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Ru C, Hu X, Chen D, Wang W. Drought stimulus enhanced stress tolerance in winter wheat (Triticum aestivum L.) by improving physiological characteristics, growth, and water productivity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108906. [PMID: 38986237 DOI: 10.1016/j.plaphy.2024.108906] [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: 01/18/2024] [Revised: 05/15/2024] [Accepted: 07/03/2024] [Indexed: 07/12/2024]
Abstract
The impact of drought events on the growth and yield of wheat plants has been extensively reported; however, limited information is available on the changes in physiological characteristics and their effects on the growth and water productivity of wheat after repeated drought stimuli. Moreover, whether appropriate drought stimulus can improve stress resistance in plants by improving physiological traits remains to be explored. Thus, in this study, a pot experiment was conducted to investigate the effects of intermittent and persistent mild [65%-75% soil water-holding capacity (SWHC)], moderate (55%-65% SWHC), and severe drought (45%-55% SWHC) stress on the growth, physiological characteristics, yield, and water-use efficiency (WUE) of winter wheat. After the second stress stimulus, persistent severe drought stress resulted in 30.98%, 234.62%, 53.80%, and 31.00% reduction in leaf relative water content, leaf water potential, photosynthetic rate (Pn), and indole-3-acetic acid content (IAA), respectively, compared to the control plants. However, abscisic acid content, antioxidant enzyme activities, and osmoregulatory substance contents increased significantly under drought stress, especially under persistent drought stress. After the second rehydration stimulus (ASRR), the actual and maximum efficiency of PSII and leaf water status in the plants exposed to intermittent moderate drought (IS2) stress were restored to the control levels, resulting in Pn being 102.56% of the control values; instantaneous WUE of the plants exposed to persistent severe drought stress was 1.79 times that of the control plants. In addition, the activities of superoxide dismutase, peroxidase, catalase, and glutathione reductase, as well as the content of proline, under persistent mild drought stress increased by 52.98%, 33.47%, 51.95%, 52.35%, and 17.07% at ASRR, respectively, compared to the control plants, which provided continuous antioxidant protection to wheat plants. This was also demonstrated by the lower H2O2 and MDA contents after rehydration. At ASRR, the IAA content in the IS2 and persistent moderate drought treatments increased by 36.23% and 19.61%, respectively, compared to the control plants, which favored increased aboveground dry mass and plant height. Compared to the control plants, IS2 significantly increased wheat yield, WUE for grain yield, and WUE for biomass, by 10.15%, 32.94%, and 33.16%, respectively. Collectively, IS2 increased grain growth, yield, and WUE, which could be mainly attributed to improved physiological characteristics after drought-stimulated rehydration.
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Affiliation(s)
- Chen Ru
- School of Engineering, Anhui Agricultural University, Hefei, 230036, 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
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2
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Dusenge ME, Warren JM, Reich PB, Ward EJ, Murphy BK, Stefanski A, Bermudez R, Cruz M, McLennan DA, King AW, Montgomery RA, Hanson PJ, Way DA. Photosynthetic capacity in middle-aged larch and spruce acclimates independently to experimental warming and elevated CO 2. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39101396 DOI: 10.1111/pce.15068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 07/18/2024] [Indexed: 08/06/2024]
Abstract
Photosynthetic acclimation to both warming and elevated CO2 of boreal trees remains a key uncertainty in modelling the response of photosynthesis to future climates. We investigated the impact of increased growth temperature and elevated CO2 on photosynthetic capacity (Vcmax and Jmax) in mature trees of two North American boreal conifers, tamarack and black spruce. We show that Vcmax and Jmax at a standard temperature of 25°C did not change with warming, while Vcmax and Jmax at their thermal optima (Topt) and growth temperature (Tg) increased. Moreover, Vcmax and Jmax at either 25°C, Topt or Tg decreased with elevated CO2. The Jmax/Vcmax ratio decreased with warming when assessed at both Topt and Tg but did not significantly vary at 25°C. The Jmax/Vcmax increased with elevated CO2 at either reference temperature. We found no significant interaction between warming and elevated CO2 on all traits. If this lack of interaction between warming and elevated CO2 on the Vcmax, Jmax and Jmax/Vcmax ratio is a general trend, it would have significant implications for improving photosynthesis representation in vegetation models. However, future research is required to investigate the widespread nature of this response in a larger number of species and biomes.
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Affiliation(s)
- Mirindi Eric Dusenge
- Department of Biology, Mount Allison University, Sackville, New Brunswick, Canada
- Department of Biology, The University of Western Ontario, London, Ontario, Canada
| | - Jeffrey M Warren
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Peter B Reich
- Institute for Global Change Biology, and School for the Environment and Sustainability, University of Michigan, Ann Arbor, Michigan, USA
- Department of Forest Resources, University of Minnesota, Saint Paul, Minnesota, USA
- Hawkesbury Institute for the Environment, University of Western Sydney, Penrith, New South Wales, Australia
| | - Eric J Ward
- Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland, USA
| | - Bridget K Murphy
- Department of Biology, The University of Western Ontario, London, Ontario, Canada
- Department of Biology, University of Toronto Mississauga, Mississauga, Ontario, Canada
- Graduate Program in Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Artur Stefanski
- Department of Forest Resources, University of Minnesota, Saint Paul, Minnesota, USA
| | - Raimundo Bermudez
- Department of Forest Resources, University of Minnesota, Saint Paul, Minnesota, USA
| | - Marisol Cruz
- Departamento de Ciencias Biologicas, Universidad de Los Andes, Bogota, Colombia
| | - David A McLennan
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Anthony W King
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Rebecca A Montgomery
- Department of Forest Resources, University of Minnesota, Saint Paul, Minnesota, USA
| | - Paul J Hanson
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA
| | - Danielle A Way
- Department of Biology, The University of Western Ontario, London, Ontario, Canada
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, Australia
- Nicholas School of the Environment, Duke University, Durham, North Carolina, USA
- Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, New York, USA
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3
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Xu Y, Yu Z, Liu C, Hu Y, Zhang J, Liu J, Chen X, Liu J, Wang G, Liu X, Jin J, Li Y. Variability in soybean yield responses to elevated atmospheric CO 2: Insights from non-structural carbohydrate remobilisation during seed filling. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108802. [PMID: 38852236 DOI: 10.1016/j.plaphy.2024.108802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 05/18/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
The increasing atmospheric CO2 concentration (e[CO2]) has mixed effects on soybean most varieties' yield. This study elucidated the effect of e[CO2] on soybean yield and the underlying mechanisms related to photosynthetic capacity, non-structural carbohydrate (NSC) accumulation, and remobilisation. Four soybean cultivars were cultivated in open-top chambers at two CO2 levels. Photosynthesis rates were determined from R2 to R6. Plants were sampled at R5 and R8 to determine carbohydrate concentrations. There were significant variations in yield responses among the soybean cultivars under e[CO2], from no change in DS1 to a 22% increase in SN14. DS1 and SN14 had the smallest and largest increase, respectively, in daily carbon assimilation capacity. Under e[CO2], DS1, MF5, and XHJ had an increase in Ci, at which point the transition from Rubisco-limited to ribulose-1,5-bisphosphate regeneration-limited photosynthesis occurred, in contrast with SN14. Thus, the cultivars might have distinct mechanisms that enhance photosynthesis under e[CO2] conditions. A positive correlation was between daily carbon assimilation response to e[CO2] and soybean yield, emphasising the importance of enhanced photosynthate accumulation before the R5 stage in determining yield response to e[CO2]. E[CO2] significantly influenced NSC accumulation in vegetative organs at R5, with variation among cultivars. There was enhanced NSC remobilisation during seed filling, indicating cultivar-specific responses to the remobilisation of sucrose and soluble sugars, excluding sucrose and starch. A positive correlation was between leaf and stem NSC remobilisation and yield response to e[CO2], emphasising the role of genetic differences in carbohydrate remobilisation mechanisms in determining soybean yield variation under elevated CO2 levels.
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Affiliation(s)
- Ying Xu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhenhua Yu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Changkai Liu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Yanfeng Hu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Jinyuan Zhang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Junjie Liu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Xueli Chen
- Heilongjiang Joint Laboratory of Soil Microbial Ecology, Heilongjiang Academy of Black Soil Conservation and Utilization, Heilongjiang Academy of Agricultural Sciences, Harbin, 150086, China
| | - Judong Liu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Guanghua Wang
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Xiaobing Liu
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China
| | - Jian Jin
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China; Centre for AgriBioscience, La Trobe University, Bundoora, Vic, 3086, Australia
| | - Yansheng Li
- State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China.
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4
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Zhang N, Berman SR, van den Berg T, Chen Y, Marcelis LFM, Kaiser E. Biochemical versus stomatal acclimation of dynamic photosynthetic gas exchange to elevated CO 2 in three horticultural species with contrasting stomatal morphology. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39011936 DOI: 10.1111/pce.15043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/05/2024] [Accepted: 07/07/2024] [Indexed: 07/17/2024]
Abstract
Understanding photosynthetic acclimation to elevated CO2 (eCO2) is important for predicting plant physiology and optimizing management decisions under global climate change, but is underexplored in important horticultural crops. We grew three crops differing in stomatal density-namely chrysanthemum, tomato, and cucumber-at near-ambient CO2 (450 μmol mol-1) and eCO2 (900 μmol mol-1) for 6 weeks. Steady-state and dynamic photosynthetic and stomatal conductance (gs) responses were quantified by gas exchange measurements. Opening and closure of individual stomata were imaged in situ, using a novel custom-made microscope. The three crop species acclimated to eCO2 with very different strategies: Cucumber (with the highest stomatal density) acclimated to eCO2 mostly via dynamic gs responses, whereas chrysanthemum (with the lowest stomatal density) acclimated to eCO2 mostly via photosynthetic biochemistry. Tomato exhibited acclimation in both photosynthesis and gs kinetics. eCO2 acclimation in individual stomatal pore movement increased rates of pore aperture changes in chrysanthemum, but such acclimation responses resulted in no changes in gs responses. Although eCO2 acclimation occurred in all three crops, photosynthesis under fluctuating irradiance was hardly affected. Our study stresses the importance of quantifying eCO2 acclimatory responses at different integration levels to understand photosynthetic performance under future eCO2 environments.
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Affiliation(s)
- Ningyi Zhang
- College of Horticulture, Nanjing Agricultural University, Nanjing, China
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
| | - Sarah R Berman
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
| | - Tom van den Berg
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
- Integrated Devices and Systems, University of Twente, Enschede, The Netherlands
| | - Yunke Chen
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
- Institute of Urban Agriculture, Chinese Academy of Agricultural Science, Chengdu, China
| | - Leo F M Marcelis
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
| | - Elias Kaiser
- Horticulture and Product Physiology, Department of Plant Sciences, Wageningen University & Research, Wageningen, The Netherlands
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5
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Chen L, Ghannoum O, Furbank RT. Sugar sensing in C4 source leaves: a gap that needs to be filled. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:3818-3834. [PMID: 38642398 PMCID: PMC11233418 DOI: 10.1093/jxb/erae166] [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: 10/11/2023] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
Plant growth depends on sugar production and export by photosynthesizing source leaves and sugar allocation and import by sink tissues (grains, roots, stems, and young leaves). Photosynthesis and sink demand are tightly coordinated through metabolic (substrate, allosteric) feedback and signalling (sugar, hormones) mechanisms. Sugar signalling integrates sugar production with plant development and environmental cues. In C3 plants (e.g. wheat and rice), it is well documented that sugar accumulation in source leaves, due to source-sink imbalance, negatively feeds back on photosynthesis and plant productivity. However, we have a limited understanding about the molecular mechanisms underlying those feedback regulations, especially in C4 plants (e.g. maize, sorghum, and sugarcane). Recent work with the C4 model plant Setaria viridis suggested that C4 leaves have different sugar sensing thresholds and behaviours relative to C3 counterparts. Addressing this research priority is critical because improving crop yield requires a better understanding of how plants coordinate source activity with sink demand. Here we review the literature, present a model of action for sugar sensing in C4 source leaves, and suggest ways forward.
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Affiliation(s)
- Lily Chen
- ARC Centre of Excellence for Translational Photosynthesis, Hawkesbury Institute for the Environment, Western Sydney University, Hawkesbury Campus, NSW, 2753, Australia
| | - Oula Ghannoum
- ARC Centre of Excellence for Translational Photosynthesis, Hawkesbury Institute for the Environment, Western Sydney University, Hawkesbury Campus, NSW, 2753, Australia
| | - Robert T Furbank
- ARC Centre of Excellence for Translational Photosynthesis, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
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6
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Lee M, Stock CA, Shevliakova E, Malyshev S, Beaudor M, Vuichard N. Uneven consequences of global climate mitigation pathways on regional water quality in the 21st century. Nat Commun 2024; 15:5464. [PMID: 38937467 PMCID: PMC11211422 DOI: 10.1038/s41467-024-49866-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 06/21/2024] [Indexed: 06/29/2024] Open
Abstract
Future socioeconomic climate pathways have regional water-quality consequences whose severity and equity have not yet been fully understood across geographic and economic spectra. We use a process-based, terrestrial-freshwater ecosystem model to project 21st-century river nitrogen loads under these pathways. We find that fertilizer usage is the primary determinant of future river nitrogen loads, changing precipitation and warming have limited impacts, and CO2 fertilization-induced vegetation growth enhancement leads to modest load reductions. Fertilizer applications to produce bioenergy in climate mitigation scenarios cause larger load increases than in the highest emission scenario. Loads generally increase in low-income regions, yet remain stable or decrease in high-income regions where agricultural advances, low food and feed production and waste, and/or well-enforced air pollution policies balance biofuel-associated fertilizer burdens. Consideration of biofuel production options with low fertilizer demand and rapid transfer of agricultural advances from high- to low-income regions may help avoid inequitable water-quality outcomes from climate mitigation.
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Affiliation(s)
- Minjin Lee
- Program in Atmospheric and Oceanic Sciences, Princeton University; Princeton, Princeton, NJ, USA.
| | - Charles A Stock
- NOAA/Geophysical Fluid Dynamics Laboratory; Princeton, Princeton, NJ, USA
| | - Elena Shevliakova
- NOAA/Geophysical Fluid Dynamics Laboratory; Princeton, Princeton, NJ, USA
| | - Sergey Malyshev
- NOAA/Geophysical Fluid Dynamics Laboratory; Princeton, Princeton, NJ, USA
| | - Maureen Beaudor
- High Meadows Environmental Institute, Princeton University, Princeton, NJ, USA
| | - Nicolas Vuichard
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA-CNRS-UVSQ, Gif-sur-Yvette, France
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7
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Mota TAL, Almeida CS, Souza GA, Teixeira LS, Araújo WL, Nunes-Nesi A, Zsögön A, Ribeiro DM. Selenium mitigates the loss of nutritional quality in rice grown at an elevated concentration of carbon dioxide. CHEMOSPHERE 2024; 362:142692. [PMID: 38914285 DOI: 10.1016/j.chemosphere.2024.142692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/21/2024] [Accepted: 06/22/2024] [Indexed: 06/26/2024]
Abstract
Atmospheric CO2 enrichment has the potential to improve rice (Oryza sativa L.) yield, but it may also reduce grain nutritional quality, by reducing mineral and protein concentrations. Selenium (Se) fertilization may improve rice grain nutritional composition, but it is not known if this response extends to plants grown in elevated carbon dioxide concentration (eCO2). We conducted experiments to identify the impacts of Se fertilization on yield and quality of rice grains in response to eCO2. The effect of the Se treatment was not significant for the grain yield within each CO2 condition. However, the reduction in macronutrients and micronutrients under eCO2 was mitigated in grains of plants fertilized with Se. Fertilization with Se increased the concentration of Se in roots, flag leaves, and grains independently of atmospheric CO2 concentrations. Elevation of the transcripts of ion transport-related genes could, at least partially, explain the positive relationship between mineral concentrations and grain mass resulting from Se fertilization under eCO2. Treatment with Se also increased the accumulation of total protein in grains under eCO2. Overall, our results revealed that Se fertilization represents a potential asset to maintain rice grain nutritional quality in a future with rising atmospheric CO2 concentration.
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Affiliation(s)
- Thiago A L Mota
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Carla S Almeida
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Genaina A Souza
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Lubia S Teixeira
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Wagner L Araújo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Adriano Nunes-Nesi
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Agustín Zsögön
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil
| | - Dimas M Ribeiro
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900, Viçosa, MG, Brazil.
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8
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Brooks MD, Szeto RC. Biological nitrogen fixation maintains carbon/nitrogen balance and photosynthesis at elevated CO 2. PLANT, CELL & ENVIRONMENT 2024; 47:2178-2191. [PMID: 38481026 DOI: 10.1111/pce.14873] [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: 11/04/2023] [Revised: 01/17/2024] [Accepted: 02/22/2024] [Indexed: 04/30/2024]
Abstract
Understanding crop responses to elevated CO2 is necessary to meet increasing agricultural demands. Crops may not achieve maximum potential yields at high CO2 due to photosynthetic downregulation, often associated with nitrogen limitation. Legumes have been proposed to have an advantage at elevated CO2 due to their ability to exchange carbon for nitrogen. Here, the effects of biological nitrogen fixation (BNF) on the physiological and gene expression responses to elevated CO2 were examined at multiple nitrogen levels by comparing alfalfa mutants incapable of nitrogen fixation to wild-type. Elemental analysis revealed a role for BNF in maintaining shoot carbon/nitrogen (C/N) balance under all nitrogen treatments at elevated CO2, whereas the effect of BNF on biomass was only observed at elevated CO2 and the lowest nitrogen dose. Lower photosynthetic rates at were associated with the imbalance in shoot C/N. Genome-wide transcriptional responses were used to identify carbon and nitrogen metabolism genes underlying the traits. Transcription factors important to C/N signalling were identified from inferred regulatory networks. This work supports the hypothesis that maintenance of C/N homoeostasis at elevated CO2 can be achieved in plants capable of BNF and revealed important regulators in the underlying networks including an alfalfa (Golden2-like) GLK ortholog.
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Affiliation(s)
- Matthew D Brooks
- Global Change and Photosynthesis Research Unit, USDA ARS, Urbana, Illinois, USA
| | - Ronnia C Szeto
- Department of Plant Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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9
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Riaz A, Thomas J, Ali HH, Zaheer MS, Ahmad N, Pereira A. High night temperature stress on rice ( Oryza sativa) - insights from phenomics to physiology. A review. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP24057. [PMID: 38815128 DOI: 10.1071/fp24057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/12/2024] [Indexed: 06/01/2024]
Abstract
Rice (Oryza sativa ) faces challenges to yield and quality due to urbanisation, deforestation and climate change, which has exacerbated high night temperature (HNT). This review explores the impacts of HNT on the physiological, molecular and agronomic aspects of rice growth. Rise in minimum temperature threatens a potential 41% reduction in rice yield by 2100. HNT disrupts rice growth stages, causing reduced seed germination, biomass, spikelet sterility and poor grain development. Recent findings indicate a 4.4% yield decline for every 1°C increase beyond 27°C, with japonica ecotypes exhibiting higher sensitivity than indica. We examine the relationships between elevated CO2 , nitrogen regimes and HNT, showing that the complexity of balancing positive CO2 effects on biomass with HNT challenges. Nitrogen enrichment proves crucial during the vegetative stage but causes disruption to reproductive stages, affecting grain yield and starch synthesis. Additionally, we elucidate the impact of HNT on plant respiration, emphasising mitochondrial respiration, photorespiration and antioxidant responses. Genomic techniques, including CRISPR-Cas9, offer potential for manipulating genes for HNT tolerance. Plant hormones and carbohydrate enzymatic activities are explored, revealing their intricate roles in spikelet fertility, grain size and starch metabolism under HNT. Gaps in understanding genetic factors influencing heat tolerance and potential trade-offs associated with hormone applications remain. The importance of interdisciplinary collaboration is needed to provide a holistic approach. Research priorities include the study of regulatory mechanisms, post-anthesis effects, cumulative HNT exposure and the interaction between climate variability and HNT impact to provide a research direction to enhance rice resilience in a changing climate.
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Affiliation(s)
- Awais Riaz
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
| | - Julie Thomas
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
| | - Hafiz Haider Ali
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA; and Department of Agriculture, Government College University Lahore, Lahore 54000, Pakistan; and Department of Plant Sciences, Aberdeen Research & Extension Center, University of Idaho, Aberdeen, ID, USA
| | - Muhammad Saqlain Zaheer
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University, Riyadh11451, Saudi Arabia
| | - Andy Pereira
- Department of Crop, Soil, and Environmental Sciences, Faculty of Agriculture Food and Life Sciences, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA
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10
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Li S, Agathokleous E, Li S, Xu Y, Xia J, Feng Z. Climate gradient and leaf carbon investment influence the effects of climate change on water use efficiency of forests: A meta-analysis. PLANT, CELL & ENVIRONMENT 2024; 47:1070-1083. [PMID: 38018689 DOI: 10.1111/pce.14777] [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: 09/22/2023] [Revised: 11/08/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
Forest ecosystems cover a large area of the global land surface and are important carbon sinks. The water-carbon cycles of forests are prone to climate change, but uncertainties remain regarding the magnitude of water use efficiency (WUE) response to climate change and the underpinning mechanism driving WUE variation. We conducted a meta-analysis of the effects of elevated CO2 concentration (eCO2 ), drought and elevated temperature (eT) on the leaf- to plant-level WUE, covering 80 field studies and 95 tree species. The results showed that eCO2 increased leaf intrinsic and instantaneous WUE (WUEi, WUEt), whereas drought enhanced both leaf- and plant-level WUEs. eT increased WUEi but decreased carbon isotope-based WUE, possibly due to the influence of mesophyll conductance. Stimulated leaf-level WUE by drought showed a progressing trend with increasing latitude, while eCO2 -induced WUE enhancement showed decreasing trends after >40° N. These latitudinal gradients might influence the spatial pattern of climate and further drove WUE variation. Moreover, high leaf-level WUE under eCO2 and drought was accompanied by low leaf carbon contents. Such a trade-off between growth efficiency and defence suggests a potentially compromised tolerance to diseases and pests. These findings add important ecophysiological parameters into climate models to predict carbon-water cycles of forests.
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Affiliation(s)
- Shenglan Li
- School of Ecology and Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
| | - Evgenios Agathokleous
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
| | - Shuangjiang Li
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
| | - Yansen Xu
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
| | - Jiaxuan Xia
- National Engineering and Technology Center for Information Agriculture, Engineering Research Center of Smart Agriculture, Ministry of Education, Nanjing Agricultural University, Nanjing, Jiangsu, China
| | - Zhaozhong Feng
- Key Laboratory of Ecosystem Carbon Source and Sink, China Meteorological Administration (ECSS-CMA), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China
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11
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Franks PJ, Herold N, Bonan GB, Oleson KW, Dukes JS, Huber M, Schroeder JI, Cox PM, Jones S. Land surface conductance linked to precipitation: Co-evolution of vegetation and climate in Earth system models. GLOBAL CHANGE BIOLOGY 2024; 30:e17188. [PMID: 38462677 DOI: 10.1111/gcb.17188] [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: 08/23/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 03/12/2024]
Abstract
Vegetation and precipitation are known to fundamentally influence each other. However, this interdependence is not fully represented in climate models because the characteristics of land surface (canopy) conductance to water vapor and CO2 are determined independently of precipitation. Working within a coupled atmosphere and land modelling framework (CAM6/CLM5; coupled Community Atmosphere Model v6/Community Land Model v5), we have developed a new theoretical approach to characterizing land surface conductance by explicitly linking its dynamic properties to local precipitation, a robust proxy for moisture available to vegetation. This will enable regional surface conductance characteristics to shift fluidly with climate change in simulations, consistent with general principles of co-evolution of vegetation and climate. Testing within the CAM6/CLM5 framework shows that climate simulations incorporating the new theory outperform current default configurations across several error metrics for core output variables when measured against observational data. In climate simulations for the end of this century the new, adaptive stomatal conductance scheme provides a revised prognosis for average and extreme temperatures over several large regions, with increased primary productivity through central and east Asia, and higher rainfall through North Africa and the Middle East. The new projections also reveal more frequent heatwaves than originally estimated for the south-eastern US and sub-Saharan Africa but less frequent heatwaves across east Europe and northeast Asia. These developments have implications for evaluating food security and risks from extreme temperatures in areas that are vulnerable to climate change.
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Affiliation(s)
- Peter J Franks
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Nicholas Herold
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Gordon B Bonan
- National Center for Atmospheric Research, Boulder, Colorado, USA
| | - Keith W Oleson
- National Center for Atmospheric Research, Boulder, Colorado, USA
| | - Jeffrey S Dukes
- Department of Global Ecology, Carnegie Institution for Science, Stanford, California, USA
| | - Matthew Huber
- Department of Earth, Atmosphere and Planetary Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Julian I Schroeder
- Cell and Developmental Biology Department, University of California San Diego, San Diego, California, USA
| | - Peter M Cox
- Department of Mathematics and Statistics, University of Exeter, Exeter, UK
| | - Simon Jones
- Department of Mathematics and Statistics, University of Exeter, Exeter, UK
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12
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Tcherkez G, Ben Mariem S, Jauregui I, Larraya L, García-Mina JM, Zamarreño AM, Fangmeier A, Aranjuelo I. Differential effects of elevated CO 2 on awn and glume metabolism in durum wheat ( Triticum durum). FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP23255. [PMID: 38388529 DOI: 10.1071/fp23255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
While the effect of CO2 enrichment on wheat (Triticum spp.) photosynthesis, nitrogen content or yield has been well-studied, the impact of elevated CO2 on metabolic pathways in organs other than leaves is poorly documented. In particular, glumes and awns, which may refix CO2 respired by developing grains and be naturally exposed to higher-than-ambient CO2 mole fraction, could show specific responses to elevated CO2 . Here, we took advantage of a free-air CO2 enrichment experiment and performed multilevel analyses, including metabolomics, ionomics, proteomics, major hormones and isotopes in Triticum durum . While in leaves, elevated CO2 tended to accelerate amino acid metabolism with many significantly affected metabolites, the effect on glumes and awns metabolites was modest. There was a lower content in compounds of the polyamine pathway (along with uracile and allantoin) under elevated CO2 , suggesting a change in secondary N metabolism. Also, cytokinin metabolism appeared to be significantly affected under elevated CO2 . Despite this, elevated CO2 did not affect the final composition of awn and glume organic matter, with the same content in carbon, nitrogen and other elements. We conclude that elevated CO2 mostly impacts on leaf metabolism but has little effect in awns and glumes, including their composition at maturity.
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Affiliation(s)
- Guillaume Tcherkez
- Research School of Biology, ANU Joint College of Sciences, Australian National University, Canberra, ACT 2601, Australia; and Institut de Recherche en Horticulture et Semences, INRA d'Angers, Université d'Angers, Structure Fédérative de Recherche QUASAV, 42 rue Georges Morel, Beaucouzé 49071, France
| | - Sinda Ben Mariem
- AgroBiotechnology Institute (IdAB), CSIC-Government of Navarre, Av. Pamplona 123, Mutilva 31006, Spain
| | - Iván Jauregui
- Institute for Multidisciplinary Applied Biology, Universidad Pública de Navarra, Campus Arrosadia, Pamplona 31006, Spain
| | - Luis Larraya
- Institute for Multidisciplinary Applied Biology, Universidad Pública de Navarra, Campus Arrosadia, Pamplona 31006, Spain
| | - Jose M García-Mina
- Universidad de Navarra, Facultades de Ciencias y Farmacia y Nutrición, Grupo de Biología y Química Agrícola (Departamento de Biología Ambiental), c/Irunlarrea 1, Pamplona 31008, Spain
| | - Angel M Zamarreño
- Universidad de Navarra, Facultades de Ciencias y Farmacia y Nutrición, Grupo de Biología y Química Agrícola (Departamento de Biología Ambiental), c/Irunlarrea 1, Pamplona 31008, Spain
| | - Andreas Fangmeier
- Institute of Landscape and Plant Ecology, University of Hohenheim, Ottilie-Zeller-Weg 3, Stuttgart 70599, Germany
| | - Iker Aranjuelo
- AgroBiotechnology Institute (IdAB), CSIC-Government of Navarre, Av. Pamplona 123, Mutilva 31006, Spain
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13
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Roy S, Kapoor R, Mathur P. Revisiting Changes in Growth, Physiology and Stress Responses of Plants under the Effect of Enhanced CO2 and Temperature. PLANT & CELL PHYSIOLOGY 2024; 65:4-19. [PMID: 37935412 DOI: 10.1093/pcp/pcad121] [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: 03/30/2023] [Revised: 08/07/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023]
Abstract
Climate change has universally affected the whole ecosystem in a unified manner and is known to have improbable effects on agricultural productivity and food security. Carbon dioxide (CO2) and temperature are the major environmental factors that have been shown to increase sharply during the last century and are directly responsible for affecting plant growth and development. A number of previous investigations have deliberated the positive effects of elevated CO2 on plant growth and development of various C3 crops, while detrimental effects of enhanced temperature on different crop plants like rice, wheat, maize and legumes are generally observed. A combined effect of elevated CO2 and temperature has yet to be studied in great detail; therefore, this review attempts to delineate the interactive effects of enhanced CO2 and temperature on plant growth, development, physiological and molecular responses. Elevated CO2 maintains leaf photosynthesis rate, respiration, transpiration and stomatal conductance in the presence of elevated temperature and sustains plant growth and productivity in the presence of both these environmental factors. Concomitantly, their interaction also affects the nutritional quality of seeds and leads to alterations in the composition of secondary metabolites. Elevated CO2 and temperature modulate phytohormone concentration in plants, and due to this fact, both environmental factors have substantial effects on abiotic and biotic stresses. Elevated CO2 and temperature have been shown to have mitigating effects on plants in the presence of other abiotic stress agents like drought and salinity, while no such pattern has been observed in the presence of biotic stress agents. This review focuses on the interactive effects of enhanced CO2 and temperature on different plants and is the first of its kind to deliver their combined responses in such detail.
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Affiliation(s)
- Swarnendu Roy
- Plant Biochemistry Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Dist. Darjeeling, West Bengal 734013, India
| | - Rupam Kapoor
- Department of Botany, University of Delhi, Delhi 110007, India
| | - Piyush Mathur
- Microbiology Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Dist. Darjeeling, West Bengal 734013, India
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14
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Wei Q, Pan H, Yang Y, Tan S, Zheng L, Wang H, Zhang J, Zhang Z, Wei Y, Wang X, Ma X, Xiong S. Effects of elevated atmospheric [CO 2] on grain starch characteristics in different specialized wheat. FRONTIERS IN PLANT SCIENCE 2024; 14:1334053. [PMID: 38304450 PMCID: PMC10830628 DOI: 10.3389/fpls.2023.1334053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/29/2023] [Indexed: 02/03/2024]
Abstract
The increasing atmospheric [CO2] poses great challenges to wheat production. Currently, the response of starch characteristics in different specialized wheat cultivars to elevated [CO2], as well as the underlying physiological and molecular mechanisms remains unclear. Therefore, an experiment was conducted with open-top chambers to study the effects of ambient [CO2] [a(CO2)] and elevated [CO2] [e(CO2)] on photosynthetic performance, yield and starch characteristics of bread wheat (Zhengmai 369, ZM369) and biscuit wheat (Yangmai 15, YM15) from 2020 to 2022. The results demonstrated a significant improvement in photosynthetic performance, yield, amylose and amylopectin content, volume ratio of large granules under e[CO2]. Moreover, e[CO2] upregulated the gene expression and enzyme activities of GBSS (Granule-bound starch synthase) and SSS (Soluble starch synthase), increased starch pasting viscosity, gelatinization enthalpy and crystallinity. Compared to YM15, ZM369 exhibited a higher upregulation of GBSSI, greater increase in amylose content and volume ratio of large granules, as well as higher gelatinization enthalpy and crystallinity. However, ZM369 showed a lower increase in amylopectin content and a lower upregulation of SSSI and SSSII. Correlation analysis revealed amylose and amylopectin content had a positive correlation with GBSS and SSS, respectively, a significant positively correlation among the amylose and amylopectin content, starch granule volume, and pasting properties. In conclusion, these changes may enhance the utilization value of biscuit wheat but exhibit an opposite effect on bread wheat. The results provide a basis for selecting suitable wheat cultivars and ensuring food security under future climate change conditions.
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Affiliation(s)
- Qiongru Wei
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Huqiang Pan
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Yuxiu Yang
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Shichao Tan
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Liang Zheng
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Huali Wang
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Jie Zhang
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Zhiyong Zhang
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Yihao Wei
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Xiaochun Wang
- College of Life Science, Henan Agricultural University, Zhengzhou, China
| | - Xinming Ma
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Shuping Xiong
- Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou, China
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15
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Yang K, Huang Y, Yang J, Lv C, Sun W, Hu Z, You C, Yu L. Do rice growth and yield respond similarly to abrupt and gradual increase in atmospheric CO 2? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167658. [PMID: 37813261 DOI: 10.1016/j.scitotenv.2023.167658] [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: 06/23/2023] [Revised: 09/30/2023] [Accepted: 10/05/2023] [Indexed: 10/11/2023]
Abstract
Crops have been well studied at abruptly elevated CO2 (e[CO2]). In fact, atmospheric CO2 concentration is rising gradually, but its ecological effect is little known. Thus, rice growth and yield were investigated under gradual e[CO2] (GE) and abrupt e[CO2] (AE) using open-top chambers. Gradual e[CO2] involved an ambient CO2 (a[CO2]) + 40 μmol mol-1 per year in 2016 until a[CO2] + 200 μmol mol-1 in 2020, while AE maintained a[CO2] + 200 μmol mol-1 from 2016 to 2020. We found that steady-state photosynthetic rates responded similarly and increased significantly under GE and AE, however, photosynthetic induction time in dynamic photosynthesis was reduced by AE. Gradual e[CO2] had little effect on biomass before the grain filling stage, while AE significantly stimulated biomass because of the stronger tillering ability and faster photosynthetic induction rate. Neither e[CO2] increased biomass at maturity, however, a significant increase in panicle density was observed under AE. Surprisingly, rice yield was not promoted by both e[CO2], possibly resulting from the reduced carbon assimilation caused by accelerated phenology from grain filling to maturity. These results promote a new understanding of the CO2 fertilization effect with small and slow increases in CO2 concentration, closer to what happens in nature. This may partly challenge the classic view of elevated CO2 fertilization effects from AE.
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Affiliation(s)
- Kai Yang
- School of Civil Engineering and Architecture, Chuzhou University, Chuzhou, China; State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yao Huang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jingrui Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Chunhua Lv
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wenjuan Sun
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Zhenghua Hu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, China
| | - Chunyan You
- Forestry Station of Bureau of Agriculture and Rural Affairs, Pukou District, Nanjing, China
| | - Lingfei Yu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; College of Life Sciences, Hebei University, Baoding, China.
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16
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Li A, Lv D, Zhang Y, Zhang D, Zong Y, Shi X, Li P, Hao X. Elevated CO 2 concentration enhances drought resistance of soybean by regulating cell structure, cuticular wax synthesis, photosynthesis, and oxidative stress response. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108266. [PMID: 38103338 DOI: 10.1016/j.plaphy.2023.108266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/04/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023]
Abstract
The atmospheric [CO2] and the frequency and intensity of extreme weather events such as drought are increased, leading to uncertainty to soybean production. Elevated [CO2] (eCO2) partially mitigates the adverse effects of drought stress on crop growth and photosynthetic performance, but the mitigative mechanism is not well understood. In this study, soybean seedlings under drought stress simulated by PEG-6000 were grown in climate chambers with different [CO2] (400 μmol mol-1 and 700 μmol mol-1). The changes in anatomical structure, wax content, photosynthesis, and antioxidant enzyme were investigated by the analysis of physiology and transcriptome sequencing (RNA-seq). The results showed that eCO2 increased the thickness of mesophyll cells and decreased the thickness of epidermal cells accompanied by reduced stomatal conductance, thus reducing water loss in soybean grown under drought stress. Meanwhile, eCO2 up-regulated genes related to wax anabolism, thus producing more epidermal wax. Under drought stress, eCO2 increased net photosynthetic rate (PN), ribulose-1,5-bisphosphate carboxylase/oxygenase activity, and alerted the gene expressions in photosynthesis. The increased sucrose synthesis and decreased sucrose decomposition contributed to the progressive increase in the soluble saccharide contents under drought stress with or without eCO2. In addition, eCO2 increased the expressions of genes associated with peroxidase (POD) and proline (Pro), thus enhancing POD activity and Pro content and improving the drought resistance in soybean. Taken together, these findings deepen our understanding of the effects of eCO2 on alleviating drought stress in soybean and provide potential target genes for the genetic improvement of drought tolerance in soybean.
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Affiliation(s)
- Ali Li
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China; Hybrid Rape Research Center of Shaanxi Province, Yangling, 712100, China
| | - Danni Lv
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Yan Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Dongsheng Zhang
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Yuzheng Zong
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Xinrui Shi
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China
| | - Ping Li
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
| | - Xingyu Hao
- College of Agriculture, Shanxi Agricultural University, Taigu, 030800, Shanxi, China.
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17
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Mateus-Rodríguez JF, Lahive F, Hadley P, Daymond AJ. Effects of simulated climate change conditions of increased temperature and [CO2] on the early growth and physiology of the tropical tree crop, Theobroma cacao L. TREE PHYSIOLOGY 2023; 43:2050-2063. [PMID: 37758447 PMCID: PMC10714407 DOI: 10.1093/treephys/tpad116] [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: 03/24/2023] [Revised: 08/09/2023] [Accepted: 09/18/2023] [Indexed: 10/03/2023]
Abstract
Despite multiple studies of the impact of climate change on temperate tree species, experiments on tropical and economically important tree crops, such as cacao (Theobroma cacao L.), are still limited. Here, we investigated the combined effects of increased temperature and atmospheric carbon dioxide concentration ([CO2]) on the growth, photosynthesis and development of juvenile plants of two contrasting cacao genotypes: SCA 6 and PA 107. The factorial growth chamber experiment combined two [CO2] treatments (410 and 700 p.p.m.) and three day/night temperature regimes (control: 31/22 °C, control + 2.5 °C: 33.5/24.5 °C and control + 5.0 °C: 36/27 °C) at a constant vapour pressure deficit (VPD) of 0.9 kPa. At elevated [CO2], the final dry weight and the total and individual leaf areas increased in both genotypes, while the duration for individual leaf expansion declined in PA 107. For both genotypes, elevated [CO2] also improved light-saturated net photosynthesis (Pn) and intrinsic water-use efficiency (iWUE), whereas leaf transpiration (E) and stomatal conductance (gs) decreased. Under a constant low VPD, increasing temperatures above 31/22 °C enhanced the rates of Pn, E and gs in both genotypes, suggesting that photosynthesis responds positively to higher temperatures than previously reported for cacao. However, dry weight and the total and individual leaf areas declined with increases in temperature, which was more evident in SCA 6 than PA 107, suggesting the latter genotype was more tolerant to elevated temperature. Our results suggest that the combined effect of elevated [CO2] and temperature is likely to improve the early growth of high temperature-tolerant genotypes, while elevated [CO2] appeared to ameliorate the negative effects of increased temperatures on growth parameters of more sensitive material. The evident genotypic variation observed in this study demonstrates the scope to select and breed cacao varieties capable of adapting to future climate change scenarios.
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Affiliation(s)
- Julián Fernando Mateus-Rodríguez
- Centro de Investigación Palmira, Corporación Colombiana de Investigación Agropecuaria – AGROSAVIA, Intersección Carrera 36A con Calle 23, Palmira, Valle del Cauca, Postcode 753533, Colombia
| | - Fiona Lahive
- School of Agriculture, Policy and Development, University of Reading, Earley Gate, Reading RG6 6EU, UK
| | - Paul Hadley
- School of Agriculture, Policy and Development, University of Reading, Earley Gate, Reading RG6 6EU, UK
| | - Andrew J Daymond
- School of Agriculture, Policy and Development, University of Reading, Earley Gate, Reading RG6 6EU, UK
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18
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Dahal K, Milne MA, Gervais T. The enhancement of photosynthetic performance, water use efficiency and potato yield under elevated CO 2 is cultivar dependent. FRONTIERS IN PLANT SCIENCE 2023; 14:1287825. [PMID: 38046606 PMCID: PMC10690597 DOI: 10.3389/fpls.2023.1287825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/09/2023] [Indexed: 12/05/2023]
Abstract
As a fourth major food crop, potato could fulfill the nutritional demand of the growing population. Understanding how potato plants respond to predicted increase in atmospheric CO2 at the physiological, biochemical and molecular level is therefore important to improve potato productivity. Thus, the main objectives of the present study are to investigate the effects of elevated CO2 on the photosynthetic performance, water use efficiency and tuber yield of various commercial potato cultivars combined with biochemical and molecular analyses. We grew five potato cultivars (AC Novachip, Atlantic, Kennebec, Russet Burbank and Shepody) at either ambient CO2 (400 μmol CO2 mol-1) or elevated (750 μmol CO2 mol-1) CO2. Compared to ambient CO2-grown counterparts, elevated CO2-grown Russet Burbank and Shepody exhibited a significant increase in tuber yield of 107% and 49% respectively, whereas AC Novachip, Atlantic and Kennebec exhibited a 16%, 6% and 44% increment respectively. These differences in CO2-enhancement of tuber yield across the cultivars were mainly associated with the differences in CO2-stimulation of rates of photosynthesis. For instance, elevated CO2 significantly stimulated the rates of gross photosynthesis for AC Novachip (30%), Russet Burbank (41%) and Shepody (28%) but had minimal effects for Atlantic and Kennebec when measured at growth light. Elevated CO2 significantly increased the total tuber number for Atlantic (40%) and Shepody (83%) but had insignificant effects for other cultivars. Average tuber size increased for AC Novachip (16%), Kennebec (30%) and Russet Burbank (80%), but decreased for Atlantic (25%) and Shepody (19%) under elevated versus ambient CO2 conditions. Although elevated CO2 minimally decreased stomatal conductance (6-22%) and transpiration rates (2-36%), instantaneous water use efficiency increased by up to 79% in all cultivars suggesting that enhanced water use efficiency was mainly associated with increased photosynthesis at elevated CO2. The effects of elevated CO2 on electron transport rates, non-photochemical quenching, excitation pressure, and leaf chlorophyll and protein content varied across the cultivars. We did not observe any significant differences in plant growth and morphology in elevated versus ambient CO2-grown plants. Taken all together, we conclude that the CO2-stimulation of photosynthetic performance, water use efficiency and tuber yield of potatoes is cultivar dependent.
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Affiliation(s)
- Keshav Dahal
- Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Fredericton, NB, Canada
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19
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Chang CY, Unda F, Mansfield SD, Ensminger I. Rapid response of nonstructural carbohydrate allocation and photosynthesis to short photoperiod, low temperature, or elevated CO 2 in Pinus strobus. PHYSIOLOGIA PLANTARUM 2023; 175:e14095. [PMID: 38148184 DOI: 10.1111/ppl.14095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 10/16/2023] [Accepted: 10/24/2023] [Indexed: 12/28/2023]
Abstract
During autumn, decreasing photoperiod and temperature temporarily perturb the balance between carbon uptake and carbon demand in overwintering plants, requiring coordinated adjustments in photosynthesis and carbon allocation to re-establish homeostasis. Here we examined adjustments of photosynthesis and allocation of nonstructural carbohydrates (NSCs) following a sudden shift to short photoperiod, low temperature, and/or elevated CO2 in Pinus strobus seedlings. Seedlings were initially acclimated to 14 h photoperiod (22/15°C day/night) and ambient CO2 (400 ppm) or elevated CO2 (800 ppm). Seedlings were then shifted to 8 h photoperiod for one of three treatments: no temperature change at ambient CO2 (22/15°C, 400 ppm), low temperature at ambient CO2 (12/5°C, 400 ppm), or no temperature change at elevated CO2 (22/15°C, 800 ppm). Short photoperiod caused all seedlings to exhibit partial nighttime depletion of starch. Short photoperiod alone did not affect photosynthesis. Short photoperiod combined with low temperature caused hexose accumulation and repression of photosynthesis within 24 h, followed by a transient increase in nonphotochemical quenching (NPQ). Under long photoperiod, plants grown under elevated CO2 exhibited significantly higher NSCs and photosynthesis compared to ambient CO2 plants, but carbon uptake exceeded sink capacity, leading to elevated NPQ; carbon sink capacity was restored and NPQ relaxed within 24 h after shift to short photoperiod. Our findings indicate that P. strobus rapidly adjusts NSC allocation, not photosynthesis, to accommodate short photoperiod. However, the combination of short photoperiod and low temperature, or long photoperiod and elevated CO2 disrupts the balance between photosynthesis and carbon sink capacity, resulting in increased NPQ to alleviate excess energy.
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Affiliation(s)
- Christine Y Chang
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
- Graduate Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada
| | - Faride Unda
- Department of Wood Science, University of British Columbia, Vancouver, BC, Canada
| | - Shawn D Mansfield
- Department of Wood Science, University of British Columbia, Vancouver, BC, Canada
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Ingo Ensminger
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, Canada
- Graduate Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada
- Graduate Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, ON, Canada
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20
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Bakker MG, Whitaker BK, McCormick SP, Ainsworth EA, Vaughan MM. Manipulating atmospheric CO 2 concentration induces shifts in wheat leaf and spike microbiomes and in Fusarium pathogen communities. Front Microbiol 2023; 14:1271219. [PMID: 37881249 PMCID: PMC10595150 DOI: 10.3389/fmicb.2023.1271219] [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: 08/01/2023] [Accepted: 09/25/2023] [Indexed: 10/27/2023] Open
Abstract
Changing atmospheric composition represents a source of uncertainty in our assessment of future disease risks, particularly in the context of mycotoxin producing fungal pathogens which are predicted to be more problematic with climate change. To address this uncertainty, we profiled microbiomes associated with wheat plants grown under ambient vs. elevated atmospheric carbon dioxide concentration [CO2] in a field setting over 2 years. We also compared the dynamics of naturally infecting versus artificially introduced Fusarium spp. We found that the well-known temporal dynamics of plant-associated microbiomes were affected by [CO2]. The abundances of many amplicon sequence variants significantly differed in response to [CO2], often in an interactive manner with date of sample collection or with tissue type. In addition, we found evidence that two strains within Fusarium - an important group of mycotoxin producing fungal pathogens of plants - responded to changes in [CO2]. The two sequence variants mapped to different phylogenetic subgroups within the genus Fusarium, and had differential [CO2] responses. This work informs our understanding of how plant-associated microbiomes and pathogens may respond to changing atmospheric compositions.
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Affiliation(s)
- Matthew G. Bakker
- Department of Microbiology, University of Manitoba, Winnipeg, MB, Canada
| | - Briana K. Whitaker
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, Peoria, IL, United States
| | - Susan P. McCormick
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, Peoria, IL, United States
| | - Elizabeth A. Ainsworth
- Global Change and Photosynthesis Research Unit, Agricultural Research Service, United States Department of Agriculture, Urbana, IL, United States
| | - Martha M. Vaughan
- Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, United States Department of Agriculture, Peoria, IL, United States
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21
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Li Y, Zhang P, Sheng W, Zhang Z, Rose RJ, Song Y. Securing maize reproductive success under drought stress by harnessing CO 2 fertilization for greater productivity. FRONTIERS IN PLANT SCIENCE 2023; 14:1221095. [PMID: 37860252 PMCID: PMC10582713 DOI: 10.3389/fpls.2023.1221095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 09/19/2023] [Indexed: 10/21/2023]
Abstract
Securing maize grain yield is crucial to meet food and energy needs for the future growing population, especially under frequent drought events and elevated CO2 (eCO2) due to climate change. To maximize the kernel setting rate under drought stress is a key strategy in battling against the negative impacts. Firstly, we summarize the major limitations to leaf source and kernel sink in maize under drought stress, and identified that loss in grain yield is mainly attributed to reduced kernel set. Reproductive drought tolerance can be realized by collective contribution with a greater assimilate import into ear, more available sugars for ovary and silk use, and higher capacity to remobilize assimilate reserve. As such, utilization of CO2 fertilization by improved photosynthesis and greater reserve remobilization is a key strategy for coping with drought stress under climate change condition. We propose that optimizing planting methods and mining natural genetic variation still need to be done continuously, meanwhile, by virtue of advanced genetic engineering and plant phenomics tools, the breeding program of higher photosynthetic efficiency maize varieties adapted to eCO2 can be accelerated. Consequently, stabilizing maize production under drought stress can be achieved by securing reproductive success by harnessing CO2 fertilization.
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Affiliation(s)
- Yangyang Li
- College of Agronomy, Anhui Agricultural University, Hefei, Anhui, China
| | - Pengpeng Zhang
- College of Agronomy, Anhui Agricultural University, Hefei, Anhui, China
| | - Wenjing Sheng
- College of Agronomy, Anhui Agricultural University, Hefei, Anhui, China
| | - Zixiang Zhang
- College of Agronomy, Anhui Agricultural University, Hefei, Anhui, China
| | - Ray J. Rose
- School of Environmental and Life Sciences, The University of Newcastle, Newcastle, NSW, Australia
| | - Youhong Song
- College of Agronomy, Anhui Agricultural University, Hefei, Anhui, China
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
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22
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Sharma RK, Dhillon J, Kumar P, Bheemanahalli R, Li X, Cox MS, Reddy KN. Climate trends and maize production nexus in Mississippi: empirical evidence from ARDL modelling. Sci Rep 2023; 13:16641. [PMID: 37789065 PMCID: PMC10547789 DOI: 10.1038/s41598-023-43528-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023] Open
Abstract
Climate change poses a significant threat to agriculture. However, climatic trends and their impact on Mississippi (MS) maize (Zea mays L.) are unknown. The objectives were to: (i) analyze trends in climatic variables (1970 to 2020) using Mann-Kendall and Sen slope method, (ii) quantify the impact of climate change on maize yield in short and long run using the auto-regressive distributive lag (ARDL) model, and (iii) categorize the critical months for maize-climate link using Pearson's correlation matrix. The climatic variables considered were maximum temperature (Tmax), minimum temperature (Tmin), diurnal temperature range (DTR), precipitation (PT), relative humidity (RH), and carbon emissions (CO2). The pre-analysis, post-analysis, and model robustness statistical tests were verified, and all conditions were met. A significant upward trend in Tmax (0.13 °C/decade), Tmin (0.27 °C/decade), and CO2 (5.1 units/decade), and a downward trend in DTR ( - 0.15 °C/decade) were noted. The PT and RH insignificantly increased by 4.32 mm and 0.11% per decade, respectively. The ARDL model explained 76.6% of the total variations in maize yield. Notably, the maize yield had a negative correlation with Tmax for June, and July, with PT in August, and with DTR for June, July, and August, whereas a positive correlation was noted with Tmin in June, July, and August. Overall, a unit change in Tmax reduced the maize yield by 7.39% and 26.33%, and a unit change in PT reduced it by 0.65% and 2.69% in the short and long run, respectively. However, a unit change in Tmin, and CO2 emissions increased maize yield by 20.68% and 0.63% in the long run with no short run effect. Overall, it is imperative to reassess the agronomic management strategies, developing and testing cultivars adaptable to the revealed climatic trend, with ability to withstand severe weather conditions in ensuring sustainable maize production.
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Affiliation(s)
| | - Jagmandeep Dhillon
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi, USA.
| | - Pushp Kumar
- Department of Economics, Manipal University Jaipur, Dhami Kalan, Rajasthan, India
| | - Raju Bheemanahalli
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi, USA
| | - Xiaofei Li
- Department of Agricultural Economics, Mississippi State University, Mississippi, USA
| | - Michael S Cox
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi, USA
| | - Krishna N Reddy
- Crop Production Systems Research Unit, United States Department of Agriculture (USDA)-Agricultural Research Service (ARS), Stoneville, MS, USA
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23
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Leisner CP, Potnis N, Sanz-Saez A. Crosstalk and trade-offs: Plant responses to climate change-associated abiotic and biotic stresses. PLANT, CELL & ENVIRONMENT 2023; 46:2946-2963. [PMID: 36585762 DOI: 10.1111/pce.14532] [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: 09/30/2022] [Revised: 12/07/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
As sessile organisms, plants are constantly challenged by a dynamic growing environment. This includes fluctuations in temperature, water availability, light levels, and changes in atmospheric constituents such as carbon dioxide (CO2 ) and ozone (O3 ). In concert with changes in abiotic conditions, plants experience changes in biotic stress pressures, including plant pathogens and herbivores. Human-induced increases in atmospheric CO2 levels have led to alterations in plant growth environments that impact their productivity and nutritional quality. Additionally, it is predicted that climate change will alter the prevalence and virulence of plant pathogens, further challenging plant growth. A knowledge gap exists in the complex interplay between plant responses to biotic and abiotic stress conditions. Closing this gap is crucial for developing climate resilient crops in the future. Here, we briefly review the physiological responses of plants to elevated CO2 , temperature, tropospheric O3 , and drought conditions, as well as the interaction of these abiotic stress factors with plant pathogen pressure. Additionally, we describe the crosstalk and trade-offs involved in plant responses to both abiotic and biotic stress, and outline targets for future work to develop a more sustainable future food supply considering future climate change.
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Affiliation(s)
- Courtney P Leisner
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
| | - Neha Potnis
- Department of Entomology and Plant Pathology, Auburn University, Auburn, Alabama, USA
| | - Alvaro Sanz-Saez
- Department of Crop, Soil and Environmental Science, Auburn University, Auburn, Alabama, USA
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24
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Akhlaq M, Chuan Z, Haofang Y, Shaowei L, Ni Y, Zhou J, Xue R, Li J, Hussain Z, Iqbal S. Exploring adequate CO 2 elevation for optimum tomato growth and yield under protected cultivation. JOURNAL OF PLANT PHYSIOLOGY 2023; 289:154093. [PMID: 37742534 DOI: 10.1016/j.jplph.2023.154093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/26/2023]
Abstract
The adequate elevation of CO2 concentrations (e [CO2]) could not be assessed by constrained analysis of comparative experimental study for optimum plant growth and yield with improved fruit quality owing to the lack of conjunctive investigation of plant parametric responses. Instead, the principal component analysis (PCA) and technique for order preference by similarity to ideal solution (TOPSIS) assessed and quantified the parametric plant responses to identify the adequate level of e [CO2] for optimum plant growth and yield. In this study, tomato plants were grown under an ambient CO2 (a [CO2], 500 μmol mol-1) and three e [CO2] (700, 850 and 1000 μmol mol-1): named EC700, EC850 and EC1000, respectively, in autumn-winter (AW) 2020 and spring summer (SS) 2021 growing seasons to investigate and evaluate the plant parametric responses under e [CO2]. The tomato plant's response with maximum transportability of biomass to fruits was observed under 700 μmol mol-1. The plant height, stem diameter and LAI were enhanced compared to a [CO2] at the optimum level under 1000 μmol mol-1 (by 50.53, 20.98 and 44.44%) and 700 μmol mol-1 (by 22.41, 12.09 and 26.88%) in Aw 2020; Ss 2021, respectively. The optimum yield was increased under 700 μmol mol-1 by 73.95% and 55.58% in Aw 2020; Ss 2021, respectively. EC700 was ranked as a priority by TOPSIS with 0.632 and 0.694 plant response performance index in Aw 2020; Ss 2021, respectively, to get optimum tomato growth, yield, water use efficiency and fruit quality. The results of this study are beneficial for commercial greenhouse crop production by fumigating the adequate level of e [CO2], to reduce the cost of CO2 fertigation, enhance the yield and save the water quantity.
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Affiliation(s)
- Muhammad Akhlaq
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China; Faculty of Agricultural Engineering and Technology, PMAS-Arid Agriculture University, Rawalpindi, 46300, Pakistan
| | - Zhang Chuan
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China.
| | - Yan Haofang
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, 212013, China; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing, 210029, China
| | - Liang Shaowei
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing, 210029, China
| | - Yuxin Ni
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Junan Zhou
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Run Xue
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Jun Li
- School of Agricultural Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Zawar Hussain
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, 212013, China; Department of Agricultural Engineering, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Shahzad Iqbal
- Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, 212013, China
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25
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da Silva Fortirer J, Grandis A, Pagliuso D, de Toledo Castanho C, Buckeridge MS. Meta-analysis of the responses of tree and herb to elevated CO 2 in Brazil. Sci Rep 2023; 13:15832. [PMID: 37739974 PMCID: PMC10517018 DOI: 10.1038/s41598-023-40783-5] [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: 02/19/2023] [Accepted: 08/16/2023] [Indexed: 09/24/2023] Open
Abstract
The CO2 concentration has increased in the atmosphere due to fossil fuel consumption, deforestation, and land-use changes. Brazil represents one of the primary sources of food on the planet and is also the world's largest tropical rainforest, one of the hot spots of biodiversity in the world. In this work, a meta-analysis was conducted to compare several CO2 Brazilian experiments displaying the diversity of plant responses according to life habits, such as trees (79% natives and 21% cultivated) and herbs (33% natives and 67% cultivated). We found that trees and herbs display different responses. The young trees tend to allocate carbon from increased photosynthetic rates and lower respiration in the dark-to organ development, increasing leaves, roots, and stem biomasses. In addition, more starch is accumulated in the young trees, denoting a fine control of carbon metabolism through carbohydrate storage. Herbs increased drastically in water use efficiency, controlled by stomatal conductance, with more soluble sugars, probably with a transient accumulation of carbon primarily stored in seeds as a response to elevated CO2.
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Affiliation(s)
- Janaina da Silva Fortirer
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil
| | - Adriana Grandis
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil
| | - Débora Pagliuso
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil
| | | | - Marcos Silveira Buckeridge
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil.
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26
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Sanchez-Lucas R, Mayoral C, Raw M, Mousouraki MA, Luna E. Elevated CO2 alters photosynthesis, growth and susceptibility to powdery mildew of oak seedlings. Biochem J 2023; 480:1429-1443. [PMID: 37497606 PMCID: PMC10586781 DOI: 10.1042/bcj20230002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 07/18/2023] [Accepted: 07/27/2023] [Indexed: 07/28/2023]
Abstract
Elevated CO2 (eCO2) is a determinant factor of climate change and is known to alter plant processes such as physiology, growth and resistance to pathogens. Quercus robur, a tree species integrated in most forest regeneration strategies, shows high vulnerability to powdery mildew (PM) disease at the seedling stage. PM is present in most oak forests and it is considered a bottleneck for oak woodland regeneration. Our study aims to decipher the effect of eCO2 on plant responses to PM. Oak seedlings were grown in controlled environment at ambient (aCO2, ∼400 ppm) and eCO2 (∼1000 ppm), and infected with Erysiphe alphitoides, the causal agent of oak PM. Plant growth, physiological parameters and disease progression were monitored. In addition, to evaluate the effect of eCO2 on induced resistance (IR), these parameters were assessed after treatments with IR elicitor β-aminobutyric acid (BABA). Our results show that eCO2 increases photosynthetic rates and aerial growth but in contrast, reduces root length. Importantly, under eCO2 seedlings were more susceptible to PM. Treatments with BABA protected seedlings against PM and this protection was maintained under eCO2. Moreover, irrespectively of the concentration of CO2, BABA did not significantly change aerial growth but resulted in longer radicular systems, thus mitigating the effect of eCO2 in root shortening. Our results demonstrate the impact of eCO2 in plant physiology, growth and defence, and warrant further biomolecular studies to unravel the mechanisms by which eCO2 increases oak seedling susceptibility to PM.
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Affiliation(s)
- Rosa Sanchez-Lucas
- Birmingham Institute of Forest Research, School of Biosciences, University of Birmingham, Birmingham B15 2TT, U.K
| | - Carolina Mayoral
- Birmingham Institute of Forest Research, School of Biosciences, University of Birmingham, Birmingham B15 2TT, U.K
| | - Mark Raw
- Birmingham Institute of Forest Research, School of Biosciences, University of Birmingham, Birmingham B15 2TT, U.K
| | - Maria-Anna Mousouraki
- Birmingham Institute of Forest Research, School of Biosciences, University of Birmingham, Birmingham B15 2TT, U.K
- School of Life Sciences, University of Warwick, Gibber Hill Campus, Coventry CV4 7AL, U.K
| | - Estrella Luna
- Birmingham Institute of Forest Research, School of Biosciences, University of Birmingham, Birmingham B15 2TT, U.K
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27
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Ozawa Y, Tanaka A, Suzuki T, Sugiura D. Sink-source imbalance triggers delayed photosynthetic induction: Transcriptomic and physiological evidence. PHYSIOLOGIA PLANTARUM 2023; 175:e14000. [PMID: 37882282 DOI: 10.1111/ppl.14000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 10/27/2023]
Abstract
Sink-source imbalance causes accumulation of nonstructural carbohydrates (NSCs) and photosynthetic downregulation. However, despite numerous studies, it remains unclear whether NSC accumulation or N deficiency more directly decreases steady-state maximum photosynthesis and photosynthetic induction, as well as underlying gene expression profiles. We evaluated the relationship between photosynthetic capacity and NSC accumulation induced by cold girdling, sucrose feeding, and low nitrogen treatment in Glycine max and Phaseolus vulgaris. In G. max, changes in transcriptome profiles were further investigated, focusing on the physiological processes of photosynthesis and NSC accumulation. NSC accumulation decreased the maximum photosynthetic capacity and delayed photosynthetic induction in both species. In G. max, such photosynthetic downregulation was explained by coordinated downregulation of photosynthetic genes involved in the Calvin cycle, Rubisco activase, photochemical reactions, and stomatal opening. Furthermore, sink-source imbalance may have triggered a change in the balance of sugar-phosphate translocators in chloroplast membranes, which may have promoted starch accumulation in chloroplasts. Our findings provide an overall picture of photosynthetic downregulation and NSC accumulation in G. max, demonstrating that photosynthetic downregulation is triggered by NSC accumulation and cannot be explained solely by N deficiency.
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Affiliation(s)
- Yui Ozawa
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Aiko Tanaka
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Takamasa Suzuki
- College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi, Japan
| | - Daisuke Sugiura
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
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28
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Dusenge ME, Warren JM, Reich PB, Ward EJ, Murphy BK, Stefanski A, Bermudez R, Cruz M, McLennan DA, King AW, Montgomery RA, Hanson PJ, Way DA. Boreal conifers maintain carbon uptake with warming despite failure to track optimal temperatures. Nat Commun 2023; 14:4667. [PMID: 37537190 PMCID: PMC10400668 DOI: 10.1038/s41467-023-40248-3] [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: 01/22/2023] [Accepted: 07/13/2023] [Indexed: 08/05/2023] Open
Abstract
Warming shifts the thermal optimum of net photosynthesis (ToptA) to higher temperatures. However, our knowledge of this shift is mainly derived from seedlings grown in greenhouses under ambient atmospheric carbon dioxide (CO2) conditions. It is unclear whether shifts in ToptA of field-grown trees will keep pace with the temperatures predicted for the 21st century under elevated atmospheric CO2 concentrations. Here, using a whole-ecosystem warming controlled experiment under either ambient or elevated CO2 levels, we show that ToptA of mature boreal conifers increased with warming. However, shifts in ToptA did not keep pace with warming as ToptA only increased by 0.26-0.35 °C per 1 °C of warming. Net photosynthetic rates estimated at the mean growth temperature increased with warming in elevated CO2 spruce, while remaining constant in ambient CO2 spruce and in both ambient CO2 and elevated CO2 tamarack with warming. Although shifts in ToptA of these two species are insufficient to keep pace with warming, these boreal conifers can thermally acclimate photosynthesis to maintain carbon uptake in future air temperatures.
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Affiliation(s)
- Mirindi Eric Dusenge
- Department of Biology, Mount Allison University, Sackville, NB, E4L 1E4, Canada.
- Western Centre for Climate Change, Sustainable Livelihoods and Health, Department of Geography and Environment, The University of Western Ontario, London, ON, N6G 2V4, Canada.
- Department of Biology, The University of Western Ontario, London, ON, N6A 3K7, Canada.
| | - Jeffrey M Warren
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Peter B Reich
- Department of Forest Resources, University of Minnesota, Saint Paul, MN, 55108, USA
- Hawkesbury Institute for the Environment, University of Western Sydney, Penrith, NSW, 2753, Australia
- Institute for Global Change Biology, and School for the Environment and Sustainability, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Eric J Ward
- US Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA, USA
| | - Bridget K Murphy
- Department of Biology, The University of Western Ontario, London, ON, N6A 3K7, Canada
- Department of Biology, University of Toronto Mississauga, Mississauga, ON, L5L 1C6, Canada
- Graduate Program in Cell and Systems Biology, University of Toronto, Toronto, ON, M5S 3B2, Canada
| | - Artur Stefanski
- Department of Forest Resources, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Raimundo Bermudez
- Department of Forest Resources, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Marisol Cruz
- Departamento de Ciencias Biologicas, Universidad de Los Andes, Bogota, Colombia
| | - David A McLennan
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Anthony W King
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Rebecca A Montgomery
- Department of Forest Resources, University of Minnesota, Saint Paul, MN, 55108, USA
| | - Paul J Hanson
- Climate Change Science Institute and Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - Danielle A Way
- Department of Biology, The University of Western Ontario, London, ON, N6A 3K7, Canada.
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia.
- Nicholas School of the Environment, Duke University, Durham, NC, 27708, USA.
- Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, NY, 11973, USA.
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29
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Bernacchi CJ, Ruiz-Vera UM, Siebers MH, DeLucia NJ, Ort DR. Short- and long-term warming events on photosynthetic physiology, growth, and yields of field grown crops. Biochem J 2023; 480:999-1014. [PMID: 37418286 PMCID: PMC10422931 DOI: 10.1042/bcj20220433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 07/08/2023]
Abstract
Global temperatures are rising from increasing concentrations of greenhouse gases in the atmosphere associated with anthropogenic activities. Global warming includes a warmer shift in mean temperatures as well as increases in the probability of extreme heating events, termed heat waves. Despite the ability of plants to cope with temporal variations in temperature, global warming is increasingly presenting challenges to agroecosystems. The impact of warming on crop species has direct consequences on food security, therefore understanding impacts and opportunities to adapt crops to global warming necessitates experimentation that allows for modification of growth environments to represent global warming scenarios. Published studies addressing crop responses to warming are extensive, however, in-field studies where growth temperature is manipulated to mimic global warming are limited. Here, we provide an overview of in-field heating techniques employed to understand crop responses to warmer growth environments. We then focus on key results associated with season-long warming, as expected with rising global mean temperatures, and with heat waves, as a consequence of increasing temperature variability and rising global mean temperatures. We then discuss the role of rising temperatures on atmospheric water vapor pressure deficit and potential implications for crop photosynthesis and productivity. Finally, we review strategies by which crop photosynthetic processes might be optimized to adapt crops to the increasing temperatures and frequencies of heat waves. Key findings from this review are that higher temperatures consistently reduce photosynthesis and yields of crops even as atmospheric carbon dioxide increases, yet potential strategies to minimize losses from high-temperature exist.
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Affiliation(s)
- Carl J. Bernacchi
- Global Change and Photosynthesis Research Unit, USDA-ARS, Urbana, IL, U.S.A
- Department of Plant Biology, University of Illinois Urbana-Champaign, Urbana, IL, U.S.A
- Carl R Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, U.S.A
| | | | - Matthew H. Siebers
- Global Change and Photosynthesis Research Unit, USDA-ARS, Urbana, IL, U.S.A
- Department of Plant Biology, University of Illinois Urbana-Champaign, Urbana, IL, U.S.A
| | - Nicholas J. DeLucia
- Global Change and Photosynthesis Research Unit, USDA-ARS, Urbana, IL, U.S.A
- Department of Plant Biology, University of Illinois Urbana-Champaign, Urbana, IL, U.S.A
| | - Donald R. Ort
- Department of Plant Biology, University of Illinois Urbana-Champaign, Urbana, IL, U.S.A
- Carl R Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, IL, U.S.A
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30
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Cui E, Xia J, Luo Y. Nitrogen use strategy drives interspecific differences in plant photosynthetic CO 2 acclimation. GLOBAL CHANGE BIOLOGY 2023; 29:3667-3677. [PMID: 37021662 DOI: 10.1111/gcb.16706] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 03/01/2023] [Accepted: 03/12/2023] [Indexed: 06/06/2023]
Abstract
Rising atmospheric CO2 concentration triggers an emergent phenomenon called plant photosynthetic acclimation to elevated CO2 (PAC). PAC is often characterized by a reduction in leaf photosynthetic capacity (Asat ), which varies dramatically along the continuum of plant phylogeny. However, it remains unclear whether the mechanisms responsible for PAC are also different across plant phylogeny, especially between gymnosperms and angiosperms. Here, by compiling a dataset of 73 species, we found that although leaf Asat increased significantly from gymnosperms to angiosperms, there was no phylogenetic signal in the PAC magnitude along the phylogenetic continuum. Physio-morphologically, leaf nitrogen concentration (Nm ), photosynthetic nitrogen-use efficiency (PNUE), and leaf mass per area (LMA) dominated PAC for 36, 29, and 8 species, respectively. However, there was no apparent difference in PAC mechanisms across major evolutionary clades, with 75% of gymnosperms and 92% of angiosperms regulated by the combination of Nm and PNUE. There was a trade-off between Nm and PNUE in driving PAC across species, and PNUE dominated the long-term changes and inter-specific differences in Asat under elevated CO2 . These findings indicate that nitrogen-use strategy drives the acclimation of leaf photosynthetic capacity to elevated CO2 across terrestrial plant species.
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Affiliation(s)
- Erqian Cui
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, Center for Global Change and Coastal Ecosystems, Institute of Eco-Chongming, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
| | - Jianyang Xia
- Zhejiang Tiantong Forest Ecosystem National Observation and Research Station, Center for Global Change and Coastal Ecosystems, Institute of Eco-Chongming, School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
| | - Yiqi Luo
- School of Integrative Plant Science, Cornell University, Ithaca, New York, USA
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Sun W, Fleisher D, Timlin D, Ray C, Wang Z, Beegum S, Reddy V. Projected long-term climate trends reveal the critical role of vapor pressure deficit for soybean yields in the US Midwest. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:162960. [PMID: 36958552 DOI: 10.1016/j.scitotenv.2023.162960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/23/2023] [Accepted: 03/16/2023] [Indexed: 05/13/2023]
Abstract
Extreme climate events including heat waves and droughts are projected to become more frequent under future climate change conditions. However, the mechanisms between soybean yields and climate factors, specifically involving variable rainfall and high heat episodes, are still unclear, particularly with respect to spatial trends in the United States (US) Midwest. A recently modified version of the model GLYCIM was used to evaluate rainfed soybean production across 12 states at a 10 km spatial resolution for three time periods (2011-2020, 2051-2060, 2091-2099) under Representative Concentration Pathway (RCP) scenarios 4.5 and 8.5. Results showed that except for the northernmost Midwest counties, most of the current rainfed cropping system in the Midwest would suffer a 24.6-47.4 % yield loss without considering the CO2 fertility effect. Incorporating the effect of elevated CO2 showed a smaller yield loss of 11.6-29.5 %. The increased frequency of extreme degree days (EDD) or accumulation of hourly temperatures above 30 °C associated with increased vapor pressure deficit (VPD) played a key role in contributing to water deficits and resultant crop losses under these future climate conditions. Although a relatively weak relationship between summer rainfall and crop yield was observed, decreased rainfall caused VPD to increase which induced crop water deficits. These findings suggest that it is crucial to consider VPD along with high temperature and low rainfall trends simultaneously for development of potential management or breeding-based adaptative strategies for soybean.
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Affiliation(s)
- Wenguang Sun
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA; Nebraska Water Center, University of Nebraska Lincoln, Lincoln, NE 68588-6204, USA.
| | - David Fleisher
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA.
| | - Dennis Timlin
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA
| | - Chittaranjan Ray
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA; Nebraska Water Center, University of Nebraska Lincoln, Lincoln, NE 68588-6204, USA
| | - Zhuangji Wang
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA; Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD 20742, USA
| | - Sahila Beegum
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA; Nebraska Water Center, University of Nebraska Lincoln, Lincoln, NE 68588-6204, USA
| | - Vangimalla Reddy
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD 20705, USA
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Ofori-Amanfo KK, Klem K, Veselá B, Holub P, Agyei T, Juráň S, Grace J, Marek MV, Urban O. The effect of elevated CO2 on photosynthesis is modulated by nitrogen supply and reduced water availability in Picea abies. TREE PHYSIOLOGY 2023; 43:925-937. [PMID: 36864576 DOI: 10.1093/treephys/tpad024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 02/22/2023] [Indexed: 06/11/2023]
Abstract
It is assumed that the stimulatory effects of elevated CO2 concentration ([CO2]) on photosynthesis and growth may be substantially reduced by co-occurring environmental factors and the length of CO2 treatment. Here, we present the study exploring the interactive effects of three manipulated factors ([CO2], nitrogen supply and water availability) on physiological (gas-exchange and chlorophyll fluorescence), morphological and stoichiometric traits of Norway spruce (Picea abies) saplings after 2 and 3 years of the treatment under natural field conditions. Such multifactorial studies, going beyond two-way interactions, have received only limited attention until now. Our findings imply a significant reduction of [CO2]-enhanced rate of CO2 assimilation under reduced water availability which deepens with the severity of water depletion. Similarly, insufficient nitrogen availability leads to a down-regulation of photosynthesis under elevated [CO2] being particularly associated with reduced carboxylation efficiency of the Rubisco enzyme. Such adjustments in the photosynthesis machinery result in the stimulation of water-use efficiency under elevated [CO2] only when it is combined with a high nitrogen supply and reduced water availability. These findings indicate limited effects of elevated [CO2] on carbon uptake in temperate coniferous forests when combined with naturally low nitrogen availability and intensifying droughts during the summer periods. Such interactions have to be incorporated into the mechanistic models predicting changes in terrestrial carbon sequestration and forest growth in the future.
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Affiliation(s)
- Kojo Kwakye Ofori-Amanfo
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
- Department of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1665/1, 613 00 Brno, Czech Republic
| | - Karel Klem
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
- Department of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1665/1, 613 00 Brno, Czech Republic
| | - Barbora Veselá
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
| | - Petr Holub
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
| | - Thomas Agyei
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
- Department of Agrosystems and Bioclimatology, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1665/1, 613 00 Brno, Czech Republic
- Department of Biological Science, School of Sciences, University of Energy and Natural Resources, Post Office Box 214, Sunyani, Ghana
| | - Stanislav Juráň
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
| | - John Grace
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
- School of GeoSciences, University of Edinburgh, Crew Bldg, Kings Bldgs, Alexander Crum Brown Rd, Edinburgh EH9 3FF, UK
| | - Michal V Marek
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
- Institute of Management, Slovak Technical University Bratislava, Vazovova 5, 812 43 Bratislava, Slovakia
| | - Otmar Urban
- Global Change Research Institute, Czech Academy of Sciences, Bělidla 986/4a, 603 00 Brno, Czech Republic
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Yang Y, Liu H, Wu J, Zhang S, Gao C, Zhang S, Tang DWS. Soil enzyme activities, soil physical properties, photosynthetic physical characteristics and water use of winter wheat after long-term straw mulch and organic fertilizer application. FRONTIERS IN PLANT SCIENCE 2023; 14:1186376. [PMID: 37324681 PMCID: PMC10265643 DOI: 10.3389/fpls.2023.1186376] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/27/2023] [Indexed: 06/17/2023]
Abstract
Introduction Inappropriate residue and nutrient management leads to soil degradation and the decline of soil quality and water storage capacity. Methods An ongoing field experiment has been conducted since 2011 to investigate the effects of straw mulching (SM), and straw mulching combined with organic fertilizer (SM+O), on winter wheat yield, including a control treatment (CK, no straw). We studied the effects of these treatments on soil microbial biomass nitrogen and carbon, soil enzyme activity in 2019, photosynthetic parameters, evapotranspiration (ET), water use efficiency (WUE), and yields over five consecutive years (2015-2019). We also analyzed the soil organic carbon, soil structure, field capacity, and saturated hydraulic conductivity in 2015 and 2019. Results Results indicate that compared with CK, SM and SM+O treatments increased the proportion of >0.25mm aggregates, soil organic carbon, field capacity, and saturated hydraulic conductivity, but decreased the soil bulk density. In addition, the SM and SM+O treatments also increased soil microbial biomass nitrogen and carbon, the activity of soil enzymes, and decreased the carbon-nitrogen ratio of microbial biomass. Therefore, SM and SM+O treatments both increased the leaf water use efficiency (LWUE) and photosynthetic rate (Pn), and improved the yields and water use efficiency (WUE) of winter wheat. The combination SM (4.5 t/ha)+O (0.75 t/ha) was more effective than SM alone, and both treatments were superior to the control. Conclusion Based on the results of this study, SM+O is recommended as the most effective cultivation practice.
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Affiliation(s)
- Yonghui Yang
- Institute of Plant Nutrition & Resource Environment, Henan Academy of Agricultural Sciences, Zhengzhou, China
- International Joint Research Laboratory for Global Change Ecology, School of Life Sciences, Henan University, Kaifeng, Henan, China
- Yuanyang Experimental Station of Crop Water Use, Ministry of Agriculture, Yuanyang, China
- Field Scientific Observation and Research Station of Water Saving Agriculture in the Yellow River Basin of Henan Province, Yuanyang, China
| | - Hao Liu
- International Joint Research Laboratory for Global Change Ecology, School of Life Sciences, Henan University, Kaifeng, Henan, China
| | - Jicheng Wu
- Institute of Plant Nutrition & Resource Environment, Henan Academy of Agricultural Sciences, Zhengzhou, China
- Yuanyang Experimental Station of Crop Water Use, Ministry of Agriculture, Yuanyang, China
- Field Scientific Observation and Research Station of Water Saving Agriculture in the Yellow River Basin of Henan Province, Yuanyang, China
| | - Sensen Zhang
- Henan Provincial Institute of Geology, Zhengzhou, China
| | - Cuimin Gao
- Institute of Plant Nutrition & Resource Environment, Henan Academy of Agricultural Sciences, Zhengzhou, China
- Yuanyang Experimental Station of Crop Water Use, Ministry of Agriculture, Yuanyang, China
- Field Scientific Observation and Research Station of Water Saving Agriculture in the Yellow River Basin of Henan Province, Yuanyang, China
| | - Shuiqing Zhang
- Institute of Plant Nutrition & Resource Environment, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Darrell W. S. Tang
- Soil Physics and Land Management Group, Wageningen University & Research, Wageningen, Netherlands
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He Y, Matthews ML. Seasonal climate conditions impact the effectiveness of improving photosynthesis to increase soybean yield. FIELD CROPS RESEARCH 2023; 296:108907. [PMID: 37193044 PMCID: PMC10155077 DOI: 10.1016/j.fcr.2023.108907] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/31/2023] [Accepted: 03/22/2023] [Indexed: 05/18/2023]
Abstract
Context Photosynthetic stimulations have shown promising outcomes in improving crop photosynthesis, including soybean. However, it is still unclear to what extent these changes can impact photosynthetic assimilation and yield under long-term field climate conditions. Objective In this paper, we present a systematic evaluation of the response of canopy photosynthesis and yield to two critical parameters in leaf photosynthesis: the maximum carboxylation rate of ribulose-1,5-bisphosphate carboxylase/oxygenase (Vcmax) and the maximum electron transport of the ribulose-1,5-bisphosphate regeneration rate (Jmax). Methods Using the field-scale crop model Soybean-BioCro and ten years of observed climate data in Urbana, Illinois, U.S., we conducted sensitivity experiments to estimate the changes in canopy photosynthesis, leaf area index, and biomass due to the changes in Vcmax and Jmax. Results The results show that 1) Both the canopy photosynthetic assimilation (An) and pod biomass yields were more sensitive to the changes in Jmax, particularly at high atmospheric carbon-dioxide concentrations ([CO2]); 2) Higher [CO2] undermined the effectiveness of increasing the two parameters to improve An and yield; 3) Under the same [CO2], canopy light interception and canopy respiration were key factors that undermined improvements in An and yield; 4) A canopy with smaller leaf area index tended to have a higher yield improvement, and 5) Increases in assimilations and yields were highly dependent on growing-season climatic conditions. The solar radiation, temperature, and relative humidity were the main climate drivers that impacted the yield improvement, and they had opposite correlations with improved yield during the vegetative phase compared to the reproductive phase. Conclusions In a world with elevated [CO2], genetic engineering crop photosynthesis should focus more on improving Jmax. Further, long-term climate conditions and seasonal variations must be considered to determine the improvements in soybean canopy photosynthesis and yield at the field scale. Implications Quantifying the effectiveness of changing Vcmax and Jmax helps understand their individual and combined contributions to potential improvements in assimilation and yield. This work provides a framework for evaluating how altering the photosynthetic rate parameters impacts soybean yield and assimilation under different seasonal climate scenarios at the field scale.
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Affiliation(s)
- Yufeng He
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL 61801, USA
| | - Megan L. Matthews
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL 61801, USA
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, IL 61801, USA
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Beegum S, Timlin D, Reddy KR, Reddy V, Sun W, Wang Z, Fleisher D, Ray C. Improving the cotton simulation model, GOSSYM, for soil, photosynthesis, and transpiration processes. Sci Rep 2023; 13:7314. [PMID: 37147386 PMCID: PMC10163017 DOI: 10.1038/s41598-023-34378-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/28/2023] [Indexed: 05/07/2023] Open
Abstract
GOSSYM, a mechanistic, process-level cotton crop simulation model, has a two-dimensional (2D) gridded soil model called Rhizos that simulates the below-ground processes daily. Water movement is based on gradients of water content and not hydraulic heads. In GOSSYM, photosynthesis is calculated using a daily empirical light response function that requires calibration for response to elevated carbon dioxide (CO2). This report discusses improvements made to the GOSSYM model for soil, photosynthesis, and transpiration processes. GOSSYM's predictions of below-ground processes using Rhizos are improved by replacing it with 2DSOIL, a mechanistic 2D finite element soil process model. The photosynthesis and transpiration model in GOSSYM is replaced with a Farquhar biochemical model and Ball-Berry leaf energy balance model. The newly developed model (modified GOSSYM) is evaluated using field-scale and experimental data from SPAR (soil-plant-atmosphere-research) chambers. Modified GOSSYM better predicted net photosynthesis (root mean square error (RMSE) 25.5 versus 45.2 g CO2 m-2 day-1; index of agreement (IA) 0.89 versus 0.76) and transpiration (RMSE 3.3 versus 13.7 L m-2 day-1; IA 0.92 versus 0.14) and improved the yield prediction by 6.0%. Modified GOSSYM improved the simulation of soil, photosynthesis, and transpiration processes, thereby improving the predictive ability of cotton crop growth and development.
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Affiliation(s)
- Sahila Beegum
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD, 20705, USA.
- Nebraska Water Center, Robert B. Daugherty Water for Food Global Institute, 2021 Transformation Drive, University of Nebraska, Lincoln, NE, 68588, USA.
| | - Dennis Timlin
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
| | - Kambham Raja Reddy
- Department of Plant and Soil Sciences, Mississippi State University, Mississippi, MS, 39762, USA
| | - Vangimalla Reddy
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
| | - Wenguang Sun
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
- Nebraska Water Center, Robert B. Daugherty Water for Food Global Institute, 2021 Transformation Drive, University of Nebraska, Lincoln, NE, 68588, USA
| | - Zhuangji Wang
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
- Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, 20742, USA
| | - David Fleisher
- Adaptive Cropping System Laboratory, USDA-ARS, Beltsville, MD, 20705, USA
| | - Chittaranjan Ray
- Nebraska Water Center, Robert B. Daugherty Water for Food Global Institute, 2021 Transformation Drive, University of Nebraska, Lincoln, NE, 68588, USA
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Takai T, Taniguchi Y, Takahashi M, Nagasaki H, Yamamoto E, Hirose S, Hara N, Akashi H, Ito J, Arai-Sanoh Y, Hori K, Fukuoka S, Sakai H, Tokida T, Usui Y, Nakamura H, Kawamura K, Asai H, Ishizaki T, Maruyama K, Mochida K, Kobayashi N, Kondo M, Tsuji H, Tsujimoto Y, Hasegawa T, Uga Y. MORE PANICLES 3, a natural allele of OsTB1/FC1, impacts rice yield in paddy fields at elevated CO 2 levels. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:729-742. [PMID: 36974032 DOI: 10.1111/tpj.16143] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 02/06/2023] [Indexed: 05/27/2023]
Abstract
Improving crop yield potential through an enhanced response to rising atmospheric CO2 levels is an effective strategy for sustainable crop production in the face of climate change. Large-sized panicles (containing many spikelets per panicle) have been a recent ideal plant architecture (IPA) for high-yield rice breeding. However, few breeding programs have proposed an IPA under the projected climate change. Here, we demonstrate through the cloning of the rice (Oryza sativa) quantitative trait locus for MORE PANICLES 3 (MP3) that the improvement in panicle number increases grain yield at elevated atmospheric CO2 levels. MP3 is a natural allele of OsTB1/FC1, previously reported as a negative regulator of tiller bud outgrowth. The temperate japonica allele advanced the developmental process in axillary buds, moderately promoted tillering, and increased the panicle number without negative effects on the panicle size or culm thickness in a high-yielding indica cultivar with large-sized panicles. The MP3 allele, containing three exonic polymorphisms, was observed in most accessions in the temperate japonica subgroups but was rarely observed in the indica subgroup. No selective sweep at MP3 in either the temperate japonica or indica subgroups suggested that MP3 has not been involved and utilized in artificial selection during domestication or breeding. A free-air CO2 enrichment experiment revealed a clear increase of grain yield associated with the temperate japonica allele at elevated atmospheric CO2 levels. Our findings show that the moderately increased panicle number combined with large-sized panicles using MP3 could be a novel IPA and contribute to an increase in rice production under climate change with rising atmospheric CO2 levels.
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Affiliation(s)
- Toshiyuki Takai
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Yojiro Taniguchi
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan
| | - Megumu Takahashi
- Institute of Vegetable and Floriculture Science, NARO, Tsukuba, Ibaraki, 305-8519, Japan
| | - Hideki Nagasaki
- Kazusa DNA Research Institute, Kisarazu, Chiba, 292-0818, Japan
| | - Eiji Yamamoto
- Meiji University, Kawasaki, Kanagawa, 214-8571, Japan
| | - Sakiko Hirose
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan
| | - Naho Hara
- Institute of Agrobiological Sciences, NARO, Tsukuba, Ibaraki, 305-8634, Japan
| | - Hiroko Akashi
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
| | - Jun Ito
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
| | - Yumiko Arai-Sanoh
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Kiyosumi Hori
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Shuichi Fukuoka
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Hidemitsu Sakai
- Institute for Agro-Environmental Sciences, NARO, Tsukuba, Ibaraki, 305-8604, Japan
| | - Takeshi Tokida
- Institute for Agro-Environmental Sciences, NARO, Tsukuba, Ibaraki, 305-8604, Japan
| | - Yasuhiro Usui
- Central Region Agricultural Research Center, NARO, Tsukuba, Ibaraki, 305-8666, Japan
| | | | - Kensuke Kawamura
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Hidetoshi Asai
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Takuma Ishizaki
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Kyonoshin Maruyama
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Keiichi Mochida
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, 230-0045, Japan
- School of Information and Data Sciences, Nagasaki University, Nagasaki, Nagasaki, 852-8521, Japan
| | - Nobuya Kobayashi
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
| | - Motohiko Kondo
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Aichi, 464-8601, Japan
| | - Hiroyuki Tsuji
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, 244-0813, Japan
- Bioscience and Biotechnology Center, Nagoya University, Nagoya, Aichi, 464-8601, Japan
| | - Yasuhiro Tsujimoto
- Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, Ibaraki, 305-8686, Japan
| | - Toshihiro Hasegawa
- Institute for Agro-Environmental Sciences, NARO, Tsukuba, Ibaraki, 305-8604, Japan
| | - Yusaku Uga
- Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, 305-8518, Japan
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Zhou H, Kang S, Génard M, Vercambre G, Chen J. Integrated model simulates bigger, sweeter tomatoes under changing climate under reduced nitrogen and water input. HORTICULTURE RESEARCH 2023; 10:uhad045. [PMID: 37200840 PMCID: PMC10186270 DOI: 10.1093/hr/uhad045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/05/2023] [Indexed: 05/20/2023]
Abstract
When simulating the response of fruit growth and quality to environmental factors and cultivation practices, the interactions between the mother plant and fruit need to be considered as a whole system. Here, we developed the integrative Tomato plant and fruit Growth and Fruit Sugar metabolism (TGFS) model by coupling equations describing the biophysical processes of leaf gas exchange, water transport, carbon allocation, organ growth and fruit sugar metabolism. The model also accounts for effects of soil nitrogen and atmospheric CO2 concentration on gaseous exchange of water and carbon by the leaf. With different nitrogen and water input values, TGFS performed well at simulating the dry mass of the tomato leaf, stem, root, and fruit, and the concentrations of soluble sugar and starch in fruit. TGFS simulations showed that increasing air temperature and CO2 concentration has positive effects on fruit growth, but not on sugar concentrations. Further model-based analyses of cultivation scenarios suggest that, in the context of climate change, decreasing N by 15%-25% and decreasing irrigation by 10%-20% relative to current levels would increase tomato fresh weight by 27.8%-36.4% while increasing soluble sugar concentration by up to 10%. TGFS provides a promising tool to optimise N and water inputs for sustainable high-quality tomatoes.
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Affiliation(s)
- Huiping Zhou
- Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China
- National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province, Wuwei 733009, China
| | - Shaozhong Kang
- Center for Agricultural Water Research in China, China Agricultural University, Beijing 100083, China
- National Field Scientific Observation and Research Station on Efficient Water Use of Oasis Agriculture in Wuwei of Gansu Province, Wuwei 733009, China
| | - Michel Génard
- INRAE, UR 1115 Plantes et Systèmes de Culture Horticoles, Avignon Cedex 9 F-84914, France
| | - Gilles Vercambre
- INRAE, UR 1115 Plantes et Systèmes de Culture Horticoles, Avignon Cedex 9 F-84914, France
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Bellido E, de la Haba P, Agüera E. Responses in Nodulated Bean ( Phaseolus vulgaris L.) Plants Grown at Elevated Atmospheric CO 2. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091828. [PMID: 37176886 PMCID: PMC10180886 DOI: 10.3390/plants12091828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
The increase in the concentration of CO2 in the atmosphere is currently causing metabolomic and physiological changes in living beings and especially in plants. Future climate change may affect crop productivity by limiting the uptake of soil resources such as nitrogen (N) and water. The contribution of legume-rhizobia symbioses to N2 fixation increases the available biological N reserve. Elevated CO2 (eCO2) has been shown to enhance the amount of fixed N2 primarily by increasing biomass. Greater leaf biomass under eCO2 levels increases N demand, which can stimulate and increase N2 fixation. For this reason, bean plants (Phaseolus vulgaris L.) were used in this work to investigate how, in a CO2-enriched atmosphere, inoculation with rhizobia (Rhizobium leguminosarum) affects different growth parameters and metabolites of carbon and nitrogen metabolism, as well as enzymatic activities of nitrogen metabolism and the oxidative state of the plant, with a view to future scenarios, where the concentration of CO2 in the atmosphere will increase. The results showed that bean symbiosis with R. leguminosarum improved N2 fixation, while also decreasing the plant's oxidative stress, and provided the plant with a greater defense system against eCO2 conditions. In conclusion, the nodulation with rhizobia potentially replaced the chemical fertilization of bean plants (P. vulgaris L.), resulting in more environmentally friendly agricultural practices. However, further optimization of symbiotic activities is needed to improve the efficiency and to also develop strategies to improve the response of legume yields to eCO2, particularly due to the climate change scenario in which there is predicted to be a large increase in the atmospheric CO2 concentration.
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Affiliation(s)
- Enrique Bellido
- Department of Botany, Ecology and Plant Physiology, Faculty of Science, University of Córdoba, 14071 Córdoba, Spain
| | - Purificación de la Haba
- Department of Botany, Ecology and Plant Physiology, Faculty of Science, University of Córdoba, 14071 Córdoba, Spain
| | - Eloísa Agüera
- Department of Botany, Ecology and Plant Physiology, Faculty of Science, University of Córdoba, 14071 Córdoba, Spain
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De Souza AP. Dynamic responses of carbon assimilation and stomatal conductance in the future climate. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:2790-2793. [PMID: 37103002 DOI: 10.1093/jxb/erad049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This article comments on:
Wall S, Cockram J, Vialet-Chabrand S, Van Rie J, Galle A, Lawson T. 2023. The impact of growth at elevated [CO2] on stomatal anatomy and behavior differs between wheat species and cultivars. Journal of Experimental Botany 74, 2860–2874
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Affiliation(s)
- Amanda P De Souza
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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Wall S, Cockram J, Vialet-Chabrand S, Van Rie J, Gallé A, Lawson T. The impact of growth at elevated [CO2] on stomatal anatomy and behavior differs between wheat species and cultivars. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:2860-2874. [PMID: 36633860 PMCID: PMC10134898 DOI: 10.1093/jxb/erad011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/11/2023] [Indexed: 06/06/2023]
Abstract
The ability of plants to respond to changes in the environment is crucial to their survival and reproductive success. The impact of increasing the atmospheric CO2 concentration (a[CO2]), mediated by behavioral and developmental responses of stomata, on crop performance remains a concern under all climate change scenarios, with potential impacts on future food security. To identify possible beneficial traits that could be exploited for future breeding, phenotypic variation in morphological traits including stomatal size and density, as well as physiological responses and, critically, the effect of growth [CO2] on these traits, was assessed in six wheat relative accessions (including Aegilops tauschii, Triticum turgidum ssp. Dicoccoides, and T. turgidum ssp. dicoccon) and five elite bread wheat T. aestivum cultivars. Exploiting a range of different species and ploidy, we identified key differences in photosynthetic capacity between elite hexaploid wheat and wheat relatives. We also report differences in the speed of stomatal responses which were found to be faster in wheat relatives than in elite cultivars, a trait that could be useful for enhanced photosynthetic carbon gain and water use efficiency. Furthermore, these traits do not all appear to be influenced by elevated [CO2], and determining the underlying genetics will be critical for future breeding programmes.
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Affiliation(s)
- Shellie Wall
- School of Life Sciences, University of Essex, Colchester CO4 3SQ, UK
| | - James Cockram
- NIAB, 93 Lawrence Weaver Road, Cambridge CB3 0LE, UK
| | | | - Jeroen Van Rie
- BASF Belgium Coordination Center CommV-Innovation Center Gent, Technologiepark-Zwijnaarde 101, 9052 Gent, Belgium
| | - Alexander Gallé
- BASF Belgium Coordination Center CommV-Innovation Center Gent, Technologiepark-Zwijnaarde 101, 9052 Gent, Belgium
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Yang K, Huang Y, Yang J, Lv C, Hu Z, Yu L, Sun W. Effects of three patterns of elevated CO2 in single and multiple generations on photosynthesis and stomatal features in rice. ANNALS OF BOTANY 2023; 131:463-473. [PMID: 36708194 PMCID: PMC10072110 DOI: 10.1093/aob/mcad021] [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: 12/19/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND AND AIMS Effects of elevated CO2 (E) within a generation on photosynthesis and stomatal features have been well documented in crops; however, long-term responses to gradually elevated CO2 (Eg) and abruptly elevated CO2 (Ea) over multiple generations remain scarce. METHODS Japonica rice plants grown in open-top chambers were tested in the first generation (F1) under Ea and in the fifth generation (F5) under Eg and Ea, as follows: Ea in F1: ambient CO2 (A) + 200 μmol mol-1; Eg in F5: an increase of A + 40 μmol mol-1 year-1 until A + 200 μmol mol-1 from 2016 to 2020; Ea in F5: A + 200 μmol mol-1 from 2016 to 2020. For multigenerational tests, the harvested seeds were grown continuously in the following year in the respective CO2 environments. KEY RESULTS The responses to Ea in F1 were consistent with the previous consensus, such as the occurrence of photosynthetic acclimation, stimulation of photosynthesis, and downregulation of photosynthetic physiological parameters and stomatal area. In contrast, multigenerational exposure to both Eg and Ea did not induce photosynthetic acclimation, but stimulated greater photosynthesis and had little effect on the photosynthetic physiology and stomatal traits. This suggests that E retained intergenerational effects on photosynthesis and stomatal features and that there were no multigenerational differences in the effects of Eg and Ea. CONCLUSIONS The present study demonstrated that projecting future changes induced by E based on the physiological responses of contemporary plants could be misleading. Thus, responses of plants to large and rapid environmental changes within a generation cannot predict the long-term response of plants to natural environmental changes over multiple generations, especially in annual herbs with short life cycles.
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Affiliation(s)
- Kai Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yao Huang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jingrui Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Chunhua Lv
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Zhenghua Hu
- Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing, China
| | - Lingfei Yu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Wenjuan Sun
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China
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de Souza AH, de Oliveira US, Oliveira LA, de Carvalho PHN, de Andrade MT, Pereira TS, Gomes Junior CC, Cardoso AA, Ramalho JDC, Martins SCV, DaMatta FM. Growth and Leaf Gas Exchange Upregulation by Elevated [CO 2] Is Light Dependent in Coffee Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:1479. [PMID: 37050105 PMCID: PMC10097104 DOI: 10.3390/plants12071479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 06/19/2023]
Abstract
Coffee (Coffea arabica L.) plants have been assorted as highly suitable to growth at elevated [CO2] (eCa), although such suitability is hypothesized to decrease under severe shade. We herein examined how the combination of eCa and contrasting irradiance affects growth and photosynthetic performance. Coffee plants were grown in open-top chambers under relatively high light (HL) or low light (LL) (9 or 1 mol photons m-2 day-1, respectively), and aCa or eCa (437 or 705 μmol mol-1, respectively). Most traits were affected by light and CO2, and by their interaction. Relative to aCa, our main findings were (i) a greater stomatal conductance (gs) (only at HL) with decreased diffusive limitations to photosynthesis, (ii) greater gs during HL-to-LL transitions, whereas gs was unresponsive to the LL-to-HL transitions irrespective of [CO2], (iii) greater leaf nitrogen pools (only at HL) and higher photosynthetic nitrogen-use efficiency irrespective of light, (iv) lack of photosynthetic acclimation, and (v) greater biomass partitioning to roots and earlier branching. In summary, eCa improved plant growth and photosynthetic performance. Our novel and timely findings suggest that coffee plants are highly suited for a changing climate characterized by a progressive elevation of [CO2], especially if the light is nonlimiting.
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Affiliation(s)
- Antonio H. de Souza
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Ueliton S. de Oliveira
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Leonardo A. Oliveira
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Pablo H. N. de Carvalho
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Moab T. de Andrade
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Talitha S. Pereira
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Carlos C. Gomes Junior
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Amanda A. Cardoso
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USA
| | - José D. C. Ramalho
- PlantStress & Biodiversity Lab., Centro de Estudos Florestais (CEF), Laboratório Associado Terra, Departamento de Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Av. da República, 2784-505 Oeiras, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), Monte de Caparica, 2829-516 Caparica, Portugal
| | - Samuel C. V. Martins
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Fábio M. DaMatta
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
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Wang J, Shi X, Lucas-Borja ME, Guo Q, Mao J, Tan Y, Zhang G. Soil nematode abundances drive agroecosystem multifunctionality under short-term elevated CO 2 and O 3. GLOBAL CHANGE BIOLOGY 2023; 29:1618-1627. [PMID: 36458513 DOI: 10.1111/gcb.16546] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 05/28/2023]
Abstract
The response of soil biotas to climate change has the potential to regulate multiple ecosystem functions. However, it is still challenging to accurately predict how multiple climate change factors will affect multiple ecosystem functions. Here, we assessed the short-term responses of agroecosystem multifunctionality to a factorial combination of elevated CO2 (+200 ppm) and O3 (+40 ppb) and identified the key soil biotas (i.e., bacteria, fungi, protists, and nematodes) concerning the changes in the multiple ecosystem functions for two rice varieties (Japonica, Nanjing 5055 vs. Wuyujing 3). We provided strong evidence that combined treatment rather than individual treatments of short-term elevated CO2 and O3 significantly increased the agroecosystem multifunctionality index by 32.3% in the Wuyujing 3 variety, but not in the Nanjing 5055 variety. Soil biotas exhibited an important role in regulating multifunctionality under short-term elevated CO2 and O3 , with soil nematode abundances better explaining the changes in ecosystem multifunctionality than soil biota diversity. Furthermore, the higher trophic groups of nematodes, omnivores-predators served as the principal predictor of agroecosystem multifunctionality. These results provide unprecedented new evidence that short-term elevated CO2 and O3 can potentially affect agroecosystem multifunctionality through soil nematode abundances, especially omnivores-predators. Our study demonstrates that high trophic groups were specifically beneficial for regulating multiple ecosystem functions and highlights the importance of soil nematode communities for the maintenance of agroecosystem functions and health under climate change in the future.
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Affiliation(s)
- Jianqing Wang
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Xiuzhen Shi
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Manuel Esteban Lucas-Borja
- Higher Technical School of Agricultural and Forestry Engineering, Castilla-La Mancha University, Albacete, Spain
| | - Qiling Guo
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Jiaoyan Mao
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Yunyan Tan
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Guoyou Zhang
- Key Laboratory of Agrometeorology of Jiangsu Province, School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, China
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Das S, Kalita P, Acharjee S, Nath AJ, Gogoi B, Pal S, Das R. Combinatorial impacts of elevated CO 2 and temperature affect growth, development, and fruit yield in Capsicum chinense Jacq. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:393-407. [PMID: 37033763 PMCID: PMC10073385 DOI: 10.1007/s12298-023-01294-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 01/27/2023] [Accepted: 02/24/2023] [Indexed: 06/19/2023]
Abstract
Hot chilli ('Bhut Jolokia') (Capsicum chinense Jacq.) is the hottest chilli widely grown in the North-Eastern region of India for its high pungency. However, little information is available on its physiology, growth and developmental parameters including yield. Therefore, the present research was undertaken to study the physiological responses of Bhut Jolokia under elevated CO2 (eCO2) and temperature. Two germplasms from two different agro-climatic zones (Assam and Manipur) within the North-East region of India were collected based on the pungency. The present study explored the interactive effect of eCO2 [at 380, 550, 750 ppm (parts per million)] and temperature (at ambient, > 2 °C above ambient, and > 4 °C above ambient) on various physiological processes, and expression of some photosynthesis and capsaicin related genes in both the germplasms. Results revealed an increase (> 1-2 fold) in the net photosynthetic rate (Pn), carbohydrate content, and C: N ratio in 'Bhut Jolokia' under eCO2 and elevated temperature regimes compared to ambient conditions within the germplasms. Gene expression studies revealed an up-regulation of photosynthesis-related genes such as Cs RuBPC2 (Ribulose biphosphate carboxylase 2) and Cs SPS (Sucrose phosphate synthase) which, explained the higher Pn under eCO2 and temperature conditions. Both the germplasm showed better performance under CTGT-II (Carbon dioxide Temperature Gradient Tunnel having 550 ppm CO2 and temperature of 2 °C above ambient) in terms of various physiological parameters and up-regulation of key photosynthesis-related genes. An up-regulation of the Cs capsaicin synthase gene was also evident in the study, which could be due to the metabolite readjustment in 'Bhut Jolokia'. In addition, the cultivar from Manipur (cv. 1) had less fruit drop compared to the cultivar from Assam (cv. 2) in CTGT II. The data indicated that 550 ppm of eCO2 and temperature elevation of > 2 °C above the ambient with CTGT-II favored the growth and development of 'Bhut Jolokia'. Thus, results suggest that Bhut Jolokia grown under the elevation of CO2 up to 550 ppm and temperature above 2 °C than ambient may support the growth, development, and yield. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01294-9.
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Affiliation(s)
- Sangita Das
- Department of Crop Physiology, Assam Agricultural University, Jorhat, Assam 785013 India
| | - Prakash Kalita
- Department of Crop Physiology, Assam Agricultural University, Jorhat, Assam 785013 India
| | - Sumita Acharjee
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, Assam 785013 India
| | - Arun Jyoti Nath
- Department of Environmental Science, Assam University, Silchar, Assam 788011 India
| | - Bhabesh Gogoi
- Department of Soil Sciences, Assam Agricultural University, Jorhat, Assam 785013 India
| | - Sikander Pal
- Plant Physiology Laboratory, Department of Botany, University of Jammu, Jammu, 180006 India
| | - Ranjan Das
- Department of Crop Physiology, Assam Agricultural University, Jorhat, Assam 785013 India
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AbdElgawad H, Zinta G, Hornbacher J, Papenbrock J, Markakis MN, Asard H, Beemster GTS. Elevated CO 2 mitigates the impact of drought stress by upregulating glucosinolate metabolism in Arabidopsis thaliana. PLANT, CELL & ENVIRONMENT 2023; 46:812-830. [PMID: 36541032 DOI: 10.1111/pce.14521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Elevated CO2 (eCO2 ) reduces the impact of drought, but the mechanisms underlying this effect remain unclear. Therefore, we used a multidisciplinary approach to investigate the interaction of drought and eCO2 in Arabidopsis thaliana leaves. Transcriptome and subsequent metabolite analyses identified a strong induction of the aliphatic glucosinolate (GL) biosynthesis as a main effect of eCO2 in drought-stressed leaves. Transcriptome results highlighted the upregulation of ABI5 and downregulation of WRKY63 transcription factors (TF), known to enhance and inhibit the expression of genes regulating aliphatic GL biosynthesis (e.g., MYB28 and 29 TFs), respectively. In addition, eCO2 positively regulated aliphatic GL biosynthesis by MYB28/29 and increasing the accumulation of GL precursors. To test the role of GLs in the stress-mitigating effect of eCO2 , we investigated the effect of genetic perturbations of the GL biosynthesis. Overexpression of MYB28, 29 and 76 improved drought tolerance by inducing stomatal closure and maintaining plant turgor, whereas loss of cyp79f genes reduced the stress-mitigating effect of eCO2 and decreased drought tolerance. Overall, the crucial role of GL metabolism in drought stress mitigation by eCO2 could be a beneficial trait to overcome future climate challenges.
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Affiliation(s)
- Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
- Department of Botany and Microbiology, Science Faculty, Beni-Suef University, Beni-Suef, Egypt
| | - Gaurav Zinta
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology (IHBT), Palampur, India
- Academy of Scientific and Innovative Research (AcSIR), Uttar Pradesh, Ghaziabad, India
| | | | - Jutta Papenbrock
- Institute of Botany, Leibniz University Hannove, Hannover, Germany
| | - Marios N Markakis
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Han Asard
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
| | - Gerrit T S Beemster
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium
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Marques I, Fernandes I, Paulo OS, Batista D, Lidon FC, Partelli F, DaMatta FM, Ribeiro-Barros AI, Ramalho JC. Overexpression of Water-Responsive Genes Promoted by Elevated CO 2 Reduces ROS and Enhances Drought Tolerance in Coffea Species. Int J Mol Sci 2023; 24:ijms24043210. [PMID: 36834624 PMCID: PMC9966387 DOI: 10.3390/ijms24043210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/23/2023] [Accepted: 01/29/2023] [Indexed: 02/10/2023] Open
Abstract
Drought is a major constraint to plant growth and productivity worldwide and will aggravate as water availability becomes scarcer. Although elevated air [CO2] might mitigate some of these effects in plants, the mechanisms underlying the involved responses are poorly understood in woody economically important crops such as Coffea. This study analyzed transcriptome changes in Coffea canephora cv. CL153 and C. arabica cv. Icatu exposed to moderate (MWD) or severe water deficits (SWD) and grown under ambient (aCO2) or elevated (eCO2) air [CO2]. We found that changes in expression levels and regulatory pathways were barely affected by MWD, while the SWD condition led to a down-regulation of most differentially expressed genes (DEGs). eCO2 attenuated the impacts of drought in the transcripts of both genotypes but mostly in Icatu, in agreement with physiological and metabolic studies. A predominance of protective and reactive oxygen species (ROS)-scavenging-related genes, directly or indirectly associated with ABA signaling pathways, was found in Coffea responses, including genes involved in water deprivation and desiccation, such as protein phosphatases in Icatu, and aspartic proteases and dehydrins in CL153, whose expression was validated by qRT-PCR. The existence of a complex post-transcriptional regulatory mechanism appears to occur in Coffea explaining some apparent discrepancies between transcriptomic, proteomic, and physiological data in these genotypes.
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Affiliation(s)
- Isabel Marques
- Plant-Environment Interactions and Biodiversity Lab (PlantStress & Biodiversity), Forest Research Centre (CEF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
- Associate Laboratory TERRA, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
| | - Isabel Fernandes
- cE3c—Center for Ecology, Evolution and Environmental Changes and CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Octávio S. Paulo
- cE3c—Center for Ecology, Evolution and Environmental Changes and CHANGE—Global Change and Sustainability Institute, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Dora Batista
- Associate Laboratory TERRA, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
- Linking Landscape, Environment, Agriculture and Food (LEAF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
| | - Fernando C. Lidon
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), 2829-516 Caparica, Portugal
| | - Fábio Partelli
- Centro Universitário do Norte do Espírito Santo (CEUNES), Departmento Ciências Agrárias e Biológicas (DCAB), Universidade Federal Espírito Santo (UFES), São Mateus 29932-540, ES, Brazil
| | - Fábio M. DaMatta
- Departamento de Biologia Vegetal, Universidade Federal Viçosa (UFV), Viçosa 36570-900, MG, Brazil
| | - Ana I. Ribeiro-Barros
- Plant-Environment Interactions and Biodiversity Lab (PlantStress & Biodiversity), Forest Research Centre (CEF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
- Associate Laboratory TERRA, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), 2829-516 Caparica, Portugal
- Correspondence: (A.I.R.-B.); or (J.C.R.)
| | - José C. Ramalho
- Plant-Environment Interactions and Biodiversity Lab (PlantStress & Biodiversity), Forest Research Centre (CEF), Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
- Associate Laboratory TERRA, Instituto Superior de Agronomia (ISA), Universidade de Lisboa, 1349-017 Lisboa, Portugal
- Unidade de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia (FCT), Universidade NOVA de Lisboa (UNL), 2829-516 Caparica, Portugal
- Correspondence: (A.I.R.-B.); or (J.C.R.)
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Gámez AL, Han X, Aranjuelo I. Differential Effect of Free-Air CO 2 Enrichment (FACE) in Different Organs and Growth Stages of Two Cultivars of Durum Wheat. PLANTS (BASEL, SWITZERLAND) 2023; 12:686. [PMID: 36771770 PMCID: PMC9920850 DOI: 10.3390/plants12030686] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Wheat is a target crop within the food security context. The responses of wheat plants under elevated concentrations of CO2 (e[CO2]) have been previously studied; however, few of these studies have evaluated several organs at different phenological stages simultaneously under free-air CO2 enrichment (FACE) conditions. The main objective of this study was to evaluate the effect of e[CO2] in two cultivars of wheat (Triumph and Norin), analyzed at three phenological stages (elongation, anthesis, and maturation) and in different organs at each stage, under FACE conditions. Agronomic, biomass, physiological, and carbon (C) and nitrogen (N) dynamics were examined in both ambient CO2 (a[CO2]) fixed at 415 µmol mol-1 CO2 and e[CO2] at 550 µmol mol-1 CO2. We found minimal effect of e[CO2] compared to a[CO2] on agronomic and biomass parameters. Also, while exposure to 550 µmol mol-1 CO2 increased the photosynthetic rate of CO2 assimilation (An), the current study showed a diminishment in the maximum carboxylation (Vc,max) and maximum electron transport (Jmax) under e[CO2] conditions compared to a[CO2] at physiological level in both cultivars. However, even if no significant differences were detected between cultivars on photosynthetic machinery, differential responses between cultivars were detected in C and N dynamics at e[CO2]. Triumph showed starch accumulation in most organs during anthesis and maturation, but a decline in N content was observed. Contrastingly, in Norin, a decrease in starch content during the three stages and an increase in N content was observed. The amino acid content decreased in grain and shells at maturation in both cultivars, which might indicate a minimal translocation from source to sink organs. These results suggest a greater acclimation to e[CO2] enrichment in Triumph than Norin, because both the elongation stage and e[CO2] modified the source-sink relationship. According to the differences between cultivars, future studies should be performed to test genetic variation under FACE technology and explore the potential of cultivars to cope with projected climate scenarios.
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Affiliation(s)
- Angie L. Gámez
- Agrobiotechnology Institute (IdAB), CSIC—Government of Navarre, 31192 Mutilva Baja, Spain
- NAFOSA Company, 31350 Peralta, Spain
| | - Xue Han
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences (IEDA, CAAS), Beijing 100081, China
| | - Iker Aranjuelo
- Agrobiotechnology Institute (IdAB), CSIC—Government of Navarre, 31192 Mutilva Baja, Spain
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Zhang RY, Massey B, Mathesius U, Clarke VC. Photosynthetic Gains in Super-Nodulating Mutants of Medicago truncatula under Elevated Atmospheric CO 2 Conditions. PLANTS (BASEL, SWITZERLAND) 2023; 12:441. [PMID: 36771529 PMCID: PMC9920600 DOI: 10.3390/plants12030441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/09/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Legumes are generally considered to be more responsive to elevated CO2 (eCO2) conditions due to the benefits provided by symbiotic nitrogen fixation. In response to high carbohydrate demand from nodules, legumes display autoregulation of nodulation (AON) to restrict nodules to the minimum number necessary to sustain nitrogen supply under current photosynthetic levels. AON mutants super-nodulate and typically grow smaller than wild-type plants under ambient CO2. Here, we show that AON super-nodulating mutants have substantially higher biomass under eCO2 conditions, which is sustained through increased photosynthetic investment. We examined photosynthetic and physiological traits across super-nodulating rdn1-1 (Root Determined Nodulation) and sunn4 (Super Numeric Nodules) and non-nodulating nfp1 (Nod Factor Perception) Medicago truncatula mutants. Under eCO2 conditions, super-nodulating plants exhibited increased rates of carboxylation (Vcmax) and electron transport (J) relative to wild-type and non-nodulating counterparts. The substantially higher rate of CO2 assimilation in eCO2-grown sunn4 super-nodulating plants was sustained through increased production of key photosynthetic enzymes, including Rieske FeS. We hypothesize that AON mutants are carbon-limited and can perform better at eCO2 through improved photosynthesis. Nodulating legumes, especially those with higher nitrogen fixation capability, are likely to out-perform non-nodulating plants under future CO2 conditions and will be important tools for understanding carbon and nitrogen partitioning under eCO2 conditions and future crop improvements.
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Affiliation(s)
- Rose Y. Zhang
- Research School of Biology, Australian National University, Canberra, ACT 2601, Australia
| | - Baxter Massey
- Research School of Biology, Australian National University, Canberra, ACT 2601, Australia
| | - Ulrike Mathesius
- Research School of Biology, Australian National University, Canberra, ACT 2601, Australia
| | - Victoria C. Clarke
- Research School of Biology, Australian National University, Canberra, ACT 2601, Australia
- Tasmanian Institute of Agriculture, University of Tasmania, Sandy Bay, TAS 7005, Australia
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Eckardt NA, Ainsworth EA, Bahuguna RN, Broadley MR, Busch W, Carpita NC, Castrillo G, Chory J, DeHaan LR, Duarte CM, Henry A, Jagadish SVK, Langdale JA, Leakey ADB, Liao JC, Lu KJ, McCann MC, McKay JK, Odeny DA, Jorge de Oliveira E, Platten JD, Rabbi I, Rim EY, Ronald PC, Salt DE, Shigenaga AM, Wang E, Wolfe M, Zhang X. Climate change challenges, plant science solutions. THE PLANT CELL 2023; 35:24-66. [PMID: 36222573 PMCID: PMC9806663 DOI: 10.1093/plcell/koac303] [Citation(s) in RCA: 36] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Climate change is a defining challenge of the 21st century, and this decade is a critical time for action to mitigate the worst effects on human populations and ecosystems. Plant science can play an important role in developing crops with enhanced resilience to harsh conditions (e.g. heat, drought, salt stress, flooding, disease outbreaks) and engineering efficient carbon-capturing and carbon-sequestering plants. Here, we present examples of research being conducted in these areas and discuss challenges and open questions as a call to action for the plant science community.
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Affiliation(s)
| | - Elizabeth A Ainsworth
- USDA ARS Global Change and Photosynthesis Research Unit, Urbana, Illinois 61801, USA
| | - Rajeev N Bahuguna
- Centre for Advanced Studies on Climate Change, Dr Rajendra Prasad Central Agricultural University, Samastipur 848125, Bihar, India
| | - Martin R Broadley
- School of Biosciences, University of Nottingham, Nottingham, NG7 2RD, UK
- Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, UK
| | - Wolfgang Busch
- Plant Molecular and Cellular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, California 92037, USA
| | - Nicholas C Carpita
- Biosciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA
| | - Gabriel Castrillo
- School of Biosciences, University of Nottingham, Nottingham, NG7 2RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Joanne Chory
- Plant Molecular and Cellular Biology Laboratory, Salk Institute for Biological Studies, La Jolla, California 92037, USA
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, California 92037, USA
| | | | - Carlos M Duarte
- Red Sea Research Center (RSRC) and Computational Bioscience Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Amelia Henry
- International Rice Research Institute, Rice Breeding Innovations Platform, Los Baños, Laguna 4031, Philippines
| | - S V Krishna Jagadish
- Department of Plant and Soil Science, Texas Tech University, Lubbock, Texas 79410, USA
| | - Jane A Langdale
- Department of Biology, University of Oxford, Oxford, OX1 3RB, UK
| | - Andrew D B Leakey
- Department of Plant Biology, Department of Crop Sciences, and Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Illinois 61801, USA
| | - James C Liao
- Institute of Biological Chemistry, Academia Sinica, Taipei 11528, Taiwan
| | - Kuan-Jen Lu
- Institute of Biological Chemistry, Academia Sinica, Taipei 11528, Taiwan
| | - Maureen C McCann
- Biosciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA
| | - John K McKay
- Department of Agricultural Biology, Colorado State University, Fort Collins, Colorado 80523, USA
| | - Damaris A Odeny
- The International Crops Research Institute for the Semi-Arid Tropics–Eastern and Southern Africa, Gigiri 39063-00623, Nairobi, Kenya
| | | | - J Damien Platten
- International Rice Research Institute, Rice Breeding Innovations Platform, Los Baños, Laguna 4031, Philippines
| | - Ismail Rabbi
- International Institute of Tropical Agriculture (IITA), PMB 5320 Ibadan, Oyo, Nigeria
| | - Ellen Youngsoo Rim
- Department of Plant Pathology and the Genome Center, University of California, Davis, California 95616, USA
| | - Pamela C Ronald
- Department of Plant Pathology and the Genome Center, University of California, Davis, California 95616, USA
- Innovative Genomics Institute, Berkeley, California 94704, USA
| | - David E Salt
- School of Biosciences, University of Nottingham, Nottingham, NG7 2RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Alexandra M Shigenaga
- Department of Plant Pathology and the Genome Center, University of California, Davis, California 95616, USA
| | - Ertao Wang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
| | - Marnin Wolfe
- Auburn University, Dept. of Crop Soil and Environmental Sciences, College of Agriculture, Auburn, Alabama 36849, USA
| | - Xiaowei Zhang
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China
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50
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Kim Y, Takahashi S, Obayashi H, Miyao M. Role of glycerophosphodiester phosphodiesterase in rice leaf blades in elevated CO 2 environments. PLANT BIOLOGY (STUTTGART, GERMANY) 2023; 25:54-61. [PMID: 36164964 DOI: 10.1111/plb.13468] [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: 05/04/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
Glycerophosphodiester phosphodiesterase (GDPD; EC 3.1.4.46) is involved in plant phosphate (Pi) utilization and its expression is upregulated under phosphorus (P)-deficient conditions. Although rice was grown under P-sufficient conditions, the transcript levels of specific OsGDPD were upregulated in mature rice leaf blades (LB) in elevated CO2 (eCO2 ) environments. Expression and subcellular localization of GDPD, and contents of Pi, sugar phosphates and carbohydrates were analysed to clarify the physiological function of GDPD in rice under eCO2 . Under eCO2 , expression of specific OsGDPD increased only in mature rice LB in which low Pi concentrations were observed. Moreover, eCO2 -induced OsGDPD2 and OsGDPD3 were localized in the plastid, indicating that GDPD2 and GDPD3 may be related to plastidic functions, such as carbon assimilation. Although rice LB contained more carbohydrates under eCO2 than under ambient CO2 , the phosphoglucose content decreased under eCO2 , suggesting that the need for excess phosphoglucose to synthesize carbohydrates under eCO2 causes a local Pi deficiency. Furthermore, we confirmed that glycerol-3-phosphate produced by the catalysis of GDPD from glycerophosphodiester contributes to carbohydrate accumulation in rice LB. Our findings suggest that local Pi deficiency due to excess carbohydrate accumulation under eCO2 influences GDPD to enhance glycerophosphodiester hydrolysis.
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Affiliation(s)
- Y Kim
- Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - S Takahashi
- Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - H Obayashi
- Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
| | - M Miyao
- Graduate School of Agricultural Science, Tohoku University, Sendai, Japan
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