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Abdelrahman M, Gorafi YSA, Sulieman S, Jogaiah S, Gupta A, Tsujimoto H, Nguyen HT, Herrera-Estrella L, Tran LSP. Wild grass-derived alleles represent a genetic architecture for the resilience of modern common wheat to stresses. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 38935838 DOI: 10.1111/tpj.16887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 05/28/2024] [Accepted: 06/03/2024] [Indexed: 06/29/2024]
Abstract
This review explores the integration of wild grass-derived alleles into modern bread wheat breeding to tackle the challenges of climate change and increasing food demand. With a focus on synthetic hexaploid wheat, this review highlights the potential of genetic variability in wheat wild relatives, particularly Aegilops tauschii, for improving resilience to multifactorial stresses like drought, heat, and salinity. The evolutionary journey of wheat (Triticum spp.) from diploid to hexaploid species is examined, revealing significant genetic contributions from wild grasses. We also emphasize the importance of understanding incomplete lineage sorting in the genomic evolution of wheat. Grasping this information is crucial as it can guide breeders in selecting the appropriate alleles from the gene pool of wild relatives to incorporate into modern wheat varieties. This approach improves the precision of phylogenetic relationships and increases the overall effectiveness of breeding strategies. This review also addresses the challenges in utilizing the wheat wild genetic resources, such as the linkage drag and cross-compatibility issues. Finally, we culminate the review with future perspectives, advocating for a combined approach of high-throughput phenotyping tools and advanced genomic techniques to comprehensively understand the genetic and regulatory architectures of wheat under stress conditions, paving the way for more precise and efficient breeding strategies.
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Affiliation(s)
- Mostafa Abdelrahman
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
| | - Yasir Serag Alnor Gorafi
- Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kitashirakawa, 606-8502, Kyoto, Japan
| | - Saad Sulieman
- Department of Agronomy, Faculty of Agriculture, University of Khartoum, Khartoum North, 13314, Sudan
| | - Sudisha Jogaiah
- Department of Environmental Science, Central University of Kerala, Periye, Kasaragod, 671316, Kerala, India
| | - Aarti Gupta
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
| | - Hisashi Tsujimoto
- Arid Land Research Center, Tottori University, Tottori, 680-0001, Japan
| | - Henry T Nguyen
- Division of Plant Sciences and Technology, University of Missouri, Columbia, 65211, Missouri, USA
| | - Luis Herrera-Estrella
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
- Unidad de Genomica Avanzada, Centro de Investigación y de Estudios Avanzados del Intituto Politécnico Nacional, Irapuato, 36821, Mexico
| | - Lam-Son Phan Tran
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, 79409, Texas, USA
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Batool A, Li SS, Yue DX, Ullah F, Zhao L, Cheng ZG, Wang C, Duan HX, Lv GC, Haq ZU, Ahmed K, Gui YW, Zhu L, Xiao YL, Xiong YC. Root-to-shoot signaling positively mediates source-sink relation in late growth stages in diploid and tetraploid wheat. BMC PLANT BIOLOGY 2024; 24:492. [PMID: 38831289 PMCID: PMC11145845 DOI: 10.1186/s12870-024-05046-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 04/19/2024] [Indexed: 06/05/2024]
Abstract
Non-hydraulic root source signaling (nHRS) is a unique positive response to soil drying in the regulation of plant growth and development. However, it is unclear how the nHRS mediates the tradeoff between source and sink at the late growth stages and its adaptive mechanisms in primitive wheat. To address this issue, a root-splitting design was made by inserting solid partition in the middle of the pot culture to induce the occurrence of nHRS using four wheat cultivars (MO1 and MO4, diploid; DM22 and DM31, tetraploid) as materials. Three water treatments were designed as 1) both halves watered (CK), 2) holistic root system watered then droughted (FS), 3) one-half of the root system watered and half droughted (PS). FS and PS were designed to compare the role of the full root system and split root system to induce nHRS. Leaves samples were collected during booting and anthesis to compare the role of nHRS at both growth stages. The data indicated that under PS treatment, ABA concentration was significantly higher than FS and CK, demonstrating the induction of nHRS in split root design and nHRS decreased cytokinin (ZR) levels, particularly in the PS treatment. Soluble sugar and proline accumulation were higher in the anthesis stage as compared to the booting stage. POD activity was higher at anthesis, while CAT was higher at the booting stage. Increased ABA (nHRS) correlated with source-sink relationships and metabolic rate (i.e., leaf) connecting other stress signals. Biomass density showed superior resource acquisition and utilization capabilities in both FS and PS treatment as compared to CK in all plants. Our findings indicate that nHRS-induced alterations in phytohormones and their effect on source-sink relations were allied with the growth stages in primitive wheat.
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Affiliation(s)
- Asfa Batool
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, China
- MOE Key Laboratory of Western China's Environmental Systems, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Shi-Sheng Li
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, China
| | - Dong-Xia Yue
- MOE Key Laboratory of Western China's Environmental Systems, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Fazal Ullah
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Ling Zhao
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Zheng-Guo Cheng
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Chao Wang
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, China
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Hai-Xia Duan
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Guang-Chao Lv
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Zeeshan Ul Haq
- Faculty of Agriculture, University of Sargodha, Sargodha, 40100, Pakistan
| | - Khalil Ahmed
- Faculty of Agriculture, University of Sargodha, Sargodha, 40100, Pakistan
| | - Yan-Wen Gui
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Li Zhu
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, China
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China
| | - Yun-Li Xiao
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, China.
| | - You-Cai Xiong
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang, 438000, China.
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, 730000, China.
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3
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Canales J, Verdejo JF, Calderini DF. Transcriptome and Physiological Analysis of Rapeseed Tolerance to Post-Flowering Temperature Increase. Int J Mol Sci 2023; 24:15593. [PMID: 37958577 PMCID: PMC10648292 DOI: 10.3390/ijms242115593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/15/2023] Open
Abstract
Climate-change-induced temperature fluctuations pose a significant threat to crop production, particularly in the Southern Hemisphere. This study investigates the transcriptome and physiological responses of rapeseed to post-flowering temperature increases, providing valuable insights into the molecular mechanisms underlying rapeseed tolerance to heat stress. Two rapeseed genotypes, Lumen and Solar, were assessed under control and heat stress conditions in field experiments conducted in Valdivia, Chile. Results showed that seed yield and seed number were negatively affected by heat stress, with genotype-specific responses. Lumen exhibited an average of 9.3% seed yield reduction, whereas Solar showed a 28.7% reduction. RNA-seq analysis of siliques and seeds revealed tissue-specific responses to heat stress, with siliques being more sensitive to temperature stress. Hierarchical clustering analysis identified distinct gene clusters reflecting different aspects of heat stress adaptation in siliques, with a role for protein folding in maintaining silique development and seed quality under high-temperature conditions. In seeds, three distinct patterns of heat-responsive gene expression were observed, with genes involved in protein folding and response to heat showing genotype-specific expression. Gene coexpression network analysis revealed major modules for rapeseed yield and quality, as well as the trade-off between seed number and seed weight. Overall, this study contributes to understanding the molecular mechanisms underlying rapeseed tolerance to heat stress and can inform crop improvement strategies targeting yield optimization under changing environmental conditions.
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Affiliation(s)
- Javier Canales
- Institute of Biochemistry and Microbiology, Faculty of Sciences, Universidad Austral de Chile, Valdivia 5110566, Chile
- ANID-Millennium Science Initiative Program-Millennium Institute for Integrative Biology (iBio), Santiago 8331150, Chile
| | - José F. Verdejo
- Graduate School, Faculty of Agricultural Sciences, Universidad Austral de Chile, Valdivia 5110566, Chile;
- Plant Production and Plant Protection Institute, Faculty of Agricultural Sciences, Universidad Austral de Chile, Valdivia 5110566, Chile
| | - Daniel F. Calderini
- Plant Production and Plant Protection Institute, Faculty of Agricultural Sciences, Universidad Austral de Chile, Valdivia 5110566, Chile
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Mandal S, Anand U, López-Bucio J, Radha, Kumar M, Lal MK, Tiwari RK, Dey A. Biostimulants and environmental stress mitigation in crops: A novel and emerging approach for agricultural sustainability under climate change. ENVIRONMENTAL RESEARCH 2023; 233:116357. [PMID: 37295582 DOI: 10.1016/j.envres.2023.116357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 04/05/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023]
Abstract
Pesticide and fertilizer usage is at the center of agricultural production to meet the demands of an ever-increasing global population. However, rising levels of chemicals impose a serious threat to the health of humans, animals, plants, and even the entire biosphere because of their toxic effects. Biostimulants offer the opportunity to reduce the agricultural chemical footprint owing their multilevel, beneficial properties helping to make agriculture more sustainable and resilient. When applied to plants or to the soil an increased absorption and distribution of nutrients, tolerance to environmental stress, and improved quality of plant products explain the mechanisms by which these probiotics are useful. In recent years, the use of plant biostimulants has received widespread attention across the globe as an ecologically acceptable alternative to sustainable agricultural production. As a result, their worldwide market continues to grow, and further research will be conducted to broaden the range of the products now available. Through this review, we present a current understanding of biostimulants, their mode of action and their involvement in modulating abiotic stress responses, including omics research, which may provide a comprehensive assessment of the crop's response by correlating molecular changes to physiological pathways activated under stress conditions aggravated by climate change.
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Affiliation(s)
- Sayanti Mandal
- Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra, 411007, India; Department of Biotechnology, Dr. D. Y. Patil Arts, Commerce & Science College, Sant Tukaram Nagar, Pimpri, Pune, Maharashtra, 411018, India.
| | - Uttpal Anand
- Zuckerberg Institute for Water Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Midreshet Ben-Gurion, 8499000, Israel
| | - José López-Bucio
- Instituto de Investigaciones Químico-Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edificio B3, Ciudad Universitaria, C.P. 58030, Morelia, Michoacán, Mexico
| | - Radha
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, Himachal Pradesh, India
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR - Central Institute for Research on Cotton Technology, Mumbai, 400019, India
| | - Milan Kumar Lal
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India; ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Rahul Kumar Tiwari
- ICAR-Central Potato Research Institute, Shimla, 171001, Himachal Pradesh, India; ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata, 700073, West Bengal, India.
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Xue X, Beuchat G, Wang J, Yu YC, Moose S, Chen J, Chen LQ. Sugar accumulation enhancement in sorghum stem is associated with reduced reproductive sink strength and increased phloem unloading activity. FRONTIERS IN PLANT SCIENCE 2023; 14:1233813. [PMID: 37767289 PMCID: PMC10519796 DOI: 10.3389/fpls.2023.1233813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023]
Abstract
Sweet sorghum has emerged as a promising source of bioenergy mainly due to its high biomass and high soluble sugar yield in stems. Studies have shown that loss-of-function Dry locus alleles have been selected during sweet sorghum domestication, and decapitation can further boost sugar accumulation in sweet sorghum, indicating that the potential for improving sugar yields is yet to be fully realized. To maximize sugar accumulation, it is essential to gain a better understanding of the mechanism underlying the massive accumulation of soluble sugars in sweet sorghum stems in addition to the Dry locus. We performed a transcriptomic analysis upon decapitation of near-isogenic lines for mutant (d, juicy stems, and green leaf midrib) and functional (D, dry stems and white leaf midrib) alleles at the Dry locus. Our analysis revealed that decapitation suppressed photosynthesis in leaves, but accelerated starch metabolic processes in stems. SbbHLH093 negatively correlates with sugar levels supported by genotypes (DD vs. dd), treatments (control vs. decapitation), and developmental stages post anthesis (3d vs.10d). D locus gene SbNAC074A and other programmed cell death-related genes were downregulated by decapitation, while sugar transporter-encoding gene SbSWEET1A was induced. Both SbSWEET1A and Invertase 5 were detected in phloem companion cells by RNA in situ assay. Loss of the SbbHLH093 homolog, AtbHLH093, in Arabidopsis led to a sugar accumulation increase. This study provides new insights into sugar accumulation enhancement in bioenergy crops, which can be potentially achieved by reducing reproductive sink strength and enhancing phloem unloading.
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Affiliation(s)
- Xueyi Xue
- Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Institute for Sustainability, Energy, and Environment, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Gabriel Beuchat
- Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Jiang Wang
- Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Ya-Chi Yu
- Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Stephen Moose
- Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Jin Chen
- Institute for Biomedical Informatics, University of Kentucky, Lexington, KY, United States
| | - Li-Qing Chen
- Department of Energy (DOE) Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
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6
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Fu M, Liao J, Liu X, Li M, Zhang S. Artificial warming affects sugar signals and flavonoid accumulation to improve female willows' growth faster than males. TREE PHYSIOLOGY 2023; 43:1584-1602. [PMID: 37384415 DOI: 10.1093/treephys/tpad081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 05/25/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
Increasing global warming is severely affecting tree growth and development. However, research on the sex-specific responses of dioecious trees to warming is scarce. Here, male and female Salix paraplesia were selected for artificial warming (an increase of 4 °C relative to ambient temperature) to investigate the effects on morphological, physiological, biochemical and molecular responses. The results showed that warming significantly promoted the growth of female and male S. paraplesia, but females grew faster than males. Warming affected photosynthesis, chloroplast structures, peroxidase activity, proline, flavonoids, nonstructural carbohydrates (NSCs) and phenolic contents in both sexes. Interestingly, warming increased flavonoid accumulation in female roots and male leaves but inhibited it in female leaves and male roots. The transcriptome and proteome results indicated that differentially expressed genes and proteins were significantly enriched in sucrose and starch metabolism and flavonoid biosynthesis pathways. The integrative analysis of transcriptomic, proteomic, biochemical and physiological data revealed that warming changed the expression of SpAMY, SpBGL, SpEGLC and SpAGPase genes, resulting in the reduction of NSCs and starch and the activation of sugar signaling, particularly SpSnRK1s, in female roots and male leaves. These sugar signals subsequently altered the expression of SpHCTs, SpLAR and SpDFR in the flavonoid biosynthetic pathway, ultimately leading to the differential accumulation of flavonoids in female and male S. paraplesia. Therefore, warming causes sexually differential responses of S. paraplesia, with females performing better than males.
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Affiliation(s)
- Mingyue Fu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Jun Liao
- College of Geography and Tourism, Chongqing Normal University, Chongqing 400047, China
| | - Xuejiao Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Menghan Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
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Celi GEA, Gratão PL, Lanza MGDB, Reis ARD. Physiological and biochemical roles of ascorbic acid on mitigation of abiotic stresses in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 202:107970. [PMID: 37625254 DOI: 10.1016/j.plaphy.2023.107970] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 07/28/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
Under conditions of abiotic stress several physiological and biochemical processes in plants can be modified. The production of reactive oxygen species (ROS) is toxic at high concentrations and promotes RNA, DNA and plant cell membrane degradation. Plants have enzymatic and non-enzymatic adaptation mechanisms to act against ROS detoxification. Ascorbic acid (AsA) is the non-enzymatic compound essential for several biological functions, which acts in the elimination and balance of ROS production and with the potential to promote several physiological functions in plants, such as the photosynthetic process. For plant development, AsA plays an important role in cell division, osmotic adjustment, hormone biosynthesis, and as an enzymatic cofactor. In this review, the redox reactions, biosynthetic pathways, and the physiological and biochemical functions of AsA against abiotic stress in plants are discussed. The concentration of AsA in plants can vary between species and depend on the biosynthetic pathways d-mannose/l-galactose, d-galacturonate, euglenids, and d-glucuronate. Although the endogenous levels of AsA in plants are used in large amounts in cell metabolism, the exogenous application of AsA further increases these endogenous levels to promote the antioxidant system and ameliorate the effects produced by abiotic stress. Foliar application of AsA promotes antioxidant metabolism in plants subjected to climate change conditions, also allowing the production of foods with higher nutritional quality and food safety, given the fact that AsA is biologically essential in the human diet.
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Affiliation(s)
- Gabriela Eugenia Ajila Celi
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, Postal Code 14884-900, Jaboticabal, SP, Brazil
| | - Priscila Lupino Gratão
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, Postal Code 14884-900, Jaboticabal, SP, Brazil
| | - Maria Gabriela Dantas Bereta Lanza
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, Postal Code 14884-900, Jaboticabal, SP, Brazil
| | - André Rodrigues Dos Reis
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Rua Domingos da Costa Lopes 780, Postal Code 17602-496, Tupã, SP, Brazil.
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Xu X, Fonseca de Lima CF, Vu LD, De Smet I. When drought meets heat - a plant omics perspective. FRONTIERS IN PLANT SCIENCE 2023; 14:1250878. [PMID: 37674736 PMCID: PMC10478009 DOI: 10.3389/fpls.2023.1250878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/07/2023] [Indexed: 09/08/2023]
Abstract
Changes in weather patterns with emerging drought risks and rising global temperature are widespread and negatively affect crop growth and productivity. In nature, plants are simultaneously exposed to multiple biotic and abiotic stresses, but most studies focus on individual stress conditions. However, the simultaneous occurrence of different stresses impacts plant growth and development differently than a single stress. Plants sense the different stress combinations in the same or in different tissues, which could induce specific systemic signalling and acclimation responses; impacting different stress-responsive transcripts, protein abundance and modifications, and metabolites. This mini-review focuses on the combination of drought and heat, two abiotic stress conditions that often occur together. Recent omics studies indicate common or independent regulators involved in heat or drought stress responses. Here, we summarize the current research results, highlight gaps in our knowledge, and flag potential future focus areas.
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Affiliation(s)
- Xiangyu Xu
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Cassio Flavio Fonseca de Lima
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Lam Dai Vu
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Ive De Smet
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
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Patidar A, Yadav MC, Kumari J, Tiwari S, Chawla G, Paul V. Identification of Climate-Smart Bread Wheat Germplasm Lines with Enhanced Adaptation to Global Warming. PLANTS (BASEL, SWITZERLAND) 2023; 12:2851. [PMID: 37571005 PMCID: PMC10420658 DOI: 10.3390/plants12152851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
Bread wheat (Triticum aestivum L.) is widely grown in sub-tropical and tropical areas and, as such, it is exposed to heatstress especially during the grain filling period (GFP). Global warming has further affected its production and productivity in these heat-stressed environments. We examined the effects of heatstress on 18 morpho-physiological and yield-related traits in 96 bread wheat accessions. Heat stress decreased crop growth and GFP, and consequently reduced morphological and yield-related traits in the delayed sown crop. A low heat susceptibility index and high yield stability were used for selecting tolerant accessions. Under heatstress, the days to 50% anthesis, flag-leaf area, chlorophyll content, normalized difference vegetation index (NDVI), thousand grain weight (TGW), harvest index and grain yield were significantly reduced both in tolerant and susceptible accessions. The reduction was severe in susceptible accessions (48.2% grain yield reduction in IC277741). The plant height, peduncle length and spike length showeda significant reduction in susceptible accessions, but a non-significant reduction in the tolerant accessions under the heatstress. The physiological traits like the canopy temperature depression (CTD), plant waxiness and leaf rolling were increased in tolerant accessions under heatstress. Scanning electron microscopy of matured wheat grains revealed ultrastructural changes in endosperm and aleurone cells due to heat stress. The reduction in size and density of large starch granules is the major cause of the yield and TGW decrease in the heat-stress-susceptible accessions. The most stable and high-yielding accessions, namely, IC566223, IC128454, IC335792, EC576707, IC535176, IC529207, IC446713 and IC416019 were identified as the climate-smart germplasm lines. We selected germplasm lines possessing desirable traits as potential parents for the development of bi-parent and multi-parent mapping populations.
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Affiliation(s)
- Anil Patidar
- Division of Genomic Resources, Indian Council of Agricultural Research (ICAR)-National Bureau of Plant Genetic Resources, New Delhi 110012, India; (A.P.); (S.T.)
- Post-Graduate School, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Mahesh C. Yadav
- Division of Genomic Resources, Indian Council of Agricultural Research (ICAR)-National Bureau of Plant Genetic Resources, New Delhi 110012, India; (A.P.); (S.T.)
| | - Jyoti Kumari
- Division of Germplasm Evaluation, ICAR-National Bureau of Plant Genetic Resources, New Delhi 110012, India;
| | - Shailesh Tiwari
- Division of Genomic Resources, Indian Council of Agricultural Research (ICAR)-National Bureau of Plant Genetic Resources, New Delhi 110012, India; (A.P.); (S.T.)
| | - Gautam Chawla
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India;
| | - Vijay Paul
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
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Fedotova OA, Polyakova EA, Grabelnych OI. Ca 2+-dependent oxidation of exogenous NADH and NADPH by the mitochondria of spring wheat and its relation with AOX capacity and ROS content at high temperatures. JOURNAL OF PLANT PHYSIOLOGY 2023; 283:153943. [PMID: 36841182 DOI: 10.1016/j.jplph.2023.153943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/08/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
Mitochondria are sources of reactive oxygen species (ROS) in a plant cell under high temperature. Mitochondrial alternative NAD(P)H dehydrogenases (type II NAD(P)H DHs) and cyanide-resistant oxidase (AOX) can regulate ROS production, but their role at high temperatures is unknown. This study investigates the influence heat acclimation (37 °C) and heat shock (50 °C) temperatures on ROS content, activity and protein abundance of external Ca2+-dependent NAD(P)H DHs (NDB) and AOX in mitochondria of 4- and 8-day-old seedlings of spring wheat (Triticum aestivum L., var. Novosibirskya 29). The shoots of 4-day-old seedlings contained more carbohydrates, had a higher rate of total respiration and a high rate of oxidation of exogenous NADH, a greater AOX capacity and a lower of ROS content, as compared to leaves of 8-day-old seedlings, and were more resistant to heat shock. The activity of external NADH DH was higher than the one of NADPH DH in mitochondria of both shoots and leaves. At 37 °C, high NADH oxidation was associated with increased AOX capacity in mitochondria of both shoots and leaves, whereas NADPH oxidation with COX capacity. At 50 °C, the NADPH oxidation by shoots' mitochondria increased and the NADH oxidation stayed high. The content of NDB and AOX proteins depends on heat treatments and differs between mitochondria of shoots and leaves. Our data indicate that Ca2+-dependent type II NAD(P)H DHs can regulate the ROS content and together with AOX are involved in heat tolerance, depending on the development phase of spring wheat and is, probably, tissue-specific.
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Affiliation(s)
- Olga A Fedotova
- Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, 132 Lermontov Str., 664033, Irkutsk, Russia.
| | - Elizaveta A Polyakova
- Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, 132 Lermontov Str., 664033, Irkutsk, Russia
| | - Olga I Grabelnych
- Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, 132 Lermontov Str., 664033, Irkutsk, Russia
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11
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Abdelrahman M, Mostofa MG, Tran CD, El-Sayed M, Li W, Sulieman S, Tanaka M, Seki M, Tran LSP. The Karrikin Receptor Karrikin Insensitive2 Positively Regulates Heat Stress Tolerance in Arabidopsis thaliana. PLANT & CELL PHYSIOLOGY 2023; 63:1914-1926. [PMID: 35880749 DOI: 10.1093/pcp/pcac112] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 06/23/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
In this study, we investigated the potential role of the karrikin receptor KARRIKIN INSENSITIVE2 (KAI2) in the response of Arabidopsis seedlings to high-temperature stress. We performed phenotypic, physiological and transcriptome analyses of Arabidopsis kai2 mutants and wild-type (WT) plants under control (kai2_C and WT_C, respectively) and 6- and 24-h heat stress conditions (kai2_H6, kai2_H24, WT_H6 and WT_H24, respectively) to understand the basis for KAI2-regulated heat stress tolerance. We discovered that the kai2 mutants exhibited hypersensitivity to high-temperature stress relative to WT plants, which might be associated with a more highly increased leaf surface temperature and cell membrane damage in kai2 mutant plants. Next, we performed comparative transcriptome analysis of kai2_C, kai2_H6, kai2_H24, WT_C, WT_H6 and WT_H24 to identify transcriptome differences between WT and kai2 mutants in response to heat stress. K-mean clustering of normalized gene expression separated the investigated genotypes into three clusters based on heat-treated and non-treated control conditions. Within each cluster, the kai2 mutants were separated from WT plants, implying that kai2 mutants exhibited distinct transcriptome profiles relative to WT plants. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses showed a repression in 'misfolded protein binding', 'heat shock protein binding', 'unfolded protein binding' and 'protein processing in endoplasmic reticulum' pathways, which was consistent with the downregulation of several genes encoding heat shock proteins and heat shock transcription factors in the kai2 mutant versus WT plants under control and heat stress conditions. Our findings suggest that chemical or genetic manipulation of KAI2 signaling may provide a novel way to improve heat tolerance in plants.
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Affiliation(s)
- Mostafa Abdelrahman
- Faculty of Science, Galala University, Suez, El Sokhna 43511, Egypt
- Botany Department, Faculty of Science, Aswan University, Aswan 81528, Egypt
| | - Mohammad Golam Mostofa
- Department of Plant and Soil Science, Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, TX 79409, USA
| | - Cuong Duy Tran
- Genetic Engineering Department, Agricultural Genetics Institute, Vietnamese Academy of Agricultural Science, Pham Van Dong Street, Hanoi 100000, Viet Nam
| | - Magdi El-Sayed
- Faculty of Science, Galala University, Suez, El Sokhna 43511, Egypt
| | - Weiqiang Li
- Jilin Da'an Agro-ecosystem National Observation Research Station, Changchun Jingyuetan Remote Sensing Experiment Station, Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Kaifeng 475001, China
| | - Saad Sulieman
- Department of Agronomy, Faculty of Agriculture, University of Khartoum, Shambat, Khartoum North 13314, Sudan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045 Japan
- Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Saitama, 351-0198 Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045 Japan
- Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Saitama, 351-0198 Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, 244-0813 Japan
| | - Lam-Son Phan Tran
- Department of Plant and Soil Science, Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, TX 79409, USA
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12
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Tejada-Alvarado JJ, Meléndez-Mori JB, Vilca-Valqui NC, Neri JC, Ayala-Tocto RY, Huaman-Huaman E, Gill ERA, Oliva M, Goñas M. Impact of wild solanaceae rootstocks on morphological and physiological response, yield, and fruit quality of tomato (S olanum lycopersicum L.) grown under deficit irrigation conditions. Heliyon 2022; 9:e12755. [PMID: 36685469 PMCID: PMC9849928 DOI: 10.1016/j.heliyon.2022.e12755] [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: 09/27/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023] Open
Abstract
It has been established that climate change has a direct impact on water availability, an essential resource for agricultural development. As a result, controlling, mitigating, and adapting to water deficit requires the advancement of research on promising wild flora species. As recent studies have shown, wild relatives of certain cultivars are tolerant to adverse factors, enabling the development of sustainable and resilient agriculture. The present study evaluated the morpho-physiology and productivity of tomato scions grafted on wild Solanaceae (Datura stramonium, Solanum sisymbriifolium, Solanum quitoense, and Cyphomandra betacea) grown under water deficit conditions (100% ETc - high level, 75% ETc - moderate level, 50% ETc - medium level, and 25% ETc - low level). The results showed that tomato plants grafted on Datura stramonium rootstocks performed better morpho-physiologically under deficit irrigation. The improved osmoregulation caused by a higher relative water content (98.49%) allowed the scion to be more tolerant to water stress. In addition, these scions showed high water potential during their phenological stages (vegetative -0.47 MPa, flowering -0.59 MPa, and production -0.64 MPa), as well as improved photosynthetic efficiency. The overall tolerance of the scion resulted in better yield (8.14 kg/plant) with higher number of commercially valuable fruits. The D. stramonium rootstock allowed better management and use of irrigation water, increasing productivity (54.95 kg/m3); that is, it is presented as a species with potential for establishing tomato production areas in scenarios of water scarcity or cultivation under deficit irrigation.
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Affiliation(s)
- José Jesús Tejada-Alvarado
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
| | - Jegnes Benjamín Meléndez-Mori
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru,Corresponding author.
| | - Nuri Carito Vilca-Valqui
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
| | - Juan C. Neri
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
| | - Rosmery Y. Ayala-Tocto
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
| | - Eyner Huaman-Huaman
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
| | - Elizabeth Renee Ambler Gill
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru,College of Life Sciences and Agriculture COLSA, University of New Hampshire, Durham, NH, United States
| | - Manuel Oliva
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
| | - Malluri Goñas
- Instituto de Investigación para el Desarrollo Sustentable de Ceja de Selva (INDES-CES), Universidad Nacional Toribio Rodríguez de Mendoza (UNTRM), Chachapoyas 01001, Peru
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13
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Dharni JS, Dhatt BK, Paul P, Gao T, Awada T, Bacher H, Peleg Z, Staswick P, Hupp J, Yu H, Walia H. A non-destructive approach for measuring rice panicle-level photosynthetic responses using 3D-image reconstruction. PLANT METHODS 2022; 18:126. [PMID: 36443862 PMCID: PMC9703705 DOI: 10.1186/s13007-022-00959-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Our understanding of the physiological responses of rice inflorescence (panicle) to environmental stresses is limited by the challenge of accurately determining panicle photosynthetic parameters and their impact on grain yield. This is primarily due to the lack of a suitable gas exchange methodology for panicles and non-destructive methods to accurately determine panicle surface area. RESULTS To address these challenges, we have developed a custom panicle gas exchange cylinder compatible with the LiCor 6800 Infra-red Gas Analyzer. Accurate surface area measurements were determined using 3D panicle imaging to normalize the panicle-level photosynthetic measurements. We observed differential responses in both panicle and flag leaf for two temperate Japonica rice genotypes (accessions TEJ-1 and TEJ-2) exposed to heat stress during early grain filling. There was a notable divergence in the relative photosynthetic contribution of flag leaf and panicles for the heat-tolerant genotype (TEJ-2) compared to the sensitive genotype (TEJ-1). CONCLUSION The novelty of this method is the non-destructive and accurate determination of panicle area and photosynthetic parameters, enabling researchers to monitor temporal changes in panicle physiology during the reproductive development. The method is useful for panicle-level measurements under diverse environmental stresses and is sensitive enough to evaluate genotypic variation for panicle physiology and architecture in cereals with compact inflorescences.
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Affiliation(s)
- Jaspinder Singh Dharni
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Balpreet Kaur Dhatt
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Puneet Paul
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Tian Gao
- Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Tala Awada
- School of Natural Resources, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Harel Bacher
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Zvi Peleg
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Paul Staswick
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA
| | - Jason Hupp
- LI-COR Inc., 4647 Superior Street, Lincoln, NE, 68505, USA
| | - Hongfeng Yu
- Department of Computer Science and Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA
| | - Harkamal Walia
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, 68583, USA.
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Zhang R, Liu G, Xu H, Lou H, Zhai S, Chen A, Hao S, Xing J, Liu J, You M, Zhang Y, Xie C, Ma J, Liang R, Sun Q, Zhai H, Ni Z, Li B. Heat Stress Tolerance 2 confers basal heat stress tolerance in allohexaploid wheat (Triticum aestivum L.). JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:6600-6614. [PMID: 35781562 DOI: 10.1093/jxb/erac297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Heat stress substantially reduces the yield potential of wheat (Triticum aestivum L.), one of the most widely cultivated staple crops, and greatly threatens global food security in the context of global warming. However, few studies have explored the heat stress tolerance (HST)-related genetic resources in wheat. Here, we identified and fine-mapped a wheat HST locus, TaHST2, which is indispensable for HST in both the vegetative and reproductive stages of the wheat life cycle. The studied pair of near isogenic lines (NILs) exhibited diverse morphologies under heat stress, based on which we mapped TaHST2 to a 485 kb interval on chromosome arm 4DS. Under heat stress, TaHST2 confers a superior conversion rate from soluble sugars to starch in wheat grains, resulting in faster grain filling and a higher yield potential. A further exploration of genetic resources indicated that TaHST2 underwent strong artificial selection during wheat domestication, suggesting it is an essential locus for basal HST in wheat. Our findings provide deeper insights into the genetic basis of wheat HST and might be useful for global efforts to breed heat-stress-tolerant cultivars.
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Affiliation(s)
- Runqi Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Guoyu Liu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Huanwen Xu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Hongyao Lou
- Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Shanshan Zhai
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Aiyan Chen
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Shuiyuan Hao
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
- Hetao College, Bayannur, China
| | - Jiewen Xing
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jie Liu
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Mingshan You
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Yufeng Zhang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Chaojie Xie
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Jun Ma
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Rongqi Liang
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Qixin Sun
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Huijie Zhai
- School of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, China
| | - Zhongfu Ni
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
| | - Baoyun Li
- State Key Laboratory for Agrobiotechnology, Key Laboratory of Crop Heterosis and Utilization (MOE), Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, China
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15
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Gao Z, Zhou Y, He Y. Molecular epigenetic mechanisms for the memory of temperature stresses in plants. J Genet Genomics 2022; 49:991-1001. [PMID: 35870761 DOI: 10.1016/j.jgg.2022.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/13/2022] [Accepted: 07/13/2022] [Indexed: 12/29/2022]
Abstract
The sessile plants encounter various stresses; some are prolonged, whereas some others are recurrent. Temperature is crucial for plant growth and development, and plants often encounter adverse high temperature fluctuations (heat stresses) as well as prolonged cold exposure such as seasonal temperature drops in winter when grown in temperate regions. Many plants can remember past temperature stresses to get adapted to adverse local temperature changes to ensure survival and/or reproductive success. Here, we summarize chromatin-based mechanisms underlying acquired thermotolerance or thermomemory in plants and review recent progresses on molecular epigenetic understanding of 'remembering of prolonged cold in winter' or vernalization, a process critical for various over-wintering plants to acquire competence to flower in the coming spring. In addition, perspectives on future study in temperature stress memories of economically-important crops are discussed.
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Affiliation(s)
- Zhaoxu Gao
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yue Zhou
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yuehui He
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China; Peking University Institute of Advanced Agricultural Sciences, Weifang, Shandong 261325, China.
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16
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Lauterberg M, Saranga Y, Deblieck M, Klukas C, Krugman T, Perovic D, Ordon F, Graner A, Neumann K. Precision phenotyping across the life cycle to validate and decipher drought-adaptive QTLs of wild emmer wheat ( Triticum turgidum ssp. dicoccoides) introduced into elite wheat varieties. FRONTIERS IN PLANT SCIENCE 2022; 13:965287. [PMID: 36311121 PMCID: PMC9598872 DOI: 10.3389/fpls.2022.965287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Drought events or the combination of drought and heat conditions are expected to become more frequent due to global warming, and wheat yields may fall below their long-term average. One way to increase climate-resilience of modern high-yielding varieties is by their genetic improvement with beneficial alleles from crop wild relatives. In the present study, the effect of two beneficial QTLs introgressed from wild emmer wheat and incorporated in the three wheat varieties BarNir, Zahir and Uzan was studied under well-watered conditions and under drought stress using non-destructive High-throughput Phenotyping (HTP) throughout the life cycle in a single pot-experiment. Plants were daily imaged with RGB top and side view cameras and watered automatically. Further, at two time points, the quantum yield of photosystem II was measured with a top view FluorCam. The QTL carrying near isogenic lines (NILs) were compared with their corresponding parents by t-test for all non-invasively obtained traits and for the manually determined agronomic and yield parameters. Data quality of phenotypic traits (repeatability) in the controlled HTP experiment was above 85% throughout the life cycle and at maturity. Drought stress had a strong effect on growth in all wheat genotypes causing biomass reduction from 2% up to 70% at early and late points in the drought period, respectively. At maturity, the drought caused 47-55% decreases in yield-related traits grain weight, straw weight and total biomass and reduced TKW by 10%, while water use efficiency (WUE) increased under drought by 29%. The yield-enhancing effect of the introgressed QTLs under drought conditions that were previously demonstrated under field/screenhouse conditions in Israel, could be mostly confirmed in a greenhouse pot experiment using HTP. Daily precision phenotyping enabled to decipher the mode of action of the QTLs in the different genetic backgrounds throughout the entire wheat life cycle. Daily phenotyping allowed a precise determination of the timing and size of the QTLs effect (s) and further yielded information about which image-derived traits are informative at which developmental stage of wheat during the entire life cycle. Maximum height and estimated biovolume were reached about a week after heading, so experiments that only aim at exploring these traits would not need a longer observation period. To obtain information on different onset and progress of senescence, the CVa curves represented best the ongoing senescence of plants. The QTL on 7A in the BarNir background was found to improve yield under drought by increased biomass growth, a higher photosynthetic performance, a higher WUE and a "stay green effect."
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Affiliation(s)
- Madita Lauterberg
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Yehoshua Saranga
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Mathieu Deblieck
- Institute for Resistance Research and Stress Tolerance, Julius Kühn-Institute, Quedlinburg, Germany
| | - Christian Klukas
- Digitalization in Research and Development (ROM), BASF SE, Ludwigshafen am Rhein, Germany
| | - Tamar Krugman
- Institute of Evolution, University of Haifa, Haifa, Israel
| | - Dragan Perovic
- Institute for Resistance Research and Stress Tolerance, Julius Kühn-Institute, Quedlinburg, Germany
| | - Frank Ordon
- Institute for Resistance Research and Stress Tolerance, Julius Kühn-Institute, Quedlinburg, Germany
| | - Andreas Graner
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
| | - Kerstin Neumann
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany
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17
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Grewal SK, Gill RK. Insights into carbon and nitrogen metabolism and antioxidant potential during vegetative phase in quinoa (Chenopodium quinoa Willd.). PROTOPLASMA 2022; 259:1301-1319. [PMID: 35064825 DOI: 10.1007/s00709-022-01736-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
The present investigation was carried out to understand the impact of carbon and nitrogen metabolism in quinoa genotypes IC411824, IC411825, EC507747 and EC507742 during pre-anthesis stage. It was observed that activities of acid invertase, sucrose synthase (cleavage) and sucrose phosphate synthase (SPS) increased up to 75 days after sowing (DAS) and this might be responsible for providing reducing sugars for the development of vegetative parts. Enhanced activities of nitrate reductase, glutamate synthase, glutamine synthetase during vegetative growth of leaves and stem at 90 DAS assist the fixation of ammonia on glutamate molecule to synthesize amino acids at early stages. However, the glutamate dehydrogenase and nitrite reductase play a central role in the re-assimilation of amides from the amino group of asparaginase. As a result, these photosynthetic products will be responsible for providing both the energy and the C-skeletons for ammonium assimilation during amino acid biosynthesis. Leaves and stem of IC411824 and IC411825 had higher total phenol and total flavonoid content. DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity was found to be higher in leaves of IC411825 and in stem of IC411824 and IC411825 indicating their capability to act as natural antioxidants.
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Affiliation(s)
- Satvir Kaur Grewal
- Department of Biochemistry, Punjab Agricultural University, Ludhiana, 141004, India.
| | - Ranjit Kaur Gill
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, 141004, India
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18
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Xue X, Wang J, Shukla D, Cheung LS, Chen LQ. When SWEETs Turn Tweens: Updates and Perspectives. ANNUAL REVIEW OF PLANT BIOLOGY 2022; 73:379-403. [PMID: 34910586 DOI: 10.1146/annurev-arplant-070621-093907] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Sugar translocation between cells and between subcellular compartments in plants requires either plasmodesmata or a diverse array of sugar transporters. Interactions between plants and associated microorganisms also depend on sugar transporters. The sugars will eventually be exported transporter (SWEET) family is made up of conserved and essential transporters involved in many critical biological processes. The functional significance and small size of these proteins have motivated crystallographers to successfully capture several structures of SWEETs and their bacterial homologs in different conformations. These studies together with molecular dynamics simulations have provided unprecedented insights into sugar transport mechanisms in general and into substrate recognition of glucose and sucrose in particular. This review summarizes our current understanding of the SWEET family, from the atomic to the whole-plant level. We cover methods used for their characterization, theories about their evolutionary origins, biochemical properties, physiological functions, and regulation. We also include perspectives on the future work needed to translate basic research into higher crop yields.
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Affiliation(s)
- Xueyi Xue
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA;
| | - Jiang Wang
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA;
| | - Diwakar Shukla
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Lily S Cheung
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Li-Qing Chen
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA;
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Transcriptomic and Metabolomic Analyses of the Effects of Exogenous Trehalose on Heat Tolerance in Wheat. Int J Mol Sci 2022; 23:ijms23095194. [PMID: 35563585 PMCID: PMC9103215 DOI: 10.3390/ijms23095194] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 02/01/2023] Open
Abstract
Trehalose can improve the tolerance of plants to various types of environmental stress. Nonetheless, information respecting the molecular networks of wheat seedlings to exogenous trehalose under heat stress is limited. Here, two wheat varieties pretreated with exogenous trehalose were selected to explore the molecular mechanism by which trehalose improves the heat tolerance of wheat (Triticum aestivum L.). The results indicated that exogenous trehalose improved the physiological state of wheat seedlings under heat stress. Through RNA sequencing and metabolomics analysis, the genes and metabolites specifically expressed in trehalose pretreatment were identified. After heat stress, there were 18,352 differentially expressed genes (DEGs) in the control and trehalose-treated (H_vs_TreH) groups of Yangmai 18 and 9045 DEGs in Yannong 19. Functional annotation and enrichment analyses showed that the DEGs in the two wheat varieties were mainly involved in carbohydrate metabolism and biosynthesis of secondary metabolites. Through a liquid chromatography–mass spectrometry platform, 183 differential metabolites in H_vs_TreH groups of Yangmai 18 and 77 differential metabolites in Yannong 19 were identified. Compared with the control group, many protective metabolites, such as amino acids, purines, phenylpropanoids and flavonoids, showed significant differences under heat stress. The results indicated that exogenous trehalose protected the wheat biomembrane system, enhanced carbohydrate metabolism and signal transduction, strengthened the activity of the tricarboxylic acid cycle (TCA cycle), regulated purine metabolism, gene expression and metabolite accumulation in the phenylpropanoid biosynthesis and flavonoid biosynthesis pathways, thus improving the heat tolerance of wheat.
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The Memory of Rice Response to Spaceflight Stress: From the Perspective of Metabolomics and Proteomics. Int J Mol Sci 2022; 23:ijms23063390. [PMID: 35328810 PMCID: PMC8954569 DOI: 10.3390/ijms23063390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/11/2022] [Accepted: 03/18/2022] [Indexed: 01/16/2023] Open
Abstract
The stress response of plants to spaceflight has been confirmed in contemporary plants, and plants retained the memory of spaceflight through methylation reaction. However, how the progeny plants adapt to this cross-generational stress memory was rarely reported. Here, we used the ShiJian-10 retractable satellite carrying Dongnong416 rice seeds for a 12.5-day on-orbit flight and planted the F2 generation after returning to the ground. We evaluated the agronomic traits of the F2 generation plants and found that the F2 generation plants had no significant differences in plant height and number of tillers. Next, the redox state in F2 plants was evaluated, and it was found that the spaceflight broke the redox state of the F2 generation rice. In order to further illustrate the stress response caused by this redox state imbalance, we conducted proteomics and metabolomics analysis. Proteomics results showed that the redox process in F2 rice interacts with signal transduction, stress response, and other pathways, causing genome instability in the plant, leading to transcription, post-transcriptional modification, protein synthesis, protein modification, and degradation processes were suppressed. The metabolomics results showed that the metabolism of the F2 generation plants was reshaped. These metabolic pathways mainly included amino acid metabolism, sugar metabolism, cofactor and vitamin metabolism, purine metabolism, phenylpropane biosynthesis, and flavonoid metabolism. These metabolic pathways constituted a new metabolic network. This study confirmed that spaceflight affected the metabolic changes in offspring rice, which would help better understand the adaptation mechanism of plants to the space environment.
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21
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Du X, Gao Z, Sun X, Bian D, Ren J, Yan P, Cui Y. Increasing temperature during early spring increases winter wheat grain yield by advancing phenology and mitigating leaf senescence. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:152557. [PMID: 34952052 DOI: 10.1016/j.scitotenv.2021.152557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/07/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
High temperature usually reduces wheat yield, especially at critical growth stages, such as anthesis and grain filling. However, effects of increasing temperature during wintering period on winter wheat growth and development are rarely reported. Hence, this three-year field experiment evaluated how artificial warming during early spring (wintering period) affects winter wheat. The warming treatment (WT) advanced the wheat reviving, jointing, anthesis, and maturity stages, but the average temperature in each growing stage reduced, thus extending the duration of tillering, spike differentiation, and grain filling. Concurrently, the leaf area index and biomass accumulation were obviously increased. Additionally, WT showed a lower leaf senescence rate compared with that of control (CK). Also, the photosynthesis rate and SPAD of WT were increased relative to CK. WT increased superoxide dismutase and peroxidase activities, and reduced malondialdehyde content in flag leaf during the grain filling stage, suggesting WT during early spring could delay leaf senescence after anthesis, which contributed to a high filling rate and long filling duration. Correspondingly, the final spike number, kernel number, and kernel weight of WT were significantly increased compared with CK. In the three seasons, grain yield was increased by 18.2%-37.5% in WT compared with CK. Results of this study provided a new viewpoint that increasing temperature could shorten the wintering period but extend the effective growth phase, and increase grain yield in winter wheat.
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Affiliation(s)
- Xiong Du
- College of Agronomy, Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, Baoding, Hebei 071001, China.
| | - Zhen Gao
- College of Agronomy, Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, Baoding, Hebei 071001, China.
| | - Xiaonuo Sun
- Baoding Meteorological Bureau of Hebei Province, Baoding, Hebei 071001, China
| | - Dahong Bian
- College of Agronomy, Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, Baoding, Hebei 071001, China
| | - Jianhong Ren
- College of Agronomy, Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, Baoding, Hebei 071001, China
| | - Peng Yan
- College of Agronomy, Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, Baoding, Hebei 071001, China
| | - Yanhong Cui
- College of Agronomy, Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei Province, Baoding, Hebei 071001, China.
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22
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Kumar S, Thakur M, Mitra R, Basu S, Anand A. Sugar metabolism during pre- and post-fertilization events in plants under high temperature stress. PLANT CELL REPORTS 2022; 41:655-673. [PMID: 34628530 DOI: 10.1007/s00299-021-02795-1] [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: 02/28/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
High temperature challenges global crop production by limiting the growth and development of the reproductive structures and seed. It impairs the developmental stages of male and female gametogenesis, pollination, fertilization, endosperm formation and embryo development. Among these, the male reproductive processes are highly prone to abnormalities under high temperature at various stages of development. The disruption of source-sink balance is the main constraint for satisfactory growth of the reproductive structures which is disturbed at the level of sucrose import and utilization within the tissue. Seed development after fertilization is affected by modulation in the activity of enzymes involved in starch metabolism. In addition, the alteration in the seed-filling rate and its duration affects the seed weight and quality. The present review critically discusses the role of sugar metabolism in influencing the various stages of gamete and seed development under high temperature stress. It also highlights the interaction of the sugars with hormones that mediate the transport of sugars to sink tissues. The role of transcription factors for the regulation of sugar availability under high temperature has also been discussed. Further, the omics-based systematic investigation has been suggested to understand the synergistic or antagonistic interactions between sugars, hormones and reactive oxygen species at various points of sucrose flow from source to sink under high temperature stress.
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Affiliation(s)
- Sunil Kumar
- Division of Seed Science and Technology, ICAR- Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Meenakshi Thakur
- College of Horticulture and Forestry, Dr. Y.S. Parmar University of Horticulture and Forestry, Neri, Hamirpur, 177 001, Himachal Pradesh, India
| | - Raktim Mitra
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Sudipta Basu
- Division of Seed Science and Technology, ICAR- Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Anjali Anand
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110 012, India.
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23
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Lu Y, Zhao P, Zhang A, Wang J, Ha M. Genome-Wide Analysis of HSP70s in Hexaploid Wheat: Tandem Duplication, Heat Response, and Regulation. Cells 2022; 11:cells11050818. [PMID: 35269442 PMCID: PMC8909476 DOI: 10.3390/cells11050818] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 01/27/2023] Open
Abstract
HSP70s play crucial roles in plant growth and development, as well as in stress response. Knowledge of the distribution and heat response of HSP70s is important to understand heat adaptation and facilitate thermotolerance improvement in wheat. In this study, we comprehensively analyzed the distribution of HSP70s in hexaploid wheat (TaHSP70s) and its relatives, and we found an obvious expansion of TaHSP70s in the D genome of hexaploid wheat. Meanwhile, a large portion of tandem duplication events occurred in hexaploid wheat. Among the 84 identified TaHSP70s, more than 64% were present as homeologs. The expression profiles of TaHSP70s in triads tended to be expressed more in non-stressful and heat stress conditions. Intriguingly, many TaHSP70s were especially heat responsive. Tandem duplicated TaHSP70s also participated in heat response and growth development. Further HSE analysis revealed divergent distribution of HSEs in the promoter regions of TaHSP70 homeologs, which suggested a distinct heat regulatory mechanism. Our results indicated that the heat response of TaHSP70s may experience a different regulation, and this regulation, together with the expression of tandem duplicated TaHSP70s, may help hexaploid wheat to adapt to heat conditions.
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Affiliation(s)
- Yunze Lu
- Soil Pollution and Ecological Restoration Center, School of Landscape and Ecological Engineering, Hebei University of Engineering, Handan 056038, China; (A.Z.); (M.H.)
- Correspondence:
| | - Peng Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (P.Z.); (J.W.)
| | - Aihua Zhang
- Soil Pollution and Ecological Restoration Center, School of Landscape and Ecological Engineering, Hebei University of Engineering, Handan 056038, China; (A.Z.); (M.H.)
| | - Junzhe Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (P.Z.); (J.W.)
| | - Mingran Ha
- Soil Pollution and Ecological Restoration Center, School of Landscape and Ecological Engineering, Hebei University of Engineering, Handan 056038, China; (A.Z.); (M.H.)
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Abstract
On the world stage, the increase in temperatures due to global warming is already a reality that has become one of the main challenges faced by the scientific community. Since agriculture is highly dependent on climatic conditions, it may suffer a great impact in the short term if no measures are taken to adapt and mitigate the agricultural system. Plant responses to abiotic stresses have been the subject of research by numerous groups worldwide. Initially, these studies were concentrated on model plants, and, later, they expanded their studies in several economically important crops such as rice, corn, soybeans, coffee, and others. However, agronomic evaluations for the launching of cultivars and the classical genetic improvement process focus, above all, on productivity, historically leaving factors such as tolerance to abiotic stresses in the background. Considering the importance of the impact that abiotic stresses can have on agriculture in the short term, new strategies are currently being sought and adopted in breeding programs to understand the physiological, biochemical, and molecular responses to environmental disturbances in plants of agronomic interest, thus ensuring the world food security. Moreover, integration of these approaches is bringing new insights on breeding. We will discuss how water deficit, high temperatures, and salinity exert effects on plants.
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25
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Zhao K, Tao Y, Liu M, Yang D, Zhu M, Ding J, Zhu X, Guo W, Zhou G, Li C. Does temporary heat stress or low temperature stress similarly affect yield, starch, and protein of winter wheat grain during grain filling? J Cereal Sci 2022. [DOI: 10.1016/j.jcs.2021.103408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Kumar J, Gupta DS, Kesari R, Verma R, Murugesan S, Basu PS, Soren KR, Gupta S, Singh NP. Comprehensive RNAseq analysis for identification of genes expressed under heat stress in lentil. PHYSIOLOGIA PLANTARUM 2021; 173:1785-1807. [PMID: 33829491 DOI: 10.1111/ppl.13419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 04/06/2021] [Indexed: 06/12/2023]
Abstract
Lentils are highly sensitive to abrupt increases in temperature during the mid to late reproductive stages, leading to severe biomass and seed yield reduction. Therefore, we carried out an RNAseq analysis between IG4258 (heat tolerant) and IG3973 (heat sensitive) lentil genotypes at the reproductive stage under both normal and heat stress conditions in the field. It resulted in 209,549 assembled transcripts and among these 161,809 transcripts had coding regions, of which 94,437 transcripts were annotated. The differential gene expression analysis showed upregulation of 678 transcripts and downregulation of 680 transcripts between the tolerant and sensitive genotypes at the early reproductive stage. While 76 transcripts were upregulated and 47 transcripts were downregulated at the late reproductive stage under heat stress conditions. The validation of 12 up-or downregulated transcripts through RT-PCR corresponded well with the expression analysis data of RNAseq, with a correlation of R2 = 0.89. Among these transcripts, the DN364_c1_g1_i9 and DN2218_c0_g1_i5 transcripts encoded enzymes involved in the tryptophan pathway, indicating that tryptophan biosynthesis plays a role under heat stress in lentil. Moreover, KEGG pathways enrichment analysis identified transcripts associated with genes encoding proteins/regulating factors related to different metabolic pathways including signal transduction, fatty acid biosynthesis, rRNA processing, ribosome biogenesis, gibberellin (GA) biosynthesis, and riboflavin biosynthesis. This analysis also identified 6852 genic-SSRs leading to the development of 4968 SSR primers that are potential genomic resources for molecular mapping of heat-tolerant genes in lentil.
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Affiliation(s)
- Jitendra Kumar
- Division of Crop Improvement, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | - Debjyoti Sen Gupta
- Division of Crop Improvement, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | - Ravi Kesari
- Department of Plant Breeding and Genetics, Bhola Paswan Shastri Agricultural College, Purnea, India
| | - Renu Verma
- Division of Basic Sciences, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | | | - Partha Sarathi Basu
- Division of Basic Sciences, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | - Khela Ram Soren
- Division of Biotechnology, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | - Sanjeev Gupta
- All India Co-ordinated Research Project on MULLaRP, ICAR-Indian Institute of Pulses Research, Kanpur, India
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27
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Girousse C, Inchboard L, Deswarte JC, Chenu K. How does post-flowering heat impact grain growth and its determining processes in wheat? JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:6596-6610. [PMID: 34125876 DOI: 10.1093/jxb/erab282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 06/11/2021] [Indexed: 05/23/2023]
Abstract
Wheat grain yield is anticipated to suffer from the increased temperatures expected under climate change. In particular, the effects of post-anthesis temperatures on grain growth and development must be better understood in order to improve crop models. Grain growth and development involve several processes, and we hypothesized that some of the most important processes, namely grain dry biomass and water accumulation, grain volume expansion, and endosperm cell proliferation, will have different thermal sensitivity. To assess this, we established temperature-response curves of these processes for steady post-anthesis temperatures between 15 °C and 36 °C. From anthesis to maturity, grain dry mass, water mass, volume, and endosperm cell number were monitored, whilst considering grain temperature. Different sensitivities to heat of these various processes were revealed. The rate of grain dry biomass accumulation increased linearly up to 25 °C, while the reciprocal of its duration increased linearly up to at least 32 °C. In contrast, the growth rates of traits contributing to grain expansion, such as increase in grain volume and cell numbers, had higher optimum temperatures, while the reciprocal of their durations were significantly lower. These temperature-response curves can contribute to improve current crop models, and allow targeting of specific mechanisms for genetic and genomic studies.
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Affiliation(s)
- Christine Girousse
- INRAe, UCA, UMR 1095 GDEC, 5 Chemin de Beaulieu, F-63000 Clermont-Ferrand, France
| | - Lauren Inchboard
- INRAe, UCA, UMR 1095 GDEC, 5 Chemin de Beaulieu, F-63000 Clermont-Ferrand, France
| | - Jean-Charles Deswarte
- Arvalis Institut du Végétal, Route de Chateaufort, ZA des graviers, F-91190 Villiers-le-Bâcle, France
| | - Karine Chenu
- The University of Queensland, Queensland Alliance for Agriculture and Food Innovation (QAAFI), 13 Holberton street, Toowoomba, QLD 4350, Australia
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28
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Iqbal N, Fatma M, Gautam H, Umar S, Sofo A, D’ippolito I, Khan NA. The Crosstalk of Melatonin and Hydrogen Sulfide Determines Photosynthetic Performance by Regulation of Carbohydrate Metabolism in Wheat under Heat Stress. PLANTS 2021; 10:plants10091778. [PMID: 34579310 PMCID: PMC8465529 DOI: 10.3390/plants10091778] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 01/03/2023]
Abstract
Photosynthesis is a pivotal process that determines the synthesis of carbohydrates required for sustaining growth under normal or stress situation. Stress exposure reduces the photosynthetic potential owing to the excess synthesis of reactive oxygen species that disturb the proper functioning of photosynthetic apparatus. This decreased photosynthesis is associated with disturbances in carbohydrate metabolism resulting in reduced growth under stress. We evaluated the importance of melatonin in reducing heat stress-induced severity in wheat (Triticum aestivum L.) plants. The plants were subjected to 25 °C (optimum temperature) or 40 °C (heat stress) for 15 days at 6 h time duration and then developed the plants for 30 days. Heat stress led to oxidative stress with increased production of thiobarbituric acid reactive substances (TBARS) and hydrogen peroxide (H2O2) content and reduced accrual of total soluble sugars, starch and carbohydrate metabolism enzymes which were reflected in reduced photosynthesis. Application of melatonin not only reduced oxidative stress through lowering TBARS and H2O2 content, augmenting the activity of antioxidative enzymes but also increased the photosynthesis in plant and carbohydrate metabolism that was needed to provide energy and carbon skeleton to the developing plant under stress. However, the increase in these parameters with melatonin was mediated via hydrogen sulfide (H2S), as the inhibition of H2S by hypotaurine (HT; H2S scavenger) reversed the ameliorative effect of melatonin. This suggests a crosstalk of melatonin and H2S in protecting heat stress-induced photosynthetic inhibition via regulation of carbohydrate metabolism.
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Affiliation(s)
- Noushina Iqbal
- Department of Botany, Jamia Hamdard, New Delhi 110062, India; (N.I.); (S.U.)
| | - Mehar Fatma
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202002, India; (M.F.); (H.G.)
| | - Harsha Gautam
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202002, India; (M.F.); (H.G.)
| | - Shahid Umar
- Department of Botany, Jamia Hamdard, New Delhi 110062, India; (N.I.); (S.U.)
| | - Adriano Sofo
- Department of European and Mediterranean Cultures: Architecture, Environment, Cultural Heritage (DiCEM), University of Basilicata, 75100 Matera, Italy;
- Correspondence: (A.S.); (N.A.K.)
| | - Ilaria D’ippolito
- Department of European and Mediterranean Cultures: Architecture, Environment, Cultural Heritage (DiCEM), University of Basilicata, 75100 Matera, Italy;
| | - Nafees A. Khan
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202002, India; (M.F.); (H.G.)
- Correspondence: (A.S.); (N.A.K.)
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29
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Marcos-Barbero EL, Pérez P, Martínez-Carrasco R, Arellano JB, Morcuende R. Screening for Higher Grain Yield and Biomass among Sixty Bread Wheat Genotypes Grown under Elevated CO 2 and High-Temperature Conditions. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10081596. [PMID: 34451641 PMCID: PMC8401911 DOI: 10.3390/plants10081596] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 06/01/2023]
Abstract
Global warming will inevitably affect crop development and productivity, increasing uncertainty regarding food production. The exploitation of genotypic variability can be a promising approach for selecting improved crop varieties that can counteract the adverse effects of future climate change. We investigated the natural variation in yield performance under combined elevated CO2 and high-temperature conditions in a set of 60 bread wheat genotypes (59 of the 8TH HTWSN CIMMYT collection and Gazul). Plant height, biomass production, yield components and phenological traits were assessed. Large variations in the selected traits were observed across genotypes. The CIMMYT genotypes showed higher biomass and grain yield when compared to Gazul, indicating that the former performed better than the latter under the studied environmental conditions. Principal component and hierarchical clustering analyses revealed that the 60 wheat genotypes employed different strategies to achieve final grain yield, highlighting that the genotypes that can preferentially increase grain and ear numbers per plant will display better yield responses under combined elevated levels of CO2 and temperature. This study demonstrates the success of the breeding programs under warmer temperatures and the plants' capacity to respond to the concurrence of certain environmental factors, opening new opportunities for the selection of widely adapted climate-resilient wheat genotypes.
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30
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Ferguson JN, Tidy AC, Murchie EH, Wilson ZA. The potential of resilient carbon dynamics for stabilizing crop reproductive development and productivity during heat stress. PLANT, CELL & ENVIRONMENT 2021; 44:2066-2089. [PMID: 33538010 DOI: 10.1111/pce.14015] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 05/20/2023]
Abstract
Impaired carbon metabolism and reproductive development constrain crop productivity during heat stress. Reproductive development is energy intensive, and its requirement for respiratory substrates rises as associated metabolism increases with temperature. Understanding how these processes are integrated and the extent to which they contribute to the maintenance of yield during and following periods of elevated temperatures is important for developing climate-resilient crops. Recent studies are beginning to demonstrate links between processes underlying carbon dynamics and reproduction during heat stress, consequently a summation of research that has been reported thus far and an evaluation of purported associations are needed to guide and stimulate future research. To this end, we review recent studies relating to source-sink dynamics, non-foliar photosynthesis and net carbon gain as pivotal in understanding how to improve reproductive development and crop productivity during heat stress. Rapid and precise phenotyping during narrow phenological windows will be important for understanding mechanisms underlying these processes, thus we discuss the development of relevant high-throughput phenotyping approaches that will allow for more informed decision-making regarding future crop improvement.
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Affiliation(s)
- John N Ferguson
- Division of Plant & Crop Science, University of Nottingham, Leicestershire, UK
- Future Food Beacon of Excellence, School of Biosciences, University of Nottingham, Leicestershire, UK
- Department of Plant Sciences, University of Cambridge, Cambridge, UK
| | - Alison C Tidy
- Division of Plant & Crop Science, University of Nottingham, Leicestershire, UK
| | - Erik H Murchie
- Division of Plant & Crop Science, University of Nottingham, Leicestershire, UK
| | - Zoe A Wilson
- Division of Plant & Crop Science, University of Nottingham, Leicestershire, UK
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31
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Matsunaga S, Yamasaki Y, Toda Y, Mega R, Akashi K, Tsujimoto H. Stage-Specific Characterization of Physiological Response to Heat Stress in the Wheat Cultivar Norin 61. Int J Mol Sci 2021; 22:6942. [PMID: 34203321 PMCID: PMC8269178 DOI: 10.3390/ijms22136942] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/18/2021] [Accepted: 06/24/2021] [Indexed: 12/16/2022] Open
Abstract
Bread wheat (Triticum aestivum) is less adaptable to high temperatures than other major cereals. Previous studies of the effects of high temperature on wheat focused on the reproductive stage. There are few reports on yield after high temperatures at other growth stages. Understanding growth-stage-specific responses to heat stress will contribute to the development of tolerant lines suited to high temperatures at various stages. We exposed wheat cultivar "Norin 61" to high temperature at three growth stages: seedling-tillering (GS1), tillering-flowering (GS2), and flowering-maturity (GS3). We compared each condition based on agronomical traits, seed maturity, and photosynthesis results. Heat at GS2 reduced plant height and number of grains, and heat at GS3 reduced the grain formation period and grain weight. However, heat at GS1 reduced senescence and prolonged grain formation, increasing grain weight without reducing yield. These data provide fundamental insights into the biochemical and molecular adaptations of bread wheat to high-temperature stresses and have implications for the development of wheat lines that can respond to high temperatures at various times of the year.
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Affiliation(s)
- Sachiko Matsunaga
- United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan; (S.M.); (K.A.)
| | - Yuji Yamasaki
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan;
| | - Yusuke Toda
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan;
| | - Ryosuke Mega
- Graduate School of Science & Technology for Innovation, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8515, Japan;
| | - Kinya Akashi
- United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan; (S.M.); (K.A.)
| | - Hisashi Tsujimoto
- United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan; (S.M.); (K.A.)
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan;
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Aluko OO, Li C, Wang Q, Liu H. Sucrose Utilization for Improved Crop Yields: A Review Article. Int J Mol Sci 2021; 22:4704. [PMID: 33946791 PMCID: PMC8124652 DOI: 10.3390/ijms22094704] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/14/2021] [Accepted: 04/17/2021] [Indexed: 12/13/2022] Open
Abstract
Photosynthetic carbon converted to sucrose is vital for plant growth. Sucrose acts as a signaling molecule and a primary energy source that coordinates the source and sink development. Alteration in source-sink balance halts the physiological and developmental processes of plants, since plant growth is mostly triggered when the primary assimilates in the source leaf balance with the metabolic needs of the heterotrophic sinks. To measure up with the sink organ's metabolic needs, the improvement of photosynthetic carbon to synthesis sucrose, its remobilization, and utilization at the sink level becomes imperative. However, environmental cues that influence sucrose balance within these plant organs, limiting positive yield prospects, have also been a rising issue over the past few decades. Thus, this review discusses strategies to improve photosynthetic carbon assimilation, the pathways actively involved in the transport of sucrose from source to sink organs, and their utilization at the sink organ. We further emphasize the impact of various environmental cues on sucrose transport and utilization, and the strategic yield improvement approaches under such conditions.
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Affiliation(s)
- Oluwaseun Olayemi Aluko
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chuanzong Li
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qian Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
| | - Haobao Liu
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China; (O.O.A.); (C.L.)
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Saddhe AA, Manuka R, Penna S. Plant sugars: Homeostasis and transport under abiotic stress in plants. PHYSIOLOGIA PLANTARUM 2021; 171:739-755. [PMID: 33215734 DOI: 10.1111/ppl.13283] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/10/2020] [Accepted: 11/16/2020] [Indexed: 05/21/2023]
Abstract
The sessile nature of plants' life is endowed with a highly evolved defense system to adapt and survive under environmental extremes. To combat such stresses, plants have developed complex and well-coordinated molecular and metabolic networks encompassing genes, metabolites, and acclimation responses. These modulate growth, photosynthesis, osmotic maintenance, and carbohydrate homeostasis. Under a given stress condition, sugars act as key players in stress perception, signaling, and are a regulatory hub for stress-mediated gene expression ensuring responses of osmotic adjustment, scavenging of reactive oxygen species, and maintaining the cellular energy status through carbon partitioning. Several sugar transporters are known to regulate carbohydrate partitioning and key signal transduction steps involved in the perception of biotic and abiotic stresses. Sugar transporters such as SUGARS WILL EVENTUALLY BE EXPORTED TRANSPORTER (SWEETs), SUCROSE TRANSPORTERS (SUTs), and MONOSACCHARIDE TRANSPORTERS (MSTs) are involved in sugar loading and unloading as well as long-distance transport (source to sink) besides orchestrating oxidative and osmotic stress tolerance. It is thus necessary to understand the structure-function relationship of these sugar transporters to fine-tune the abiotic stress-modulated responses. Advances in genomics have unraveled many sugars signaling components playing a key role in cross-talk in abiotic stress pathways. An integrated omics approach may aid in the identification and characterization of sugar transporters that could become targets for developing stress tolerance plants to mitigate climate change effects and improve crop yield. In this review, we have presented an up-to-date analysis of the sugar homeostasis under abiotic stresses as well as describe the structure and functions of sugar transporters under abiotic stresses.
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Affiliation(s)
- Ankush A Saddhe
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani - K. K. Birla Goa Campus, Zuarinagar Goa, India
| | - Rakesh Manuka
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Suprasanna Penna
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Mumbai, India
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Ye J, Gao Z, Wu X, Lu Z, Li C, Wang X, Chen L, Cui G, Yu M, Yan G, Liu H, Zhang H, Wang Z, Shi X, Li Y. Impact of increased temperature on spring wheat yield in northern China. Food Energy Secur 2021. [DOI: 10.1002/fes3.283] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Jun Ye
- College of Agronomy, Hebei Agricultural University State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei ProvinceBaoding China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Zhen Gao
- College of Agronomy, Hebei Agricultural University State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei ProvinceBaoding China
| | - Xiaohua Wu
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Zhanyuan Lu
- College of Agronomy, Hebei Agricultural University State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei ProvinceBaoding China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Cundong Li
- College of Agronomy, Hebei Agricultural University State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei ProvinceBaoding China
| | - Xiaobing Wang
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Liyu Chen
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Guohui Cui
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Meiling Yu
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Guijun Yan
- UWA School of Agriculture and Environment and The UWA Institute of Agriculture The University of Western Australia Perth WA Australia
| | - Hui Liu
- UWA School of Agriculture and Environment and The UWA Institute of Agriculture The University of Western Australia Perth WA Australia
| | - Haibin Zhang
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
| | - Zhanxian Wang
- Ordos Academy of Agriculture and Animal Husbandry Sciences Ordos China
| | - Xuefen Shi
- Ordos Academy of Agriculture and Animal Husbandry Sciences Ordos China
| | - Yuanqing Li
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences Inner Mongolia Key Laboratory of Degradation Farmland Ecological Restoration and Pollution Control/Inner Mongolia Conservation Tillage Engineering Technology Research CenterHohhot China
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Genome-wide association study and gene network analyses reveal potential candidate genes for high night temperature tolerance in rice. Sci Rep 2021; 11:6747. [PMID: 33762605 PMCID: PMC7991035 DOI: 10.1038/s41598-021-85921-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 03/08/2021] [Indexed: 12/13/2022] Open
Abstract
High night temperatures (HNT) are shown to significantly reduce rice (Oryza sativa L.) yield and quality. A better understanding of the genetic architecture of HNT tolerance will help rice breeders to develop varieties adapted to future warmer climates. In this study, a diverse indica rice panel displayed a wide range of phenotypic variability in yield and quality traits under control night (24 °C) and higher night (29 °C) temperatures. Genome-wide association analysis revealed 38 genetic loci associated across treatments (18 for control and 20 for HNT). Nineteen loci were detected with the relative changes in the traits between control and HNT. Positive phenotypic correlations and co-located genetic loci with previously cloned grain size genes revealed common genetic regulation between control and HNT, particularly grain size. Network-based predictive models prioritized 20 causal genes at the genetic loci based on known gene/s expression under HNT in rice. Our study provides important insights for future candidate gene validation and molecular marker development to enhance HNT tolerance in rice. Integrated physiological, genomic, and gene network-informed approaches indicate that the candidate genes for stay-green trait may be relevant to minimizing HNT-induced yield and quality losses during grain filling in rice by optimizing source-sink relationships.
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Mostafa M, Ahmed FK, Alghuthaymi M, Abd-Elsalam KA. Inorganic smart nanoparticles: a new tool to deliver CRISPR systems into plant cells. CRISPR AND RNAI SYSTEMS 2021:661-686. [DOI: 10.1016/b978-0-12-821910-2.00036-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Frimpong F, Windt CW, van Dusschoten D, Naz AA, Frei M, Fiorani F. A Wild Allele of Pyrroline-5-Carboxylate Synthase1 Leads to Proline Accumulation in Spikes and Leaves of Barley Contributing to Improved Performance Under Reduced Water Availability. FRONTIERS IN PLANT SCIENCE 2021; 12:633448. [PMID: 33719307 PMCID: PMC7947243 DOI: 10.3389/fpls.2021.633448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/25/2021] [Indexed: 05/05/2023]
Abstract
Water stress (WS) during spike development strongly affects final grain yield and grain quality in cereals. Proline, an osmoprotectant amino-acid, may contribute to alleviating the effects of cell and tissue dehydration. We studied five spring barley genotypes contrasting in their drought response, including two introgression lines, S42IL-143 and S42IL-141, harboring a Pyrroline-5-carboxylate synthase1- P5cs1 allele originating from the wild barley accession ISR42-8. We tested the hypothesis that barley genotypes harboring a wild allele at P5cs1 locus are comparatively more drought-tolerant at the reproductive stage by inducing proline accumulation in their immature spikes. At the booting stage, we subjected plants to well-watered and WS treatments until physiological maturity. Several morpho-physiological traits had significant genotype by treatment interaction and reduction under WS. Varying levels of genotypic proline accumulation and differences in WS tolerance were observed. Spike proline accumulation was higher than leaf proline accumulation for all genotypes under WS. Also, introgression lines carrying a wild allele at P5cs1 locus had a markedly higher spike and leaf proline content compared with the other genotypes. These introgression lines showed milder drought symptoms compared with elite genotypes, remained photosynthetically active under WS, and maintained their intrinsic water use efficiency. These combined responses contributed to the achievement of higher final seed productivity. Magnetic resonance imaging (MRI) of whole spikes at the soft dough stage showed an increase in seed abortion among the elite genotypes compared with the introgression lines 15 days after WS treatment. Our results suggest that proline accumulation at the reproductive stage contributes to the maintenance of grain formation under water shortage.
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Affiliation(s)
- Felix Frimpong
- Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, Germany
- CSIR-Crops Research Institute, Kumasi, Ghana
| | - Carel W. Windt
- Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Dagmar van Dusschoten
- Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Ali A. Naz
- Department of Plant Breeding, Institute of Crop Science and Resource Conservation, University of Bonn, Bonn, Germany
| | - Michael Frei
- Institute of Agronomy and Plant Breeding, Justus-Liebig-Universität Gießen, Gießen, Germany
| | - Fabio Fiorani
- Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, Germany
- *Correspondence: Fabio Fiorani,
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38
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Itam M, Mega R, Tadano S, Abdelrahman M, Matsunaga S, Yamasaki Y, Akashi K, Tsujimoto H. Metabolic and physiological responses to progressive drought stress in bread wheat. Sci Rep 2020; 10:17189. [PMID: 33057205 PMCID: PMC7560863 DOI: 10.1038/s41598-020-74303-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 09/22/2020] [Indexed: 11/13/2022] Open
Abstract
Wheat (Tritium aestivum) is vulnerable to future climate change because it is predominantly grown under rain-fed conditions in drought-prone areas. Thus, in-depth understanding of drought effect on wheat metabolism is essential for developing drought-tolerant wheat varieties. Here, we exposed wheat 'Norin 61' plants to progressive drought stress [0 (before drought), 2, 4, 6, 8, and 10 days after withholding water] during the flowering stage to investigate physiological and metabolomic responses. Transcriptional analyses of key abscisic acid-responsive genes indicated that abscisic acid signalling played a major role in the adaptation of wheat to water deficit. Carbon isotope composition had a higher value than the control while canopy temperature (CT) increased under drought stress. The CT depression was tightly correlated with soil water potential (SWP). Additionally, SWP at - 517 kPa was identified as the critical point for increasing CT and inducing reactive oxygen species. Metabolome analysis identified four potential drought-responsive biomarkers, the enhancement of nitrogen recycling through purine and pyrimidine metabolism, drought-induced senescence based on 1-aminocyclopropane-1-carboxylic acid and Asn accumulation, and an anti-senescence response through serotonin accumulation under severe drought stress. Our findings provide in-depth insight into molecular, physiological and metabolite changes involved in drought response which are useful for wheat breeding programs to develop drought-tolerant wheat varieties.
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Affiliation(s)
- Michael Itam
- United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8553, Japan
| | - Ryosuke Mega
- Arid Land Research Center, Tottori University, Tottori, 6800001, Japan.
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8515, Japan.
| | - Shota Tadano
- United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8553, Japan
| | - Mostafa Abdelrahman
- Arid Land Research Center, Tottori University, Tottori, 6800001, Japan
- Botany Department, Faculty of Science, Aswan University, Aswan, 81528, Egypt
| | - Sachiko Matsunaga
- United Graduate School of Agricultural Sciences, Tottori University, Tottori, 680-8553, Japan
| | - Yuji Yamasaki
- Arid Land Research Center, Tottori University, Tottori, 6800001, Japan
| | - Kinya Akashi
- Faculty of Agriculture, Tottori University, Tottori, 680-8553, Japan
| | - Hisashi Tsujimoto
- Arid Land Research Center, Tottori University, Tottori, 6800001, Japan
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Abdelrahman M, Nakabayashi R, Mori T, Ikeuchi T, Mori M, Murakami K, Ozaki Y, Matsumoto M, Uragami A, Tsujimoto H, Tran LSP, Kanno A. Comparative Metabolome and Transcriptome Analyses of Susceptible Asparagus officinalis and Resistant Wild A. kiusianus Reveal Insights into Stem Blight Disease Resistance. PLANT & CELL PHYSIOLOGY 2020; 61:1464-1476. [PMID: 32374863 DOI: 10.1093/pcp/pcaa054] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 04/18/2020] [Indexed: 05/23/2023]
Abstract
Phomopsis asparagi is one of the most serious fungal pathogens, which causes stem blight disease in Asparagus officinalis (AO), adversely affecting its production worldwide. Recently, the development of novel asparagus varieties using wild Asparagus genetic resources with natural P. asparagi resistance has become a priority in Japan due to the lack of resistant commercial AO cultivars. In this study, comparative metabolome and transcriptome analyses of susceptible AO and resistant wild Asparagus kiusianus (AK) 24 and 48 h postinoculated (AOI_24 hpi, AOI_48 hpi, AKI_24 hpi and AKI_48 hpi, respectively) with P. asparagi were conducted to gain insights into metabolic and expression changes associated with AK species. Following infection, the resistant wild AK showed rapid metabolic changes with increased levels of flavonoids and steroidal saponins and decreased asparagusic acid glucose ester content, compared with the susceptible AO plants. Transcriptome data revealed a total of 21 differentially expressed genes (DEGs) as the core gene set that displayed upregulation in the resistant AK versus susceptible AO after infection with P. asparagi. Kyoto Encyclopedia of Genes and Genomes pathway analysis of these DEGs identified 11 significantly enriched pathways, including flavonoid biosynthesis and primary metabolite metabolism, in addition to plant signaling and defense-related pathways. In addition, comparative single-nucleotide polymorphism and Indel distributions in susceptible AO and resistant AK plants were evaluated using the latest AO reference genome Aspof.V1. The data generated in this study are important resources for advancing Asparagus breeding programs and for investigations of genetic linkage mapping, phylogenetic diversity and plant defense-related genes.
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Affiliation(s)
- Mostafa Abdelrahman
- Botany Department, Faculty of Sciences, Aswan University, Aswan 81528, Egypt
- Arid Land Research Center, Tottori University, Tottori, 680-0001 Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, 980-8577 Japan
| | - Ryo Nakabayashi
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi, Yokohama, 230-0045 Japan
| | - Tetsuya Mori
- Metabolomics Research Group, RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi, Yokohama, 230-0045 Japan
| | - Takao Ikeuchi
- Kagawa Prefectural Agricultural Experiment Station, 1534-1 Ayagawa, Ayauta, Kagawa, 761-2306 Japan
| | - Mitsutaka Mori
- Kagawa Prefectural Agricultural Experiment Station, 1534-1 Ayagawa, Ayauta, Kagawa, 761-2306 Japan
| | - Kyoko Murakami
- Kagawa Prefectural Agricultural Experiment Station, 1534-1 Ayagawa, Ayauta, Kagawa, 761-2306 Japan
| | - Yukio Ozaki
- Faculty of Agriculture, Kyushu University, Fukuoka, 819-0395 Japan
| | - Masaru Matsumoto
- Institute of Tropical Agriculture, Kyushu University, Fukuoka, 819-0395 Japan
| | - Atsuko Uragami
- Institute of Vegetable and Floriculture Science, NARO, Tsukuba, Ibaraki, 305-8519 Japan
| | - Hisashi Tsujimoto
- Arid Land Research Center, Tottori University, Tottori, 680-0001 Japan
| | - Lam-Son Phan Tran
- Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, Vietnam
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama, 230-0045 Japan
| | - Akira Kanno
- Graduate School of Life Sciences, Tohoku University, Sendai, 980-8577 Japan
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Yin H, Zhou H, Wang W, Tran LSP, Zhang B. Transcriptome Analysis Reveals Potential Roles of Abscisic Acid and Polyphenols in Adaptation of Onobrychis viciifolia to Extreme Environmental Conditions in the Qinghai-Tibetan Plateau. Biomolecules 2020; 10:biom10060967. [PMID: 32604957 PMCID: PMC7356597 DOI: 10.3390/biom10060967] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 06/22/2020] [Accepted: 06/23/2020] [Indexed: 11/16/2022] Open
Abstract
A detailed understanding of the molecular mechanisms of plant stress resistance in the face of ever-changing environmental stimuli will be helpful for promoting the growth and production of crop and forage plants. Investigations of plant responses to various single abiotic or biotic factors, or combined stresses, have been extensively reported. However, the molecular mechanisms of plants in responses to environmental stresses under natural conditions are not clearly understood. In this study, we carried out a transcriptome analysis using RNA-sequencing to decipher the underlying molecular mechanisms of Onobrychis viciifolia responding and adapting to the extreme natural environment in the Qinghai-Tibetan Plateau (QTP). The transcriptome data of plant samples collected from two different altitudes revealed a total of 8212 differentially expressed genes (DEGs), including 5387 up-regulated and 2825 down-regulated genes. Detailed analysis of the identified DEGs uncovered that up-regulation of genes potentially leading to changes in hormone homeostasis and signaling, particularly abscisic acid-related ones, and enhanced biosynthesis of polyphenols play vital roles in the adaptive processes of O. viciifolia. Interestingly, several DEGs encoding uridine diphosphate glycosyltransferases, which putatively regulate phytohormone homeostasis to resist environmental stresses, were also discovered. Furthermore, numerous DEGs encoding transcriptional factors, such as members of the myeloblastosis (MYB), homeodomain-leucine zipper (HD-ZIP), WRKY, and nam-ataf1,2-cuc2 (NAC) families, might be involved in the adaptive responses of O. viciifolia to the extreme natural environmental conditions. The DEGs identified in this study represent candidate targets for improving environmental stress resistance of O. viciifolia grown in higher altitudes of the QTP, and can provide deep insights into the molecular mechanisms underlying the responses of this plant species to the extreme natural environmental conditions of the QTP.
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Affiliation(s)
- Hengxia Yin
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China;
| | - Huakun Zhou
- The Key Laboratory of Restoration Ecology in Cold Region of Qinghai Province, Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810008, China;
| | - Wenying Wang
- School of Life Science, Qinghai Normal University, Xining 810008, China;
| | - Lam-Son Phan Tran
- Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang 550000, Vietnam
- Correspondence: (L.-S.P.T.); (B.Z.)
| | - Benyin Zhang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China;
- College of Eco-Environmental Engineering, Qinghai University, Xining 810016, China
- Correspondence: (L.-S.P.T.); (B.Z.)
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41
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Abdelrahman M, Ishii T, El-Sayed M, Tran LSP. Heat Sensing and Lipid Reprograming as a Signaling Switch for Heat Stress Responses in Wheat. ACTA ACUST UNITED AC 2020; 61:1399-1407. [DOI: 10.1093/pcp/pcaa072] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/11/2020] [Indexed: 12/20/2022]
Abstract
Abstract
Temperature is an essential physical factor that affects the plant life cycle. Almost all plant species have evolved a robust signal transduction system that enables them to sense changes in the surrounding temperature, relay this message and accordingly adjust their metabolism and cellular functions to avoid heat stress-related damage. Wheat (Triticum aestivum), being a cool-season crop, is very sensitive to heat stress. Any increase in the ambient temperature, especially at the reproductive and grain-filling stages, can cause a drastic loss in wheat yield. Heat stress causes lipid peroxidation due to oxidative stress, resulting in the damage of thylakoid membranes and the disruption of their function, which ultimately decreases photosynthesis and crop yield. The cell membrane/plasma membrane plays prominent roles as an interface system that perceives and translates the changes in environmental signals into intracellular responses. Thus, membrane lipid composition is a critical factor in heat stress tolerance or susceptibility in wheat. In this review, we elucidate the possible involvement of calcium influx as an early heat stress-responsive mechanism in wheat plants. In addition, the physiological implications underlying the changes in lipid metabolism under high-temperature stress in wheat and other plant species will be discussed. In-depth knowledge about wheat lipid reprograming can help develop heat-tolerant wheat varieties and provide approaches to solve the impact of global climate change.
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Affiliation(s)
- Mostafa Abdelrahman
- Department of Botany, Faculty of Sciences, Aswan University, Aswan 81528, Egypt
- Arid Land Research Center, Tottori University, Tottori, 680-0001 Japan
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama, 230-0045 Japan
| | - Takayoshi Ishii
- Arid Land Research Center, Tottori University, Tottori, 680-0001 Japan
| | - Magdi El-Sayed
- Department of Botany, Faculty of Sciences, Aswan University, Aswan 81528, Egypt
| | - Lam-Son Phan Tran
- Stress Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama, 230-0045 Japan
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
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42
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Paul MJ, Watson A, Griffiths CA. Linking fundamental science to crop improvement through understanding source and sink traits and their integration for yield enhancement. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:2270-2280. [PMID: 31665486 PMCID: PMC7134924 DOI: 10.1093/jxb/erz480] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/11/2019] [Indexed: 05/19/2023]
Abstract
Understanding processes in sources and sinks that contribute to crop yields has taken years of painstaking research. For crop yield improvement, processes need to be understood as standalone mechanisms in addition to how these mechanisms perform at the crop level; currently there is often a chasm between the two. Fundamental mechanisms need to be considered in the context of crop ideotypes and the agricultural environment which is often more water limited than carbon limited. Different approaches for improvement should be considered, namely is there genetic variation? Or if not, could genetic modification, genome editing, or alternative approaches be utilized? Currently, there are few examples where genetic modification has improved intrinsic yield in the field for commercial application in a major crop. Genome editing, particularly of negative yield regulators as a first step, is providing new opportunities. Here we highlight key mechanisms in source and sink, arguing that for large yield increases integration of key processes is likely to produce the biggest successes within the framework of crop ideotypes with optimized phenology. We highlight a plethora of recent papers that show breakthroughs in fundamental science and the promise of the trehalose 6-phosphate signalling pathway, which regulates carbohydrate allocation which is key for many crop traits.
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Affiliation(s)
- Matthew J Paul
- Plant Science, Rothamsted Research, Harpenden, Hertfordshire, UK
- Correspondence:
| | - Amy Watson
- Plant Science, Rothamsted Research, Harpenden, Hertfordshire, UK
| | - Cara A Griffiths
- Plant Science, Rothamsted Research, Harpenden, Hertfordshire, UK
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43
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Pareek A, Dhankher OP, Foyer CH. Mitigating the impact of climate change on plant productivity and ecosystem sustainability. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:451-456. [PMID: 31909813 PMCID: PMC6945998 DOI: 10.1093/jxb/erz518] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Affiliation(s)
- Ashwani Pareek
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA, USA
| | - Christine H Foyer
- School of Biosciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, UK
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Kamal NM, Gorafi YSA, Abdelrahman M, Abdellatef E, Tsujimoto H. Stay-Green Trait: A Prospective Approach for Yield Potential, and Drought and Heat Stress Adaptation in Globally Important Cereals. Int J Mol Sci 2019; 20:E5837. [PMID: 31757070 PMCID: PMC6928793 DOI: 10.3390/ijms20235837] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/12/2019] [Accepted: 11/13/2019] [Indexed: 11/16/2022] Open
Abstract
The yield losses in cereal crops because of abiotic stress and the expected huge losses from climate change indicate our urgent need for useful traits to achieve food security. The stay-green (SG) is a secondary trait that enables crop plants to maintain their green leaves and photosynthesis capacity for a longer time after anthesis, especially under drought and heat stress conditions. Thus, SG plants have longer grain-filling period and subsequently higher yield than non-SG. SG trait was recognized as a superior characteristic for commercially bred cereal selection to overcome the current yield stagnation in alliance with yield adaptability and stability. Breeding for functional SG has contributed in improving crop yields, particularly when it is combined with other useful traits. Thus, elucidating the molecular and physiological mechanisms associated with SG trait is maybe the key to defeating the stagnation in productivity associated with adaptation to environmental stress. This review discusses the recent advances in SG as a crucial trait for genetic improvement of the five major cereal crops, sorghum, wheat, rice, maize, and barley with particular emphasis on the physiological consequences of SG trait. Finally, we provided perspectives on future directions for SG research that addresses present and future global challenges.
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Affiliation(s)
- Nasrein Mohamed Kamal
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan; (Y.S.A.G.); (M.A.)
- Agricultural Research Corporation, Wad-Medani P.O. Box 126, Sudan
| | - Yasir Serag Alnor Gorafi
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan; (Y.S.A.G.); (M.A.)
- Agricultural Research Corporation, Wad-Medani P.O. Box 126, Sudan
| | - Mostafa Abdelrahman
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan; (Y.S.A.G.); (M.A.)
- Botany Department, Faculty of Science, Aswan University, Aswan 81528, Egypt
| | - Eltayb Abdellatef
- Commission for Biotechnology and Genetic Engineering, National Center for Research, Khartoum P.O. Box 6096, Sudan;
| | - Hisashi Tsujimoto
- Arid Land Research Center, Tottori University, 1390 Hamasaka, Tottori 680-0001, Japan; (Y.S.A.G.); (M.A.)
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