. [PMID: 36643304 PMCID: PMC9834771 DOI: 10.1016/j.heliyon.2022.e12651] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/14/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022] Open
Abstract
High-temperature stress (HS) has become an alarming threat to the global food system. Rice, an important crop that supports almost half of the global population, is vulnerable to heat stress. Under the influence of HS, it shows various physiological and morphological symptoms that increase spikelet sterility, reduce grain yield, and even cause total crop failure. HS affects growth and yield in two ways: hindrance in the process of pollination and fertilization and reduction of the grain weight. The former is caused by (i) distortion of floral organs, (ii) tapetum degeneration, (iii) low pollen protein concentration, (iv) decline in pollen viability, (v) reduction in dehiscence of anther, (vi) low pollen dispersal, (vii) decrease in number of pollens on stigma, (viii) reduction in pollen grain germination, (ix) hindrance in extension of pollen tubes, and (x) shrinkage of stigma which ultimately cause spikelet infertility. The latter is caused by (i)reduced photosynthetic rate, (ii) a boost in senescence of functional leaves, (iii) reduction of biological synthesis of starch, (iv)reduced starch augmentation, (v) shrunk duration of grain filling, and (vi) declined grain weight which ultimately reduce the grain yield. However, some agronomic and breeding approaches have been adopted for developing thermo-resistant cultivars but the success is limited. In this paper, we have summarized the the morpho-physiological and molecular response of plant to HS, and a few possible management strategies.
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Wang Y, Zhou Y, Wang R, Xu F, Tong S, Song C, Shao Y, Yi M, He J. Ethylene Response Factor LlERF110 Mediates Heat Stress Response via Regulation of LlHsfA3A Expression and Interaction with LlHsfA2 in Lilies ( Lilium longiflorum). Int J Mol Sci 2022; 23:16135. [PMID: 36555777 PMCID: PMC9781036 DOI: 10.3390/ijms232416135] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/29/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
Heat stress seriously affects the quality of cut lily flowers. The ethylene response factors (ERFs) participate in heat stress response in many plants. In this study, heat treatment increased the production of ethylene in lily leaves, and exogenous ethylene treatment enhanced the heat resistance of lilies. LlERF110, an important transcription factor in the ethylene signaling pathway, was found in the high-temperature transcriptome. The coding region of LlERF110 (969 bp) encodes 322 amino acids and LlERF110 contains an AP2/ERF typical domain belonging to the ERF subfamily group X. LlERF110 was induced by ethylene and was expressed constitutively in all tissues. LlERF110 is localized in the nucleus and has transactivation activity. Virus-induced gene silencing of LlERF110 in lilies reduced the basal thermotolerance phenotypes and significantly decreased the expression of genes involved in the HSF-HSP pathway, such as LlHsfA2, LlHsfA3A, and LlHsfA5, which may activate other heat stress response genes; and LlHsp17.6 and LlHsp22, which may protect proteins under heat stress. LlERF110 could directly bind to the promoter of LlHsfA3A and activate its expression according to the yeast one hybrid and dual-luciferase reporter assays. LlERF110 interacts with LlHsfA2 in the nucleus according to BiFC and the yeast two-hybrid assays. In conclusion, these results indicate that LlERF110 plays an important role in the basal thermotolerance of lilies via regulation of the HSF-HSP pathway, which could be the junction of the heat stress response pathway and the ethylene signaling pathway.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Junna He
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing 100193, China
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Chaudhary S, Jha UC, Paul PJ, Prasad PVV, Sharma KD, Kumar S, Gupta DS, Sharma P, Singh S, Siddique KHM, Nayyar H. Assessing the heat sensitivity of Urdbean ( Vigna mungo L. Hepper) genotypes involving physiological, reproductive and yield traits under field and controlled environment. FRONTIERS IN PLANT SCIENCE 2022; 13:1042999. [PMID: 36507460 PMCID: PMC9733429 DOI: 10.3389/fpls.2022.1042999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/07/2022] [Indexed: 06/17/2023]
Abstract
The rising temperatures are seriously impacting the food crops, including urdbean; hence efforts are needed to identify the sources of heat tolerance in such crops to ensure global food security. In the present study, urdbean genotypes were evaluated for heat tolerance under natural outdoor for two consecutive years (2018, 2019) and subsequently in the controlled environment of the growth chamber to identify high temperature tolerant lines. The genotypes were assessed involving few physiological traits (membrane damage, chlorophyll, photosynthetic efficiency, stomatal conductance, lipid peroxidation), reproductive traits (pollen germination % and pollen viability %) and yield related traits (total number of pods plant-1, total seeds plant-1, single seed weight and seed yield plant-1). Based upon these tested traits, PantU31, Mash114, UTTARA and IPU18-04 genotypes were identified as promising genotypes for both years under heat stress condition. Further confirming heat tolerance, all these four tolerant and four sensitive genotypes were tested under controlled environment under growth chamber condition. All these four genotypes PantU31, Mash114, UTTARA and IPU18-04 showed high chlorophyll content, photosynthetic efficiency, stomatal conductance, leaf area, pods plant-1, total seeds plant-1 and low reduction in pollen germination % and pollen viability under stress heat stress condition. Moreover, yield and yield related traits viz., pods plant-1, seeds plant-1, single seed weight and seed yield plant-1 showed very strong positive correlation with pollen germination and pollen viability except electrolyte leakage and malondialdehyde content. Thus, these genotypes could be potentially used as donors for transferring heat tolerance trait to the elite yet heat-sensitive urdbean cultivars.
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Affiliation(s)
| | - Uday Chand Jha
- Crop Improvement Division, Indian Council of Agricultural Research (ICAR)-Indian Institute of Pulses Research, Kanpur, India
| | - Pronob J. Paul
- International Rice Research Institute, South-Asia Hub, Hyderabad, India
| | - P. V. Vara Prasad
- Sustainable Intensification Innovation Lab, Kansas State University, Manhattan, KS, United States
| | - Kamal Dev Sharma
- Department of Agricultural Biotechnology, Choudhary Sarwan Kumar (CSK) Himachal Pradesh Agricultural University, Palampur, India
| | - Sanjeev Kumar
- Department of Plant Sciences, Central University of Punjab, Bhatinda, India
| | - Debjyoti Sen Gupta
- Crop Improvement Division, Indian Council of Agricultural Research (ICAR)-Indian Institute of Pulses Research, Kanpur, India
| | - Parul Sharma
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Sarvjeet Singh
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Kadambot H. M. Siddique
- The University of Western Australia (UWA) Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
| | - Harsh Nayyar
- Department of Botany, Panjab University, Chandigarh, India
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Luo J, Jiang J, Sun S, Wang X. Brassinosteroids promote thermotolerance through releasing BIN2-mediated phosphorylation and suppression of HsfA1 transcription factors in Arabidopsis. PLANT COMMUNICATIONS 2022; 3:100419. [PMID: 35927943 PMCID: PMC9700127 DOI: 10.1016/j.xplc.2022.100419] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 07/10/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
High temperature adversely affects plant growth and development. The steroid phytohormones brassinosteroids (BRs) are recognized to play important roles in plant heat stress responses and thermotolerance, but the underlying mechanisms remain obscure. Here, we demonstrate that the glycogen synthase kinase 3 (GSK3)-like kinase BRASSINOSTEROID INSENSITIVE2 (BIN2), a negative component in the BR signaling pathway, interacts with the master heat-responsive transcription factors CLASS A1 HEAT SHOCK TRANSCRIPTION FACTORS (HsfA1s). Furthermore, BIN2 phosphorylates HsfA1d on T263 and S56 to suppress its nuclear localization and inhibit its DNA-binding ability, respectively. BR signaling promotes plant thermotolerance by releasing the BIN2 suppression of HsfA1d to facilitate its nuclear localization and DNA binding. Our study provides insights into the molecular mechanisms by which BRs promote plant thermotolerance by strongly regulating HsfA1d through BIN2 and suggests potential ways to improve crop yield under extreme high temperatures.
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Affiliation(s)
- Jinyu Luo
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China
| | - Jianjun Jiang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng 475004, China
| | - Shiyong Sun
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng 475004, China
| | - Xuelu Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng 475004, China; Sanya Institute of Henan University, Sanya 572025, China.
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67
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ERF49 mediates brassinosteroid regulation of heat stress tolerance in Arabidopsis thaliana. BMC Biol 2022; 20:254. [DOI: 10.1186/s12915-022-01455-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 10/31/2022] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Heat stress is a major abiotic stress affecting the growth and development of plants, including crop species. Plants have evolved various adaptive strategies to help them survive heat stress, including maintaining membrane stability, encoding heat shock proteins (HSPs) and ROS-scavenging enzymes, and inducing molecular chaperone signaling. Brassinosteroids (BRs) are phytohormones that regulate various aspects of plant development, which have been implicated also in plant responses to heat stress, and resistance to heat in Arabidopsis thaliana is enhanced by adding exogenous BR. Brassinazole resistant 1 (BZR1), a transcription factor and positive regulator of BR signal, controls plant growth and development by directly regulating downstream target genes. However, the molecular mechanism at the basis of BR-mediated heat stress response is poorly understood. Here, we report the identification of a new factor critical for BR-regulated heat stress tolerance.
Results
We identified ERF49 in a genetic screen for proteins required for BR-regulated gene expression. We found that ERF49 is the direct target gene of BZR1 and that overexpressing ERF49 enhanced sensitivity of transgenic plants to heat stress. The transcription levels of heat shock factor HSFA2, heat stress-inducible gene DREB2A, and three heat shock protein (HSP) were significantly reduced under heat stress in ERF49-overexpressed transgenic plants. Transcriptional activity analysis in protoplast revealed that BZR1 inhibits ERF49 expression by binding to the promoter of ERF49. Our genetic analysis showed that dominant gain-of-function brassinazole resistant 1-1D mutant (bzr1-1D) exhibited lower sensitivity to heat stress compared with wild-type. Expressing ERF49-SRDX (a dominant repressor reporter of ERF49) in bzr1-1D significantly decreased the sensitivity of ERF49-SRDX/bzr1-1D transgenic plants to heat stress compared to bzr1-1D.
Conclusions
Our data provide clear evidence that BR increases thermotolerance of plants by repressing the expression of ERF49 through BZR1, and this process is dependent on the expression of downstream heat stress-inducible genes. Taken together, our work reveals a novel molecular mechanism mediating plant response to high temperature stress.
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68
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Liu X, Chen H, Li S, Lecourieux D, Duan W, Fan P, Liang Z, Wang L. Natural variations of HSFA2 enhance thermotolerance in grapevine. HORTICULTURE RESEARCH 2022; 10:uhac250. [PMID: 36643748 PMCID: PMC9832954 DOI: 10.1093/hr/uhac250] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/31/2022] [Indexed: 06/02/2023]
Abstract
Heat stress limits growth and development of crops including grapevine which is a popular fruit in the world. Genetic variability in crops thermotolerance is not well understood. We identified and characterized heat stress transcription factor HSFA2 in heat sensitive Vitis vinifera 'Jingxiu' (named as VvHSFA2) and heat tolerant Vitis davidii 'Tangwei' (named as VdHSFA2). The transcriptional activation activities of VdHSFA2 are higher than VvHSFA2, the variation of single amino acid (Thr315Ile) in AHA1 motif leads to the difference of transcription activities between VdHSFA2 and VvHSFA2. Based on 41 Vitis germplasms, we found that HSFA2 is differentiated at coding region among heat sensitive V. vinifera, and heat tolerant Vitis davidii and Vitis quinquangularis. Genetic evidence demonstrates VdHSFA2 and VvHSFA2 are positive regulators in grape thermotolerance, and the former can confer higher thermotolerance than the latter. Moreover, VdHSFA2 can regulate more target genes than VvHSFA2. As a target gene of both VdHSFA2 and VvHSFA2, overexpression of MBF1c enhanced the grape thermotolerance whereas dysfunction of MBF1c resulted in thermosensitive phenotype. Together, our results revealed that VdHSFA2 confers higher thermotolerance than VvHSFA2, and MBF1c acts as their target gene to induce thermotolerance. The VdHSFA2 may be adopted for molecular breeding in grape thermotolerance.
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Affiliation(s)
- Xinna Liu
- Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haiyang Chen
- Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shenchang Li
- Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - David Lecourieux
- EGFV, Bordeaux Sciences Agro, INRAE, ISVV, Bordeaux University, Villenave d'Ornon F-33882, France
| | - Wei Duan
- Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Peige Fan
- Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Zhenchang Liang
- Beijing Key Laboratory of Grape Science and Enology and Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
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Khoso MA, Hussain A, Ritonga FN, Ali Q, Channa MM, Alshegaihi RM, Meng Q, Ali M, Zaman W, Brohi RD, Liu F, Manghwar H. WRKY transcription factors (TFs): Molecular switches to regulate drought, temperature, and salinity stresses in plants. FRONTIERS IN PLANT SCIENCE 2022; 13:1039329. [PMID: 36426143 PMCID: PMC9679293 DOI: 10.3389/fpls.2022.1039329] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/19/2022] [Indexed: 06/01/2023]
Abstract
The WRKY transcription factor (TF) belongs to one of the major plant protein superfamilies. The WRKY TF gene family plays an important role in the regulation of transcriptional reprogramming associated with plant stress responses. Change in the expression patterns of WRKY genes or the modifications in their action; participate in the elaboration of numerous signaling pathways and regulatory networks. WRKY proteins contribute to plant growth, for example, gamete formation, seed germination, post-germination growth, stem elongation, root hair growth, leaf senescence, flowering time, and plant height. Moreover, they play a key role in many types of environmental signals, including drought, temperature, salinity, cold, and biotic stresses. This review summarizes the current progress made in unraveling the functions of numerous WRKY TFs under drought, salinity, temperature, and cold stresses as well as their role in plant growth and development.
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Affiliation(s)
- Muneer Ahmed Khoso
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, Jiangxi, China
- Department of Life Science, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Amjad Hussain
- College of Plant Science and Technology, National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, Hubei, China
| | | | - Qurban Ali
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Education, Nanjing, China
| | | | - Rana M. Alshegaihi
- Department of Biology, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Qinglin Meng
- Department of Biology and Food Engineering, Bozhou University, Bozhou, China
| | - Musrat Ali
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University Islamabad Pakistan, Islamabad, Pakistan
| | - Wajid Zaman
- Department of Life Sciences, Yeungnam University, Gyeongsan, South Korea
| | - Rahim Dad Brohi
- Department of Animal Reproduction/Theriogenology, Faculty of Veterinary Science, Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Pakistan
| | - Fen Liu
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, Jiangxi, China
| | - Hakim Manghwar
- Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang, Jiangxi, China
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Sriden N, Charoensawan V. Large-scale comparative transcriptomic analysis of temperature-responsive genes in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2022; 110:425-443. [PMID: 34973146 PMCID: PMC9646545 DOI: 10.1007/s11103-021-01223-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/17/2021] [Indexed: 05/13/2023]
Abstract
Comparative transcriptomic analysis provides broad and detailed understandings of transcriptional responses to a wide range of temperatures in different plant tissues, and unique regulatory functions of temperature-mediating transcription factors. Climate change poses a great threat to plant diversity and food security. It is thus of necessity to understand the molecular mechanisms for perceiving and responding to adverse temperature changes, to develop the cultivars that are resilient to these environmental stresses. Making use of publicly available datasets, we gathered and re-analyzed 259 individual transcriptomic profiles from 139 unique experiments of Arabidopsis thaliana's shoot, root, and seedling tissues, subjected to a wide variety of temperature conditions, ranging from freezing, cold, low and high ambient temperatures, to heat shock. Despite the underlying differences in the overall transcriptomic profiles between the plant tissues, we were able to identify distinct sets of genes whose transcription patterns were highly responsive to different types of temperature conditions, some were common among the tissues and some were tissue-specific. Interestingly, we observed that the known temperature-responsive genes such as the heat-shock factor (HSF) family, were up-regulated not only in response to high temperatures, but some of its members were also likely involved in the cold response. By integrating the DNA-binding specificity information of the key temperature transcription factor (TF) HSFA1a, PIF4, and CBFs, we elucidated their distinct DNA-binding patterns to the target genes that showed different transcriptional responses. Taken together, we have comprehensively characterized the transcription patterns of temperature-responsive genes and provided directly testable hypotheses on the regulatory roles of key temperature TFs on the expression dynamics of their target genes.
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Affiliation(s)
- Napaporn Sriden
- Doctor of Philosophy Program in Biochemistry (International Program), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Varodom Charoensawan
- Department of Biochemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
- Integrative Computational BioScience (ICBS) Center, Mahidol University, Nakhon Pathom, 73170, Thailand.
- Systems Biology of Diseases Research Unit (SyBID), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
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Sun T, Wang W, Hu X, Fang Z, Wang Y, Xiang L, Chan Z. Genome-wide identification of heat shock transcription factor families in perennial ryegrass highlights the role of LpHSFC2b in heat stress response. PHYSIOLOGIA PLANTARUM 2022; 174:e13828. [PMID: 36377141 DOI: 10.1111/ppl.13828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/27/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Perennial ryegrass (Lolium perenne) is a cool-season turf and forage grass. Heat shock transcription factors (HSFs) play an important role in regulating plant abiotic stress. However, HSFs in perennial ryegrass have rarely been characterized. Here, 25 LpHSFs were identified from the perennial ryegrass genome. Phylogenetic analysis showed that the LpHSFs could be classified into 12 subclasses. Gene structure analysis showed that 22 LpHSFs have only one intron. Cis-acting elements analysis revealed that the promoter of 15 LpHSFs contained hormone-responsive and abiotic stress-responsive elements. Expression profile analysis indicated that 24 LpHSFs were differentially expressed under submerge, drought, heat, and cold stresses. In addition, a subclass C2 gene, LpHSFC2b, was significantly induced by abiotic stresses. The LpHSFC2b protein is localized to the nucleus, and heterologous expression of LpHSFC2b in Arabidopsis improves plant thermotolerance. This study provides insights useful for the breeding of stress tolerance in perennial ryegrass.
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Affiliation(s)
- Tianxiao Sun
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Weiliang Wang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Xianmei Hu
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Zhengfu Fang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Yanping Wang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Lin Xiang
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
| | - Zhulong Chan
- Key Laboratory of Horticultural Plant Biology, Ministry of Education; College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, China
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72
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Zhang Y, Wang S, Li W, Wang S, Hao L, Xu C, Yu Y, Xiang L, Li T, Jiang F. A long noncoding RNA HILinc1 enhances pear thermotolerance by stabilizing PbHILT1 transcripts through complementary base pairing. Commun Biol 2022; 5:1134. [PMID: 36289367 PMCID: PMC9606298 DOI: 10.1038/s42003-022-04010-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 09/20/2022] [Indexed: 12/04/2022] Open
Abstract
As global warming intensifies, heat stress has become a major environmental constraint threatening crop production and quality worldwide. Here, we characterize Heat-induced long intergenic noncoding RNA 1 (HILinc1), a cytoplasm-enriched lincRNA that plays a key role in thermotolerance regulation of pear (Pyrus spp.). HILinc1 Target 1 (PbHILT1) which is the target transcript of HILinc1, was stabilized via complementary base pairing to upregulate its expression. PbHILT1 could bind to Heat shock transcription factor A1b (PbHSFA1b) to enhance its transcriptional activity, leading to the upregulation of a major downstream transcriptional regulator, Multiprotein bridging factor 1c (PbMBF1c), during heat response. Transient overexpressing of either HILinc1 or PbHILT1 increases thermotolerance in pear, while transient silencing of HILinc1 or PbHILT1 makes pear plants more heat sensitive. These findings provide evidences for a new regulatory mechanism by which HILinc1 facilitates PbHSFA1b activity and enhances pear thermotolerance through stabilizing PbHILT1 transcripts. Heat stress in pear cultivar results in upregulation of long non-coding RNA HILinc1, which binds to and stabilizes PbHILT1 mRNA, which codes for a protein that interacts with heat shock factor A1b, improving thermotolerance.
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Affiliation(s)
- Yi Zhang
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Shengnan Wang
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Wei Li
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Shengyuan Wang
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Li Hao
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Chaoran Xu
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Yunfei Yu
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Ling Xiang
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Tianzhong Li
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
| | - Feng Jiang
- grid.22935.3f0000 0004 0530 8290Collage of Horticulture, China Agricultural University, 100193 Beijing, China
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Hu XG, Xu Y, Shen N, Liu M, Zhuang H, Borah P, Tong Z, Lin E, Huang H. Comparative physiological analyses and the genetic basis reveal heat stress responses mechanism among different Betula luminifera populations. FRONTIERS IN PLANT SCIENCE 2022; 13:997818. [PMID: 36212384 PMCID: PMC9538328 DOI: 10.3389/fpls.2022.997818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/29/2022] [Indexed: 05/24/2023]
Abstract
Betula luminifera is a subtropical fast-growing timber species with high economic value. However, along with global warming, heat stress become one of the main environmental variables that limit the productivity of B. luminifera, and the response of diverse geographic populations to high temperatures is still unclear. In order to offer a comprehensive understanding of the behavior of B. luminifera under heat stress, the physiological responses of six B. luminifera populations (across the core distribution area) were described in this work in an integrated viewpoint. The results showed that a multi-level physiological regulatory network may exist in B. luminifera, the first response was the activity of resistant enzymes [e.g., peroxidase (POD)] at a preliminary stage of 2 h heat stress, and then the proline (osmoregulation substance) content began to increase after 24 h of continuous high-temperature treatment. In addition, photosynthesis was stronlgly affected by heat stress, and the net photosynthetic rate (Pn ) showed a downward trend under heat treatment in all six B. luminifera populations. Interestingly, although the physiological change patterns of the six B. luminifera populations were relatively consistent for the same parameter, there were obvious differences among different populations. Comprehensive analysis revealed that the physiological response of Rongshui (RS) was the most stable, and this was the representative B. luminifera population. Illumina RNA-seq analysis was applied to reveal the specific biological process of B. luminifera under heat stress using the RS population, and a total of 116,484 unigenes were obtained. The differentially expressed genes (DEGs) between different time periods under heat stress were enriched in 34 KEGG pathways, and the limonene and pinene degradation pathway was commonly enriched in all pairwise comparisons. Moreover, transcription factors including bHLH (basic helix-loop-helix), MYB, WRKY, and NAC (NAM, ATAF1/2, and CUC2) were identified. In this study, the physiological response and tolerance mechanisms of B. luminifera under high temperature stress were revealed, which can conducive to the basis of B. luminifera selection and resistance assessment for cultivation and breeding.
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74
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Zhu H, Wu Y, Zheng Y. Effects of heat shock on photosynthesis-related characteristics and lipid profile of Cycas multipinnata and C. panzhihuaensis. BMC PLANT BIOLOGY 2022; 22:442. [PMID: 36109687 PMCID: PMC9476270 DOI: 10.1186/s12870-022-03825-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Cycas multipinnata and C. panzhihuaensis are two attractive ornamental tree species. With the global climate change, the temperature in the natural habitats of both the species shows a marked rising trend. However, how the two species respond to extreme high temperatures are not clear. Chlorophyll fluorescence parameters, chlorophyll content, chloroplast ultrastructure and lipid metabolism in the two species were determined following plant exposure to heat stress. RESULTS The results demonstrated that the photosynthetic efficiency decreased significantly in both the species following heat shock and recovery, but to a greater extent in C. panzhihuaensis. Compared to the control, chlorophyll content of C. multipinnata did not change significantly following heat stress and recovery. However, chlorophyll content of C. panzhihuaensis increased significantly after 1 d of recovery in comparison with the control. Chloroplast ultrastructures of C. panzhihuaensis were more severely affected by heat shock than C. multipinnata. C. multipinnata and C. panzhihuaensis followed a similar change trend in the amounts of most of the lipid categories after heat stress. However, only the amounts of lysophospholipids and fatty acyls differed significantly between the two species following heat treatment. Additionally, the unsaturation levels of the major lipid classes in C. multipinnata were significantly lower than or equal to those in C. panzhihuaensis. CONCLUSIONS C. multipinnata was less affected by extremely high temperatures than C. panzhihuaensis. The differential stability of chlorophyll and chloroplast ultrastructure and the differential adjustment of lipid metabolism might contribute to the different responses to heat shock between the two species.
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Affiliation(s)
- Huan Zhu
- Key Laboratory of State Forestry and Grassland Administration for Biodiversity Conservation in Southwest China, Southwest Forestry University, Kunming, 650233, Yunnan, China
| | - Yangyang Wu
- Key Laboratory of State Forestry and Grassland Administration for Biodiversity Conservation in Southwest China, Southwest Forestry University, Kunming, 650233, Yunnan, China
| | - Yanling Zheng
- Key Laboratory of State Forestry and Grassland Administration for Biodiversity Conservation in Southwest China, Southwest Forestry University, Kunming, 650233, Yunnan, China.
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75
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Zhang T, Tang Y, Luan Y, Cheng Z, Wang X, Tao J, Zhao D. Herbaceous peony AP2/ERF transcription factor binds the promoter of the tryptophan decarboxylase gene to enhance high-temperature stress tolerance. PLANT, CELL & ENVIRONMENT 2022; 45:2729-2743. [PMID: 35590461 DOI: 10.1111/pce.14357] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 03/29/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Global warming has multifarious adverse effects on plant growth and productivity. Nonetheless, the effects of endogenous phytomelatonin on the high-temperature resistance of plants and the underlying genetic mechanisms remain unclear. Here, herbaceous peony (Paeonia lactiflora Pall.) tryptophan decarboxylase (TDC) gene involved in phytomelatonin biosynthesis was shown to respond to high-temperature stress at the transcriptional level, and its transcript level was positively correlated with phytomelatonin production. Moreover, overexpression of PlTDC enhanced phytomelatonin production and high-temperature stress tolerance in transgenic tobacco, while silencing PlTDC expression decreased these parameters in P. lactiflora. In addition, a 2402 bp promoter fragment of PlTDC was isolated, and DNA pull-down assay revealed that one APETALA2/ethylene-responsive element-binding factor (AP2/ERF) transcription factor, PlTOE3, could specifically activate the PlTDC promoter, which was further verified by yeast one-hybrid assay and luciferase reporter assay. PlTOE3 was a nucleus-localized protein, and its transcript level responded to high-temperature stress. Additionally, transgenic tobacco overexpressing PlTOE3 showed enhanced phytomelatonin production and high-temperature stress tolerance, while silencing PlTDC expression obtained the opposite results. These results illustrated that PlTOE3 bound the PlTDC promoter to enhance high-temperature stress tolerance by increasing phytomelatonin production in P. lactiflora.
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Affiliation(s)
- Tingting Zhang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yuhan Tang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yuting Luan
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhuoya Cheng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xiaoxiao Wang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
| | - Jun Tao
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
| | - Daqiu Zhao
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu, China
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76
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Preston JC, Fjellheim S. Flowering time runs hot and cold. PLANT PHYSIOLOGY 2022; 190:5-18. [PMID: 35274728 PMCID: PMC9434294 DOI: 10.1093/plphys/kiac111] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 02/13/2022] [Indexed: 05/16/2023]
Abstract
Evidence suggests that anthropogenically-mediated global warming results in accelerated flowering for many plant populations. However, the fact that some plants are late flowering or unaffected by warming, underscores the complex relationship between phase change, temperature, and phylogeny. In this review, we present an emerging picture of how plants sense temperature changes, and then discuss the independent recruitment of ancient flowering pathway genes for the evolution of ambient, low, and high temperature-regulated reproductive development. As well as revealing areas of research required for a better understanding of how past thermal climates have shaped global patterns of plasticity in plant phase change, we consider the implications for these phenological thermal responses in light of climate change.
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Affiliation(s)
- Jill C Preston
- Department of Plant Biology, University of Vermont, Burlington, Vermont 05405, USA
| | - Siri Fjellheim
- Department of Plant Sciences, Norwegian University of Life Sciences, Ås 1430, Norway
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77
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Chaudhary S, Devi P, HanumanthaRao B, Jha UC, Sharma KD, Prasad PVV, Kumar S, Siddique KHM, Nayyar H. Physiological and Molecular Approaches for Developing Thermotolerance in Vegetable Crops: A Growth, Yield and Sustenance Perspective. FRONTIERS IN PLANT SCIENCE 2022; 13:878498. [PMID: 35837452 PMCID: PMC9274134 DOI: 10.3389/fpls.2022.878498] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Vegetables are a distinct collection of plant-based foods that vary in nutritional diversity and form an important part of the healthy diet of the human being. Besides providing basic nutrition, they have great potential for boosting human health. The balanced consumption of vegetables is highly recommended for supplementing the human body with better nutrition density, dietary fiber, minerals, vitamins, and bioactive compounds. However, the production and quality of fresh vegetables are influenced directly or indirectly by exposure to high temperatures or heat stress (HS). A decline in quality traits and harvestable yield are the most common effects of HS among vegetable crops. Heat-induced morphological damage, such as poor vegetative growth, leaf tip burning, and rib discoloration in leafy vegetables and sunburn, decreased fruit size, fruit/pod abortion, and unfilled fruit/pods in beans, are common, often rendering vegetable cultivation unprofitable. Further studies to trace down the possible physiological and biochemical effects associated with crop failure reveal that the key factors include membrane damage, photosynthetic inhibition, oxidative stress, and damage to reproductive tissues, which may be the key factors governing heat-induced crop failure. The reproductive stage of plants has extensively been studied for HS-induced abnormalities. Plant reproduction is more sensitive to HS than the vegetative stages, and affects various reproductive processes like pollen germination, pollen load, pollen tube growth, stigma receptivity, ovule fertility and, seed filling, resulting in poorer yields. Hence, sound and robust adaptation and mitigation strategies are needed to overcome the adverse impacts of HS at the morphological, physiological, and biochemical levels to ensure the productivity and quality of vegetable crops. Physiological traits such as the stay-green trait, canopy temperature depression, cell membrane thermostability, chlorophyll fluorescence, relative water content, increased reproductive fertility, fruit numbers, and fruit size are important for developing better yielding heat-tolerant varieties/cultivars. Moreover, various molecular approaches such as omics, molecular breeding, and transgenics, have been proved to be useful in enhancing/incorporating tolerance and can be potential tools for developing heat-tolerant varieties/cultivars. Further, these approaches will provide insights into the physiological and molecular mechanisms that govern thermotolerance and pave the way for engineering "designer" vegetable crops for better health and nutritional security. Besides these approaches, agronomic methods are also important for adaptation, escape and mitigation of HS protect and improve yields.
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Affiliation(s)
| | - Poonam Devi
- Department of Botany, Panjab University, Chandigarh, India
| | - Bindumadhava HanumanthaRao
- World Vegetable Center, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Greater Hyderabad, Hyderabad, India
- Marri Channa Reddy Foundation (MCRF), Hyderabad, India
| | - Uday Chand Jha
- Crop Improvement Division, Indian Institute of Pulses Research, Kanpur, India
| | - Kamal Dev Sharma
- Department of Agricultural Biotechnology, Chaudhary Sarwan Kumar Himachal Pradesh Agricultural University, Palampur, India
| | - P. V. Vara Prasad
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | - Shiv Kumar
- International Center for Agriculture Research in the Dry Areas (ICARDA), Rabat, Morocco
| | - Kadambot H. M. Siddique
- The University of Western Australia Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
| | - Harsh Nayyar
- Department of Botany, Panjab University, Chandigarh, India
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78
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Zenda T, Wang N, Dong A, Zhou Y, Duan H. Reproductive-Stage Heat Stress in Cereals: Impact, Plant Responses and Strategies for Tolerance Improvement. Int J Mol Sci 2022; 23:6929. [PMID: 35805930 PMCID: PMC9266455 DOI: 10.3390/ijms23136929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
Reproductive-stage heat stress (RSHS) poses a major constraint to cereal crop production by damaging main plant reproductive structures and hampering reproductive processes, including pollen and stigma viability, pollination, fertilization, grain setting and grain filling. Despite this well-recognized fact, research on crop heat stress (HS) is relatively recent compared to other abiotic stresses, such as drought and salinity, and in particular, RSHS studies in cereals are considerably few in comparison with seedling-stage and vegetative-stage-centered studies. Meanwhile, climate change-exacerbated HS, independently or synergistically with drought, will have huge implications on crop performance and future global food security. Fortunately, due to their sedentary nature, crop plants have evolved complex and diverse transient and long-term mechanisms to perceive, transduce, respond and adapt to HS at the molecular, cell, physiological and whole plant levels. Therefore, uncovering the molecular and physiological mechanisms governing plant response and tolerance to RSHS facilitates the designing of effective strategies to improve HS tolerance in cereal crops. In this review, we update our understanding of several aspects of RSHS in cereals, particularly impacts on physiological processes and yield; HS signal perception and transduction; and transcriptional regulation by heat shock factors and heat stress-responsive genes. We also discuss the epigenetic, post-translational modification and HS memory mechanisms modulating plant HS tolerance. Moreover, we offer a critical set of strategies (encompassing genomics and plant breeding, transgenesis, omics and agronomy) that could accelerate the development of RSHS-resilient cereal crop cultivars. We underline that a judicious combination of all of these strategies offers the best foot forward in RSHS tolerance improvement in cereals. Further, we highlight critical shortcomings to RSHS tolerance investigations in cereals and propositions for their circumvention, as well as some knowledge gaps, which should guide future research priorities. Overall, our review furthers our understanding of HS tolerance in plants and supports the rational designing of RSHS-tolerant cereal crop cultivars for the warming climate.
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Affiliation(s)
- Tinashe Zenda
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (T.Z.); (N.W.); (A.D.)
- Department of Crop Genetics and Breeding, College o Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Nan Wang
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (T.Z.); (N.W.); (A.D.)
- Department of Crop Genetics and Breeding, College o Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Anyi Dong
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (T.Z.); (N.W.); (A.D.)
- Department of Crop Genetics and Breeding, College o Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Yuzhi Zhou
- Library Department, Hebei Agricultural University, Baoding 071001, China;
| | - Huijun Duan
- State Key Laboratory of North China Crop Improvement and Regulation, Hebei Agricultural University, Baoding 071001, China; (T.Z.); (N.W.); (A.D.)
- Department of Crop Genetics and Breeding, College o Agronomy, Hebei Agricultural University, Baoding 071001, China
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79
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Xu R, Zhou S, Song J, Zhong H, Zhu T, Gong Y, Zhou Y, Bian Y. Comparative Transcriptome Analysis Provides Insights Into the Mechanism by Which 2,4-Dichlorophenoxyacetic Acid Improves Thermotolerance in Lentinula edodes. Front Microbiol 2022; 13:910255. [PMID: 35801117 PMCID: PMC9253865 DOI: 10.3389/fmicb.2022.910255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/31/2022] [Indexed: 12/02/2022] Open
Abstract
As the widest cultivated edible mushroom worldwide, Lentinula edodes suffers serious yield and quality losses from heat stress during growth and development, and in our previous study, exogenous 2,4-Dichlorophenoxyacetic acid (2,4-D) was found to improve the thermotolerance of L. edodes strain YS3357, but the molecular mechanism remains unclear. Here, we explored the potential protective mechanism of exogenous 2,4-D against heat stress by transcriptome analysis. 2,4-D possible improve the thermotolerance of L. edodes through regulating antioxidant genes, transcription factors, energy-provision system, membrane fluidity, and cell wall remodeling. Furthermore, 2,4-D was also found to regulate the saturation levels of fatty acids and ATP content in L. edodes mycelium under heat stress. This study proposed a regulatory network of 2,4-D in regulating L. edodes response to heat stress, providing a theoretical basis for improving L. edodes thermotolerance, and facilitating the understanding of the molecular mechanism of exogenous hormones in alleviating abiotic stress damage to macrofungi.
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80
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Mekonnen TW, Gerrano AS, Mbuma NW, Labuschagne MT. Breeding of Vegetable Cowpea for Nutrition and Climate Resilience in Sub-Saharan Africa: Progress, Opportunities, and Challenges. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11121583. [PMID: 35736733 PMCID: PMC9230997 DOI: 10.3390/plants11121583] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/06/2022] [Accepted: 06/09/2022] [Indexed: 05/08/2023]
Abstract
Currently, the world population is increasing, and humanity is facing food and nutritional scarcity. Climate change and variability are a major threat to global food and nutritional security, reducing crop productivity in the tropical and subtropical regions of the globe. Cowpea has the potential to make a significant contribution to global food and nutritional security. In addition, it can be part of a sustainable food system, being a genetic resource for future crop improvement, contributing to resilience and improving agricultural sustainability under climate change conditions. In malnutrition prone regions of sub-Saharan Africa (SSA) countries, cowpea has become a strategic dryland legume crop for addressing food insecurity and malnutrition. Therefore, this review aims to assess the contribution of cowpea to SSA countries as a climate-resilient crop and the existing production challenges and perspectives. Cowpea leaves and immature pods are rich in diverse nutrients, with high levels of protein, vitamins, macro and micronutrients, minerals, fiber, and carbohydrates compared to its grain. In addition, cowpea is truly a multifunctional crop for maintaining good health and for reducing non-communicable human diseases. However, as a leafy vegetable, cowpea has not been researched and promoted sufficiently because it has not been promoted as a food security crop due to its low yield potential, susceptibility to biotic and abiotic stresses, quality assurance issues, policy regulation, and cultural beliefs (it is considered a livestock feed). The development of superior cowpea as a leafy vegetable can be approached in different ways, such as conventional breeding and gene stacking, speed breeding, mutation breeding, space breeding, demand-led breeding, a pan-omics approach, and local government policies. The successful breeding of cowpea genotypes that are high-yielding with a good nutritional value as well as having resistance to biotics and tolerant to abiotic stress could also be used to address food security and malnutrition-related challenges in sub-Saharan Africa.
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Affiliation(s)
- Tesfaye Walle Mekonnen
- Department of Plant Sciences, University of the Free State, Bloemfontein 9301, South Africa; (N.W.M.); (M.T.L.)
- Correspondence: ; Tel.: +27-796540514
| | - Abe Shegro Gerrano
- Agricultural Research Council-Vegetable, Industrial and Medicinal Plants, Pretoria 0001, South Africa;
- Food Security and Safety Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mmabatho 2735, South Africa
| | - Ntombokulunga Wedy Mbuma
- Department of Plant Sciences, University of the Free State, Bloemfontein 9301, South Africa; (N.W.M.); (M.T.L.)
| | - Maryke Tine Labuschagne
- Department of Plant Sciences, University of the Free State, Bloemfontein 9301, South Africa; (N.W.M.); (M.T.L.)
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81
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Guihur A, Rebeaud ME, Goloubinoff P. How do plants feel the heat and survive? Trends Biochem Sci 2022; 47:824-838. [PMID: 35660289 DOI: 10.1016/j.tibs.2022.05.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 01/03/2023]
Abstract
Climate change is increasingly affecting the quality of life of organisms on Earth. More frequent, extreme, and lengthy heat waves are contributing to the sixth mass extinction of complex life forms in the Earth's history. From an anthropocentric point of view, global warming is a major threat to human health because it also compromises crop yields and food security. Thus, achieving agricultural productivity under climate change calls for closer examination of the molecular mechanisms of heat-stress resistance in model and crop plants. This requires a better understanding of the mechanisms by which plant cells can sense rising temperatures and establish effective molecular defenses, such as molecular chaperones and thermoprotective metabolites, as reviewed here, to survive extreme diurnal variations in temperature and seasonal heat waves.
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Affiliation(s)
- Anthony Guihur
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland.
| | - Mathieu E Rebeaud
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland
| | - Pierre Goloubinoff
- Department of Plant Molecular Biology, Faculty of Biology and Medicine, University of Lausanne, CH-1015 Lausanne, Switzerland; School of Plant Sciences and Food Security, Tel-Aviv University, Tel Aviv 69978, Israel.
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Havva EN, Kolupaev YE, Shkliarevskyi MA, Kokorev AI, Dmitriev AP. Hydrogen Sulfide Participation in the Formation of Wheat Seedlings’ Heat Resistance Under the Action of Hardening Temperature. CYTOL GENET+ 2022. [DOI: 10.3103/s0095452722030045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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83
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Yan S, Yu B, Ming F, Liang Y, Zhong Y, Wang Z, Zhang X, Li X, Qiu Z, Cao B. CsIVP Modulates Low Nitrogen and High-Temperature Resistance in Cucumber. PLANT & CELL PHYSIOLOGY 2022; 63:605-617. [PMID: 35137209 DOI: 10.1093/pcp/pcac020] [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: 09/13/2021] [Accepted: 02/07/2022] [Indexed: 06/14/2023]
Abstract
Crop plants experience various abiotic stresses that reduce yield and quality. Although several adaptative physiological and defense responses to single stress have been identified, the behavior and mechanisms of plant response to multiple stresses remain underexamined. Herein, we determined that the leaf and vascular changes in Cucumis sativus Irregular Vasculature Patterning (CsIVP)-RNAi cucumber plants can enhance resistance to nitrogen deficiency and high-temperature stress. CsIVP negatively regulated high nitrate affinity transporters (NRT2.1, NRT2.5) and reallocation transporters (NRT1.7, NRT1.9, NRT1.12) under low nitrogen stress. Furthermore, CsIVP-RNAi plants have high survival rate with low heat injury level under high-temperature condition. Several key high-temperature regulators, including Hsfs, Hsps, DREB2C, MBF1b and WRKY33 have significant expression in CsIVP-RNAi plants. CsIVP negatively mediated high-temperature responses by physically interacting with CsDREB2C. Altogether, these results indicated that CsIVP integrates innate programming of plant development, nutrient transport and high-temperature resistance, providing a potentially valuable target for breeding nutrient-efficient and heat-resistant crops.
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Affiliation(s)
- Shuangshuang Yan
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Bingwei Yu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Fangyan Ming
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Yonggui Liang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Yanting Zhong
- Department of Plant Nutrition, The Key Laboratory of Plant-Soil Interactions, China Agricultural University, Beijing 100193, China
| | - Zhongyi Wang
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Xiaolan Zhang
- State Key Laboratories of Agrobiotechnology, Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, MOE Joint Laboratory for International Cooperation in Crop Molecular Breeding, China Agricultural University, Beijing 100193, China
| | - Xuexian Li
- Department of Plant Nutrition, The Key Laboratory of Plant-Soil Interactions, China Agricultural University, Beijing 100193, China
| | - Zhengkun Qiu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Bihao Cao
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China), Ministry of Agriculture and Rural Affairs, Guangdong Vegetable Engineering and Technology Research Center, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
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84
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Genome-Wide Analysis of the Trehalose-6-Phosphate Synthase Gene Family in Rose (Rosa chinensis) and Differential Expression under Heat Stress. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8050429] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Trehalose and some members of the trehalose 6-phosphate synthase (TPS) gene family play important roles in response to abiotic stress in plants. However, no studies investigating the TPS gene in rose have been reported. In this study, the trehalose content in the stems and roots of Rosa chinensis was significantly increased under heat stress, and nine TPS family members were identified from the genome of R. chinensis. The R. chinensis TPS (RcTPS) family members could be divided into two subfamilies based on the structure and phylogenetic analysis. In this study, we found that segmental duplications contributed to the expansion of the RcTPS gene family, and the type II subfamily gene pairs RcTPS9–RcTPS10 and RcTPS7a–RcTPS7b were created by segmental duplication events. The type I subfamily RcTPS members contained 17 exons in the protein-coding region, whereas type II subfamily members only had 3 or 4 exons. Most cis-acting elements in the promoters of RcTPS members were related to plant hormones, especially ABA hormones. A phylogenetic tree of 78 TPS homologous amino acids from R. chinensis and another 7 species was constructed, which could be divided into 5 clades, and purity selection was observed to be the dominant evolutionary selection pressure. Under heat stress, except for RcTPS1b, the other eight RcTPS members were upregulated in the roots, stems, orleaves. The type II subfamily members RcTPS7a and RcTPS7b showed significantly high expression patterns in response to heat stress in all three tissues. Our findings indicate that RcTPS7a and RcTPS7b may play important roles in the heat tolerance of R. chinensis and are helpful for future functional studies of the two RcTPS members during heat stress.
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85
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El-Sappah AH, Rather SA, Wani SH, Elrys AS, Bilal M, Huang Q, Dar ZA, Elashtokhy MMA, Soaud N, Koul M, Mir RR, Yan K, Li J, El-Tarabily KA, Abbas M. Heat Stress-Mediated Constraints in Maize ( Zea mays) Production: Challenges and Solutions. FRONTIERS IN PLANT SCIENCE 2022; 13:879366. [PMID: 35615131 PMCID: PMC9125997 DOI: 10.3389/fpls.2022.879366] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 03/30/2022] [Indexed: 05/05/2023]
Abstract
An increase in temperature and extreme heat stress is responsible for the global reduction in maize yield. Heat stress affects the integrity of the plasma membrane functioning of mitochondria and chloroplast, which further results in the over-accumulation of reactive oxygen species. The activation of a signal cascade subsequently induces the transcription of heat shock proteins. The denaturation and accumulation of misfolded or unfolded proteins generate cell toxicity, leading to death. Therefore, developing maize cultivars with significant heat tolerance is urgently required. Despite the explored molecular mechanism underlying heat stress response in some plant species, the precise genetic engineering of maize is required to develop high heat-tolerant varieties. Several agronomic management practices, such as soil and nutrient management, plantation rate, timing, crop rotation, and irrigation, are beneficial along with the advanced molecular strategies to counter the elevated heat stress experienced by maize. This review summarizes heat stress sensing, induction of signaling cascade, symptoms, heat stress-related genes, the molecular feature of maize response, and approaches used in developing heat-tolerant maize varieties.
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Affiliation(s)
- Ahmed H. El-Sappah
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Department of Genetics, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
| | - Shabir A. Rather
- Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, China
| | - Shabir Hussain Wani
- Mountain Research Centre for Field Crops Khudwani Anantnag, SKUAST–Kashmir, Srinagar, India
| | - Ahmed S. Elrys
- Department of Soil Science, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Muhammad Bilal
- School of Life Sciences and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Qiulan Huang
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
- College of Tea Science, Yibin University, Yibin, China
| | - Zahoor Ahmad Dar
- Dryland Agriculture Research Station, SKUAST–Kashmir, Srinagar, India
| | | | - Nourhan Soaud
- Department of Crop Science, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Monika Koul
- Department of Botany, Hansraj College, University of Delhi, New Delhi, India
| | - Reyazul Rouf Mir
- Division of Genetics and Plant Breeding, Faculty of Agriculture (FoA), SKUAST–Kashmir, Sopore, India
| | - Kuan Yan
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
| | - Jia Li
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Manzar Abbas
- School of Agriculture, Forestry and Food Engineering, Yibin University, Yibin, China
- Key Laboratory of Sichuan Province for Refining Sichuan Tea, Yibin, China
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86
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Xu X, Wang Q, Li W, Hu T, Wang Q, Yin Y, Liu X, He S, Zhang M, Liang Y, Zhu J, Zhan X. Overexpression of SlBBX17 affects plant growth and enhances heat tolerance in tomato. Int J Biol Macromol 2022; 206:799-811. [PMID: 35307463 DOI: 10.1016/j.ijbiomac.2022.03.080] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 03/10/2022] [Accepted: 03/13/2022] [Indexed: 12/11/2022]
Abstract
Heat stress is one of the major limiting factors that affect plant growth and production. In this study, we identified SlBBX17, which encodes a B-Box (BBX) protein and functions as a negative regulator of plant growth and a positive regulator of heat tolerance in tomato (Solanum lycopersicum). The expression of SlBBX17 is induced by hormones and heat stress. Overexpression of SlBBX17 (SlBBX17-OE) in tomato led to less chlorophyll content and lower net photosynthetic rate relative to the wild type. The growth retardation in the SlBBX17-OE plants may be attributed to the change of endogenous gibberellin (GA) metabolism and the decrease of photosynthetic capacity. SlBBX17-OE plants exhibited increased tolerance to heat stress, as reflected by the better membrane stability, higher antioxidant enzyme activities, and less reactive oxygen species (ROS) accumulation. Transcriptome analysis revealed that overexpression of SlBBX17 affected the expression of genes involved in GA biosynthetic process, photosynthesis, heat stress, ROS, and other cellular processes. The qRT-PCR analysis indicated that many SlHsf and SlHSP genes are up-regulated by SlBBX17 under heat stress. These results demonstrate that SlBBX17 plays important roles in regulating tomato growth and resistance to heat stress.
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Affiliation(s)
- Xin Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Qi Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Wenqi Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Tixu Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Qiqi Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Yue Yin
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Xiaohui Liu
- Xian Highness Agricultural Science & Technology Co. Ltd., Xian, Shaanxi 710086, China.
| | - Shen He
- Xian Highness Agricultural Science & Technology Co. Ltd., Xian, Shaanxi 710086, China.
| | - Mingke Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Yan Liang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
| | - Jianhua Zhu
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD 20742, USA.
| | - Xiangqiang Zhan
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Horticulture, Northwest A&F University, No.3, Taicheng Road, Yangling, Shaanxi 712100, China.
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87
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Hou Y, Yan Y, Cao X. Epigenetic regulation of thermomorphogenesis in Arabidopsis thaliana. ABIOTECH 2022; 3:12-24. [PMID: 36304197 PMCID: PMC9590556 DOI: 10.1007/s42994-022-00070-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 01/24/2022] [Indexed: 11/25/2022]
Abstract
Temperature is a key factor in determining plant growth and development, geographical distribution, and seasonal behavior. Plants accurately sense subtle changes in ambient temperature and alter their growth and development accordingly to improve their chances of survival and successful propagation. Thermomorphogenesis encompasses a variety of morphological changes that help plants acclimate to warm environmental temperatures. Revealing the molecular mechanism of thermomorphogenesis is important for breeding thermo-tolerant crops and ensuring food security under global climate change. Plant adaptation to elevated ambient temperature is regulated by multiple signaling pathways and epigenetic mechanisms such as histone modifications, histone variants, and non-coding RNAs. In this review, we summarize recent advances in the mechanism of epigenetic regulation during thermomorphogenesis with a focus on the model plant Arabidopsis thaliana and briefly discuss future prospects for this field.
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Affiliation(s)
- Yifeng Hou
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Yan Yan
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101 China
| | - Xiaofeng Cao
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
- Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Beijing, 100101 China
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88
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Haider S, Iqbal J, Naseer S, Shaukat M, Abbasi BA, Yaseen T, Zahra SA, Mahmood T. Unfolding molecular switches in plant heat stress resistance: A comprehensive review. PLANT CELL REPORTS 2022; 41:775-798. [PMID: 34401950 DOI: 10.1007/s00299-021-02754-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
Plant heat stress response is a multi-factorial trait that is precisely regulated by the complex web of transcription factors from various families that modulate heat stress responsive gene expression. Global warming due to climate change affects plant growth and development throughout its life cycle. Adds to this, the frequent occurrence of heat waves is drastically reducing the global crop yield. Molecular plant scientists can help crop breeders by providing genetic markers associated with stress resistance. Plant heat stress response (HSR), however, is a multi-factorial trait and using a single stress resistance trait might not be ideal to develop thermotolerant crops. Transcription factors participate in regulation of plant biological processes and environmental stress responses. Recent studies have revealed that plant HSR is precisely regulated by the complex web of transcription factors from various families. These transcription factors enhance plant heat stress tolerance by regulating the expression level of several stress-responsive genes independently or in cross talk with different other transcription factors. This review explores how signaling pathways triggered by heat stress are regulated by multiple transcription factor families. To our knowledge, we for the first time analyze the role of major transcription factor families in plant HSR along with their regulatory mechanisms. In the end, we will also discuss the potential of emerging technologies to improve thermotolerance in plants.
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Affiliation(s)
- Saqlain Haider
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Javed Iqbal
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan.
| | - Sana Naseer
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Muzzafar Shaukat
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Banzeer Ahsan Abbasi
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Tabassum Yaseen
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Syeda Anber Zahra
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Tariq Mahmood
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
- Pakistan Academy of Sciences, Islamabad, Pakistan.
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89
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Post-translational modification: a strategic response to high temperature in plants. ABIOTECH 2022; 3:49-64. [PMID: 36304199 PMCID: PMC9590526 DOI: 10.1007/s42994-021-00067-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 12/22/2021] [Indexed: 11/21/2022]
Abstract
With the increasing global warming, high-temperature stress is affecting plant growth and development with greater frequency. Therefore, an increasing number of studies examining the mechanism of temperature response contribute to a more optimal understanding of plant growth under environmental pressure. Post-translational modification (PTM) provides the rapid reconnection of transcriptional programs including transcription factors and signaling proteins. It is vital that plants quickly respond to changes in the environment in order to survive under stressful situations. Herein, we discuss several types of PTMs that occur in response to warm-temperature and high-temperature stress, including ubiquitination, SUMOylation, phosphorylation, histone methylation, and acetylation. This review provides a valuable resolution to this issue to enable increased crop productivity at high temperatures.
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90
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Yu B, Ming F, Liang Y, Wang Y, Gan Y, Qiu Z, Yan S, Cao B. Heat Stress Resistance Mechanisms of Two Cucumber Varieties from Different Regions. Int J Mol Sci 2022; 23:ijms23031817. [PMID: 35163740 PMCID: PMC8837171 DOI: 10.3390/ijms23031817] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/12/2022] [Accepted: 01/22/2022] [Indexed: 02/01/2023] Open
Abstract
High temperatures affect the yield and quality of vegetable crops. Unlike thermosensitive plants, thermotolerant plants have excellent systems for withstanding heat stress. This study evaluated various heat resistance indexes of the thermotolerant cucumber (TT) and thermosensitive cucumber (TS) plants at the seedling stage. The similarities and differences between the regulatory genes were assessed through transcriptome analysis to understand the mechanisms for heat stress resistance in cucumber. The TT plants exhibited enhanced leaf status, photosystem, root viability, and ROS scavenging under high temperature compared to the TS plants. Additionally, transcriptome analysis showed that the genes involved in photosynthesis, the chlorophyll metabolism, and defense responses were upregulated in TT plants but downregulated in TS plants. Zeatin riboside (ZR), brassinosteroid (BR), and jasmonic acid (JA) levels were higher in TT plants than in TS. The heat stress increased gibberellic acid (GA) and indoleacetic acid (IAA) levels in both plant lines; however, the level of GA was higher in TT. Correlation and interaction analyses revealed that heat cucumber heat resistance is regulated by a few transcription factor family genes and metabolic pathways. Our study revealed different phenotypic and physiological mechanisms of the heat response by the thermotolerant and thermosensitive cucumber plants. The plants were also shown to exhibit different expression profiles and metabolic pathways. The heat resistant pathways and genes of two cucumber varieties were also identified. These results enhance our understanding of the molecular mechanisms of cucumber response to high-temperature stress.
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Affiliation(s)
- Bingwei Yu
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Fangyan Ming
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Yonggui Liang
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Yixi Wang
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Yuwei Gan
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Zhengkun Qiu
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Shuangshuang Yan
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (S.Y.); (B.C.)
| | - Bihao Cao
- Key Laboratory of Horticultural Crop Biology and Germplasm Innovation in South China, Ministry of Agriculture, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (B.Y.); (F.M.); (Y.L.); (Y.W.); (Y.G.); (Z.Q.)
- Guangdong Vegetable Engineering and Technology Research Center, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (S.Y.); (B.C.)
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91
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Zhou P, Enders TA, Myers ZA, Magnusson E, Crisp PA, Noshay JM, Gomez-Cano F, Liang Z, Grotewold E, Greenham K, Springer NM. Prediction of conserved and variable heat and cold stress response in maize using cis-regulatory information. THE PLANT CELL 2022; 34:514-534. [PMID: 34735005 PMCID: PMC8773969 DOI: 10.1093/plcell/koab267] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/27/2021] [Indexed: 05/04/2023]
Abstract
Changes in gene expression are important for responses to abiotic stress. Transcriptome profiling of heat- or cold-stressed maize genotypes identifies many changes in transcript abundance. We used comparisons of expression responses in multiple genotypes to identify alleles with variable responses to heat or cold stress and to distinguish examples of cis- or trans-regulatory variation for stress-responsive expression changes. We used motifs enriched near the transcription start sites (TSSs) for thermal stress-responsive genes to develop predictive models of gene expression responses. Prediction accuracies can be improved by focusing only on motifs within unmethylated regions near the TSS and vary for genes with different dynamic responses to stress. Models trained on expression responses in a single genotype and promoter sequences provided lower performance when applied to other genotypes but this could be improved by using models trained on data from all three genotypes tested. The analysis of genes with cis-regulatory variation provides evidence for structural variants that result in presence/absence of transcription factor binding sites in creating variable responses. This study provides insights into cis-regulatory motifs for heat- and cold-responsive gene expression and defines a framework for developing models to predict expression responses across multiple genotypes.
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Affiliation(s)
- Peng Zhou
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Tara A Enders
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Zachary A Myers
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Erika Magnusson
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Peter A Crisp
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Jaclyn M Noshay
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Fabio Gomez-Cano
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, USA
| | - Zhikai Liang
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Erich Grotewold
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, Michigan 48824, USA
| | - Kathleen Greenham
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
| | - Nathan M Springer
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota 55108, USA
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92
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The Heat Stress Transcription Factor LlHsfA4 Enhanced Basic Thermotolerance through Regulating ROS Metabolism in Lilies ( Lilium Longiflorum). Int J Mol Sci 2022; 23:ijms23010572. [PMID: 35009000 PMCID: PMC8745440 DOI: 10.3390/ijms23010572] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/29/2021] [Accepted: 12/30/2021] [Indexed: 02/06/2023] Open
Abstract
Heat stress severely affects the annual agricultural production. Heat stress transcription factors (HSFs) represent a critical regulatory juncture in the heat stress response (HSR) of plants. The HsfA1-dependent pathway has been explored well, but the regulatory mechanism of the HsfA1-independent pathway is still under-investigated. In the present research, HsfA4, an important gene of the HsfA1-independent pathway, was isolated from lilies (Lilium longiflorum) using the RACE method, which encodes 435 amino acids. LlHsfA4 contains a typical domain of HSFs and belongs to the HSF A4 family, according to homology comparisons and phylogenetic analysis. LlHsfA4 was mainly expressed in leaves and was induced by heat stress and H2O2 using qRT-PCR and GUS staining in transgenic Arabidopsis. LlHsfA4 had transactivation activity and was located in the nucleus and cytoplasm through a yeast one hybrid system and through transient expression in lily protoplasts. Over expressing LlHsfA4 in Arabidopsis enhanced its basic thermotolerance, but acquired thermotolerance was not achieved. Further research found that heat stress could increase H2O2 content in lily leaves and reduced H2O2 accumulation in transgenic plants, which was consistent with the up-regulation of HSR downstream genes such as Heat stress proteins (HSPs), Galactinol synthase1 (GolS1), WRKY DNA binding protein 30 (WRKY30), Zinc finger of Arabidopsis thaliana 6 (ZAT6) and the ROS-scavenging enzyme Ascorbate peroxidase 2 (APX2). In conclusion, these results indicate that LlHsfA4 plays important roles in heat stress response through regulating the ROS metabolism in lilies.
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93
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Zou T, Pu L, Lin R, Mo H, Wang Z, Jian S, Zhang M. Roles of Canavalia rosea metallothioneins in metal tolerance and extreme environmental adaptation to tropical coral reefs. JOURNAL OF PLANT PHYSIOLOGY 2022; 268:153559. [PMID: 34839100 DOI: 10.1016/j.jplph.2021.153559] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
Canavalia rosea (Sw.) DC is a perennial twining herb distributed in the semi-arid and saline-alkali areas of coastal regions and has evolved halotolerance. In this study, we present the first comprehensive survey of the metallothionein (MT) gene family in C. rosea. MT proteins belong to a family of low-molecular-weight polypeptides with a high content of cysteine residues, which have an affinity to bind with heavy metal ions. MTs also play important roles in stress responses as reactive oxygen species (ROS) scavengers. A total of six CrMTs were identified in the C. rosea genome and classified into four subgroups by phylogenetic analysis. An analysis of the cis-acting elements revealed that a series of hormone-, stress-, and development-related cis-acting elements were present in the promoter regions of CrMTs. The expression of CrMTs also showed habitat- and environmental stress-regulated patterns in C. rosea. CrMT overexpression in yeast enhanced tolerance to heavy metals and ROS, as well as high osmotic and alkalinity stress, which is consistent with their predicted roles as metal-chelating proteins and ROS scavengers. Our results indicate that the CrMT genes might contribute to the detoxification of plants to metals and provide marked tolerance against abiotic stress. The expression patterns of CrMTs in C. rosea also indicate that CrMTs play important roles in this species' response to extreme environments on tropical islands and reefs, probably by improving the thermotolerance of C. rosea plants.
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Affiliation(s)
- Tao Zou
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100039, China
| | - Lin Pu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100039, China; CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Ruoyi Lin
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of the Chinese Academy of Sciences, Beijing, 100039, China; CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Hui Mo
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China; CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Zhengfeng Wang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou, 511458, China
| | - Shuguang Jian
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China
| | - Mei Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement & Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, 510650, China.
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Xia S, Liu H, Cui Y, Yu H, Rao Y, Yan Y, Zeng D, Hu J, Zhang G, Gao Z, Zhu L, Shen L, Zhang Q, Li Q, Dong G, Guo L, Qian Q, Ren D. UDP-N-acetylglucosamine pyrophosphorylase enhances rice survival at high temperature. THE NEW PHYTOLOGIST 2022; 233:344-359. [PMID: 34610140 DOI: 10.1111/nph.17768] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/22/2021] [Indexed: 05/25/2023]
Abstract
High-temperature stress inhibits normal cellular processes and results in abnormal growth and development in plants. However, the mechanisms by which rice (Oryza sativa) copes with high temperature are not yet fully understood. In this study, we identified a rice high temperature enhanced lesion spots 1 (hes1) mutant, which displayed larger and more dense necrotic spots under high temperature conditions. HES1 encoded a UDP-N-acetylglucosamine pyrophosphorylase, which had UGPase enzymatic activity. RNA sequencing analysis showed that photosystem-related genes were differentially expressed in the hes1 mutant at different temperatures, indicating that HES1 plays essential roles in maintaining chloroplast function. HES1 expression was induced under high temperature conditions. Furthermore, loss-of-function of HES1 affected heat shock factor expression and its mutation exhibited greater vulnerability to high temperature. Several experiments revealed that higher accumulation of reactive oxygen species occurred in the hes1 mutant at high temperature. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and comet experiments indicated that the hes1 underwent more severe DNA damage at high temperature. The determination of chlorophyll content and chloroplast ultrastructure showed that more severe photosystem defects occurred in the hes1 mutant under high temperature conditions. This study reveals that HES1 plays a key role in adaptation to high-temperature stress in rice.
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Affiliation(s)
- Saisai Xia
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - He Liu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Yuanjiang Cui
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Haiping Yu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Yuchun Rao
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Yuping Yan
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Dali Zeng
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Jiang Hu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Guangheng Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Zhenyu Gao
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Li Zhu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Lan Shen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Qiang Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Qing Li
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Guojun Dong
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Longbiao Guo
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Qian Qian
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
| | - Deyong Ren
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China
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Ding H, Qian L, Jiang H, Ji Y, Fang Y, Sheng J, Xu X, Ge C. Overexpression of a Bcl-2-associated athanogene SlBAG9 negatively regulates high-temperature response in tomato. Int J Biol Macromol 2022; 194:695-705. [PMID: 34822834 DOI: 10.1016/j.ijbiomac.2021.11.114] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/07/2021] [Accepted: 11/16/2021] [Indexed: 12/18/2022]
Abstract
The Bcl-2-associated athanogene (BAG) gene is a multi-functional family of co-chaperones regulator, modulating plant stress response. Our previous study revealed that the SlBAG9 of tomato (Solanum lycopersicum) had the higher expression level induced by high-temperature (HT) at the transcriptional and protein levels, but its biological function was still unclear. Here, we conducted an in-depth analysis of SlBAG9. SlBAG9 protein was not located in the mitochondria but in the cytoplasm and nucleus. Many cis-acting elements involved in plant stress and hormone responses were located in the promoter regions of SlBAG9 including heat-shock element (HSE1). The β-glucuronidase (GUS) histochemical analysis showed that SlBAG9 promoter could drive GUS gene expression in transiently transformed Nicotiana tabacum leaves under non-inducing condition and HSE1 is critical for HT-induced GUS activity under HT. The transcription of SlBAG9 was expressed in different organs and was regulated by HT, cold, drought, and salt stresses as well as exogenous abscisic acid (ABA) and H2O2. To further elucidate SlBAG9 function in response to HT, the transgenic tomato plants overexpressing SlBAG9 were developed. Compared to the wild-type plants, SlBAG9-overexpressing plants exhibited more sensitivity to HT stress, reflected by the burning symptoms, the degradation of chlorophyll, and the reduction of photosynthetic rates. Additionally, SlBAG9-overexpressing lines showed higher accumulation of lipid peroxidation production (MDA) and H2O2, but lower activities of superoxide dismutase, catalase, and peroxidase. Therefore, it is speculated that SlBAG9 plays a negative role in thermotolerance probably by inhibition of antioxidant enzyme system leading to the oxidative damage, consequently aggravating the HT-caused injury phenotype.
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Affiliation(s)
- Haidong Ding
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China.
| | - Lu Qian
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Hailong Jiang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yurong Ji
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yifang Fang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Jiarong Sheng
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Xiaoying Xu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Cailin Ge
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
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96
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Sun AZ, Chen LS, Tang M, Chen JH, Li H, Jin XQ, Yi Y, Guo FQ. Lipidomic Remodeling in Begonia grandis Under Heat Stress. FRONTIERS IN PLANT SCIENCE 2022; 13:843942. [PMID: 35251112 PMCID: PMC8891222 DOI: 10.3389/fpls.2022.843942] [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: 12/27/2021] [Accepted: 01/27/2022] [Indexed: 05/15/2023]
Abstract
Characterization of the alterations in leaf lipidome in Begonia (Begonia grandis Dry subsp. sinensis) under heat stress will aid in understanding the mechanisms of stress adaptation to high-temperature stress often occurring during hot seasons at southern areas in China. The comparative lipidomic analysis was performed using leaves taken from Begonia plants exposed to ambient temperature or heat stress. The amounts of total lipids and major lipid classes, including monoacylglycerol (MG), diacylglycerol (DG), triacylglycerols (TG), and ethanolamine-, choline-, serine-, inositol glycerophospholipids (PE, PC, PS, PI) and the variations in the content of lipid molecular species, were analyzed and identified by tandem high-resolution mass spectrometry. Upon exposure to heat stress, a substantial increase in three different types of TG, including 18:0/16:0/16:0, 16:0/16:0/18:1, and 18:3/18:3/18:3, was detected, which marked the first stage of adaptation processes. Notably, the reduced accumulation of some phospholipids, including PI, PC, and phosphatidylglycerol (PG) was accompanied by an increased accumulation of PS, PE, and phosphatidic acid (PA) under heat stress. In contrast to the significant increase in the abundance of TG, all of the detected lysophospholipids and sphingolipids were dramatically reduced in the Begonia leaves exposed to heat stress, suggesting that a very dynamic and specified lipid remodeling process is highly coordinated and synchronized in adaptation to heat stress in Begonia plants.
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Affiliation(s)
- Ai-Zhen Sun
- 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, China
| | - Li-Sha Chen
- 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, China
| | - Ming Tang
- Key Laboratory of State Forestry Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, Guizhou Normal University, Guiyang, China
| | - Juan-Hua Chen
- 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, China
| | - Han 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, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xue-Qi Jin
- 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, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yin Yi
- Key Laboratory of Plant Physiology and Developmental Regulation, School of Life Sciences, Guizhou Normal University, Guiyang, China
- *Correspondence: Yin Yi,
| | - Fang-Qing Guo
- 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, China
- Fang-Qing Guo,
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97
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Li Y, Li X, Zhang J, Li D, Yan L, You M, Zhang J, Lei X, Chang D, Ji X, An J, Li M, Bai S, Yan J. Physiological and Proteomic Responses of Contrasting Alfalfa ( Medicago sativa L.) Varieties to High Temperature Stress. FRONTIERS IN PLANT SCIENCE 2021; 12:753011. [PMID: 34956258 PMCID: PMC8695758 DOI: 10.3389/fpls.2021.753011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
High temperature (HT) is an important factor for limiting global plant distribution and agricultural production. As the global temperature continues to rise, it is essential to clarify the physiological and molecular mechanisms of alfalfa responding the high temperature, which will contribute to the improvement of heat resistance in leguminous crops. In this study, the physiological and proteomic responses of two alfalfa (Medicago sativa L.) varieties contrasting in heat tolerance, MS30 (heat-tolerant) and MS37 (heat-sensitive), were comparatively analyzed under the treatments of continuously rising temperatures for 42 days. The results showed that under the HT stress, the chlorophyll content and the chlorophyll fluorescence parameter (Fv/Fm) of alfalfa were significant reduced and some key photosynthesis-related proteins showed a down-regulated trend. Moreover, the content of Malondialdehyde (MDA) and the electrolyte leakage (EL) of alfalfa showed an upward trend, which indicates both alfalfa varieties were damaged under HT stress. However, because the antioxidation-reduction and osmotic adjustment ability of MS30 were significantly stronger than MS37, the damage degree of the photosynthetic system and membrane system of MS30 is significantly lower than that of MS37. On this basis, the global proteomics analysis was undertaken by tandem mass tags (TMT) technique, a total of 6,704 proteins were identified and quantified. Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated that a series of key pathways including photosynthesis, metabolism, adjustment and repair were affected by HT stress. Through analyzing Venn diagrams of two alfalfa varieties, 160 and 213 differentially expressed proteins (DEPs) that had dynamic changes under HT stress were identified from MS30 and MS37, respectively. Among these DEPs, we screened out some key DEPs, such as ATP-dependent zinc metalloprotease FTSH protein, vitamin K epoxide reductase family protein, ClpB3, etc., which plays important functions in response to HT stress. In conclusion, the stronger heat-tolerance of MS30 was attributed to its higher adjustment and repair ability, which could cause the metabolic process of MS30 is more conducive to maintaining its survival and growth than MS37, especially at the later period of HT stress. This study provides a useful catalog of the Medicago sativa L. proteomes with the insight into its future genetic improvement of heat-resistance.
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Affiliation(s)
- Yingzhu Li
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Xinrui Li
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Jin Zhang
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Daxu Li
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Lijun Yan
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Minghong You
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Jianbo Zhang
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Xiong Lei
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Dan Chang
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Xiaofei Ji
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Jinchan An
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
- Institute of Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Mingfeng Li
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
- Institute of Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, China
| | - Shiqie Bai
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
| | - Jiajun Yan
- Institute of Herbaceous Plants, Sichuan Academy of Grassland Science, Chengdu, China
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98
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Haider S, Iqbal J, Naseer S, Yaseen T, Shaukat M, Bibi H, Ahmad Y, Daud H, Abbasi NL, Mahmood T. Molecular mechanisms of plant tolerance to heat stress: current landscape and future perspectives. PLANT CELL REPORTS 2021; 40:2247-2271. [PMID: 33890138 DOI: 10.1007/s00299-021-02696-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
We summarize recent studies focusing on the molecular basis of plant heat stress response (HSR), how HSR leads to thermotolerance, and promote plant adaptation to recurring heat stress events. The global crop productivity is facing unprecedented threats due to climate change as high temperature negatively influences plant growth and metabolism. Owing to their sessile nature, plants have developed complex signaling networks which enable them to perceive changes in ambient temperature. This in turn activates a suite of molecular changes that promote plant survival and reproduction under adverse conditions. Deciphering these mechanisms is an important task, as this could facilitate development of molecular markers, which could be ultimately used to breed thermotolerant crop cultivars. In current article, we summarize mechanisms involve in plant heat stress acclimation with special emphasis on advances related to heat stress perception, heat-induced signaling, heat stress-responsive gene expression and thermomemory that promote plant adaptation to short- and long-term-recurring heat-stress events. In the end, we will discuss impact of emerging technologies that could facilitate the development of heat stress-tolerant crop cultivars.
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Affiliation(s)
- Saqlain Haider
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Javed Iqbal
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
- Center for Plant Sciences and Biodiversity, University of Swat, Kanju, 19201, Pakistan.
| | - Sana Naseer
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Tabassum Yaseen
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Muzaffar Shaukat
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Haleema Bibi
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Yumna Ahmad
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Hina Daud
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Nayyab Laiba Abbasi
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Tariq Mahmood
- Plant Biochemistry and Molecular Biology Laboratory, Department of Plant Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
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99
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He K, Mei H, Zhu J, Qiu Q, Cao X, Deng X. The histone H3K27 demethylase REF6/JMJ12 Promotes thermomorphogenesis in Arabidopsis. Natl Sci Rev 2021; 9:nwab213. [PMID: 35591912 PMCID: PMC9113104 DOI: 10.1093/nsr/nwab213] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Dynamic trimethylation of histone H3 at Lys27 (H3K27me3) affects gene expression and controls plant development and environmental responses. In Arabidopsis thaliana, RELATIVE OF EARLY FLOWERING 6 (REF6)/JUMONJI DOMAIN-CONTAINING PROTEIN 12 demethylates H3K27me3 by recognizing a specific DNA motif. However, little is known about how REF6 activates target gene expression after recognition, especially in environmental responses. In response to warm ambient temperature, plants undergo thermomorphogenesis, which involves accelerated growth, early flowering and changes in morphology. Here we show that REF6 regulates thermomorphogenesis and cooperates with the transcription factor PHYTOCHROME INTERACTING FACTOR 4 to synergistically activate thermoresponsive genes under warm ambient temperature. The ref6 loss-of-function mutants exhibited attenuated hypocotyl elongation at warm temperature, partially due to downregulation of GIBBERELLIN 20-OXIDASE 2 and BASIC HELIX-LOOP-HELIX 87. REF6 enzymatic activity is necessary for warm ambient temperature responses. Together, our results provide direct evidence of an epigenetic modifier and a transcription factor working together to respond to the environment.
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Affiliation(s)
- Kaixuan He
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Hainan Yazhou Bay Seed Lab, Sanya, Hainan, China
| | - Hailiang Mei
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Jiaping Zhu
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qi Qiu
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Xiaofeng Cao
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Beijing, China
| | - Xian Deng
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
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100
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Molecular Analysis Uncovers the Mechanism of Fertility Restoration in Temperature-Sensitive Polima Cytoplasmic Male-Sterile Brassica napus. Int J Mol Sci 2021; 22:ijms222212450. [PMID: 34830333 PMCID: PMC8617660 DOI: 10.3390/ijms222212450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/17/2022] Open
Abstract
Temperature-sensitive male sterility is a heritable agronomic trait affected by genotype-environment interactions. In rapeseed (Brassica napus), Polima (pol) temperature-sensitive cytoplasmic male sterility (TCMS) is commonly used for two-line breeding, as the fertility of pol TCMS lines can be partially restored at certain temperatures. However, little is known about the underlying molecular mechanism that controls fertility restoration. Therefore, we aimed to investigate the fertility conversion mechanism of the pol TCMS line at two different ambient temperatures (16 °C and 25 °C). Our results showed that the anthers developed and produced vigorous pollen at 16 °C but not at 25 °C. In addition, we identified a novel co-transcript of orf224-atp6 in the mitochondria that might lead to fertility conversion of the pol TCMS line. RNA-seq analysis showed that 1637 genes were significantly differentially expressed in the fertile flowers of 596-L when compared to the sterile flower of 1318 and 596-H. Detailed analysis revealed that differentially expressed genes were involved in temperature response, ROS accumulation, anther development, and mitochondrial function. Single-molecule long-read isoform sequencing combined with RNA sequencing revealed numerous genes produce alternative splicing transcripts at high temperatures. Here, we also found that alternative oxidase, type II NAD(P)H dehydrogenases, and transcription factor Hsfs might play a crucial role in male fertility under the low-temperature condition. RNA sequencing and bulked segregant analysis coupled with whole-genome sequencing identified the candidate genes involved in the post-transcriptional modification of orf224. Overall, our study described a putative mechanism of fertility restoration in a pol TCMS line controlled by ambient temperature that might help utilise TCMS in the two-line breeding of Brassica crops.
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