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Réthoré E, Pelletier S, Balliau T, Zivy M, Avelange-Macherel MH, Macherel D. Multi-scale analysis of heat stress acclimation in Arabidopsis seedlings highlights the primordial contribution of energy-transducing organelles. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:300-331. [PMID: 38613336 DOI: 10.1111/tpj.16763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 03/08/2024] [Accepted: 03/14/2024] [Indexed: 04/14/2024]
Abstract
Much progress has been made in understanding the molecular mechanisms of plant adaptation to heat stress. However, the great diversity of models and stress conditions, and the fact that analyses are often limited to a small number of approaches, complicate the picture. We took advantage of a liquid culture system in which Arabidopsis seedlings are arrested in their development, thus avoiding interference with development and drought stress responses, to investigate through an integrative approach seedlings' global response to heat stress and acclimation. Seedlings perfectly tolerate a noxious heat shock (43°C) when subjected to a heat priming treatment at a lower temperature (38°C) the day before, displaying a thermotolerance comparable to that previously observed for Arabidopsis. A major effect of the pre-treatment was to partially protect energy metabolism under heat shock and favor its subsequent rapid recovery, which was correlated with the survival of seedlings. Rapid recovery of actin cytoskeleton and mitochondrial dynamics were another landmark of heat shock tolerance. The omics confirmed the role of the ubiquitous heat shock response actors but also revealed specific or overlapping responses to priming, heat shock, and their combination. Since only a few components or functions of chloroplast and mitochondria were highlighted in these analyses, the preservation and rapid recovery of their bioenergetic roles upon acute heat stress do not require extensive remodeling of the organelles. Protection of these organelles is rather integrated into the overall heat shock response, thus allowing them to provide the energy required to elaborate other cellular responses toward acclimation.
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Affiliation(s)
- Elise Réthoré
- Univ Angers, Institut Agro Rennes-Angers, INRAE, IRHS-UMR 1345, F-49000, Angers, France
| | - Sandra Pelletier
- Univ Angers, Institut Agro Rennes-Angers, INRAE, IRHS-UMR 1345, F-49000, Angers, France
| | - Thierry Balliau
- INRAE, PAPPSO, UMR/UMR Génétique Végétale, Gif sur Yvette, France
| | - Michel Zivy
- INRAE, PAPPSO, UMR/UMR Génétique Végétale, Gif sur Yvette, France
| | | | - David Macherel
- Univ Angers, Institut Agro Rennes-Angers, INRAE, IRHS-UMR 1345, F-49000, Angers, France
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Groli EL, Frascaroli E, Maccaferri M, Ammar K, Tuberosa R. Dissecting the effect of heat stress on durum wheat under field conditions. FRONTIERS IN PLANT SCIENCE 2024; 15:1393349. [PMID: 39006958 PMCID: PMC11239346 DOI: 10.3389/fpls.2024.1393349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/30/2024] [Indexed: 07/16/2024]
Abstract
Introduction Heat stress negatively affects wheat production in several ways, mainly by reducing growth rate, photosynthetic capacity and reducing spike fertility. Modeling stress response means analyzing simultaneous relationships among traits affecting the whole plant response and determinants of grain yield. The aim of this study was to dissect the diverse impacts of heat stress on key yield traits and to identify the most promising sources of alleles for heat tolerance. Methods We evaluated a diverse durum wheat panel of 183 cultivars and breeding lines from worldwide, for their response to long-term heat stress under field conditions (HS) with respect to non stress conditions (NS), considering phenological traits, grain yield (GY) and its components as a function of the timing of heat stress and climatic covariates. We investigated the relationships among plant and environmental variables by means of a structural equation model (SEM) and Genetic SEM (GSEM). Results Over two years of experiments at CENEB, CIMMYT, the effects of HS were particularly pronounced for the normalized difference vegetation index, NDVI (-51.3%), kernel weight per spike, KWS (-40.5%), grain filling period, GFP (-38.7%), and GY (-56.6%). Average temperatures around anthesis were negatively correlated with GY, thousand kernel weight TKW and test weight TWT, but also with spike density, a trait determined before heading/anthesis. Under HS, the correlation between the three major determinants of GY, i.e., fertile spike density, spike fertility and kernel size, were of noticeable magnitude. NDVI measured at medium milk-soft dough stage under HS was correlated with both spike fertility and grain weight while under NS it was less predictive of grain weight but still highly correlated with spike fertility. GSEM modeling suggested that the causal model of performance under HS directly involves genetic effects on GY, NDVI, KWS and HD. Discussion We identified consistently suitable sources of genetic resistance to heat stress to be used in different durum wheat pre-breeding programs. Among those, Desert Durums and CIMMYT'80 germplasm showed the highest degree of adaptation and capacity to yield under high temperatures and can be considered as a valuable source of alleles for adaptation to breed new HS resilient cultivars.
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Affiliation(s)
- Eder Licieri Groli
- Department of Agricultural and Food Sciences, DISTAL, University of Bologna, Bologna, Italy
| | - Elisabetta Frascaroli
- Department of Agricultural and Food Sciences, DISTAL, University of Bologna, Bologna, Italy
| | - Marco Maccaferri
- Department of Agricultural and Food Sciences, DISTAL, University of Bologna, Bologna, Italy
| | - Karim Ammar
- International Maize and Wheat Improvement Center, CIMMYT, El Batán, Mexico
| | - Roberto Tuberosa
- Department of Agricultural and Food Sciences, DISTAL, University of Bologna, Bologna, Italy
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Jeong M, Bae J, Yoo G. Urban roadside greenery as a carbon sink: Systematic assessment considering understory shrubs and soil respiration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 927:172286. [PMID: 38588739 DOI: 10.1016/j.scitotenv.2024.172286] [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: 01/02/2024] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
Roadside greenery is an efficient strategy for maximizing ecosystem services, including carbon sequestration in urban settings. However, the quantification of carbon sequestration is not comprehensive because understory shrubs and soil respiration have not been thoroughly considered. We developed an integrated methodology that combined field measurements and greenhouse incubation to comprehensively assess carbon sequestration in roadside greenery systems. The system was defined as an 8 m long section comprising a single tree (Zelkova serrata), 79 shrubs (Euonymus japonicus), and soil. Annual carbon uptake by a tree was estimated using an allometric equation derived from an official government report. For shrubs, carbon uptake was measured in the field by monitoring CO2 concentration change in the chamber enclosing the leaves and stems. Annual carbon uptake by shrubs was estimated by using the regression equation among carbon uptake, air temperature, and photosynthetically active radiation. We also estimated shrub root respiration by combining net primary production (NPP) from the greenhouse incubation and measured pruning effect in the field. This enabled us to differentiate heterotrophic respiration from the total soil respiration. The overall methodology accurately assessed net ecosystem production (NEP) from the roadside greenery system, which is 0.528 kg C m-2 yr-1. If this figure is extended to all roads in the target city, it can offset daily carbon emitted from the total registered passenger vehicles in the target city. Considering that shrubs sequester an amount equivalent to 29.3 % of the carbon sequestered by tree species, the current greenhouse gas inventory should include shrubs as an important carbon sink. As we also revealed that roadside soil has high carbon vulnerability, proper soil management is needed to enhance NEP. Our systematic approach evaluating the carbon balance within the roadside greenery system can be applied to other cities, contributing to enhance global understanding of urban carbon cycle.
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Affiliation(s)
- Minseop Jeong
- Department of Applied Environmental Science, Kyung Hee University, Yongin, Republic of Korea
| | - Jeehwan Bae
- Department of Applied Environmental Science, Kyung Hee University, Yongin, Republic of Korea
| | - Gayoung Yoo
- Department of Environmental Science and Environmental Engineering, Kyung Hee University, 1732, Deogyeong-daero, Giheung-gu, Yongin-si, Gyeonggi-do 446701, Republic of Korea.
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Zhu X, Li W, Zhang N, Jin H, Duan H, Chen Z, Chen S, Wang Q, Tang J, Zhou J, Zhang Y, Si H. StMAPKK5 responds to heat stress by regulating potato growth, photosynthesis, and antioxidant defenses. FRONTIERS IN PLANT SCIENCE 2024; 15:1392425. [PMID: 38817936 PMCID: PMC11137293 DOI: 10.3389/fpls.2024.1392425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/29/2024] [Indexed: 06/01/2024]
Abstract
Backgrounds As a conserved signaling pathway, mitogen-activated protein kinase (MAPK) cascade regulates cellular signaling in response to abiotic stress. High temperature may contribute to a significant decrease in economic yield. However, research into the expression patterns of StMAPKK family genes under high temperature is limited and lacks experimental validation regarding their role in supporting potato plant growth. Methods To trigger heat stress responses, potato plants were grown at 35°C. qRT-PCR was conducted to analyze the expression pattern of StMAPKK family genes in potato plants. Plant with StMAPKK5 loss-of-function and gain-of-function were developed. Potato growth and morphological features were assessed through measures of plant height, dry weight, and fresh weight. The antioxidant ability of StMAPKK5 was indicated by antioxidant enzyme activity and H2O2 content. Cell membrane integrity and permeability were suggested by relative electrical conductivity (REC), and contents of MDA and proline. Photosynthetic capacity was next determined. Further, mRNA expression of heat stress-responsive genes and antioxidant enzyme genes was examined. Results In reaction to heat stress, the expression profiles of StMAPKK family genes were changed. The StMAPKK5 protein is located to the nucleus, cytoplasm and cytomembrane, playing a role in controlling the height and weight of potato plants under heat stress conditions. StMAPKK5 over-expression promoted photosynthesis and maintained cell membrane integrity, while inhibited transpiration and stomatal conductance under heat stress. Overexpression of StMAPKK5 triggered biochemical defenses in potato plant against heat stress, modulating the levels of H2O2, MDA and proline, as well as the antioxidant activities of CAT, SOD and POD. Overexpression of StMAPKK5 elicited genetic responses in potato plants to heat stress, affecting heat stress-responsive genes and genes encoding antioxidant enzymes. Conclusion StMAPKK5 can improve the resilience of potato plants to heat stress-induced damage, offering a promising approach for engineering potatoes with enhanced adaptability to challenging heat stress conditions.
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Affiliation(s)
- Xi Zhu
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
- National Key Laboratory for Tropical Crop Breeding, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya, China
| | - Wei Li
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Ning Zhang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Hui Jin
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Huimin Duan
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Zhuo Chen
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Shu Chen
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Qihua Wang
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Jinghua Tang
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Jiannan Zhou
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Yu Zhang
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong, China
- Key Laboratory of Hainan Province for Postharvest Physiology and Technology of Tropical Horticultural Products, Zhanjiang, Guangdong, China
| | - Huaijun Si
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
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Chaouachi L, Marín-Sanz M, Barro F, Karmous C. Genetic diversity of durum wheat (Triticum turgidum ssp. durum) to mitigate abiotic stress: Drought, heat, and their combination. PLoS One 2024; 19:e0301018. [PMID: 38574054 PMCID: PMC10994418 DOI: 10.1371/journal.pone.0301018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 03/09/2024] [Indexed: 04/06/2024] Open
Abstract
Drought and heat are the main abiotic constraints affecting durum wheat production. This study aimed to screen for tolerance to drought, heat, and combined stresses in durum wheat, at the juvenile stage under controlled conditions. Five durum wheat genotypes, including four landraces and one improved genotype, were used to test their tolerance to abiotic stress. After 15 days of growing, treatments were applied as three drought levels (100, 50, and 25% field capacity (FC)), three heat stress levels (24, 30, and 35°C), and three combined treatments (100% FC at 24°C, 50% FC at 30°C and 25% FC at 35°C). The screening was performed using a set of morpho-physiological, and biochemical traits. The results showed that the tested stresses significantly affect all measured parameters. The dry matter content (DM) decreased by 37.1% under heat stress (35°C), by 37.3% under severe drought stress (25% FC), and by 53.2% under severe combined stress (25% FC at 35°C). Correlation analyses of drought and heat stress confirmed that aerial part length, dry matter content, hydrogen peroxide content, catalase, and Glutathione peroxidase activities could be efficient screening criteria for both stresses. The principal component analysis (PCA) showed that only the landrace Aouija tolerated the three studied stresses, while Biskri and Hedhba genotypes were tolerant to drought and heat stresses and showed the same sensitivity under combined stress. Nevertheless, improved genotype Karim and the landrace Hmira were the most affected genotypes by drought, against a minimum growth for the Hmira genotype under heat stress. The results showed that combined drought and heat stresses had a more pronounced impact than simple effects. In addition, the tolerance of durum wheat to drought and heat stresses involves several adjustments of morpho-physiological and biochemical responses, which are proportional to the stress intensity.
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Affiliation(s)
- Latifa Chaouachi
- Laboratory of Genetics and Cereal Breeding (LR14 AGR01), National Institute of Agronomy of Tunisia, Carthage University, Carthage, Tunisia
| | - Miriam Marín-Sanz
- Department of Plant Breeding, Institute for Sustainable Agriculture-Spanish National Research Council (IAS-CSIC), Córdoba, Spain
| | - Francisco Barro
- Department of Plant Breeding, Institute for Sustainable Agriculture-Spanish National Research Council (IAS-CSIC), Córdoba, Spain
| | - Chahine Karmous
- Laboratory of Genetics and Cereal Breeding (LR14 AGR01), National Institute of Agronomy of Tunisia, Carthage University, Carthage, Tunisia
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Zhou R, Hyldgaard B, Abdelhakim L, Mendanha T, Driever S, Cammarano D, Rosenqvist E, Ottosen CO. Interactive Effects of Temperature, Water Regime, and [CO 2] on Wheats with Different Heat Susceptibilities. PLANTS (BASEL, SWITZERLAND) 2024; 13:830. [PMID: 38592830 PMCID: PMC10974624 DOI: 10.3390/plants13060830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/11/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024]
Abstract
Plants' response to single environmental changes can be highly distinct from the response to multiple changes. The effects of a single environmental factor on wheat growth have been well documented. However, the interactive influences of multiple factors on different wheat genotypes need further investigation. Here, treatments of three important growth factors, namely water regime, temperature, and CO2 concentration ([CO2]), were applied to compare the response of two wheat genotypes with different heat sensitivities. The temperature response curves showed that both genotypes showed more variations at elevated [CO2] (e[CO2]) than ambient [CO2] (a[CO2]) when the plants were treated under different water regimes and temperatures. This corresponded to the results of water use efficiency at the leaf level. At e[CO2], heat-tolerant 'Gladius' showed a higher net photosynthetic rate (Pn), while heat-susceptible 'Paragon' had a lower Pn at reduced water, as compared with full water availability. The temperature optimum for photosynthesis in wheat was increased when the growth temperature was high, while the leaf carbon/nitrogen was increased via a reduced water regime. Generally, water regime, temperature and [CO2] have significant interactive effects on both wheat genotypes. Two wheat genotypes showed different physiological responses to different combinations of environmental factors. Our investigation concerning the interactions of multi-environmental factors on wheat will benefit the future wheat climate-response study.
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Affiliation(s)
- Rong Zhou
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Department of Food Science, Aarhus University, DK-8200 Aarhus, Denmark; (B.H.); (L.A.); (T.M.); (C.-O.O.)
| | - Benita Hyldgaard
- Department of Food Science, Aarhus University, DK-8200 Aarhus, Denmark; (B.H.); (L.A.); (T.M.); (C.-O.O.)
| | - Lamis Abdelhakim
- Department of Food Science, Aarhus University, DK-8200 Aarhus, Denmark; (B.H.); (L.A.); (T.M.); (C.-O.O.)
| | - Thayna Mendanha
- Department of Food Science, Aarhus University, DK-8200 Aarhus, Denmark; (B.H.); (L.A.); (T.M.); (C.-O.O.)
| | - Steven Driever
- Centre for Crop Systems Analysis, Wageningen University, Bornsesteeg 48, 6708 PE Wageningen, The Netherlands;
| | - Davide Cammarano
- Department of Agroecology, iClimate, CBIO, Aarhus University, 8830 Tjele, Denmark;
| | - Eva Rosenqvist
- Department of Plant and Environmental Sciences, University of Copenhagen, DK-2630 Taastrup, Denmark;
| | - Carl-Otto Ottosen
- Department of Food Science, Aarhus University, DK-8200 Aarhus, Denmark; (B.H.); (L.A.); (T.M.); (C.-O.O.)
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Coast O, Scafaro AP, Bramley H, Taylor NL, Atkin OK. Photosynthesis in newly developed leaves of heat-tolerant wheat acclimates to long-term nocturnal warming. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:962-978. [PMID: 37935881 PMCID: PMC10837020 DOI: 10.1093/jxb/erad437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023]
Abstract
We examined photosynthetic traits of pre-existing and newly developed flag leaves of four wheat genotypes grown in controlled-environment experiments. In newly developed leaves, acclimation of the maximum rate of net CO2 assimilation (An) to warm nights (i.e. increased An) was associated with increased capacity of Rubisco carboxylation and photosynthetic electron transport, with Rubisco activation state probably contributing to increased Rubisco activity. Metabolite profiling linked acclimation of An to greater accumulation of monosaccharides and saturated fatty acids in leaves; these changes suggest roles for osmotic adjustment of leaf turgor pressure and maintenance of cell membrane integrity. By contrast, where An decreased under warm nights, the decline was related to lower stomatal conductance and rates of photosynthetic electron transport. Decreases in An occurred despite higher basal PSII thermal stability in all genotypes exposed to warm nights: Tcrit of 45-46.5 °C in non-acclimated versus 43.8-45 °C in acclimated leaves. Pre-existing leaves showed no change in An-temperature response curves, except for an elite heat-tolerant genotype. These findings illustrate the impact of night-time warming on the ability of wheat plants to photosynthesize during the day, thereby contributing to explain the impact of global warming on crop productivity.
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Affiliation(s)
- Onoriode Coast
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
- Natural Resources Institute, University of Greenwich, Central Avenue, Chatham Maritime, Kent ME4 4TB, UK
- School of Environmental and Rural Sciences, Faculty of Science, Agriculture, Business, and Law, University of New England, Armidale, NSW 2351, Australia
| | - Andrew P Scafaro
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
- Division of Plant Science, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
| | - Helen Bramley
- School of Life and Environmental Sciences, Plant Breeding Institute, Sydney Institute of Agriculture, The University of Sydney, Narrabri, NSW 2390, Australia
| | - Nicolas L Taylor
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Sciences and Institute of Agriculture, The University of Western Australia, Crawley, WA 6009, Australia
| | - Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
- Division of Plant Science, Research School of Biology, The Australian National University, Canberra, ACT 2601, Australia
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Ma Z, Hu L, Jiang W. Understanding AP2/ERF Transcription Factor Responses and Tolerance to Various Abiotic Stresses in Plants: A Comprehensive Review. Int J Mol Sci 2024; 25:893. [PMID: 38255967 PMCID: PMC10815832 DOI: 10.3390/ijms25020893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Abiotic stress is an adverse environmental factor that severely affects plant growth and development, and plants have developed complex regulatory mechanisms to adapt to these unfavourable conditions through long-term evolution. In recent years, many transcription factor families of genes have been identified to regulate the ability of plants to respond to abiotic stresses. Among them, the AP2/ERF (APETALA2/ethylene responsive factor) family is a large class of plant-specific proteins that regulate plant response to abiotic stresses and can also play a role in regulating plant growth and development. This paper reviews the structural features and classification of AP2/ERF transcription factors that are involved in transcriptional regulation, reciprocal proteins, downstream genes, and hormone-dependent signalling and hormone-independent signalling pathways in response to abiotic stress. The AP2/ERF transcription factors can synergise with hormone signalling to form cross-regulatory networks in response to and tolerance of abiotic stresses. Many of the AP2/ERF transcription factors activate the expression of abiotic stress-responsive genes that are dependent or independent of abscisic acid and ethylene in response to abscisic acid and ethylene. In addition, the AP2/ERF transcription factors are involved in gibberellin, auxin, brassinosteroid, and cytokinin-mediated abiotic stress responses. The study of AP2/ERF transcription factors and interacting proteins, as well as the identification of their downstream target genes, can provide us with a more comprehensive understanding of the mechanism of plant action in response to abiotic stress, which can improve plants' ability to tolerate abiotic stress and provide a more theoretical basis for increasing plant yield under abiotic stress.
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Affiliation(s)
- Ziming Ma
- Jilin Provincial Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China;
- Max-Planck-Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam-Golm, Germany
- Plant Genetics, TUM School of Life Sciences, Technical University of Munich (TUM), Emil Ramann Str. 4, 85354 Freising, Germany
| | - Lanjuan Hu
- Jilin Provincial Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China;
| | - Wenzhu Jiang
- Jilin Provincial Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China;
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McAusland L, Acevedo‐Siaca LG, Pinto RS, Pinto F, Molero G, Garatuza‐Payan J, Reynolds MP, Murchie EH, Yepez EA. Night-time warming in the field reduces nocturnal stomatal conductance and grain yield but does not alter daytime physiological responses. THE NEW PHYTOLOGIST 2023; 239:1622-1636. [PMID: 37430457 PMCID: PMC10952344 DOI: 10.1111/nph.19075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/11/2023] [Indexed: 07/12/2023]
Abstract
Global nocturnal temperatures are rising more rapidly than daytime temperatures and have a large effect on crop productivity. In particular, stomatal conductance at night (gsn ) is surprisingly poorly understood and has not been investigated despite constituting a significant proportion of overall canopy water loss. Here, we present the results of 3 yr of field data using 12 spring Triticum aestivum genotypes which were grown in NW Mexico and subjected to an artificial increase in night-time temperatures of 2°C. Under nocturnal heating, grain yields decreased (1.9% per 1°C) without significant changes in daytime leaf-level physiological responses. Under warmer nights, there were significant differences in the magnitude and decrease in gsn , values of which were between 9 and 33% of daytime rates while respiration appeared to acclimate to higher temperatures. Decreases in grain yield were genotype-specific; genotypes categorised as heat tolerant demonstrated some of the greatest declines in yield in response to warmer nights. We conclude the essential components of nocturnal heat tolerance in wheat are uncoupled from resilience to daytime temperatures, raising fundamental questions for physiological breeding. Furthermore, this study discusses key physiological traits such as pollen viability, root depth and irrigation type may also play a role in genotype-specific nocturnal heat tolerance.
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Affiliation(s)
- Lorna McAusland
- Division of Plant and Crop Sciences, School of BiosciencesUniversity of NottinghamLeicestershireLE12 5RDUK
| | - Liana G. Acevedo‐Siaca
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - R. Suzuky Pinto
- Instituto Tecnológico de Sonora (ITSON)5 de Febrero 818 Sur, Col. Centro, Cd. Obregón, SonoraMéxicoCP 85000Mexico
| | - Francisco Pinto
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - Gemma Molero
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - Jaime Garatuza‐Payan
- Instituto Tecnológico de Sonora (ITSON)5 de Febrero 818 Sur, Col. Centro, Cd. Obregón, SonoraMéxicoCP 85000Mexico
| | - Matthew P. Reynolds
- International Maize and Wheat Improvement Centre (CIMMYT)Carretera México‐Veracruz Km 45, El Batán, TexcocoMéxicoCP 56237Mexico
| | - Erik H. Murchie
- Division of Plant and Crop Sciences, School of BiosciencesUniversity of NottinghamLeicestershireLE12 5RDUK
| | - Enrico A. Yepez
- Instituto Tecnológico de Sonora (ITSON)5 de Febrero 818 Sur, Col. Centro, Cd. Obregón, SonoraMéxicoCP 85000Mexico
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Kumar H, Chugh V, Kumar M, Gupta V, Prasad S, Kumar S, Singh CM, Kumar R, Singh BK, Panwar G, Kumar M. Investigating the impact of terminal heat stress on contrasting wheat cultivars: a comprehensive analysis of phenological, physiological, and biochemical traits. FRONTIERS IN PLANT SCIENCE 2023; 14:1189005. [PMID: 37711289 PMCID: PMC10499387 DOI: 10.3389/fpls.2023.1189005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 07/25/2023] [Indexed: 09/16/2023]
Abstract
Terminal heat stress has become one of the major threats due to global climate change which is significantly affecting the production and productivity of wheat crop. Therefore, it is necessary to identify key traits and genotypes to breed heat-tolerant wheat. The present study was undertaken with the objective of comparing the effects of heat stress (HSE) and extended heat stress (EHSE) on phenological-physio-biochemical traits of contrasting heat-tolerant and heat-susceptible genotypes during the reproductive phase. Phenological traits exhibited significant reduction under EHSE compared to HSE. Heat-tolerant genotypes maintained balanced phenological-physio-biochemical traits, while heat-sensitive genotypes showed significant reductions under both stress regimes. Among phenological traits, DM (R2 = 0.52) and BY (R2 = 0.44) have shown a positive effect on seed yield, indicating that biomass and crop duration contributed to the yield advantage under stress. During the grain filling stage, both the normalized difference vegetation index (NDVI) and chlorophyll (Chl) exhibited consistently positive impacts on grain yield under both HSE and EHSE conditions. This could be attributed to the enhanced photosynthesis resulting from delayed senescence and improved assimilate remobilization under terminal heat stress. The biochemical activity of superoxide dismutase (SOD), peroxidase (POX), and ascorbate peroxidase (APX) was induced in tolerant genotypes under HSE. The correlation of canopy temperature with phenological-physio-biochemical traits remained static under HSE and EHSE, suggesting CT as the best selection parameter for heat tolerance. The traits showing a positive association with yield and that are less affected under stress could be used for selecting tolerant genotypes under stress environments. These tolerant genotypes can be used to develop mapping populations to decipher the genes conferring tolerance as well as to study the molecular basis of tolerance.
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Affiliation(s)
- Hitesh Kumar
- Department of Genetics and Plant Breeding, College of Agriculture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
| | - Vishal Chugh
- Department of Basic and Social Sciences, College of Horticulture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
| | - Manoj Kumar
- Department of Genetics and Plant Breeding, College of Agriculture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
| | - Vikas Gupta
- Division of Crop Improvement, ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana, India
| | - Shambhoo Prasad
- Department of Plant Molecular Biology and Genetic Engineering, Acharya Narendra Deva University of Agriculture and Technology Kumarganj, Ayodhya, Uttar Pradesh, India
| | - Satish Kumar
- Division of Crop Improvement, ICAR-Indian Institute of Wheat and Barley Research, Karnal, Haryana, India
| | - Chandra Mohan Singh
- Department of Genetics and Plant Breeding, College of Agriculture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
| | - Rahul Kumar
- Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT, United States
| | - Bhupendra Kumar Singh
- Department of Entomology, College of Agriculture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
| | - Gurusharan Panwar
- Department of Agronomy, College of Agriculture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
| | - Mukul Kumar
- Department of Genetics and Plant Breeding, College of Agriculture, Banda University of Agriculture and Technology, Banda, Uttar Pradesh, India
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Munns R, Millar AH. Seven plant capacities to adapt to abiotic stress. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4308-4323. [PMID: 37220077 PMCID: PMC10433935 DOI: 10.1093/jxb/erad179] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 05/11/2023] [Indexed: 05/25/2023]
Abstract
Abiotic stresses such as drought and heat continue to impact crop production in a warming world. This review distinguishes seven inherent capacities that enable plants to respond to abiotic stresses and continue growing, although at a reduced rate, to achieve a productive yield. These are the capacities to selectively take up essential resources, store them and supply them to different plant parts, generate the energy required for cellular functions, conduct repairs to maintain plant tissues, communicate between plant parts, manage existing structural assets in the face of changed circumstances, and shape-shift through development to be efficient in different environments. By illustration, we show how all seven plant capacities are important for reproductive success of major crop species during drought, salinity, temperature extremes, flooding, and nutrient stress. Confusion about the term 'oxidative stress' is explained. This allows us to focus on the strategies that enhance plant adaptation by identifying key responses that can be targets for plant breeding.
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Affiliation(s)
- Rana Munns
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - A Harvey Millar
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
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12
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Ma Z, Hu L. MicroRNA: A Dynamic Player from Signalling to Abiotic Tolerance in Plants. Int J Mol Sci 2023; 24:11364. [PMID: 37511124 PMCID: PMC10379455 DOI: 10.3390/ijms241411364] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of non-coding single-stranded RNA molecules composed of approximately 20-24 nucleotides in plants. They play an important regulatory role in plant growth and development and as a signal in abiotic tolerance. Some abiotic stresses include drought, salt, cold, high temperature, heavy metals and nutritional elements. miRNAs affect gene expression by manipulating the cleavage, translational expression or DNA methylation of target messenger RNAs (mRNAs). This review describes the current progress in the field considering two aspects: (i) the way miRNAs are produced and regulated and (ii) the way miRNA/target genes are used in plant responses to various abiotic stresses. Studying the molecular mechanism of action of miRNAs' downstream target genes could optimize the genetic manipulation of crop growth and development conditions to provide a more theoretically optimized basis for improving crop production. MicroRNA is a novel signalling mechanism in interplant communication relating to abiotic tolerance.
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Affiliation(s)
- Ziming Ma
- Jilin Provincial Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China
- Plant Genetics, TUM School of Life Sciences, Technical University of Munich (TUM), Emil Ramann Str. 4, 85354 Freising, Germany
- Max-Planck-Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam-Golm, Germany
| | - Lanjuan Hu
- Jilin Provincial Engineering Laboratory of Plant Genetic Improvement, College of Plant Science, Jilin University, Changchun 130062, China
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13
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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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14
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Feng Y, Li Y, Zhao Y, Shi H. Physiological, transcriptome and co-expression network analysis of chlorophyll-deficient mutants in flue-cured tobacco. BMC PLANT BIOLOGY 2023; 23:153. [PMID: 36944910 PMCID: PMC10031990 DOI: 10.1186/s12870-023-04169-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Photosynthetic pigments in higher plants, including chlorophyll (Chl) and carotenoids, are crucial for photosynthesis and photoprotection. Chl-deficient tobacco seedlings generally have a lower photosynthesis rate and higher nitrate-nitrogen (NO3-N) content, which causes a profound influence on tobacco yield and quality. In this study, a stable albino leaf mutant (Al) and slight-green leaf mutant (SG) obtained from the common flue-cured tobacco (Nicotiana tabacum L.) cultivar 'Zhongyan 100' (ZY100) by mutagenesis with ethyl methanesulfonate (EMS) were used as materials. The differences between the Chl-deficient mutants and the wild-type (WT) were analyzed in terms of biomass, photosynthetic fluorescence parameters, and carbon- and nitrogen-related physiological parameters. RNA sequencing (RNA-seq) and weighted gene co-expression network analysis (WGCNA) were used to explore the key pathways and candidate genes regulating differentiated chlorophyll and nitrate content. RESULTS The results showed that, when compared to the WT, the Chl content and biomass of mutant plants were considerably lower while the NO3-N content was substantially elevated. The net photosynthetic rate, photosynthetic fluorescence parameters, carbohydrate, soluble protein, and carbon- and nitrogen-related enzyme activities all decreased in leaves of mutants and the development of chloroplasts was abnormal. Applying more nitrogen improved the growth and development of mutants, whereas NO3-N content distinctively increased compared with that of the WT. Through transcriptome sequencing, the downregulated genes in mutants were enriched in plant hormone signal transduction and nitrogen metabolism, which are involved in pigment biosynthesis and the carbon fixation pathway. In addition, two hub genes and seven transcription factors identified from the blue module through WGCNA were likely to be key candidate factors involved in chlorophyll synthesis and nitrate accumulation. CONCLUSION Our results demonstrated that differences in chlorophyll and nitrate content were caused by the combined effects of chloroplast development, photosynthesis, as well as related biological activity. In addition, transcriptome results provide a bioinformatics resource for further functional identification of key pathways and genes responsible for differences in chlorophyll and nitrate content in tobacco plants.
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Affiliation(s)
- Yuqing Feng
- College of Tobacco, Henan Agricultural University, Zhengzhou, 450000, Henan, P. R. China
| | - Yujing Li
- College of Tobacco, Henan Agricultural University, Zhengzhou, 450000, Henan, P. R. China
| | - Yuanyuan Zhao
- College of Tobacco, Henan Agricultural University, Zhengzhou, 450000, Henan, P. R. China
| | - Hongzhi Shi
- College of Tobacco, Henan Agricultural University, Zhengzhou, 450000, Henan, P. R. China.
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15
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Sun H, Luan G, Ma Y, Lou W, Chen R, Feng D, Zhang S, Sun J, Lu X. Engineered hypermutation adapts cyanobacterial photosynthesis to combined high light and high temperature stress. Nat Commun 2023; 14:1238. [PMID: 36871084 PMCID: PMC9985602 DOI: 10.1038/s41467-023-36964-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 02/23/2023] [Indexed: 03/06/2023] Open
Abstract
Photosynthesis can be impaired by combined high light and high temperature (HLHT) stress. Obtaining HLHT tolerant photoautotrophs is laborious and time-consuming, and in most cases the underlying molecular mechanisms remain unclear. Here, we increase the mutation rates of cyanobacterium Synechococcus elongatus PCC 7942 by three orders of magnitude through combinatory perturbations of the genetic fidelity machinery and cultivation environment. Utilizing the hypermutation system, we isolate Synechococcus mutants with improved HLHT tolerance and identify genome mutations contributing to the adaptation process. A specific mutation located in the upstream non-coding region of the gene encoding a shikimate kinase results in enhanced expression of this gene. Overexpression of the shikimate kinase encoding gene in both Synechococcus and Synechocystis leads to improved HLHT tolerance. Transcriptome analysis indicates that the mutation remodels the photosynthetic chain and metabolism network in Synechococcus. Thus, mutations identified by the hypermutation system are useful for engineering cyanobacteria with improved HLHT tolerance.
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Affiliation(s)
- Huili Sun
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
- College of Life Science, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Guodong Luan
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China.
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China.
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China.
- College of Life Science, University of Chinese Academy of Sciences, 100049, Beijing, China.
- Dalian National Laboratory for Clean Energy, 116023, Dalian, Liaoning, China.
| | - Yifan Ma
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
- College of Life Science and Technology, Central South University of Forestry and Technology, 410004, Changsha, Hunan, China
| | - Wenjing Lou
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
| | - Rongze Chen
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
- College of Life Science, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Dandan Feng
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
| | - Shanshan Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
- College of Life Science, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jiahui Sun
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China
- College of Life Science, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xuefeng Lu
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, 266101, Qingdao, Shandong, China.
- Shandong Energy Institute, No. 189 Songling Road, 266101, Qingdao, Shandong, China.
- Qingdao New Energy Shandong Laboratory, 266101, Qingdao, Shandong, China.
- College of Life Science, University of Chinese Academy of Sciences, 100049, Beijing, China.
- Dalian National Laboratory for Clean Energy, 116023, Dalian, Liaoning, China.
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, 266237, Qingdao, Shandong, China.
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16
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Mubarak A, Burgess A, Pyke K, Quick W, Murchie E. Mass screening of rice mutant populations at low CO 2 for identification of lowered photorespiration and respiration rates. FRONTIERS IN PLANT SCIENCE 2023; 14:1125770. [PMID: 36938057 PMCID: PMC10020370 DOI: 10.3389/fpls.2023.1125770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Identifying rice (Oryza sativa) germplasm with improved efficiency of primary metabolism is of utmost importance in order to increase yields. One such approach can be attained through screening genetically diverse populations under altered environmental conditions. Growth or treatment under low carbon dioxide (CO2) concentrations can be used as a means of revealing altered leaf photorespiration, respiration and other metabolic variants. METHODS We developed a pipeline for very high throughput treatment of gamma- and ethyl methanesulfonate- (EMS) induced mutant populations of IR64 rice seedlings at very low CO2 for 7 days. 1050 seedlings per batch at 5th leaf stage were exposed to 60 ppm CO2 for the first day and 30 ppm for the remaining three days. Following this, putative candidates were identified by measuring chlorophyll depletion using SPAD. Screening results showed a distinct difference between the mutants and the WTs. RESULTS AND DISCUSSION The mean chlorophyll loss in WTs ranged from 65% to 11% respectively, whereas in the mutant lines chlorophyll loss ranged from 0 to 100%, suggesting considerable phenotypic variation. Rice mutants with a reduced chlorophyll reduction (<10%) were identified as 'Chlorophyll retention mutants' (CRMs) under low CO2 stress. In total, 1909 mutant lines (14,000 seedlings) were screened for chlorophyll content under 30 ppm CO2, with 26 lines selected for detailed screening. These 26 putative candidates were self-seeded to produce an M5 generation, used to determine the genetic control of the altered response to low CO2. Gas exchange of light and CO2 response revealed that there were significant variations among photosynthetic properties in two selected rice mutants. The CO2 compensation points in the absence of photorespiration and leaf respiration rates were lower than the WTs and anatomical analyses showed that CRM 29 had improved mesophyll cell area. We propose that this approach is useful for generating new material for breeding rice with improved primary metabolism.
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Affiliation(s)
- A.N.M. Mubarak
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
- Department of Biosystems Technology, Faculty of Technology, South Eastern University of Sri Lanka, University Park, Oluvil, Sri Lanka
- International Rice Research Institute, Los Baños, Laguna, Philippines
| | - A.J. Burgess
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
| | - K. Pyke
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
| | - W.P. Quick
- International Rice Research Institute, Los Baños, Laguna, Philippines
| | - E.H. Murchie
- Division of Plant and Crop Sciences, School of Biosciences, University of Nottingham, Leicestershire, United Kingdom
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Ansley RJ, Rivera‐Monroy VH, Griffis‐Kyle K, Hoagland B, Emert A, Fagin T, Loss SR, McCarthy HR, Smith NG, Waring EF. Assessing impacts of climate change on selected foundation species and ecosystem services in the South‐Central USA. Ecosphere 2023. [DOI: 10.1002/ecs2.4412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Affiliation(s)
- R. James Ansley
- Natural Resource Ecology and Management Department Oklahoma State University Stillwater Oklahoma USA
| | - Victor H. Rivera‐Monroy
- Department of Oceanography and Coastal Sciences, College of the Coast and Environment Louisiana State University Baton Rouge Louisiana USA
| | - Kerry Griffis‐Kyle
- Department of Natural Resources Management Texas Tech University Lubbock Texas USA
| | - Bruce Hoagland
- Department of Geography and Environmental Sustainability University of Oklahoma Norman Oklahoma USA
| | - Amanda Emert
- The Institute of Environmental and Human Health Texas Tech University Lubbock Texas USA
| | - Todd Fagin
- The Center for Spatial Analysis University of Oklahoma Norman Oklahoma USA
| | - Scott R. Loss
- Natural Resource Ecology and Management Department Oklahoma State University Stillwater Oklahoma USA
| | - Heather R. McCarthy
- The Department of Microbiology and Plant Biology University of Oklahoma Norman Oklahoma USA
| | - Nicholas G. Smith
- Department of Biological Sciences Texas Tech University Lubbock Texas USA
| | - Elizabeth F. Waring
- Department of Natural Sciences Northeastern State University Tahlequah Oklahoma USA
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18
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Ru C, Hu X, Chen D, Wang W, Zhen J. Photosynthetic, antioxidant activities, and osmoregulatory responses in winter wheat differ during the stress and recovery periods under heat, drought, and combined stress. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 327:111557. [PMID: 36481364 DOI: 10.1016/j.plantsci.2022.111557] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/02/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
There will be longer and more intense periods of heat and drought stress in the future for terrestrial ecosystems. Although the responses of wheat plants to heat and drought stress alone have been extensively investigated, little is known about the extent to which their recovery can be assured after stress relief. In this study, a winter wheat pot experiment was conducted to investigate the changes in photosynthetic performance, antioxidant activity, osmoregulation, and membrane lipid peroxidation under heat stress (36 °C), drought (45-55% of soil water holding capacity), and combined stress conditions. The results showed that heat and drought stress significantly reduced the photosynthetic rate and the contents of chlorophyll and carotenoid. Superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and glutathione reductase (GR) activities were greatly activated by heat and drought stress to scavenge overproduced superoxide anion (O2-). Plants exhibited positive osmoregulation through the synthesis of soluble protein (SP), soluble sugar (SS), and proline (Pro) to improve membrane stability. Within a range of stress, combined heat and drought stress exhibited significant interactive effects in the above mentioned indicators. After stress relief, the majority of physiological processes were reversible, as indicated by the effective recovery of pigment contents, photosynthetic rate, antioxidant enzyme activities, osmoregulatory substance contents, and O2- production. Antioxidant enzyme activities tended to increase after recovering from 12 days of combined stress, whereas they were still not effective in mitigating oxidative damage. High levels of O2- and malondialdehyde (MDA) and a low relative growth rate during the recovery confirmed the irreversible damage caused by combined heat and drought stress. ROC (receiver operating characteristic) analysis indicated that GR and SS could accurately detect individual heat and drought stress that wheat plants were suffering or had suffered (AUC = 0.812-0.965), while POD and Pro had greater potential for diagnosing combined heat and drought stress (AUC = 0.871-0.958). Physiological indicators of stress tolerance were closely related to the photosynthetic rate during the stress, particularly Pro and GR. Collectively, the physiological processes of plants are reversible within a certain range of stress. POD, GR, Pro, and SS play vital roles in identifying and resisting heat, drought, and combined stress, and the recovery of these indicators contributed to improving photosynthesis and thereby increasing wheat growth. Our research contributes to the understanding of the underlying physiological mechanisms of plants in response to combined heat and drought stress and after stress relief.
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Affiliation(s)
- Chen Ru
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling 712100, China
| | - Xiaotao Hu
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling 712100, China.
| | - Dianyu Chen
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling 712100, China
| | - Wene Wang
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling 712100, China
| | - Jingbo Zhen
- Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas, Ministry of Education, Northwest A&F University, Yangling 712100, China
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Pei YY, Lei L, Fan XW, Li YZ. Effects of high air temperature, drought, and both combinations on maize: A case study. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 327:111543. [PMID: 36427558 DOI: 10.1016/j.plantsci.2022.111543] [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: 03/30/2022] [Revised: 11/13/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
High air temperature (HAT) and natural soil drought (NSD) have seriously affected crop yield and frequently take place in a HAT-NSD combination. Maize (Zea mays) is an important crop, thermophilic but not heat tolerant. In this study, HAT, NSD, and HAT-NSD effects on maize inbred line Huangzao4 -were characterized. Main findings were as follows: H2O2 and O- accumulated much more in immature young leaves than in mature old leaves under the stresses. Lateral roots were highly distributed near the upper pot mix layers under HAT and near root tips under HAT-NSD. Saccharide accumulated mainly in stressed root caps (RC) and formed a highly accumulated saccharide band at the boundary between RC and meristematic zone. Lignin deposition was in stressed roots under NSD and HAT-NSD. Chloroplasts increased in number and formed a high-density ring around leaf vascular bundles (VB) under HAT and HAT-NSD, and sparsely scattered in the peripheral area of VBs under NSD. The RC cells containing starch granules were most under NAD-HAT but least under HAT. Under NSD and HAT-NSD followed by re-watering, anther number per tassel spikelet reduced to 3. These results provide multiple clues for further distinguishing molecular mechanisms for maize to tolerate these stresses.
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Affiliation(s)
- Yan-Yan Pei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, China.
| | - Ling Lei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, China.
| | - Xian-Wei Fan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, China.
| | - You-Zhi Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/College of Life Science and Technology, Guangxi University, 100 Daxue Road, Nanning, Guangxi 530004, China.
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20
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Fine Tuning of ROS, Redox and Energy Regulatory Systems Associated with the Functions of Chloroplasts and Mitochondria in Plants under Heat Stress. Int J Mol Sci 2023; 24:ijms24021356. [PMID: 36674866 PMCID: PMC9865929 DOI: 10.3390/ijms24021356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/05/2023] [Accepted: 01/07/2023] [Indexed: 01/13/2023] Open
Abstract
Heat stress severely affects plant growth and crop production. It is therefore urgent to uncover the mechanisms underlying heat stress responses of plants and establish the strategies to enhance heat tolerance of crops. The chloroplasts and mitochondria are known to be highly sensitive to heat stress. Heat stress negatively impacts on the electron transport chains, leading to increased production of reactive oxygen species (ROS) that can cause damages on the chloroplasts and mitochondria. Disruptions of photosynthetic and respiratory metabolisms under heat stress also trigger increase in ROS and alterations in redox status in the chloroplasts and mitochondria. However, ROS and altered redox status in these organelles also activate important mechanisms that maintain functions of these organelles under heat stress, which include HSP-dependent pathways, ROS scavenging systems and retrograde signaling. To discuss heat responses associated with energy regulating organelles, we should not neglect the energy regulatory hub involving TARGET OF RAPAMYCIN (TOR) and SNF-RELATED PROTEIN KINASE 1 (SnRK1). Although roles of TOR and SnRK1 in the regulation of heat responses are still unknown, contributions of these proteins to the regulation of the functions of energy producing organelles implicate the possible involvement of this energy regulatory hub in heat acclimation of plants.
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21
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Bowerman AF, Byrt CS, Roy SJ, Whitney SM, Mortimer JC, Ankeny RA, Gilliham M, Zhang D, Millar AA, Rebetzke GJ, Pogson BJ. Potential abiotic stress targets for modern genetic manipulation. THE PLANT CELL 2023; 35:139-161. [PMID: 36377770 PMCID: PMC9806601 DOI: 10.1093/plcell/koac327] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 11/03/2022] [Indexed: 05/06/2023]
Abstract
Research into crop yield and resilience has underpinned global food security, evident in yields tripling in the past 5 decades. The challenges that global agriculture now faces are not just to feed 10+ billion people within a generation, but to do so under a harsher, more variable, and less predictable climate, and in many cases with less water, more expensive inputs, and declining soil quality. The challenges of climate change are not simply to breed for a "hotter drier climate," but to enable resilience to floods and droughts and frosts and heat waves, possibly even within a single growing season. How well we prepare for the coming decades of climate variability will depend on our ability to modify current practices, innovate with novel breeding methods, and communicate and work with farming communities to ensure viability and profitability. Here we define how future climates will impact farming systems and growing seasons, thereby identifying the traits and practices needed and including exemplars being implemented and developed. Critically, this review will also consider societal perspectives and public engagement about emerging technologies for climate resilience, with participatory approaches presented as the best approach.
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Affiliation(s)
- Andrew F Bowerman
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Caitlin S Byrt
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Stuart John Roy
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Spencer M Whitney
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Jenny C Mortimer
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Rachel A Ankeny
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Humanities, University of Adelaide, North Terrace, South Australia, Australia
| | - Matthew Gilliham
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Dabing Zhang
- ARC Training Centre for Accelerated Future Crops Development, University of Adelaide, South Australia, Australia
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, South Australia, Australia
| | - Anthony A Millar
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Greg J Rebetzke
- CSIRO Agriculture & Food, Canberra, Australian Capital Territory, Australia
| | - Barry J Pogson
- ARC Training Centre for Accelerated Future Crops Development, The Australian National University, Canberra, Australian Capital Territory, Australia
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22
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Murchie EH, Reynolds M, Slafer GA, Foulkes MJ, Acevedo-Siaca L, McAusland L, Sharwood R, Griffiths S, Flavell RB, Gwyn J, Sawkins M, Carmo-Silva E. A 'wiring diagram' for source strength traits impacting wheat yield potential. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:72-90. [PMID: 36264277 PMCID: PMC9786870 DOI: 10.1093/jxb/erac415] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 10/18/2022] [Indexed: 05/06/2023]
Abstract
Source traits are currently of great interest for the enhancement of yield potential; for example, much effort is being expended to find ways of modifying photosynthesis. However, photosynthesis is but one component of crop regulation, so sink activities and the coordination of diverse processes throughout the crop must be considered in an integrated, systems approach. A set of 'wiring diagrams' has been devised as a visual tool to integrate the interactions of component processes at different stages of wheat development. They enable the roles of chloroplast, leaf, and whole-canopy processes to be seen in the context of sink development and crop growth as a whole. In this review, we dissect source traits both anatomically (foliar and non-foliar) and temporally (pre- and post-anthesis), and consider the evidence for their regulation at local and whole-plant/crop levels. We consider how the formation of a canopy creates challenges (self-occlusion) and opportunities (dynamic photosynthesis) for components of photosynthesis. Lastly, we discuss the regulation of source activity by feedback regulation. The review is written in the framework of the wiring diagrams which, as integrated descriptors of traits underpinning grain yield, are designed to provide a potential workspace for breeders and other crop scientists that, along with high-throughput and precision phenotyping data, genetics, and bioinformatics, will help build future dynamic models of trait and gene interactions to achieve yield gains in wheat and other field crops.
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Affiliation(s)
| | - Matthew Reynolds
- International Maize and Wheat Improvement Center (CIMMYT), Km. 45, Carretera Mexico-Veracruz, El Batan, Texcoco, Mexico
| | - Gustavo A Slafer
- Department of Crop and Forest Sciences, University of Lleida–AGROTECNIO-CERCA Center, Av. R. Roure 191, 25198 Lleida, Spain
- ICREA (Catalonian Institution for Research and Advanced Studies), Barcelona, Spain
| | - M John Foulkes
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK
| | - Liana Acevedo-Siaca
- International Maize and Wheat Improvement Center (CIMMYT), Km. 45, Carretera Mexico-Veracruz, El Batan, Texcoco, Mexico
| | - Lorna McAusland
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK
| | - Robert Sharwood
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond NSW 2753, Australia
| | - Simon Griffiths
- John Innes Centre, Norwich Research Park, Colney Ln, Norwich NR4 7UH, UK
| | - Richard B Flavell
- International Wheat Yield Partnership, 1500 Research Parkway, College Station, TX 77843, USA
| | - Jeff Gwyn
- International Wheat Yield Partnership, 1500 Research Parkway, College Station, TX 77843, USA
| | - Mark Sawkins
- International Wheat Yield Partnership, 1500 Research Parkway, College Station, TX 77843, USA
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23
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Fang L, Martre P, Jin K, Du X, van der Putten PEL, Yin X, Struik PC. Neglecting acclimation of photosynthesis under drought can cause significant errors in predicting leaf photosynthesis in wheat. GLOBAL CHANGE BIOLOGY 2023; 29:505-521. [PMID: 36300859 PMCID: PMC10091787 DOI: 10.1111/gcb.16488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 09/14/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
Extreme climatic events, such as heat waves, cold snaps and drought spells, related to global climate change, have become more frequent and intense in recent years. Acclimation of plant physiological processes to changes in environmental conditions is a key component of plant adaptation to climate change. We assessed the temperature response of leaf photosynthetic parameters in wheat grown under contrasting water regimes and growth temperatures (Tgrowth ). Two independent experiments were conducted under controlled conditions. In Experiment 1, two wheat genotypes were subjected to well-watered or drought-stressed treatments; in Experiment 2, the two water regimes combined with high, medium and low Tgrowth were imposed on one genotype. Parameters of a biochemical C3 -photosynthesis model were estimated at six leaf temperatures for each factor combination. Photosynthesis acclimated more to drought than to Tgrowth . Drought affected photosynthesis by lowering its optimum temperature (Topt ) and the values at Topt of light-saturated net photosynthesis, stomatal conductance, mesophyll conductance, the maximum rate of electron transport (Jmax ) and the maximum rate of carboxylation by Rubisco (Vcmax ). Topt for Vcmax was up to 40°C under well-watered conditions but 24-34°C under drought. The decrease in photosynthesis under drought varied among Tgrowth but was similar between genotypes. The temperature response of photosynthetic quantum yield under drought was partly attributed to photorespiration but more to alternative electron transport. All these changes in biochemical parameters could not be fully explained by the changed leaf nitrogen content. Further model analysis showed that both diffusional and biochemical parameters of photosynthesis and their thermal sensitivity acclimate little to Tgrowth , but acclimate considerably to drought and the combination of drought and Tgrowth . The commonly used modelling approaches, which typically consider the response of diffusional parameters, but ignore acclimation responses of biochemical parameters to drought and Tgrowth , strongly overestimate leaf photosynthesis under variable temperature and drought.
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Affiliation(s)
- Liang Fang
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Pierre Martre
- LEPSEUniv Montpellier, INRAE, Institut Agro MontpellierMontpellierFrance
| | - Kaining Jin
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Xinmiao Du
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Peter E. L. van der Putten
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Xinyou Yin
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
| | - Paul C. Struik
- Department of Plant Sciences, Centre for Crop Systems AnalysisWageningen University and ResearchWageningenThe Netherlands
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24
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Yang N, Han MH, Teng RM, Yang YZ, Wang YH, Xiong AS, Zhuang J. Exogenous Melatonin Enhances Photosynthetic Capacity and Related Gene Expression in A Dose-Dependent Manner in the Tea Plant ( Camellia sinensis (L.) Kuntze). Int J Mol Sci 2022; 23:ijms23126694. [PMID: 35743137 PMCID: PMC9223723 DOI: 10.3390/ijms23126694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 12/10/2022] Open
Abstract
The enhancement of photosynthesis of tea leaves can increase tea yield. In order to explore the regulation mechanism of exogenous melatonin (MT) on the photosynthetic characteristics of tea plants, tea variety 'Zhongcha 108' was used as the experimental material in this study. The effects of different concentrations (0, 0.2, 0.3, 0.4 mM) of melatonin on the chlorophyll (Chl) content, stomatal opening, photosynthetic and fluorescence parameters, antioxidant enzyme activity, and related gene expression of tea plants were detected and analyzed. The results showed that under 0.2-mM MT treatment, chlorophyll (Chl) content, photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci), and transpiration rate (Tr) improved, accompanied by a decrease in stomata density and increase in stomata area. Zero point two millimolar MT increased Chl fluorescence level and superoxide dismutase (SOD) activity, and reduced hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents, indicating that MT alleviated PSII inhibition and improved photochemical efficiency. At the same time, 0.2 mM MT induced the expression of genes involved in photosynthesis and chlorophyll metabolism to varying degrees. The study demonstrated that MT can effectively enhance the photosynthetic capacity of tea plants in a dose-dependent manner. These results may promote a comprehensive understanding of the potential regulatory mechanism of exogenous MT on photosynthesis in tea plants.
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Affiliation(s)
- Ni Yang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Miao-Hua Han
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Rui-Min Teng
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Ya-Zhuo Yang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
| | - Ya-Hui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.-H.W.); (A.-S.X.)
| | - Ai-Sheng Xiong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China; (Y.-H.W.); (A.-S.X.)
| | - Jing Zhuang
- Tea Science Research Institute, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (N.Y.); (M.-H.H.); (R.-M.T.); (Y.-Z.Y.)
- Correspondence:
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25
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Cavanagh AP, South PF, Bernacchi CJ, Ort DR. Alternative pathway to photorespiration protects growth and productivity at elevated temperatures in a model crop. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:711-721. [PMID: 34786804 PMCID: PMC8989507 DOI: 10.1111/pbi.13750] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/13/2021] [Accepted: 11/12/2021] [Indexed: 05/03/2023]
Abstract
Adapting crops to warmer growing season temperatures is a major challenge in mitigating the impacts of climate change on crop production. Warming temperatures drive greater evaporative demand and can directly interfere with both reproductive and vegetative physiological processes. Most of the world's crop species have C3 photosynthetic metabolism for which increasing temperature means higher rates of photorespiration, wherein the enzyme responsible for fixing CO2 fixes O2 instead followed by an energetically costly recycling pathway that spans several cell compartments. In C3 crops like wheat, rice and soybean, photorespiration translates into large yield losses that are predicted to increase as global temperature warms. Engineering less energy-intensive alternative photorespiratory pathways into crop chloroplasts drives increases in C3 biomass production under agricultural field conditions, but the efficacy of these pathways in mitigating the impact of warmer growing temperatures has not been tested. We grew tobacco plants expressing an alternative photorespiratory pathway under current and elevated temperatures (+5 °C) in agricultural field conditions. Engineered plants exhibited higher photosynthetic quantum efficiency under heated conditions than the control plants, and produced 26% (between 16% and 37%) more total biomass than WT plants under heated conditions, compared to 11% (between 5% and 17%) under ambient conditions. That is, engineered plants sustained 19% (between 11% and 21%) less yield loss under heated conditions compared to non-engineered plants. These results support the theoretical predictions of temperature impacts on photorespiratory losses and provide insight toward the optimisation strategies required to help sustain or improve C3 crop yields in a warming climate.
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Affiliation(s)
- Amanda P. Cavanagh
- Carl R. Woese Institute for Genomic BiologyUniversity of IllinoisUrbanaILUSA
- Present address:
School of Life SciencesUniversity of EssexColchesterUK
| | - Paul F. South
- Carl R. Woese Institute for Genomic BiologyUniversity of IllinoisUrbanaILUSA
- Global Change and Photosynthesis Research UnitUnited States Department of Agriculture–Agricultural Research ServiceUrbanaILUSA
- Present address:
Department of Biological SciencesLouisiana State UniversityBaton RougeLAUSA
| | - Carl J. Bernacchi
- Carl R. Woese Institute for Genomic BiologyUniversity of IllinoisUrbanaILUSA
- Global Change and Photosynthesis Research UnitUnited States Department of Agriculture–Agricultural Research ServiceUrbanaILUSA
| | - Donald R. Ort
- Carl R. Woese Institute for Genomic BiologyUniversity of IllinoisUrbanaILUSA
- Departments of Plant Biology and Crop SciencesUniversity of IllinoisUrbanaILUSA
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26
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Yadav MR, Choudhary M, Singh J, Lal MK, Jha PK, Udawat P, Gupta NK, Rajput VD, Garg NK, Maheshwari C, Hasan M, Gupta S, Jatwa TK, Kumar R, Yadav AK, Prasad PVV. Impacts, Tolerance, Adaptation, and Mitigation of Heat Stress on Wheat under Changing Climates. Int J Mol Sci 2022; 23:ijms23052838. [PMID: 35269980 PMCID: PMC8911405 DOI: 10.3390/ijms23052838] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/21/2022] [Accepted: 02/25/2022] [Indexed: 12/14/2022] Open
Abstract
Heat stress (HS) is one of the major abiotic stresses affecting the production and quality of wheat. Rising temperatures are particularly threatening to wheat production. A detailed overview of morpho-physio-biochemical responses of wheat to HS is critical to identify various tolerance mechanisms and their use in identifying strategies to safeguard wheat production under changing climates. The development of thermotolerant wheat cultivars using conventional or molecular breeding and transgenic approaches is promising. Over the last decade, different omics approaches have revolutionized the way plant breeders and biotechnologists investigate underlying stress tolerance mechanisms and cellular homeostasis. Therefore, developing genomics, transcriptomics, proteomics, and metabolomics data sets and a deeper understanding of HS tolerance mechanisms of different wheat cultivars are needed. The most reliable method to improve plant resilience to HS must include agronomic management strategies, such as the adoption of climate-smart cultivation practices and use of osmoprotectants and cultured soil microbes. However, looking at the complex nature of HS, the adoption of a holistic approach integrating outcomes of breeding, physiological, agronomical, and biotechnological options is required. Our review aims to provide insights concerning morpho-physiological and molecular impacts, tolerance mechanisms, and adaptation strategies of HS in wheat. This review will help scientific communities in the identification, development, and promotion of thermotolerant wheat cultivars and management strategies to minimize negative impacts of HS.
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Affiliation(s)
- Malu Ram Yadav
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - Mukesh Choudhary
- School of Agriculture and Environment, The University of Western Australia, Perth 6009, Australia;
| | - Jogendra Singh
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - Milan Kumar Lal
- Division of Crop Physiology, Biochemistry and Post-Harvest Technology, Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla 171001, India;
| | - Prakash Kumar Jha
- Feed the Future Innovation Lab for Collaborative Research on Sustainable Intensification, Kansas State University, Manhattan, KS 66506, USA;
- Correspondence: ; Tel.: +1-(517)-944-4698
| | - Pushpika Udawat
- Janardan Rai Nagar Rajasthan Vidyapeeth, Udaipur 313001, India;
| | - Narendra Kumar Gupta
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, 344090 Rostov-on-Don, Russia;
| | - Nitin Kumar Garg
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - Chirag Maheshwari
- Division of Biochemistry, Indian Council of Agricultural Research, Indian Agricultural Research Institute, New Delhi 110012, India;
| | - Muzaffar Hasan
- Division of Agro Produce Processing, Central Institute of Agricultural Engineering, Bhopal 462038, India;
| | - Sunita Gupta
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - Tarun Kumar Jatwa
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - Rakesh Kumar
- Division of Agronomy, Indian Council of Agricultural Research, National Dairy Research Institute, Karnal 132001, India;
| | - Arvind Kumar Yadav
- Division of Agronomy, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Jobner, Jaipur 303329, India; (M.R.Y.); (J.S.); (N.K.G.); (N.K.G.); (S.G.); (T.K.J.); (A.K.Y.)
| | - P. V. Vara Prasad
- Feed the Future Innovation Lab for Collaborative Research on Sustainable Intensification, Kansas State University, Manhattan, KS 66506, USA;
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA
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27
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Škiljaica A, Jagić M, Vuk T, Leljak Levanić D, Bauer N, Markulin L. Evaluation of reference genes for RT-qPCR gene expression analysis in Arabidopsis thaliana exposed to elevated temperatures. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:367-379. [PMID: 34990067 DOI: 10.1111/plb.13382] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Increases in environmental temperature are directly linked to the issue of climate change and are known to significantly disrupt plant growth and development. Studies of gene expression in plants commonly include RT-qPCR but the reliability of the method depends on the use of suitable reference genes for data normalization. Despite this, no reference genes have been validated specifically for experiments in Arabidopsis thaliana employing treatments with elevated temperature. Here, ten genes were selected for expression stability analysis based on the screening of available literature and microarray data from temperature-treated A. thaliana. Expression levels of candidate reference genes were measured in 12-day-old seedlings, rosette leaves and flower buds of 5-week-old A. thaliana plants exposed to five different temperatures (22°C, 27°C, 32°C, 37°C and 42°C) and their expression stabilities were assessed using four statistical algorithms (BestKeeper, geNorm, NormFinder and comparative ΔCq method). This study provides reliable reference genes for use in A. thaliana RT-qPCR expression analyses employing elevated temperature treatments, namely OGIO and PUX7 in seedlings, UBC21 and PUX7 in leaves, TIP41 and UBC21 in buds, and TIP41 and UBC21 in all three tissues combined. Orthologues of these genes can be of potential use in less studied plants, especially agricultural species heavily affected by climate change.
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Affiliation(s)
- A Škiljaica
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - M Jagić
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - T Vuk
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - D Leljak Levanić
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - N Bauer
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - L Markulin
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
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28
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Individual and Interactive Effects of Elevated Ozone and Temperature on Plant Responses. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8030211] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
From the preindustrial era to the present day, the tropospheric ozone (O3) concentration has increased dramatically in much of the industrialized world due to anthropogenic activities. O3 is the most harmful air pollutant to plants. Global surface temperatures are expected to increase with rising O3 concentration. Plants are directly affected by temperature and O3. Elevated O3 can impair physiological processes, as well as cause the accumulation of reactive oxygen species (ROS), leading to decreased plant growth. Temperature is another important factor influencing plant development. Here, we summarize how O3 and temperature elevation can affect plant physiological and biochemical characteristics, and discuss results from studies investigating plant responses to these factors. In this review, we focused on the interactions between elevated O3 and temperature on plant responses, because neither factor acts independently. Temperature has great potential to significantly influence stomatal movement and O3 uptake. For this reason, the combined influence of both factors can yield significantly different results than those of a single factor. Plant responses to the combined effects of elevated temperature and O3 are still controversial. We attribute the substantial uncertainty of these combined effects primarily to differences in methodological approaches.
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29
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Filaček A, Živčák M, Ferroni L, Barboričová M, Gašparovič K, Yang X, Landi M, Brestič M. Pre-Acclimation to Elevated Temperature Stabilizes the Activity of Photosystem I in Wheat Plants Exposed to an Episode of Severe Heat Stress. PLANTS 2022; 11:plants11050616. [PMID: 35270085 PMCID: PMC8912596 DOI: 10.3390/plants11050616] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/14/2022] [Accepted: 02/20/2022] [Indexed: 12/01/2022]
Abstract
The importance of high temperature as an environmental factor is growing in proportion to deepening global climate change. The study aims to evaluate the effects of long-term acclimation of plants to elevated temperature on the tolerance of their photosynthetic apparatus to heat stress. Three wheat (Triticum sp. L.) genotypes differing in leaf and photosynthetic traits were analyzed: Thesee, Roter Samtiger Kolbenweizen, and ANK 32A. The pot experiment was established in natural conditions outdoors (non-acclimated variant), from which a part of the plants was placed in foil tunnel with elevated temperature for 14 days (high temperature-acclimated variant). A severe heat stress screening experiment was induced by an exposition of the plans in a growth chamber with artificial light and air temperature up to 45 °C for ~12 h before the measurements. The measurements of leaf photosynthetic CO2 assimilation, stomatal conductance, and rapid kinetics of chlorophyll a fluorescence was performed. The results confirmed that a high temperature drastically reduced the photosynthetic assimilation rate caused by the non-stomatal (biochemical) limitation of photosynthetic processes. On the other hand, the chlorophyll fluorescence indicated only a moderate level of decrease of quantum efficiency of photosystem (PS) II (Fv/Fm parameter), indicating mostly reversible heat stress effects. The heat stress led to a decrease in the number of active PS II reaction centers (RC/ABS) and overall activity o PSII (PIabs) in all genotypes, whereas the PS I (parameter ψREo) was negatively influenced by heat stress in the non-acclimated variant only. Our results showed that the genotypes differ in acclimation capacity to heat stress, and rapid noninvasive techniques may help screen the stress effects and identify more tolerant crop genotypes. The acclimation was demonstrated more at the PS I level, which may be associated with the upregulation of alternative photosynthetic electron transport pathways with clearly protective functions.
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Affiliation(s)
- Andrej Filaček
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia; (A.F.); (M.B.); (K.G.); (M.B.)
| | - Marek Živčák
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia; (A.F.); (M.B.); (K.G.); (M.B.)
- Correspondence: (M.Ž.); (L.F.); Tel.: +421-37-6414-821 (M.Ž.); +39-0532-293785 (L.F.)
| | - Lorenzo Ferroni
- Laboratory of Plant Cytophysiology, Department of Environmental and Prevention Sciences, University of Ferrara, Corso Ercole I d’Este 32, 44100 Ferrara, Italy
- Correspondence: (M.Ž.); (L.F.); Tel.: +421-37-6414-821 (M.Ž.); +39-0532-293785 (L.F.)
| | - Mária Barboričová
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia; (A.F.); (M.B.); (K.G.); (M.B.)
| | - Kristína Gašparovič
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia; (A.F.); (M.B.); (K.G.); (M.B.)
| | - Xinghong Yang
- State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Taian 271018, China;
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, 56124 Pisa, Italy;
| | - Marián Brestič
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76 Nitra, Slovakia; (A.F.); (M.B.); (K.G.); (M.B.)
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic
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Rane J, Singh AK, Kumar M, Boraiah KM, Meena KK, Pradhan A, Prasad PVV. The Adaptation and Tolerance of Major Cereals and Legumes to Important Abiotic Stresses. Int J Mol Sci 2021; 22:12970. [PMID: 34884769 PMCID: PMC8657814 DOI: 10.3390/ijms222312970] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/15/2021] [Accepted: 11/23/2021] [Indexed: 01/02/2023] Open
Abstract
Abiotic stresses, including drought, extreme temperatures, salinity, and waterlogging, are the major constraints in crop production. These abiotic stresses are likely to be amplified by climate change with varying temporal and spatial dimensions across the globe. The knowledge about the effects of abiotic stressors on major cereal and legume crops is essential for effective management in unfavorable agro-ecologies. These crops are critical components of cropping systems and the daily diets of millions across the globe. Major cereals like rice, wheat, and maize are highly vulnerable to abiotic stresses, while many grain legumes are grown in abiotic stress-prone areas. Despite extensive investigations, abiotic stress tolerance in crop plants is not fully understood. Current insights into the abiotic stress responses of plants have shown the potential to improve crop tolerance to abiotic stresses. Studies aimed at stress tolerance mechanisms have resulted in the elucidation of traits associated with tolerance in plants, in addition to the molecular control of stress-responsive genes. Some of these studies have paved the way for new opportunities to address the molecular basis of stress responses in plants and identify novel traits and associated genes for the genetic improvement of crop plants. The present review examines the responses of crops under abiotic stresses in terms of changes in morphology, physiology, and biochemistry, focusing on major cereals and legume crops. It also explores emerging opportunities to accelerate our efforts to identify desired traits and genes associated with stress tolerance.
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Affiliation(s)
- Jagadish Rane
- National Institute of Abiotic Stress Management, Baramati 413115, India; (A.K.S.); (M.K.); (K.M.B.); (K.K.M.); (A.P.)
| | - Ajay Kumar Singh
- National Institute of Abiotic Stress Management, Baramati 413115, India; (A.K.S.); (M.K.); (K.M.B.); (K.K.M.); (A.P.)
| | - Mahesh Kumar
- National Institute of Abiotic Stress Management, Baramati 413115, India; (A.K.S.); (M.K.); (K.M.B.); (K.K.M.); (A.P.)
| | - Karnar M. Boraiah
- National Institute of Abiotic Stress Management, Baramati 413115, India; (A.K.S.); (M.K.); (K.M.B.); (K.K.M.); (A.P.)
| | - Kamlesh K. Meena
- National Institute of Abiotic Stress Management, Baramati 413115, India; (A.K.S.); (M.K.); (K.M.B.); (K.K.M.); (A.P.)
| | - Aliza Pradhan
- National Institute of Abiotic Stress Management, Baramati 413115, India; (A.K.S.); (M.K.); (K.M.B.); (K.K.M.); (A.P.)
| | - P. V. Vara Prasad
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA;
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McAusland L, Smith KE, Williams A, Molero G, Murchie EH. Nocturnal stomatal conductance in wheat is growth-stage specific and shows genotypic variation. THE NEW PHYTOLOGIST 2021; 232:162-175. [PMID: 34143507 DOI: 10.1111/nph.17563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
Nocturnal stomatal conductance (gsn ) represents a significant source of water loss, with implications for metabolism, thermal regulation and water-use efficiency. With increasing nocturnal temperatures due to climate change, it is vital to identify and understand variation in the magnitude and responses of gsn in major crops. We assessed interspecific variation in gsn and daytime stomatal conductance (gs ) in a wild relative and modern spring wheat genotype. To investigate intraspecific variation, we grew six modern wheat genotypes and two landraces under well watered, simulated field conditions. For the diurnal data, higher gsn in the wild relative was associated with significantly lower nocturnal respiration and higher daytime CO2 assimilation while both species exhibited declines in gsn post-dusk and pre-dawn. Lifetime gsn achieved rates of 5.7-18.9% of gs . Magnitude of gsn was genotype specific 'and positively correlated with gs . gsn and gs were significantly higher on the adaxial surface. No relationship was determined between harvest characteristics, stomatal morphology and gsn , while cuticular conductance was genotype specific. Finally, for the majority of genotypes, gsn declined with age. Here we present the discovery that variation in gsn occurs across developmental, morphological and temporal scales in nonstressed wheat, presenting opportunities for exploiting intrinsic variation under heat or water stressed conditions.
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Affiliation(s)
- Lorna McAusland
- School of Biosciences, University of Nottingham, Sutton Bonington, LE12 5RD, UK
| | - Kellie E Smith
- School of Biosciences, University of Nottingham, Sutton Bonington, LE12 5RD, UK
| | - Alexander Williams
- School of Biosciences, University of Nottingham, Sutton Bonington, LE12 5RD, UK
| | - Gemma Molero
- International Maize and Wheat Improvement Center (CIMMYT), Km. 45, Carretera Mexico, El Batan, Texcoco, CP 56237, Mexico
| | - Erik H Murchie
- School of Biosciences, University of Nottingham, Sutton Bonington, LE12 5RD, UK
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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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Xu J, Misra G, Sreenivasulu N, Henry A. What happens at night? Physiological mechanisms related to maintaining grain yield under high night temperature in rice. PLANT, CELL & ENVIRONMENT 2021; 44:2245-2261. [PMID: 33715176 DOI: 10.1111/pce.14046] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 03/01/2021] [Accepted: 03/08/2021] [Indexed: 05/25/2023]
Abstract
High night temperature (HNT) causes substantial yield loss in rice (Oryza sativa L.). In this study, the physiological processes related to flag leaf dark respiration (Rn) and grain filling under HNT were explored in a multi-parent advanced generation intercross population developed for heat tolerance (MAGICheat ) along with selected high temperature tolerant breeding lines developed with heat-tolerant parents. Within a subset of lines, flag leaf Rn under HNT treatment was related to lower spikelet number per panicle and thus reduced yield. HNT enhanced the nighttime reduction of non-structural carbohydrates (NSC) in stem tissue, but not in leaves, and stem nighttime NSC reduction was negatively correlated with yield. Between heading and harvest, the major difference in NSC concentration was found for starch, but not for soluble sugar. HNT weakened the relationship between NSC remobilization and harvest index at both the phenotypic and genetic level. By using genome-wide association studies, an invertase inhibitor, MADS box transcription factors and a UDP-glycosyltransferase that were identified as candidate genes orchestrating stem NSC remobilization in the control treatment were lost under HNT. With the identification of physiological and genetic components related to rice HNT response, this study offers promising prebreeding materials and trait targets to sustain yield stability under climate change.
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Affiliation(s)
- Jiemeng Xu
- Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
| | - Gopal Misra
- Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
| | - Nese Sreenivasulu
- Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
| | - Amelia Henry
- Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
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Cheong KY, Firlar E, Ficaro L, Gorbunov MY, Kaelber JT, Falkowski PG. Saturation of thylakoid-associated fatty acids facilitates bioenergetic coupling in a marine diatom allowing for thermal acclimation. GLOBAL CHANGE BIOLOGY 2021; 27:3133-3144. [PMID: 33749034 DOI: 10.1111/gcb.15612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
In a rapidly warming world, we ask, "What limits the potential of marine diatoms to acclimate to elevated temperatures?," a group of ecologically successful unicellular eukaryotic photoautotrophs that evolved in a cooler ocean and are critical to marine food webs. To this end, we examined thermal tolerance mechanisms related to photosynthesis in the sequenced and transformable model diatom Phaeodactylum tricornutum. Data from transmission electron microscopy (TEM) and fatty acid methyl ester-gas chromatography mass spectrometry (FAME-GCMS) suggest that saturating thylakoid-associated fatty acids allowed rapid (on the order of hours) thermal tolerance up to 28.5°C. Beyond this critical temperature, thylakoid ultrastructure became severely perturbed. Biophysical analyses revealed that electrochemical leakage through the thylakoid membranes was extremely sensitive to elevated temperature (Q10 of 3.5). Data suggest that the loss of the proton motive force (pmf) occurred even when heat-labile photosystem II (PSII) was functioning, and saturation of thylakoid-associated fatty acids was active. Indeed, growth was inhibited when leakage of pmf through thylakoid membranes was insufficiently compensated by proton input from PSII. Our findings provide a mechanistic understanding of the importance of rapid saturation of thylakoid-associated fatty acids for ultrastructure maintenance and a generation of pmf at elevated temperatures. To the extent these experimental results apply, the ability of diatoms to generate a pmf may be a sensitive parameter for thermal sensitivity diagnosis in phytoplankton.
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Affiliation(s)
- Kuan Yu Cheong
- Environmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
- Department of Plant Biology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Emre Firlar
- Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Rutgers New Jersey Cryo-Electron Microscopy & Tomography Core Facility, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Lia Ficaro
- Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Rutgers New Jersey Cryo-Electron Microscopy & Tomography Core Facility, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Maxim Y Gorbunov
- Environmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - Jason T Kaelber
- Institute for Quantitative Biomedicine, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Rutgers New Jersey Cryo-Electron Microscopy & Tomography Core Facility, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Paul G Falkowski
- Environmental Biophysics and Molecular Ecology Program, Department of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
- Department of Earth and Planetary Sciences, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
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Zhu T, De Lima CFF, De Smet I. The Heat is On: How Crop Growth, Development and Yield Respond to High Temperature. JOURNAL OF EXPERIMENTAL BOTANY 2021:erab308. [PMID: 34185832 DOI: 10.1093/jxb/erab308] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Indexed: 06/13/2023]
Abstract
Plants are exposed to a wide range of temperatures during their life cycle and need to continuously adapt. These adaptations need to deal with temperature changes on a daily and seasonal level and with temperatures affected by climate change. Increasing global temperatures negatively impact crop performance, and several physiological, biochemical, morphological and developmental responses to increased temperature have been described that allow plants to mitigate this. In this review, we assess various growth, development, and yield-related responses of crops to extreme and moderate high temperature, focusing on knowledge gained from both monocot (e.g. wheat, barley, maize, rice) and dicot crops (e.g. soybean and tomato) and incorporating information from model plants (e.g. Arabidopsis and Brachypodium). This revealed common and different responses between dicot and monocot crops, and defined different temperature thresholds depending on the species, growth stage and organ.
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Affiliation(s)
- Tingting Zhu
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Cassio Flavio Fonseca De Lima
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Ive De Smet
- Ghent University, Department of Plant Biotechnology and Bioinformatics, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
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Zhai H, Jiang C, Zhao Y, Yang S, Li Y, Yan K, Wu S, Luo B, Du Y, Jin H, Liu X, Zhang Y, Lu F, Reynolds M, Ou X, Qiao W, Jiang Z, Peng T, Gao D, Hu W, Wang J, Gao H, Yin G, Zhang K, Li G, Wang D. Wheat heat tolerance is impaired by heightened deletions in the distal end of 4AL chromosomal arm. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:1038-1051. [PMID: 33372381 PMCID: PMC8131055 DOI: 10.1111/pbi.13529] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 12/09/2020] [Indexed: 05/14/2023]
Abstract
Heat stress (HS) causes substantial damages to worldwide crop production. As a cool season crop, wheat (Triticum aestivum) is sensitive to HS-induced damages. To support the genetic improvement of wheat HS tolerance (HST), we conducted fine mapping of TaHST1, a locus required for maintaining wheat vegetative and reproductive growth under elevated temperatures. TaHST1 was mapped to the distal terminus of 4AL chromosome arm using genetic populations derived from two BC6 F6 breeding lines showing tolerance (E6015-4T) or sensitivity (E6015-3S) to HS. The 4AL region carrying TaHST1 locus was approximately 0.949 Mbp and contained the last 19 high confidence genes of 4AL according to wheat reference genome sequence. Resequencing of E6015-3S and E6015-4T and haplotype analysis of 3087 worldwide wheat accessions revealed heightened deletion polymorphisms in the distal 0.949 Mbp region of 4AL, which was confirmed by the finding of frequent gene losses in this region in eight genome-sequenced hexaploid wheat cultivars. The great majority (86.36%) of the 3087 lines displayed different degrees of nucleotide sequence deletions, with only 13.64% of them resembling E6015-4T in this region. These deletions can impair the presence and/or function of TaHST1 and surrounding genes, thus rendering global wheat germplasm vulnerable to HS or other environmental adversities. Therefore, conscientious and urgent efforts are needed in global wheat breeding programmes to optimize the structure and function of 4AL distal terminus by ensuring the presence of TaHST1 and surrounding genes. The new information reported here will help to accelerate the ongoing global efforts in improving wheat HST.
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Affiliation(s)
- Huijie Zhai
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
- School of Life Science and TechnologyHenan Institute of Science and TechnologyXinxiangChina
| | - Congcong Jiang
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Yue Zhao
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Shuling Yang
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Yiwen Li
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Kunfang Yan
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Shuyu Wu
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Bingke Luo
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Yi Du
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Huaibing Jin
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Xin Liu
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Yanbin Zhang
- Crop Breeding InstituteHeilongjiang Academy of Agricultural SciencesHarbinChina
| | - Fei Lu
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | | | - Xingqi Ou
- School of Life Science and TechnologyHenan Institute of Science and TechnologyXinxiangChina
| | - Wenchen Qiao
- Dryland Farming InstituteHebei Academy of Agricultural and Forestry SciencesHengshuiHebeiChina
| | - Zhikai Jiang
- Xinxiang Academy of Agricultural SciencesXinxiangHenanChina
| | - Tao Peng
- Jiyuan Academy of Agricultral SciencesJiyuanHenanChina
| | - Derong Gao
- Yangzhou Academy of Agricultural SciencesYangzhouJiangsuChina
| | - Wenjing Hu
- Yangzhou Academy of Agricultural SciencesYangzhouJiangsuChina
| | - Jiangchun Wang
- Yantai Academy of Agricultural SciencesYantaiShandongChina
| | - Haitao Gao
- Luoyang Academy of Agricultral and Forestry SciencesLuoyangHenanChina
| | - Guihong Yin
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Kunpu Zhang
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
| | - Guangwei Li
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
| | - Daowen Wang
- College of AgronomyState Key Laboratory of Wheat and Maize Crop Science, and Center for Crop Genome EngineeringHenan Agricultural UniversityZhengzhouChina
- State Key Laboratory of Plant Cell and Chromosome EngineeringInstitute of Genetics and Developmental BiologyChinese Academy of SciencesBeijingChina
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Moore CE, Meacham-Hensold K, Lemonnier P, Slattery RA, Benjamin C, Bernacchi CJ, Lawson T, Cavanagh AP. The effect of increasing temperature on crop photosynthesis: from enzymes to ecosystems. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2822-2844. [PMID: 33619527 PMCID: PMC8023210 DOI: 10.1093/jxb/erab090] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 02/19/2021] [Indexed: 05/03/2023]
Abstract
As global land surface temperature continues to rise and heatwave events increase in frequency, duration, and/or intensity, our key food and fuel cropping systems will likely face increased heat-related stress. A large volume of literature exists on exploring measured and modelled impacts of rising temperature on crop photosynthesis, from enzymatic responses within the leaf up to larger ecosystem-scale responses that reflect seasonal and interannual crop responses to heat. This review discusses (i) how crop photosynthesis changes with temperature at the enzymatic scale within the leaf; (ii) how stomata and plant transport systems are affected by temperature; (iii) what features make a plant susceptible or tolerant to elevated temperature and heat stress; and (iv) how these temperature and heat effects compound at the ecosystem scale to affect crop yields. Throughout the review, we identify current advancements and future research trajectories that are needed to make our cropping systems more resilient to rising temperature and heat stress, which are both projected to occur due to current global fossil fuel emissions.
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Affiliation(s)
- Caitlin E Moore
- School of Agriculture and Environment, The University of Western Australia, Crawley, Australia
- Institute for Sustainability, Energy & Environment, University of Illinois at Urbana-Champaign, Urbana, USA
- Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, USA
- Correspondence: or
| | - Katherine Meacham-Hensold
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, USA
| | | | - Rebecca A Slattery
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, USA
| | - Claire Benjamin
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, USA
| | - Carl J Bernacchi
- Center for Advanced Bioenergy and Bioproducts Innovation, University of Illinois at Urbana-Champaign, Urbana, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, USA
- Global Change and Photosynthesis Research Unit, United States Department of Agriculture–Agricultural Research Service, Urbana, USA
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, USA
| | - Tracy Lawson
- School of Life Sciences, University of Essex, Colchester, UK
| | - Amanda P Cavanagh
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, USA
- School of Life Sciences, University of Essex, Colchester, UK
- Correspondence: or
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Hydrogen sulfide (H 2S) signaling in plant development and stress responses. ABIOTECH 2021; 2:32-63. [PMID: 34377579 PMCID: PMC7917380 DOI: 10.1007/s42994-021-00035-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 02/03/2021] [Indexed: 12/13/2022]
Abstract
ABSTRACT Hydrogen sulfide (H2S) was initially recognized as a toxic gas and its biological functions in mammalian cells have been gradually discovered during the past decades. In the latest decade, numerous studies have revealed that H2S has versatile functions in plants as well. In this review, we summarize H2S-mediated sulfur metabolic pathways, as well as the progress in the recognition of its biological functions in plant growth and development, particularly its physiological functions in biotic and abiotic stress responses. Besides direct chemical reactions, nitric oxide (NO) and hydrogen peroxide (H2O2) have complex relationships with H2S in plant signaling, both of which mediate protein post-translational modification (PTM) to attack the cysteine residues. We also discuss recent progress in the research on the three types of PTMs and their biological functions in plants. Finally, we propose the relevant issues that need to be addressed in the future research. GRAPHIC ABSTRACT SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s42994-021-00035-4.
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Khan A, Ahmad M, Ahmed M, Iftikhar Hussain M. Rising Atmospheric Temperature Impact on Wheat and Thermotolerance Strategies. PLANTS 2020; 10:plants10010043. [PMID: 33375473 PMCID: PMC7823633 DOI: 10.3390/plants10010043] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023]
Abstract
Temperature across the globe is increasing continuously at the rate of 0.15–0.17 °C per decade since the industrial revolution. It is influencing agricultural crop productivity. Therefore, thermotolerance strategies are needed to have sustainability in crop yield under higher temperature. However, improving thermotolerance in the crop is a challenging task for crop scientists. Therefore, this review work was conducted with the aim of providing information on the wheat response in three research areas, i.e., physiology, breeding, and advances in genetics, which could assist the researchers in improving thermotolerance. The optimum temperature for wheat growth at the heading, anthesis, and grain filling duration is 16 ± 2.3 °C, 23 ± 1.75 °C, and 26 ± 1.53 °C, respectively. The high temperature adversely influences the crop phenology, growth, and development. The pre-anthesis high temperature retards the pollen viability, seed formation, and embryo development. The post-anthesis high temperature declines the starch granules accumulation, stem reserve carbohydrates, and translocation of photosynthates into grains. A high temperature above 40 °C inhibits the photosynthesis by damaging the photosystem-II, electron transport chain, and photosystem-I. Our review work highlighted that genotypes which can maintain a higher accumulation of proline, glycine betaine, expression of heat shock proteins, stay green and antioxidant enzymes activity viz., catalase, peroxidase, super oxide dismutase, and glutathione reductase can tolerate high temperature efficiently through sustaining cellular physiology. Similarly, the pre-anthesis acclimation with heat treatment, inorganic fertilizer such as nitrogen, potassium nitrate and potassium chloride, mulches with rice husk, early sowing, presoaking of a 6.6 mM solution of thiourea, foliar application of 50 ppm dithiothreitol, 10 mg per kg of silicon at heading and zinc ameliorate the crop against the high temperature. Finally, it has been suggested that modern genomics and omics techniques should be used to develop thermotolerance in wheat.
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Affiliation(s)
- Adeel Khan
- Department of Plant Breeding and Genetics, PMAS-Arid Agriculture University Rawalpindi, Rawalpindi 46300, Pakistan; (A.K.); (M.A.)
| | - Munir Ahmad
- Department of Plant Breeding and Genetics, PMAS-Arid Agriculture University Rawalpindi, Rawalpindi 46300, Pakistan; (A.K.); (M.A.)
| | - Mukhtar Ahmed
- Department of Agricultural Research for Northern Sweden, Swedish University of Agricultural Sciences, 90183 Umeå, Sweden
- Department of Agronomy, PMAS Arid Agriculture University, Rawalpindi 46300, Pakistan
- Correspondence:
| | - M. Iftikhar Hussain
- Department of Plant Biology & Soil Science, Faculty of Biology, University of Vigo, Campus As Lagoas Marcosende, 36310 Vigo, Spain;
- CITACA, Agri-Food Research and Transfer Cluster, Campus da Auga, University of Vigo, 32004 Ourense, Spain
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Mariem SB, Gámez AL, Larraya L, Fuertes-Mendizabal T, Cañameras N, Araus JL, McGrath SP, Hawkesford MJ, Murua CG, Gaudeul M, Medina L, Paton A, Cattivelli L, Fangmeier A, Bunce J, Tausz-Posch S, Macdonald AJ, Aranjuelo I. Assessing the evolution of wheat grain traits during the last 166 years using archived samples. Sci Rep 2020; 10:21828. [PMID: 33311545 PMCID: PMC7733497 DOI: 10.1038/s41598-020-78504-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/20/2020] [Indexed: 11/09/2022] Open
Abstract
The current study focuses on yield and nutritional quality changes of wheat grain over the last 166 years. It is based on wheat grain quality analyses carried out on samples collected between 1850 and 2016. Samples were obtained from the Broadbalk Continuous Wheat Experiment (UK) and from herbaria from 16 different countries around the world. Our study showed that, together with an increase in carbohydrate content, an impoverishment of mineral composition and protein content occurred. The imbalance in carbohydrate/protein content was specially marked after the 1960's, coinciding with strong increases in ambient [CO2] and temperature and the introduction of progressively shorter straw varieties. The implications of altered crop physiology are discussed.
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Affiliation(s)
- Sinda Ben Mariem
- Spanish National Research Council (CSIC)-Government of Navarre, AgroBiotechnology Institute (IdAB), Av. Pamplona 123, 31006, Mutilva, Spain
| | - Angie L Gámez
- Spanish National Research Council (CSIC)-Government of Navarre, AgroBiotechnology Institute (IdAB), Av. Pamplona 123, 31006, Mutilva, Spain
| | - Luis Larraya
- Institute for Multidisciplinary Applied Biology, Dpto. Agronomía, Biotecnología y Alimentación, Universidad Pública de Navarra, Campus Arrosadia, 31006, Pamplona, Spain
| | | | - Nuria Cañameras
- Universitat Politècnica de Catalunya, EsteveTerrades 8, Building 4, Castelldefels, Spain
| | - José L Araus
- Integrative Crop Ecophysiology Group, Plant Physiology Section, Faculty of Biology, University of Barcelona, Barcelona, and AGROTECNIO Center, Lleida, Spain
| | - Steve P McGrath
- Sustainable Agriculture Sciences, Rothamsted Research, Harpenden, AL5 2JQ, Hertfordshire, UK
| | | | - Carmen Gonzalez Murua
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Myriam Gaudeul
- Institut de Systématique, Évolution, Biodiversité (ISYEB), Muséum National D'Histoire Naturelle, CNRS, EPHE, UA, Sorbonne Université, 57 rue Cuvier, CP 39, 75005, Paris, France
| | - Leopoldo Medina
- Spanish National Research Council (CSIC), Real Jardín Botánico, C/ Claudio Moyano 1, Madrid, Spain
| | - Alan Paton
- Royal Botanic Gardens Kew, Kew Richmond, TW9 3AB, UK
| | - Luigi Cattivelli
- Agricultural Research Council (CREA), Centre for Genomics and Bioinformatics, Via San Protaso 302, Fiorenzuolad'Arda, Italy
| | - Andreas Fangmeier
- Institute of Landscape and Plant Ecology, University of Hohenheim, August-von-Hartmann-Str. 3, 70599, Stuttgart, Germany
| | - James Bunce
- Adaptive Cropping Systems Lab (Retired), Beltsville Agricultural Research Center, Agricultural Research Service, US Department of Agriculture, Beltsville, MD, 20705, USA
| | - Sabine Tausz-Posch
- Department of Agriculture, Science and the Environment, School of Health, Medical and Applied Sciences, CQ University Australia, Rockhampton, QLD, Australia
| | - Andy J Macdonald
- Sustainable Agriculture Sciences, Rothamsted Research, Harpenden, AL5 2JQ, Hertfordshire, UK
| | - Iker Aranjuelo
- Spanish National Research Council (CSIC)-Government of Navarre, AgroBiotechnology Institute (IdAB), Av. Pamplona 123, 31006, Mutilva, Spain.
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Ferguson JN, McAusland L, Smith KE, Price AH, Wilson ZA, Murchie EH. Rapid temperature responses of photosystem II efficiency forecast genotypic variation in rice vegetative heat tolerance. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 104:839-855. [PMID: 32777163 DOI: 10.1111/tpj.14956] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/22/2020] [Accepted: 07/22/2020] [Indexed: 05/24/2023]
Abstract
A key target for the improvement of Oryza sativa (rice) is the development of heat-tolerant varieties. This necessitates the development of high-throughput methodologies for the screening of heat tolerance. Progress has been made to this end via visual scoring and chlorophyll fluorescence; however, these approaches demand large infrastructural investments to expose large populations of adult plants to heat stress. To address this bottleneck, we investigated the response of the maximum quantum efficiency of photosystem II (PSII) to rapidly increasing temperatures in excised leaf segments of juvenile rice plants. Segmented models explained the majority of the observed variation in response. Coefficients from these models, i.e. critical temperature (Tcrit ) and the initial response (m1 ), were evaluated for their usability for forecasting adult heat tolerance, measured as the vegetative heat tolerance of adult rice plants through visual (stay-green) and chlorophyll fluorescence (ɸPSII) approaches. We detected substantial variation in heat tolerance of a randomly selected set of indica rice varieties. Both Tcrit and m1 were associated with measured heat tolerance in adult plants, highlighting their usability as high-throughput proxies. Variation in heat tolerance was associated with daytime respiration but not with photosynthetic capacity, highlighting a role for the non-photorespiratory release of CO2 in heat tolerance. To date, this represents the first published instance of genetic variation in these key gas-exchange traits being quantified in response to heat stress in a diverse set of rice accessions. These results outline an efficient strategy for screening heat tolerance and accentuate the need to focus on reduced rates of respiration to improve heat tolerance in rice.
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Affiliation(s)
- John N Ferguson
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Sutton Bonington Campus, Leicestershire, LE12 5RD, UK
| | - Lorna McAusland
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD, UK
| | - Kellie E Smith
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD, UK
| | - Adam H Price
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, UK
| | - Zoe A Wilson
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD, UK
| | - Erik H Murchie
- Division of Plant and Crop Science, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD, UK
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Dingkuhn M, Luquet D, Fabre D, Muller B, Yin X, Paul MJ. The case for improving crop carbon sink strength or plasticity for a CO 2-rich future. CURRENT OPINION IN PLANT BIOLOGY 2020; 56:259-272. [PMID: 32682621 DOI: 10.1016/j.pbi.2020.05.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 05/13/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Atmospheric CO2 concentration [CO2] has increased from 260 to 280μmolmol-1 (level during crop domestication up to the industrial revolution) to currently 400 and will reach 550μmolmol-1 by 2050. C3 crops are expected to benefit from elevated [CO2] (e-CO2) thanks to photosynthesis responsiveness to [CO2] but this may require greater sink capacity. We review recent literature on crop e-CO2 responses, related source-sink interactions, how abiotic stresses potentially interact, and prospects to improve e-CO2 response via breeding or genetic engineering. Several lines of evidence suggest that e-CO2 responsiveness is related either to sink intrinsic capacity or adaptive plasticity, for example, involving enhanced branching. Wild relatives and old cultivars mostly showed lower photosynthetic rates, less downward acclimation of photosynthesis to e-CO2 and responded strongly to e-CO2 due to greater phenotypic plasticity. While reverting to such archaic traits would be an inappropriate strategy for breeding, we argue that substantial enhancement of vegetative sink vigor, inflorescence size and/or number and root sinks will be necessary to fully benefit from e-CO2. Potential ideotype features based on enhanced sinks are discussed. The generic 'feast-famine' sugar signaling pathway may be suited to engineer sink strength tissue-specifically and stage-specifically and help validate ideotype concepts. Finally, we argue that models better accounting for acclimation to e-CO2 are needed to predict which trait combinations should be targeted by breeders for a CO2-rich world.
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Affiliation(s)
| | | | - Denis Fabre
- CIRAD, UMR 108 AGAP, F-34398 Montpellier, France
| | - Bertrand Muller
- INRAE, UMR 759 LEPSE, Institut de Biologie Intégrative des Plantes, F-34060 Montpellier, France
| | - Xinyou Yin
- Centre for Crop Systems Analysis, Dept. Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
| | - Matthew J Paul
- Plant Science, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom
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43
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Zhu L, Cernusak LA, Song X. Dynamic responses of gas exchange and photochemistry to heat interference during drought in wheat and sorghum. FUNCTIONAL PLANT BIOLOGY : FPB 2020; 47:611-627. [PMID: 32393434 DOI: 10.1071/fp19242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/14/2020] [Indexed: 06/11/2023]
Abstract
Drought and heat stress significantly affect crop growth and productivity worldwide. It is unknown how heat interference during drought affects physiological processes dynamically in crops. Here we focussed on gas exchange and photochemistry in wheat and sorghum in response to simulated heat interference via +15°C of temperature during ~2 week drought and re-watering. Results showed that drought decreased net photosynthesis (Anet), stomatal conductance (gs), maximum velocity of ribulose-1, 5-bisphosphate carboxylase/oxygenase carboxylation (Vcmax) and electron transport rate (J) in both wheat and sorghum. Heat interference did not further reduce Anet or gs. Drought increased non-photochemical quenching (Φnpq), whereas heat interference decreased Φnpq. The δ13C of leaf, stem and roots was higher in drought-treated wheat but lower in drought-treated sorghum. The results suggest that (1) even under drought conditions wheat and sorghum increased or maintained gs for transpirational cooling to alleviate negative effects by heat interference; (2) non-photochemical quenching responded differently to drought and heat stress; (3) wheat and sorghum responded in opposing patterns in δ13C. These findings point to the importance of stomatal regulation under heat crossed with drought stress and could provide useful information on development of better strategies to secure crop production for future climate change.
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Affiliation(s)
- Lingling Zhu
- Shenzhen Key Laboratory of Marine Biological Resources and Ecological Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China; and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Lucas A Cernusak
- College of Science and Engineering, James Cook University, Cairns, Australia
| | - Xin Song
- Shenzhen Key Laboratory of Marine Biological Resources and Ecological Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, 518060, China; and Corresponding author.
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Tao MQ, Jahan MS, Hou K, Shu S, Wang Y, Sun J, Guo SR. Bitter Melon ( Momordica charantia L.) Rootstock Improves the Heat Tolerance of Cucumber by Regulating Photosynthetic and Antioxidant Defense Pathways. PLANTS (BASEL, SWITZERLAND) 2020; 9:E692. [PMID: 32485835 PMCID: PMC7356966 DOI: 10.3390/plants9060692] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/17/2020] [Accepted: 05/25/2020] [Indexed: 01/04/2023]
Abstract
High temperature is considered a critical abiotic stressor that is increasing continuously, which is severely affecting plant growth and development. The use of heat-resistant rootstock grafting is a viable technique that is practiced globally to improve plant resistance towards abiotic stresses. In this experiment, we explored the efficacy of bitter melon rootstock and how it regulates photosynthesis and the antioxidant defense system to alleviate heat stress (42 °C/32 °C) in cucumber. Our results revealed that bitter-melon-grafted seedlings significantly relieved heat-induced growth inhibition and photoinhibition, maintained better photosynthesis activity, and accumulated a greater biomass than self-grafted seedlings. We measured the endogenous polyamine and hydrogen peroxide (H2O2) contents to determine the inherent mechanism responsible for these effects, and the results showed that heat stress induced a transient increase in polyamines and H2O2 in the inner courtyard of grafted seedlings. This increment was greater and more robust in bitter-melon-grafted seedlings. In addition, the use of polyamine synthesis inhibitors MGBG (methylglyoxal bis-guanylhydrazone) and D-Arg (D-arginine), further confirmed that the production of H2O2 under heat stress is mediated by the accumulation of endogenous polyamines. Moreover, compared with other treatments, the bitter-melon-grafted seedlings maintained high levels of antioxidant enzyme activity under high temperature conditions. However, these activities were significantly inhibited by polyamine synthesis inhibitors and H2O2 scavengers (dimethylthiourea, DMTU), indicating that bitter melon rootstock not only maintained better photosynthetic activity under conditions of high temperature stress but also mediated the production of H2O2 through the regulation of the high level of endogenous polyamines, thereby boosting the antioxidant defense system and comprehensively improving the heat tolerance of cucumber seedlings. Taken together, these results indicate that grafting with a resistant cultivar is a promising alternative tool for reducing stress-induced damage.
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Affiliation(s)
- Mei-Qi Tao
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
| | - Mohammad Shah Jahan
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
- Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Kun Hou
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
| | - Sheng Shu
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
- Suqian Academy of Protected Horticulture, Nanjing Agricultural University, Suqian 223800, China
| | - Yu Wang
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
| | - Jin Sun
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
- Suqian Academy of Protected Horticulture, Nanjing Agricultural University, Suqian 223800, China
| | - Shi-Rong Guo
- Key Laboratory of Southern Vegetable Crop Genetic Improvement in Ministry of Agriculture, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China; (M.-Q.T.); (M.S.J.); (K.H.); (S.S.); (Y.W.); (J.S.)
- Suqian Academy of Protected Horticulture, Nanjing Agricultural University, Suqian 223800, China
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Rashid FAA, Crisp PA, Zhang Y, Berkowitz O, Pogson BJ, Day DA, Masle J, Dewar RC, Whelan J, Atkin OK, Scafaro AP. Molecular and physiological responses during thermal acclimation of leaf photosynthesis and respiration in rice. PLANT, CELL & ENVIRONMENT 2020; 43:594-610. [PMID: 31860752 DOI: 10.1111/pce.13706] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/15/2019] [Accepted: 12/16/2019] [Indexed: 05/24/2023]
Abstract
To further our understanding of how sustained changes in temperature affect the carbon economy of rice (Oryza sativa), hydroponically grown plants of the IR64 cultivar were developed at 30°C/25°C (day/night) before being shifted to 25/20°C or 40/35°C. Leaf messenger RNA and protein abundance, sugar and starch concentrations, and gas-exchange and elongation rates were measured on preexisting leaves (PE) already developed at 30/25°C or leaves newly developed (ND) subsequent to temperature transfer. Following a shift in growth temperature, there was a transient adjustment in metabolic gene transcript abundance of PE leaves before homoeostasis was reached within 24 hr, aligning with Rdark (leaf dark respiratory CO2 release) and An (net CO2 assimilation) changes. With longer exposure, the central respiratory protein cytochrome c oxidase (COX) declined in abundance at 40/35°C. In contrast to Rdark , An was maintained across the three growth temperatures in ND leaves. Soluble sugars did not differ significantly with growth temperature, and growth was fastest with extended exposure at 40/35°C. The results highlight that acclimation of photosynthesis and respiration is asynchronous in rice, with heat-acclimated plants exhibiting a striking ability to maintain net carbon gain and growth when exposed to heat-wave temperatures, even while reducing investment in energy-conserving respiratory pathways.
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Affiliation(s)
- Fatimah Azzahra Ahmad Rashid
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
- Department of Biology, Faculty of Science and Mathematics, Sultan Idris Education University, Tanjung Malim, Malaysia
| | - Peter A Crisp
- Department of Plant and Microbial Biology, University of Minnesota, Saint Paul, Minnesota
| | - You Zhang
- CSIRO Plant Industry, Canberra, Australian Capital Territory, Australia
| | - Oliver Berkowitz
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, AgriBio Building, La Trobe University, Melbourne, Victoria, Australia
| | - Barry J Pogson
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - David A Day
- College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia
- Department of Animal, Plant and Soil Sciences, AgriBio Building, La Trobe University, Melbourne, Victoria, Australia
| | - Josette Masle
- Research School of Biology, The Australian National University, Canberra, Australia
| | - Roderick C Dewar
- Research School of Biology, The Australian National University, Canberra, Australia
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, Helsinki, Finland
| | - James Whelan
- Australian Research Council Centre of Excellence in Plant Energy Biology, School of Life Science, AgriBio Building, La Trobe University, Melbourne, Victoria, Australia
| | - Owen K Atkin
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Andrew P Scafaro
- Australian Research Council Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
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46
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Morales F, Ancín M, Fakhet D, González-Torralba J, Gámez AL, Seminario A, Soba D, Ben Mariem S, Garriga M, Aranjuelo I. Photosynthetic Metabolism under Stressful Growth Conditions as a Bases for Crop Breeding and Yield Improvement. PLANTS (BASEL, SWITZERLAND) 2020; 9:E88. [PMID: 31936732 PMCID: PMC7020424 DOI: 10.3390/plants9010088] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/23/2019] [Accepted: 01/02/2020] [Indexed: 01/04/2023]
Abstract
Increased periods of water shortage and higher temperatures, together with a reduction in nutrient availability, have been proposed as major factors that negatively impact plant development. Photosynthetic CO2 assimilation is the basis of crop production for animal and human food, and for this reason, it has been selected as a primary target for crop phenotyping/breeding studies. Within this context, knowledge of the mechanisms involved in the response and acclimation of photosynthetic CO2 assimilation to multiple changing environmental conditions (including nutrients, water availability, and rising temperature) is a matter of great concern for the understanding of plant behavior under stress conditions, and for the development of new strategies and tools for enhancing plant growth in the future. The current review aims to analyze, from a multi-perspective approach (ranging across breeding, gas exchange, genomics, etc.) the impact of changing environmental conditions on the performance of the photosynthetic apparatus and, consequently, plant growth.
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Affiliation(s)
- Fermín Morales
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
- Dpto. Nutrición Vegetal, Estación Experimental de Aula Dei (EEAD), CSIC, Apdo. 13034, 50080 Zaragoza, Spain
| | - María Ancín
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Dorra Fakhet
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Jon González-Torralba
- Institute for Multidisciplinary Applied Biology, Dpto. Agronomía, Biotecnología y Alimentación, Universidad Pública de Navarra, Campus Arrosadia, 31006 Pamplona, Spain;
| | - Angie L. Gámez
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Amaia Seminario
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - David Soba
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Sinda Ben Mariem
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
| | - Miguel Garriga
- Centro de Mejoramiento Genético y Fenómica Vegetal, Facultad de Ciencias Agrarias, Universidad de Talca, Talca 3460000, Chile;
| | - Iker Aranjuelo
- Instituto de Agrobiotecnología (IdAB), Consejo Superior de Investigaciones Científicas (CSIC)-Gobierno de Navarra, Av. Pamplona 123, 31192 Mutilva, Spain; (F.M.); (M.A.); (D.F.); (A.L.G.); (A.S.); (D.S.); (S.B.M.)
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Effects of Elevated Temperature and Ozone in Brassica juncea L.: Growth, Physiology, and ROS Accumulation. FORESTS 2020. [DOI: 10.3390/f11010068] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Global warming and ozone (O3) pose serious threats to crop yield and ecosystem health. Although neither of these factors will act individually in reality, most studies have focused on the responses of plants to air pollution or climate change. Interactive effects of these remain poorly studied. Therefore, this study was conducted to assess the effects of optimal (22/20 °C day/night) and elevated temperature (27/25 °C) and/or ambient (10 ± 10 nL L−1) and elevated O3 concentrations (100 ± 10 nL L−1) on the growth, physiology, and reactive oxygen species (ROS) accumulation of leaf mustard (Brassica juncea L.). The aim was to examine whether elevated temperature increase the O3 damage due to increasing stomatal conductance, and thus, O3 flux into the leaf. Significant reductions in photosynthetic rates occurred under O (elevated O3 with optimal temperatures) and OT (elevated O3 and temperature) conditions compared to C (controls). Stomatal conductance was significantly higher under T than in the C at 7 DAE. Under OT conditions, O3 flux significantly increased compared to that in O conditions at 7 days after exposure (DAE). Significant reductions in total fresh and dry weight were observed under OT conditions compared to those under O. Furthermore, significant reductions in levels of carotenoids and ascorbic acid were observed under OT conditions compared to O. Lipid peroxidation and accumulation of ROS such as hydroxyl radical, hydrogen peroxide, and superoxide radical were higher under O and OT conditions than in C conditions at 7 and 14 DAE. As a result of O3 stress, the results of the present study indicated that the plant injury index significantly increased under OT compared to O conditions. This result suggested that elevated temperature (+5 °C) may enhance O3 damage to B. juncea by increasing stomatal conductance and O3 flux into leaves.
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48
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AL-Shoaibi AA. Combined effects of salinity and temperature on germination, growth and gas exchange in two cultivars of Sorghum bicolor. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2020. [DOI: 10.1080/16583655.2020.1777800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Abdulkhaliq A. AL-Shoaibi
- Department of Biology, College of Science, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
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