1
|
Raymundo R, Mclean G, Sexton-Bowser S, Lipka AE, Morris GP. Crop modeling suggests limited transpiration would increase yield of sorghum across drought-prone regions of the United States. FRONTIERS IN PLANT SCIENCE 2024; 14:1283339. [PMID: 38348164 PMCID: PMC10859530 DOI: 10.3389/fpls.2023.1283339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/21/2023] [Indexed: 02/15/2024]
Abstract
Breeding sorghum to withstand droughts is pivotal to secure crop production in regions vulnerable to water scarcity. Limited transpiration (LT) restricts water demand at high vapor pressure deficit, saving water for use in critical periods later in the growing season. Here we evaluated the hypothesis that LT would increase sorghum grain yield in the United States. We used a process-based crop model, APSIM, which simulates interactions of genotype, environment, and management (G × E × M). In this study, the G component includes the LT trait (GT) and maturity group (GM), the EW component entails water deficit patterns, and the MP component represents different planting dates. Simulations were conducted over 33 years (1986-2018) for representative locations across the US sorghum belt (Kansas, Texas, and Colorado) for three planting dates and maturity groups. The interaction of GT x EW indicated a higher impact of LT sorghum on grain for late drought (LD), mid-season drought (MD), and early drought (ED, 8%), than on well-watered (WW) environments (4%). Thus, significant impacts of LT can be achieved in western regions of the sorghum belt. The lack of interaction of GT × GM × MP suggested that an LT sorghum would increase yield by around 8% across maturity groups and planting dates. Otherwise, the interaction GM × MP revealed that specific combinations are better suited across geographical regions. Overall, the findings suggest that breeding for LT would increase sorghum yield in the drought-prone areas of the US without tradeoffs.
Collapse
Affiliation(s)
- Rubí Raymundo
- Department of Soil and Crop Science, Colorado State University, Fort Collins, CO, United States
| | - Greg Mclean
- Center for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Sarah Sexton-Bowser
- Department of Agronomy, Kansas State University, Manhattan, KS, United States
| | - Alexander E. Lipka
- Department of Crop Sciences, University of Illinois, Urbana, IL, United States
| | - Geoffrey P. Morris
- Department of Soil and Crop Science, Colorado State University, Fort Collins, CO, United States
| |
Collapse
|
2
|
Nur S, Setiawan H, Hanafi M, Elya B. Pharmacognostical and Phytochemical Studies and Biological Activity of Curculigo latifolia Plant Organs for Natural Skin-Whitening Compound Candidate. ScientificWorldJournal 2023; 2023:5785259. [PMID: 37829602 PMCID: PMC10567512 DOI: 10.1155/2023/5785259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 03/14/2023] [Accepted: 09/20/2023] [Indexed: 10/14/2023] Open
Abstract
Curculigo latifolia (family Amaryllidaceae) is used empirically for medicinal purposes. It is distributed throughout Asian countries, especially Indonesia. This study aimed at standardizing the C. latifolia plant, analyzing its phytochemical profile, and evaluating its pharmacological effects. The powder from each organ (root, stem, and leaves) was standardized organoleptically and microscopically. Samples were extracted by graded maceration using hexane, ethyl acetate, and ethanol. The extracts were determined for total phenolic content (TPC) and total flavonoid content (TFC). Antioxidant (radical scavenging and metal ion reduction) and antityrosinase activities were determined by spectrophotometric methods. Extracts were analysed for phytochemical profiles by LC-ESI-MS. The highest TPC and TFC were found in the ethanolic extract of the root organ (68.63 ± 2.97 mg GAE/g) and the ethyl acetate extract of the stem (14.33 ± 0.71 mg QE/g extract). High antioxidant activities were found in the ethanolic root extract (20.42 ± 0.33 µg/mL) and ethanolic stem extract (45.65 ± 0.77 µg/mL) by DPPH• and NO• assays, respectively. The ion reduction activity (by CUPRAC assay) was most significant in the ethyl acetate stem extract (390.42 ± 14.49 µmol GAEAC/g extract). Ethanolic root extract was the most active in inhibiting tyrosinase (IC50 value of 108.5 µg/mL). The correlation matrix between TPC and antioxidant activities showed a moderate to robust correlation, whereas the TPC and antityrosinase activity showed a robust correlation. The TFC and antioxidant or antityrosinase activities showed a weak to moderate correlation. The LC-ESI-MS data identified major phenols in the active extracts, including methyl 3-hydroxy-4-methoxy-benzoate, quercetin, 4-O-caffeoylquinic acid-1, and curculigoside. Overall, this study suggests that extracts from the C. latifolia plant offer potent antioxidant and antityrosinase activities, allowing them to be used as natural antioxidants and candidates for skin-lightening compounds.
Collapse
Affiliation(s)
- Syamsu Nur
- Department of Phytochemistry and Pharmacognosy, Faculty of Pharmacy, University of Indonesia, Depok 16424, Indonesia
- Department of Pharmaceutical Chemistry, Almarisah Madani University, Makassar 90245, Indonesia
| | - Heri Setiawan
- Department of Pharmacology, Faculty of Pharmacy, University of Indonesia, Depok 16424, Indonesia
| | - Muhammad Hanafi
- Indonesian Institute of Sciences (National Research and Innovation Agency (BRIN)), Jakarta 15314, Indonesia
- Department of Phytochemistry, Faculty of Pharmacy, Pancasila University, South Jakarta 12640, Indonesia
| | - Berna Elya
- Department of Phytochemistry and Pharmacognosy, Faculty of Pharmacy, University of Indonesia, Depok 16424, Indonesia
| |
Collapse
|
3
|
Vadez V, Pilloni R, Grondin A, Hajjarpoor A, Belhouchette H, Brouziyne Y, Chehbouni G, Kharrou MH, Zitouna-Chebbi R, Mekki I, Molénat J, Jacob F, Bossuet J. Water use efficiency across scales: from genes to landscapes. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4770-4788. [PMID: 36779607 PMCID: PMC10474597 DOI: 10.1093/jxb/erad052] [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: 10/17/2022] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Water scarcity is already set to be one of the main issues of the 21st century, because of competing needs between civil, industrial, and agricultural use. Agriculture is currently the largest user of water, but its share is bound to decrease as societies develop and clearly it needs to become more water efficient. Improving water use efficiency (WUE) at the plant level is important, but translating this at the farm/landscape level presents considerable challenges. As we move up from the scale of cells, organs, and plants to more integrated scales such as plots, fields, farm systems, and landscapes, other factors such as trade-offs need to be considered to try to improve WUE. These include choices of crop variety/species, farm management practices, landscape design, infrastructure development, and ecosystem functions, where human decisions matter. This review is a cross-disciplinary attempt to analyse approaches to addressing WUE at these different scales, including definitions of the metrics of analysis and consideration of trade-offs. The equations we present in this perspectives paper use similar metrics across scales to make them easier to connect and are developed to highlight which levers, at different scales, can improve WUE. We also refer to models operating at these different scales to assess WUE. While our entry point is plants and crops, we scale up the analysis of WUE to farm systems and landscapes.
Collapse
Affiliation(s)
- Vincent Vadez
- French National Research Institute for Sustainable Development (IRD), UMR DIADE, University of Montpellier, 911 Av. Agropolis BP65401, 34394, Montpellier, France
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, 502 324, Telangana, India
- LMI LAPSE, CERAAS-ISRA, Thiès, Senegal
| | - Raphael Pilloni
- French National Research Institute for Sustainable Development (IRD), UMR DIADE, University of Montpellier, 911 Av. Agropolis BP65401, 34394, Montpellier, France
| | - Alexandre Grondin
- French National Research Institute for Sustainable Development (IRD), UMR DIADE, University of Montpellier, 911 Av. Agropolis BP65401, 34394, Montpellier, France
| | - Amir Hajjarpoor
- French National Research Institute for Sustainable Development (IRD), UMR DIADE, University of Montpellier, 911 Av. Agropolis BP65401, 34394, Montpellier, France
| | - Hatem Belhouchette
- ABSys, Université de Montpellier, CIHEAM-IAMM, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Youssef Brouziyne
- International Water Management Institute (IWMI), MENA Office, Giza 12661, Egypt
| | - Ghani Chehbouni
- International Water Research Institute (IWRI), Mohammed VI Polytechnic University (UM6P) UMR CESBIO, Benguerir 43150, Morocco
| | - Mohamed Hakim Kharrou
- International Water Research Institute (IWRI), Mohammed VI Polytechnic University (UM6P) UMR CESBIO, Benguerir 43150, Morocco
| | | | - Insaf Mekki
- INRGREF, Carthage University, B.P. 10, 2080 Ariana, Tunisia
| | - Jérôme Molénat
- UMR LISAH, Université de Montpellier, INRAE, IRD, Institut Agro Montpellier, AgroParisTech, Montpellier, France
| | - Frédéric Jacob
- UMR LISAH, Université de Montpellier, INRAE, IRD, Institut Agro Montpellier, AgroParisTech, Montpellier, France
| | | |
Collapse
|
4
|
Eyland D, Gambart C, Swennen R, Carpentier S. Unravelling the diversity in water usage among wild banana species in response to vapour pressure deficit. FRONTIERS IN PLANT SCIENCE 2023; 14:1068191. [PMID: 37670859 PMCID: PMC10475999 DOI: 10.3389/fpls.2023.1068191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 08/03/2023] [Indexed: 09/07/2023]
Abstract
The rise in global temperature is not only affecting plant functioning directly, but is also increasing air vapour pressure deficit (VPD). The yield of banana is heavily affected by water deficit but so far breeding programs have never addressed the issue of water deficit caused by high VPD. A reduction in transpiration at high VPD has been suggested as a key drought tolerance breeding trait to avoid excessive water loss, hydraulic failure and to increase water use efficiency. In this study, stomatal and transpiration responses under increasing VPD at the leaf and whole-plant level of 8 wild banana (sub)species were evaluated, displaying significant differences in stomatal reactivity. Three different phenotypic groups were identified under increasing VPD. While (sub)species of group III maintained high transpiration rates under increasing VPD, M. acuminata ssp. errans (group I), M. acuminata ssp. zebrina (group II) and M. balbisiana (group II) showed the highest transpiration rate limitations to increasing VPD. In contrast to group I, group II only showed strong reductions at high VPD levels, limiting the cost of reduced photosynthesis and strongly increasing their water use efficiency. M. acuminata ssp. zebrina and M. balbisiana thus show the most favourable responses. This study provides a basis for the identification of potential parent material in gene banks for breeding future-proof bananas that cope better with lack of water.
Collapse
Affiliation(s)
- David Eyland
- Laboratory of Tropical Crop Improvement, Division of Crop Biotechnics, KU Leuven, Heverlee, Belgium
| | - Clara Gambart
- Laboratory of Tropical Crop Improvement, Division of Crop Biotechnics, KU Leuven, Heverlee, Belgium
| | - Rony Swennen
- Laboratory of Tropical Crop Improvement, Division of Crop Biotechnics, KU Leuven, Heverlee, Belgium
- International Institute of Tropical Agriculture, Banana Breeding, Kampala, Uganda
| | - Sebastien Carpentier
- Laboratory of Tropical Crop Improvement, Division of Crop Biotechnics, KU Leuven, Heverlee, Belgium
- Bioversity International, Biodiversity for Food and Agriculture, Leuven, Belgium
| |
Collapse
|
5
|
Zhong Z, He B, Wang YP, Chen HW, Chen D, Fu YH, Chen Y, Guo L, Deng Y, Huang L, Yuan W, Hao X, Tang R, Liu H, Sun L, Xie X, Zhang Y. Disentangling the effects of vapor pressure deficit on northern terrestrial vegetation productivity. SCIENCE ADVANCES 2023; 9:eadf3166. [PMID: 37556542 PMCID: PMC10411893 DOI: 10.1126/sciadv.adf3166] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 07/07/2023] [Indexed: 08/11/2023]
Abstract
The impact of atmospheric vapor pressure deficit (VPD) on plant photosynthesis has long been acknowledged, but large interactions with air temperature (T) and soil moisture (SM) still hinder a complete understanding of the influence of VPD on vegetation production across various climate zones. Here, we found a diverging response of productivity to VPD in the Northern Hemisphere by excluding interactive effects of VPD with T and SM. The interactions between VPD and T/SM not only offset the potential positive impact of warming on vegetation productivity but also amplifies the negative effect of soil drying. Notably, for high-latitude ecosystems, there occurs a pronounced shift in vegetation productivity's response to VPD during the growing season when VPD surpasses a threshold of 3.5 to 4.0 hectopascals. These results yield previously unknown insights into the role of VPD in terrestrial ecosystems and enhance our comprehension of the terrestrial carbon cycle's response to global warming.
Collapse
Affiliation(s)
- Ziqian Zhong
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, 100875 Beijing, China
| | - Bin He
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, 100875 Beijing, China
| | - Ying-Ping Wang
- CSIRO Environment, Private Bag 1, Aspendale, Victoria, Australia
| | - Hans W. Chen
- Department of Space, Earth and Environment, Division of Geoscience and Remote Sensing, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Deliang Chen
- Regional Climate Group, Department of Earth Sciences, University of Gothenburg, S-40530 Gothenburg, Sweden
| | - Yongshuo H. Fu
- College of Water Sciences, Beijing Normal University, 100875 Beijing, China
| | - Yaning Chen
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011 Urumqi, China
| | - Lanlan Guo
- School of Geography, Beijing Normal University, 100875 Beijing, China
| | - Ying Deng
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, 100093 Beijing, China
| | - Ling Huang
- College of Urban and Environmental Sciences, Peking University, 100871 Beijing, China
| | - Wenping Yuan
- School of Atmospheric Sciences, Sun Yat-Sen University, 510275 Guangzhou, China
| | - Xingmin Hao
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011 Urumqi, China
| | - Rui Tang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, 100875 Beijing, China
| | - Huiming Liu
- Ministry of Ecology and Environment Center for Satellite Application on Ecology and Environment, 100094 Beijing, China
| | - Liying Sun
- Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101 Beijing, China
| | - Xiaoming Xie
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, 100875 Beijing, China
| | - Yafeng Zhang
- State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, 100875 Beijing, China
| |
Collapse
|
6
|
Guo Z, Still CJ, Lee CKF, Ryu Y, Blonder B, Wang J, Bonebrake TC, Hughes A, Li Y, Yeung HCH, Zhang K, Law YK, Lin Z, Wu J. Does plant ecosystem thermoregulation occur? An extratropical assessment at different spatial and temporal scales. THE NEW PHYTOLOGIST 2023; 238:1004-1018. [PMID: 36495263 DOI: 10.1111/nph.18632] [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: 08/09/2022] [Accepted: 11/11/2022] [Indexed: 06/17/2023]
Abstract
To what degree plant ecosystems thermoregulate their canopy temperature (Tc ) is critical to assess ecosystems' metabolisms and resilience with climate change, but remains controversial, with opinions from no to moderate thermoregulation capability. With global datasets of Tc , air temperature (Ta ), and other environmental and biotic variables from FLUXNET and satellites, we tested the 'limited homeothermy' hypothesis (indicated by Tc & Ta regression slope < 1 or Tc < Ta around midday) across global extratropics, including temporal and spatial dimensions. Across daily to weekly and monthly timescales, over 80% of sites/ecosystems have slopes ≥1 or Tc > Ta around midday, rejecting the above hypothesis. For those sites unsupporting the hypothesis, their Tc -Ta difference (ΔT) exhibits considerable seasonality that shows negative, partial correlations with leaf area index, implying a certain degree of thermoregulation capability. Spatially, site-mean ΔT exhibits larger variations than the slope indicator, suggesting ΔT is a more sensitive indicator for detecting thermoregulatory differences across biomes. Furthermore, this large spatial-wide ΔT variation (0-6°C) is primarily explained by environmental variables (38%) and secondarily by biotic factors (15%). These results demonstrate diverse thermoregulation patterns across global extratropics, with most ecosystems negating the 'limited homeothermy' hypothesis, but their thermoregulation still occurs, implying that slope < 1 or Tc < Ta are not necessary conditions for plant thermoregulation.
Collapse
Affiliation(s)
- Zhengfei Guo
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Christopher J Still
- Forest Ecosystems and Society, Oregon State University, Corvallis, OR, 97331, USA
| | - Calvin K F Lee
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Youngryel Ryu
- Department of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, Gwanak-gu, Seoul, South Korea
| | - Benjamin Blonder
- Department of Environmental Science, Policy, and Management, University of California, Berkeley, CA, 94720, USA
| | - Jing Wang
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Timothy C Bonebrake
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Institute for Climate and Carbon Neutrality, The University of Hong Kong, Hong Kong, China
| | - Alice Hughes
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Institute for Climate and Carbon Neutrality, The University of Hong Kong, Hong Kong, China
| | - Yan Li
- State Key Laboratory of Earth Surface Processes and Resources Ecology, Beijing Normal University, Beijing, 100875, China
| | - Henry C H Yeung
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Kun Zhang
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Department of Mathematics, The University of Hong Kong, Hong Kong, China
| | - Ying Ki Law
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Ziyu Lin
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jin Wu
- School for Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
- Institute for Climate and Carbon Neutrality, The University of Hong Kong, Hong Kong, China
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| |
Collapse
|
7
|
Estrada F, Flexas J, Araus JL, Mora-Poblete F, Gonzalez-Talice J, Castillo D, Matus IA, Méndez-Espinoza AM, Garriga M, Araya-Riquelme C, Douthe C, Castillo B, del Pozo A, Lobos GA. Exploring plant responses to abiotic stress by contrasting spectral signature changes. FRONTIERS IN PLANT SCIENCE 2023; 13:1026323. [PMID: 36777544 PMCID: PMC9910286 DOI: 10.3389/fpls.2022.1026323] [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: 08/23/2022] [Accepted: 12/23/2022] [Indexed: 06/18/2023]
Abstract
In this study, daily changes over a short period and diurnal progression of spectral reflectance at the leaf level were used to identify spring wheat genotypes (Triticum aestivum L.) susceptible to adverse conditions. Four genotypes were grown in pots experiments under semi-controlled conditions in Chile and Spain. Three treatments were applied: i) control (C), ii) water stress (WS), and iii) combined water and heat shock (WS+T). Spectral reflectance, gas exchange and chlorophyll fluorescence measurements were performed on flag leaves for three consecutive days at anthesis. High canopy temperature ( H CT ) genotypes showed less variability in their mean spectral reflectance signature and chlorophyll fluorescence, which was related to weaker responses to environmental fluctuations. While low canopy temperature ( L CT ) genotypes showed greater variability. The genotypes spectral signature changes, in accordance with environmental fluctuation, were associated with variations in their stomatal conductance under both stress conditions (WS and WS+T); L CT genotypes showed an anisohydric response compared that of H CT , which was isohydric. This approach could be used in breeding programs for screening a large number of genotypes through proximal or remote sensing tools and be a novel but simple way to identify groups of genotypes with contrasting performances.
Collapse
Affiliation(s)
- Félix Estrada
- Plant Breeding and Phenomics Center, Faculty of Agricultural Sciences, University of Talca, Talca, Chile
- Instituto de Investigaciones Agropecuarias INIA-Quilamapu, Chillán, Chile
| | - Jaume Flexas
- Instituto de Investigaciones Agropecuarias INIA-Remehue, Osorno, Chile
| | - Jose Luis Araus
- Research Group on Plant Biology Under Mediterranean Conditions, Departament de Biologia, Institute of Agro-Environmental Research and Water Economy, Universitat de les Illes Balears, Illes Balears, Spain
| | - Freddy Mora-Poblete
- Department of Evolutive Biology Ecology, and Environmental Sciences, University of Barcelona, Barcelona, Spain
| | | | - Dalma Castillo
- Departamento de Producción Forestal y Tecnología de la Madera, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay
| | - Ivan A. Matus
- Instituto de Investigaciones Agropecuarias INIA-Quilamapu, Chillán, Chile
| | | | - Miguel Garriga
- Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de Concepción, Concepción, Chile
| | - Carlos Araya-Riquelme
- Plant Breeding and Phenomics Center, Faculty of Agricultural Sciences, University of Talca, Talca, Chile
| | - Cyril Douthe
- Research Group on Plant Biology Under Mediterranean Conditions, Departament de Biologia, Institute of Agro-Environmental Research and Water Economy, Universitat de les Illes Balears, Illes Balears, Spain
| | - Benjamin Castillo
- Plant Breeding and Phenomics Center, Faculty of Agricultural Sciences, University of Talca, Talca, Chile
| | - Alejandro del Pozo
- Plant Breeding and Phenomics Center, Faculty of Agricultural Sciences, University of Talca, Talca, Chile
| | - Gustavo A. Lobos
- Plant Breeding and Phenomics Center, Faculty of Agricultural Sciences, University of Talca, Talca, Chile
| |
Collapse
|
8
|
Affortit P, Effa-Effa B, Ndoye MS, Moukouanga D, Luchaire N, Cabrera-Bosquet L, Perálvarez M, Pilloni R, Welcker C, Champion A, Gantet P, Diedhiou AG, Manneh B, Aroca R, Vadez V, Laplaze L, Cubry P, Grondin A. Physiological and genetic control of transpiration efficiency in African rice, Oryza glaberrima Steud. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5279-5293. [PMID: 35429274 DOI: 10.1093/jxb/erac156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Improving crop water use efficiency, the amount of carbon assimilated as biomass per unit of water used by a plant, is of major importance as water for agriculture becomes scarcer. In rice, the genetic bases of transpiration efficiency, the derivation of water use efficiency at the whole-plant scale, and its putative component trait transpiration restriction under high evaporative demand remain unknown. These traits were measured in 2019 in a panel of 147 African rice (Oryza glaberrima) genotypes known to be potential sources of tolerance genes to biotic and abiotic stresses. Our results reveal that higher transpiration efficiency is associated with transpiration restriction in African rice. Detailed measurements in a subset of highly contrasted genotypes in terms of biomass accumulation and transpiration confirmed these associations and suggested that root to shoot ratio played an important role in transpiration restriction. Genome wide association studies identified marker-trait associations for transpiration response to evaporative demand, transpiration efficiency, and its residuals, with links to genes involved in water transport and cell wall patterning. Our data suggest that root-shoot partitioning is an important component of transpiration restriction that has a positive effect on transpiration efficiency in African rice. Both traits are heritable and define targets for breeding rice with improved water use strategies.
Collapse
Affiliation(s)
- Pablo Affortit
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - Branly Effa-Effa
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
- CENAREST, Libreville, Gabon
| | - Mame Sokhatil Ndoye
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
- CERAAS, Thiès, Senegal
| | | | - Nathalie Luchaire
- LEPSE, Université de Montpellier, INRAE, Institut Agro, Montpellier, France
| | | | | | - Raphaël Pilloni
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - Claude Welcker
- LEPSE, Université de Montpellier, INRAE, Institut Agro, Montpellier, France
| | - Antony Champion
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - Pascal Gantet
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | | | | | | | - Vincent Vadez
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
- CERAAS, Thiès, Senegal
- LMI LAPSE, Dakar, Senegal
- ICRISAT, Patancheru, India
| | - Laurent Laplaze
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
- LMI LAPSE, Dakar, Senegal
| | - Philippe Cubry
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
| | - Alexandre Grondin
- DIADE, Université de Montpellier, IRD, CIRAD, Montpellier, France
- CERAAS, Thiès, Senegal
- LMI LAPSE, Dakar, Senegal
| |
Collapse
|
9
|
Effect of Trichoderma asperellum on Wheat Plants' Biochemical and Molecular Responses, and Yield under Different Water Stress Conditions. Int J Mol Sci 2022; 23:ijms23126782. [PMID: 35743226 PMCID: PMC9224292 DOI: 10.3390/ijms23126782] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/07/2022] [Accepted: 06/16/2022] [Indexed: 02/01/2023] Open
Abstract
Eight Trichoderma strains were evaluated for their potential to protect wheat seedlings against severe (no irrigation within two weeks) water stress (WS). Considering the plant fresh weight and phenotype, T. asperellum T140, which displays 1-aminocyclopropane-1-carboxylic acid deaminase activity and which is able to produce several phytohormones, was selected. The molecular and biochemical results obtained from 4-week-old wheat seedlings linked T140 application with a downregulation in the WS-response genes, a decrease in antioxidant activities, and a drop in the proline content, as well as low levels of hydrogen peroxide and malondialdehyde in response to severe WS. All of these responses are indicative of T140-primed seedlings having a higher tolerance to drought than those that are left untreated. A greenhouse assay performed under high nitrogen fertilization served to explore the long-term effects of T140 on wheat plants subjected to moderate (halved irrigation) WS. Even though all of the plants showed acclimation to moderate WS regardless of T140 application, there was a positive effect exerted by T. asperellum on the level of tolerance of the wheat plants to this stress. Strain T140 modulated the expression of a plant ABA-dependent WS marker and produced increased plant superoxide dismutase activity, which would explain the positive effect of Trichoderma on increasing crop yields under moderate WS conditions. The results demonstrate the effectiveness of T. asperellum T140 as a biostimulant for wheat plants under WS conditions, making them more tolerant to drought.
Collapse
|
10
|
Puglisi D, Visioni A, Ozkan H, Kara İ, Lo Piero AR, Rachdad FE, Tondelli A, Valè G, Cattivelli L, Fricano A. High accuracy of genome-enabled prediction of belowground and physiological traits in barley seedlings. G3 GENES|GENOMES|GENETICS 2022; 12:6517783. [PMID: 35099521 PMCID: PMC8895982 DOI: 10.1093/g3journal/jkac022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/21/2022] [Indexed: 11/24/2022]
Abstract
In plants, the study of belowground traits is gaining momentum due to their importance on yield formation and the uptake of water and nutrients. In several cereal crops, seminal root number and seminal root angle are proxy traits of the root system architecture at the mature stages, which in turn contributes to modulating the uptake of water and nutrients. Along with seminal root number and seminal root angle, experimental evidence indicates that the transpiration rate response to evaporative demand or vapor pressure deficit is a key physiological trait that might be targeted to cope with drought tolerance as the reduction of the water flux to leaves for limiting transpiration rate at high levels of vapor pressure deficit allows to better manage soil moisture. In the present study, we examined the phenotypic diversity of seminal root number, seminal root angle, and transpiration rate at the seedling stage in a panel of 8-way Multiparent Advanced Generation Inter-Crosses lines of winter barley and correlated these traits with grain yield measured in different site-by-season combinations. Second, phenotypic and genotypic data of the Multiparent Advanced Generation Inter-Crosses population were combined to fit and cross-validate different genomic prediction models for these belowground and physiological traits. Genomic prediction models for seminal root number were fitted using threshold and log-normal models, considering these data as ordinal discrete variable and as count data, respectively, while for seminal root angle and transpiration rate, genomic prediction was implemented using models based on extended genomic best linear unbiased predictors. The results presented in this study show that genome-enabled prediction models of seminal root number, seminal root angle, and transpiration rate data have high predictive ability and that the best models investigated in the present study include first-order additive × additive epistatic interaction effects. Our analyses indicate that beyond grain yield, genomic prediction models might be used to predict belowground and physiological traits and pave the way to practical applications for barley improvement.
Collapse
Affiliation(s)
- Damiano Puglisi
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), Università di Catania , 95123 Catania, Italy
| | - Andrea Visioni
- Biodiversity and Crop Improvement Program, International Center for Agricultural Research in the Dry Areas , 6299 Rabat, Morocco
| | - Hakan Ozkan
- Faculty of Agriculture, Department of Field Crops, University of Cukurova , 01330 Adana, Turkey
| | - İbrahim Kara
- Bahri Dagdas International Agricultural Research Institute , Km Karatay/Konya 42020, Turkey
| | - Angela Roberta Lo Piero
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), Università di Catania , 95123 Catania, Italy
| | - Fatima Ezzahra Rachdad
- Biodiversity and Crop Improvement Program, International Center for Agricultural Research in the Dry Areas , 6299 Rabat, Morocco
- Faculty of Sciences Ben M’sik, Department of Biology, Environment and Ecology Laboratory, Hassan II University of Casablanca , 7955 Casablanca, Morocco
| | - Alessandro Tondelli
- Council for Agricultural Research and Economics—Research Centre for Genomics and Bioinformatics , 29017 Fiorenzuola d’Arda (PC), Italy
| | - Giampiero Valè
- DiSIT, Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale , 13100 Vercelli, Italy
| | - Luigi Cattivelli
- Council for Agricultural Research and Economics—Research Centre for Genomics and Bioinformatics , 29017 Fiorenzuola d’Arda (PC), Italy
| | - Agostino Fricano
- Council for Agricultural Research and Economics—Research Centre for Genomics and Bioinformatics , 29017 Fiorenzuola d’Arda (PC), Italy
| |
Collapse
|
11
|
Genome Wide Association Study Uncovers the QTLome for Osmotic Adjustment and Related Drought Adaptive Traits in Durum Wheat. Genes (Basel) 2022; 13:genes13020293. [PMID: 35205338 PMCID: PMC8871942 DOI: 10.3390/genes13020293] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/25/2022] [Accepted: 01/29/2022] [Indexed: 01/27/2023] Open
Abstract
Osmotic adjustment (OA) is a major component of drought resistance in crops. The genetic basis of OA in wheat and other crops remains largely unknown. In this study, 248 field-grown durum wheat elite accessions grown under well-watered conditions, underwent a progressively severe drought treatment started at heading. Leaf samples were collected at heading and 17 days later. The following traits were considered: flowering time (FT), leaf relative water content (RWC), osmotic potential (ψs), OA, chlorophyll content (SPAD), and leaf rolling (LR). The high variability (3.89-fold) in OA among drought-stressed accessions resulted in high repeatability of the trait (h2 = 72.3%). Notably, a high positive correlation (r = 0.78) between OA and RWC was found under severe drought conditions. A genome-wide association study (GWAS) revealed 15 significant QTLs (Quantitative Trait Loci) for OA (global R2 = 63.6%), as well as eight major QTL hotspots/clusters on chromosome arms 1BL, 2BL, 4AL, 5AL, 6AL, 6BL, and 7BS, where a higher OA capacity was positively associated with RWC and/or SPAD, and negatively with LR, indicating a beneficial effect of OA on the water status of the plant. The comparative analysis with the results of 15 previous field trials conducted under varying water regimes showed concurrent effects of five OA QTL cluster hotspots on normalized difference vegetation index (NDVI), thousand-kernel weight (TKW), and/or grain yield (GY). Gene content analysis of the cluster regions revealed the presence of several candidate genes, including bidirectional sugar transporter SWEET, rhomboid-like protein, and S-adenosyl-L-methionine-dependent methyltransferases superfamily protein, as well as DREB1. Our results support OA as a valuable proxy for marker-assisted selection (MAS) aimed at enhancing drought resistance in wheat.
Collapse
|
12
|
Gao Y, Cui Y, Zhao R, Chen X, Zhang J, Zhao J, Kong L. Cryo-Treatment Enhances the Embryogenicity of Mature Somatic Embryos via the lncRNA-miRNA-mRNA Network in White Spruce. Int J Mol Sci 2022; 23:ijms23031111. [PMID: 35163033 PMCID: PMC8834816 DOI: 10.3390/ijms23031111] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/09/2022] [Accepted: 01/14/2022] [Indexed: 12/04/2022] Open
Abstract
In conifers, somatic embryogenesis is uniquely initiated from immature embryos in a narrow time window, which is considerably hindered by the difficulty to induce embryogenic tissue (ET) from other tissues, including mature somatic embryos. In this study, the embryogenic ability of newly induced ET and DNA methylation levels was detected, and whole-transcriptome sequencing analyses were carried out. The results showed that ultra-low temperature treatment significantly enhanced ET induction from mature somatic embryos, with the induction rate from 0.4% to 15.5%, but the underlying mechanisms remain unclear. The newly induced ET showed higher capability in generating mature embryos than the original ET. DNA methylation levels fluctuated during the ET induction process. Here, WGCNA analysis revealed that OPT4, TIP1-1, Chi I, GASA5, GST, LAX3, WRKY7, MYBS3, LRR-RLK, PBL7, and WIN1 genes are involved in stress response and auxin signal transduction. Through co-expression analysis, lncRNAs MSTRG.505746.1, MSTRG.1070680.1, and MSTRG.33602.1 might bind to pre-novel_miR_339 to promote the expression of WRKY7 genes for stress response; LAX3 could be protected by lncRNAs MSTRG.1070680.1 and MSTRG.33602.1 via serving as sponges for novel_miR_495 to initiate auxin signal transduction; lncRNAs MSTRG.505746.1, MSTRG.1070680.1, and MSTRG.33602.1 might serve as sponges for novel_miR_527 to enhance the expression of Chi I for early somatic embryo development. This study provides new insight into the area of stress-enhanced early somatic embryogenesis in conifers, which is also attributable to practical applications.
Collapse
Affiliation(s)
- Ying Gao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
| | - Ying Cui
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
| | - Ruirui Zhao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
| | - Xiaoyi Chen
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
| | - Jinfeng Zhang
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
| | - Jian Zhao
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
- Correspondence: (J.Z.); (L.K.)
| | - Lisheng Kong
- National Engineering Laboratory for Tree Breeding, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China; (Y.G.); (Y.C.); (R.Z.); (X.C.); (J.Z.)
- Centre for Forest Biology, Department of Biology, University of Victoria, Victoria, BC V8W 3N5, Canada
- Correspondence: (J.Z.); (L.K.)
| |
Collapse
|
13
|
Burridge JD, Grondin A, Vadez V. Optimizing Crop Water Use for Drought and Climate Change Adaptation Requires a Multi-Scale Approach. FRONTIERS IN PLANT SCIENCE 2022; 13:824720. [PMID: 35574091 PMCID: PMC9100818 DOI: 10.3389/fpls.2022.824720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/11/2022] [Indexed: 05/09/2023]
Abstract
Selection criteria that co-optimize water use efficiency and yield are needed to promote plant productivity in increasingly challenging and variable drought scenarios, particularly dryland cereals in the semi-arid tropics. Optimizing water use efficiency and yield fundamentally involves transpiration dynamics, where restriction of maximum transpiration rate helps to avoid early crop failure, while maximizing grain filling. Transpiration restriction can be regulated by multiple mechanisms and involves cross-organ coordination. This coordination involves complex feedbacks and feedforwards over time scales ranging from minutes to weeks, and from spatial scales ranging from cell membrane to crop canopy. Aquaporins have direct effect but various compensation and coordination pathways involve phenology, relative root and shoot growth, shoot architecture, root length distribution profile, as well as other architectural and anatomical aspects of plant form and function. We propose gravimetric phenotyping as an integrative, cross-scale solution to understand the dynamic, interwoven, and context-dependent coordination of transpiration regulation. The most fruitful breeding strategy is likely to be that which maintains focus on the phene of interest, namely, daily and season level transpiration dynamics. This direct selection approach is more precise than yield-based selection but sufficiently integrative to capture attenuating and complementary factors.
Collapse
Affiliation(s)
- James D. Burridge
- DIADE Group, Cereal Root Systems, Institute de Recherche pour le Développement/Université de Montpellier, Montpellier, France
- *Correspondence: James D. Burridge,
| | - Alexandre Grondin
- DIADE Group, Cereal Root Systems, Institute de Recherche pour le Développement/Université de Montpellier, Montpellier, France
- Adaptation des Plantes et Microorganismes Associés aux Stress Environnementaux, Laboratoire Mixte International, Dakar, Senegal
- Centre d’Étude Régional pour l’Amélioration de l’Adaptation à la Sécheresse, Thiès, Senegal
| | - Vincent Vadez
- DIADE Group, Cereal Root Systems, Institute de Recherche pour le Développement/Université de Montpellier, Montpellier, France
- Adaptation des Plantes et Microorganismes Associés aux Stress Environnementaux, Laboratoire Mixte International, Dakar, Senegal
- Centre d’Étude Régional pour l’Amélioration de l’Adaptation à la Sécheresse, Thiès, Senegal
- International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Patancheru, India
- Vincent Vadez,
| |
Collapse
|
14
|
El Haddad N, Choukri H, Ghanem ME, Smouni A, Mentag R, Rajendran K, Hejjaoui K, Maalouf F, Kumar S. High-Temperature and Drought Stress Effects on Growth, Yield and Nutritional Quality with Transpiration Response to Vapor Pressure Deficit in Lentil. PLANTS (BASEL, SWITZERLAND) 2021; 11:95. [PMID: 35009098 PMCID: PMC8747359 DOI: 10.3390/plants11010095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
High temperature and water deficit are among the major limitations reducing lentil (Lens culinaris Medik.) yield in many growing regions. In addition, increasing atmospheric vapor pressure deficit (VPD) due to global warming causes a severe challenge by influencing the water balance of the plants, thus also affecting growth and yield. In the present study, we evaluated 20 lentil genotypes under field conditions and controlled environments with the following objectives: (i) to investigate the impact of temperature stress and combined temperature-drought stress on traits related to phenology, grain yield, nutritional quality, and canopy temperature under field conditions, and (ii) to examine the genotypic variability for limited transpiration (TRlim) trait in response to increased VPD under controlled conditions. The field experiment results revealed that high-temperature stress significantly affected all parameters compared to normal conditions. The protein content ranged from 23.4 to 31.9%, while the range of grain zinc and iron content varied from 33.1 to 64.4 and 62.3 to 99.3 mg kg-1, respectively, under normal conditions. The grain protein content, zinc and iron decreased significantly by 15, 14 and 15% under high-temperature stress, respectively. However, the impact was more severe under combined temperature-drought stress with a reduction of 53% in protein content, 18% in zinc and 20% in iron. Grain yield declined significantly by 43% in temperature stress and by 49% in the combined temperature-drought stress. The results from the controlled conditions showed a wide variation in TR among studied lentil genotypes. Nine genotypes displayed TRlim at 2.76 to 3.51 kPa, with the genotypes ILL 7833 and ILL 7835 exhibiting the lowest breakpoint. Genotypes with low breakpoints had the ability to conserve water, allowing it to be used at later stages for increased yield. Our results identified promising genotypes including ILL 7835, ILL 7814 and ILL 4605 (Bakria) that could be of great interest in breeding for high yields, protein and micronutrient contents under high-temperature and drought stress. In addition, it was found that the TRlim trait has the potential to select for increased lentil yields under field water-deficit environments.
Collapse
Affiliation(s)
- Noureddine El Haddad
- International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat 10112, Morocco; (H.C.); (K.H.)
- Laboratoire de Biotechnologie et de Physiologie Végétales, Centre de Recherche BioBio, Faculté des Sciences, Mohammed V University Rabat, Rabat 10112, Morocco;
| | - Hasnae Choukri
- International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat 10112, Morocco; (H.C.); (K.H.)
- Laboratoire de Biotechnologie et de Physiologie Végétales, Centre de Recherche BioBio, Faculté des Sciences, Mohammed V University Rabat, Rabat 10112, Morocco;
| | - Michel Edmond Ghanem
- AgroBioSciences (AgBS) Research Division, Mohammed VI Polytechnic University, Lot 660 Hay Moulay Rachid, Ben Guerir 43150, Morocco;
| | - Abdelaziz Smouni
- Laboratoire de Biotechnologie et de Physiologie Végétales, Centre de Recherche BioBio, Faculté des Sciences, Mohammed V University Rabat, Rabat 10112, Morocco;
| | - Rachid Mentag
- Biotechnology Research Unit, Regional Center of Agricultural Research of Rabat, National Institute of Agricultural Research (INRA), Rabat 10090, Morocco;
| | - Karthika Rajendran
- Vellore Institute of Technology (VIT), VIT School of Agricultural Innovations and Advanced Learning (VAIAL), Vellore 632014, Tamil Nadu, India;
| | - Kamal Hejjaoui
- International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat 10112, Morocco; (H.C.); (K.H.)
| | - Fouad Maalouf
- International Center for Agricultural Research in the Dry Areas (ICARDA), Beirut 1108 2010, Lebanon;
| | - Shiv Kumar
- International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat 10112, Morocco; (H.C.); (K.H.)
| |
Collapse
|
15
|
Jalakas P, Takahashi Y, Waadt R, Schroeder JI, Merilo E. Molecular mechanisms of stomatal closure in response to rising vapour pressure deficit. THE NEW PHYTOLOGIST 2021; 232:468-475. [PMID: 34197630 PMCID: PMC8455429 DOI: 10.1111/nph.17592] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/28/2021] [Indexed: 05/26/2023]
Abstract
Vapour pressure deficit (VPD), the difference between the saturation and actual air vapour pressures, indicates the level of atmospheric drought and evaporative pressure on plants. VPD increases during climate change due to changes in air temperature and relative humidity. Rising VPD induces stomatal closure to counteract the VPD-mediated evaporative water loss from plants. There are important gaps in our understanding of the molecular VPD-sensing and signalling mechanisms in stomatal guard cells. Here, we discuss recent advances, research directions and open questions with respect to the three components that participate in VPD-induced stomatal closure in Arabidopsis, including: (1) abscisic acid (ABA)-dependent and (2) ABA-independent regulation of the protein kinase OPEN STOMATA 1 (OST1), and (3) the passive hydraulic stomatal response. In the ABA-dependent component, two models are proposed: ABA may be rapidly synthesised or its basal levels may be involved in the stomatal VPD response. Further studies on stomatal VPD signalling should clarify: (1) whether OST1 activation above basal activity is needed for VPD responses, (2) which components are involved in ABA-independent regulation of OST1, (3) the role of other potential OST1 targets in VPD signalling, and (4) to which extent OST1 contributes to stomatal VPD sensitivity in other plant species.
Collapse
Affiliation(s)
- Pirko Jalakas
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Yohei Takahashi
- Cell and Developmental Biology Section, Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093-0116, USA
| | - Rainer Waadt
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| | - Julian I. Schroeder
- Cell and Developmental Biology Section, Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093-0116, USA
| | - Ebe Merilo
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
| |
Collapse
|
16
|
Sadok W, Lopez JR, Smith KP. Transpiration increases under high-temperature stress: Potential mechanisms, trade-offs and prospects for crop resilience in a warming world. PLANT, CELL & ENVIRONMENT 2021; 44:2102-2116. [PMID: 33278035 DOI: 10.1111/pce.13970] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 05/24/2023]
Abstract
The frequency and intensity of high-temperature stress events are expected to increase as climate change intensifies. Concomitantly, an increase in evaporative demand, driven in part by global warming, is also taking place worldwide. Despite this, studies examining high-temperature stress impacts on plant productivity seldom consider this interaction to identify traits enhancing yield resilience towards climate change. Further, new evidence documents substantial increases in plant transpiration rate in response to high-temperature stress even under arid environments, which raise a trade-off between the need for latent cooling dictated by excessive temperatures and the need for water conservation dictated by increasing evaporative demand. However, the mechanisms behind those responses, and the potential to design the next generation of crops successfully navigating this trade-off, remain poorly investigated. Here, we review potential mechanisms underlying reported increases in transpiration rate under high-temperature stress, within the broader context of their impact on water conservation needed for crop drought tolerance. We outline three main contributors to this phenomenon, namely stomatal, cuticular and water viscosity-based mechanisms, and we outline research directions aiming at designing new varieties optimized for specific temperature and evaporative demand regimes to enhance crop productivity under a warmer and dryer climate.
Collapse
Affiliation(s)
- Walid Sadok
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota, USA
| | - Jose R Lopez
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota, USA
| | - Kevin P Smith
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, Minnesota, USA
| |
Collapse
|
17
|
Agro-Physiologic Responses and Stress-Related Gene Expression of Four Doubled Haploid Wheat Lines under Salinity Stress Conditions. BIOLOGY 2021; 10:biology10010056. [PMID: 33466713 PMCID: PMC7828821 DOI: 10.3390/biology10010056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 12/18/2022]
Abstract
Simple Summary Productivity of wheat can be enhanced using salt-tolerant genotypes. However, the assessment of salt tolerance potential in wheat through agro-physiological traits and stress-related gene expression analysis could potentially minimize the cost of breeding programs and be a powerful way for the selection of the most salt-tolerant genotype. The study evaluated the salt tolerance potential of four doubled haploid lines of wheat and compared them with the check cultivar Sakha-93 using an extensive set of agro-physiologic parameters and salt-stress-related gene expressions. The results indicated that the five genotypes tested displayed reduction in all traits evaluated except the canopy temperature and electrical conductivity, which had the greatest decline occurring in the check cultivar and the least decline in DHL2. The genotypes DHL21 and DHL5 exhibited increased expression rate of salt-stress-related genes under salt stress conditions. The multiple linear regression model and path coefficient analysis showed a coefficient of determination of 0.93. Concluding, the number of spikelets, and/or number of kernels were identified to be unbiased traits for assessing wheat DHLs under salinity conditions, given their contribution and direct impact on the grain yield. Moreover, the two most salt-tolerant genotypes DHL2 and DHL21 can be useful as genetic resources for future breeding programs. Abstract Salinity majorly hinders horizontal and vertical expansion in worldwide wheat production. Productivity can be enhanced using salt-tolerant wheat genotypes. However, the assessment of salt tolerance potential in bread wheat doubled haploid lines (DHL) through agro-physiological traits and stress-related gene expression analysis could potentially minimize the cost of breeding programs and be a powerful way for the selection of the most salt-tolerant genotype. We used an extensive set of agro-physiologic parameters and salt-stress-related gene expressions. Multivariate analysis was used to detect phenotypic and genetic variations of wheat genotypes more closely under salinity stress, and we analyzed how these strategies effectively balance each other. Four doubled haploid lines (DHLs) and the check cultivar (Sakha93) were evaluated in two salinity levels (without and 150 mM NaCl) until harvest. The five genotypes showed reduced growth under 150 mM NaCl; however, the check cultivar (Sakha93) died at the beginning of the flowering stage. Salt stress induced reduction traits, except the canopy temperature and initial electrical conductivity, which was found in each of the five genotypes, with the greatest decline occurring in the check cultivar (Sakha-93) and the least decline in DHL2. The genotypes DHL21 and DHL5 exhibited increased expression rate of salt-stress-related genes (TaNHX1, TaHKT1, and TaCAT1) compared with DHL2 and Sakha93 under salt stress conditions. Principle component analysis detection of the first two components explains 70.78% of the overall variation of all traits (28 out of 32 traits). A multiple linear regression model and path coefficient analysis showed a coefficient of determination (R2) of 0.93. The models identified two interpretive variables, number of spikelets, and/or number of kernels, which can be unbiased traits for assessing wheat DHLs under salinity stress conditions, given their contribution and direct impact on the grain yield.
Collapse
|
18
|
Gómez-Candón D, Bellvert J, Royo C. Performance of the Two-Source Energy Balance (TSEB) Model as a Tool for Monitoring the Response of Durum Wheat to Drought by High-Throughput Field Phenotyping. FRONTIERS IN PLANT SCIENCE 2021; 12:658357. [PMID: 33936143 PMCID: PMC8085348 DOI: 10.3389/fpls.2021.658357] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/22/2021] [Indexed: 05/08/2023]
Abstract
The current lack of efficient methods for high throughput field phenotyping is a constraint on the goal of increasing durum wheat yields. This study illustrates a comprehensive methodology for phenotyping this crop's water use through the use of the two-source energy balance (TSEB) model employing very high resolution imagery. An unmanned aerial vehicle (UAV) equipped with multispectral and thermal cameras was used to phenotype 19 durum wheat cultivars grown under three contrasting irrigation treatments matching crop evapotranspiration levels (ETc): 100%ETc treatment meeting all crop water requirements (450 mm), 50%ETc treatment meeting half of them (285 mm), and a rainfed treatment (122 mm). Yield reductions of 18.3 and 48.0% were recorded in the 50%ETc and rainfed treatments, respectively, in comparison with the 100%ETc treatment. UAV flights were carried out during jointing (April 4th), anthesis (April 30th), and grain-filling (May 22nd). Remotely-sensed data were used to estimate: (1) plant height from a digital surface model (H, R 2 = 0.95, RMSE = 0.18m), (2) leaf area index from multispectral vegetation indices (LAI, R 2 = 0.78, RMSE = 0.63), and (3) actual evapotranspiration (ETa) and transpiration (T) through the TSEB model (R 2 = 0.50, RMSE = 0.24 mm/h). Compared with ground measurements, the four traits estimated at grain-filling provided a good prediction of days from sowing to heading (DH, r = 0.58-0.86), to anthesis (DA, r = 0.59-0.85) and to maturity (r = 0.67-0.95), grain-filling duration (GFD, r = 0.54-0.74), plant height (r = 0.62-0.69), number of grains per spike (NGS, r = 0.41-0.64), and thousand kernel weight (TKW, r = 0.37-0.42). The best trait to estimate yield, DH, DA, and GFD was ETa at anthesis or during grain filling. Better forecasts for yield-related traits were recorded in the irrigated treatments than in the rainfed one. These results show a promising perspective in the use of energy balance models for the phenotyping of large numbers of durum wheat genotypes under Mediterranean conditions.
Collapse
Affiliation(s)
- David Gómez-Candón
- Efficient Use of Water in Agriculture Program, Institute of Agrifood Research and Technology (IRTA), Fruitcentre, PCiTAL, Parc Científic i Tecnològic Agroalimentari de Gardeny, Lleida, Spain
- *Correspondence: David Gómez-Candón
| | - Joaquim Bellvert
- Efficient Use of Water in Agriculture Program, Institute of Agrifood Research and Technology (IRTA), Fruitcentre, PCiTAL, Parc Científic i Tecnològic Agroalimentari de Gardeny, Lleida, Spain
| | - Conxita Royo
- Sustainable Field Crops Program, Institute of Agrifood Research and Technology (IRTA), Lleida, Spain
| |
Collapse
|
19
|
Sivasakthi K, Tharanya M, Zaman-Allah M, Kholová J, Thirunalasundari T, Vadez V. Transpiration difference under high evaporative demand in chickpea (Cicer arietinum L.) may be explained by differences in the water transport pathway in the root cylinder. PLANT BIOLOGY (STUTTGART, GERMANY) 2020; 22:769-780. [PMID: 32558986 DOI: 10.1111/plb.13147] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/04/2020] [Indexed: 05/24/2023]
Abstract
Terminal drought substantially reduces chickpea yield. Reducing water use at vegetative stage by reducing transpiration under high vapor pressure deficit (VPD), i.e. under dry/hot conditions, contributes to drought adaptation. We hypothesized that this trait could relate to differences in a genotype's dependence on root water transport pathways and hydraulics. Transpiration rate responses in conservative and profligate chickpea genotypes were evaluated under increasing VPD in the presence/absence of apoplastic and cell-to-cell transport inhibitors. Conservative genotypes ICC 4958 and ICC 8058 restricted transpiration under high VPD compared to the profligate genotypes ICC 14799 and ICC 867. Profligate genotypes were more affected by aquaporin inhibition of the cell-to-cell pathway than conservative genotypes, as measured by the root hydraulic conductance and transpiration under high VPD. Aquaporin inhibitor treatment also led to a larger reduction in root hydraulic conductivity in profligate than in conservative genotypes. In contrast, blockage of the apoplastic pathway in roots decreased transpiration more in conservative than in profligate genotypes. Interestingly, conservative genotypes had high early vigour, whereas profligate genotypes had low early vigour. In conclusion, profligate genotypes depend more on the cell-to-cell pathway, which might explain their higher root hydraulic conductivity, whereas water-saving by restricting transpiration led to higher dependence on the apoplastic pathway. This opens the possibility to screen for conservative or profligate chickpea phenotypes using inhibitors, itself opening to the search of the genetic basis of these differences.
Collapse
Affiliation(s)
- K Sivasakthi
- Crop Physiology Laboratory, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India
- Department of Industrial Biotechnology, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - M Tharanya
- Crop Physiology Laboratory, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India
- Department of Industrial Biotechnology, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - M Zaman-Allah
- International Center for Maize and Wheat Improvement (CIMMYT), Mount Pleasant Harare, Zimbabwe
| | - J Kholová
- Crop Physiology Laboratory, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India
| | - T Thirunalasundari
- Department of Industrial Biotechnology, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - V Vadez
- Crop Physiology Laboratory, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana, India
- IRD (Institut de Recherche pour le Developpement) - Univ. Montpellier - UMR DIADE, Montpellier cedex 5, France
| |
Collapse
|
20
|
Sanchez-Bragado R, Vicente R, Molero G, Serret MD, Maydup ML, Araus JL. New avenues for increasing yield and stability in C3 cereals: exploring ear photosynthesis. CURRENT OPINION IN PLANT BIOLOGY 2020; 56:223-234. [PMID: 32088154 DOI: 10.1016/j.pbi.2020.01.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 05/22/2023]
Abstract
Small grain cereals such as wheat, rice and barley are among the most important crops worldwide. Any attempt to increase crop productivity and stability through breeding implies developing new strategies for plant phenotyping, including defining ideotype attributes for selection. Recently, the role of non-foliar photosynthetic organs, particularly the inflorescences, has received increasing attention. For example, ear photosynthesis has been reported to be a major contributor to grain filling in wheat and barley under stress and good agronomic conditions. This review provides an overview of the particular characteristics of the ear that makes this photosynthetic organ better adapted to grain filling than the flag leaf and revises potential metabolic and molecular traits that merit further research as targets for cereal improvement. Currently, the absence of high-throughput phenotyping methods limits the inclusion of ear photosynthesis in the breeding agenda. In this regard, a number of different approaches are presented.
Collapse
Affiliation(s)
- Rut Sanchez-Bragado
- Department of Crop and Forest Sciences, University of Lleida - AGROTECNIO Center, Av. R. Roure 191, 25198 Lleida, Spain; Secció de Fisiologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, and AGROTECNIO Center, Lleida, Spain
| | - Rubén Vicente
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Gemma Molero
- Global Wheat Program, International Maize and Wheat Improvement Centre (CIMMYT), Texcoco, Mexico
| | - Maria Dolors Serret
- Secció de Fisiologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, and AGROTECNIO Center, Lleida, Spain
| | - María Luján Maydup
- National Council of Scientific and Technological Research, CONICET, La Plata University- Plant Physiology Institute INFIVE, Argentina
| | - José Luis Araus
- Secció de Fisiologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, and AGROTECNIO Center, Lleida, Spain.
| |
Collapse
|
21
|
Chairi F, Sanchez-Bragado R, Serret MD, Aparicio N, Nieto-Taladriz MT, Luis Araus J. Agronomic and physiological traits related to the genetic advance of semi-dwarf durum wheat: The case of Spain. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 295:110210. [PMID: 32534614 DOI: 10.1016/j.plantsci.2019.110210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/18/2019] [Accepted: 07/31/2019] [Indexed: 05/16/2023]
Abstract
Knowledge of the agronomic and physiological traits associated with genetic gains in yield is essential to improve understanding of yield-limiting factors and to inform future breeding strategies. The aim of this paper is to dissect the agronomic and physiological traits related to genetic gain and to propose an ideotype with high yield that is best adapted to Spanish Mediterranean environments. Six semi-dwarf (i.e. modern) durum wheat genotypes were grown in a wide range of growing conditions in Spain during two successive years. Diverse agronomic, physiological and leaf morphological traits were evaluated. Kernels spike-1 was the yield component most affected by the genetic gain. While no interaction between genotype and growing conditions existed for grain yield, the more productive genotypes were characterized by a plant height of around 85 cm, small erect flag leaves, more open stomata, a better balance between N sources and N sinks and a higher capacity to re-fix CO2 respired by the grain. Moreover, in general the non-laminar parts of the plants play a key role in providing assimilates during grain filling. The high heritability of most of the studied parameters allows their consideration as traits for phenotyping durum wheat better adapted to a wide range of Mediterranean conditions.
Collapse
Affiliation(s)
- Fadia Chairi
- Section of Plant Physiology, University of Barcelona, Barcelona, Spain; AGROTECNIO (Center of Research in Agrotechnology), Lleida, Spain
| | - Rut Sanchez-Bragado
- AGROTECNIO (Center of Research in Agrotechnology), Lleida, Spain; Department of Crop and Forest Sciences, University of Lleida, Lleida, Spain
| | - Maria Dolores Serret
- Section of Plant Physiology, University of Barcelona, Barcelona, Spain; AGROTECNIO (Center of Research in Agrotechnology), Lleida, Spain
| | - Nieves Aparicio
- Instituto de Tecnología Agraria de Castilla y León (ITACyL), Valladolid, Spain
| | | | - José Luis Araus
- Section of Plant Physiology, University of Barcelona, Barcelona, Spain; AGROTECNIO (Center of Research in Agrotechnology), Lleida, Spain.
| |
Collapse
|
22
|
Vergara-Diaz O, Vatter T, Vicente R, Obata T, Nieto-Taladriz MT, Aparicio N, Carlisle Kefauver S, Fernie A, Araus JL. Metabolome Profiling Supports the Key Role of the Spike in Wheat Yield Performance. Cells 2020; 9:E1025. [PMID: 32326207 PMCID: PMC7226616 DOI: 10.3390/cells9041025] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/07/2020] [Accepted: 04/15/2020] [Indexed: 11/30/2022] Open
Abstract
Although the relevance of spike bracts in stress acclimation and contribution to wheat yield was recently revealed, the metabolome of this organ and its response to water stress is still unknown. The metabolite profiles of flag leaves, glumes and lemmas were characterized under contrasting field water regimes in five durum wheat cultivars. Water conditions during growth were characterized through spectral vegetation indices, canopy temperature and isotope composition. Spike bracts exhibited better coordination of carbon and nitrogen metabolisms than the flag leaves in terms of photorespiration, nitrogen assimilation and respiration paths. This coordination facilitated an accumulation of organic and amino acids in spike bracts, especially under water stress. The metabolomic response to water stress also involved an accumulation of antioxidant and drought tolerance related sugars, particularly in the spikes. Furthermore, certain cell wall, respiratory and protective metabolites were associated with genotypic outperformance and yield stability. In addition, grain yield was strongly predicted by leaf and spike bracts metabolomes independently. This study supports the role of the spike as a key organ during wheat grain filling, particularly under stress conditions and provides relevant information to explore new ways to improve wheat productivity including potential biomarkers for yield prediction.
Collapse
Affiliation(s)
- Omar Vergara-Diaz
- Integrative Crop Ecophysiology Group, Plant Physiology Section, Faculty of Biology, University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; (O.V.-D.); (T.V.); (R.V.); (S.C.K.)
- AGROTECNIO (Center of Research in Agrotechnology), 25198 Lleida, Spain
| | - Thomas Vatter
- Integrative Crop Ecophysiology Group, Plant Physiology Section, Faculty of Biology, University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; (O.V.-D.); (T.V.); (R.V.); (S.C.K.)
- AGROTECNIO (Center of Research in Agrotechnology), 25198 Lleida, Spain
| | - Rubén Vicente
- Integrative Crop Ecophysiology Group, Plant Physiology Section, Faculty of Biology, University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; (O.V.-D.); (T.V.); (R.V.); (S.C.K.)
- AGROTECNIO (Center of Research in Agrotechnology), 25198 Lleida, Spain
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany; (T.O.); (A.F.)
| | - Toshihiro Obata
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany; (T.O.); (A.F.)
| | - Maria Teresa Nieto-Taladriz
- National Institute for Agricultural and Food Research and Technology (INIA), Ctra de la Coruña 7.5, 28040 Madrid, Spain;
| | - Nieves Aparicio
- Technological and Agrarian Institute of Castilla y León (ITACyL), Agricultural Research. Ctra Burgos km 119, 47041 Valladolid, Spain;
| | - Shawn Carlisle Kefauver
- Integrative Crop Ecophysiology Group, Plant Physiology Section, Faculty of Biology, University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; (O.V.-D.); (T.V.); (R.V.); (S.C.K.)
- AGROTECNIO (Center of Research in Agrotechnology), 25198 Lleida, Spain
| | - Alisdair Fernie
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam, Germany; (T.O.); (A.F.)
| | - José Luis Araus
- Integrative Crop Ecophysiology Group, Plant Physiology Section, Faculty of Biology, University of Barcelona, Diagonal 643, 08028 Barcelona, Spain; (O.V.-D.); (T.V.); (R.V.); (S.C.K.)
- AGROTECNIO (Center of Research in Agrotechnology), 25198 Lleida, Spain
| |
Collapse
|
23
|
Condon AG. Drying times: plant traits to improve crop water use efficiency and yield. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:2239-2252. [PMID: 31912130 DOI: 10.1093/jxb/eraa002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/07/2020] [Indexed: 05/13/2023]
Abstract
Crop water use efficiency (WUE) has come into sharp focus as population growth and climate change place increasing strain on the water used in cropping. Rainfed crops are being challenged by an upward trend in evaporative demand as average temperatures rise and, in many regions, there is an increased irregularity and a downward trend in rainfall. In addition, irrigated cropping faces declining water availability and increased competition from other users. Crop WUE would be improved by, first, ensuring that as much water as possible is actually transpired by the crop rather than being wasted. Deeper roots and greater early crop vigour are two traits that should help achieve this. Crop WUE would also be improved by achieving greater biomass per unit water transpired. A host of traits has been proposed to address this outcome. Restricting crop transpiration through lower stomatal conductance is assessed as having limited utility compared with traits that improve carbon gain, such as enhancements to photosynthetic biochemistry and responsiveness, or greater mesophyll conductance. Ultimately, the most useful outcomes for improved crop WUE will probably be achieved by combining traits to achieve synergistic benefit. The potential utility of trait combinations is supported by the results of crop simulation modelling.
Collapse
|
24
|
El Habti A, Fleury D, Jewell N, Garnett T, Tricker PJ. Tolerance of Combined Drought and Heat Stress Is Associated With Transpiration Maintenance and Water Soluble Carbohydrates in Wheat Grains. FRONTIERS IN PLANT SCIENCE 2020; 11:568693. [PMID: 33178236 PMCID: PMC7593570 DOI: 10.3389/fpls.2020.568693] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/22/2020] [Indexed: 05/14/2023]
Abstract
Wheat (Triticum aestivum L.) production is increasingly challenged by simultaneous drought and heatwaves. We assessed the effect of both stresses combined on whole plant water use and carbohydrate partitioning in eight bread wheat genotypes that showed contrasting tolerance. Plant water use was monitored throughout growth, and water-soluble carbohydrates (WSC) and starch were measured following a 3-day heat treatment during drought. Final grain yield was increasingly associated with aboveground biomass and total water use with increasing stress intensity. Combined drought and heat stress immediately reduced daily water use in some genotypes and altered transpiration response to vapor pressure deficit during grain filling, compared to drought only. In grains, glucose and fructose concentrations measured 12 days after anthesis explained 43 and 40% of variation in final grain weight in the main spike, respectively. Starch concentrations in grains offset the reduction in WSC following drought or combined drought and heat stress in some genotypes, while in other genotypes both stresses altered the balance between WSC and starch concentrations. WSC were predominantly allocated to the spike in modern Australian varieties (28-50% of total WSC in the main stem), whereas the stem contained most WSC in older genotypes (67-87%). Drought and combined drought and heat stress increased WSC partitioning to the spike in older genotypes but not in the modern varieties. Ability to maintain transpiration, especially following combined drought and heat stress, appears essential for maintaining wheat productivity.
Collapse
Affiliation(s)
- Abdeljalil El Habti
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
- *Correspondence: Abdeljalil El Habti,
| | - Delphine Fleury
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
| | - Nathaniel Jewell
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
- Australian Plant Phenomics Facility, The Plant Accelerator, School of Agriculture, Food & Wine, The University of Adelaide, Adelaide, SA, Australia
| | - Trevor Garnett
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
- Australian Plant Phenomics Facility, The Plant Accelerator, School of Agriculture, Food & Wine, The University of Adelaide, Adelaide, SA, Australia
| | - Penny J. Tricker
- School of Agriculture, Food and Wine, The University of Adelaide, Adelaide, SA, Australia
| |
Collapse
|
25
|
Vurro F, Janni M, Coppedè N, Gentile F, Manfredi R, Bettelli M, Zappettini A. Development of an In Vivo Sensor to Monitor the Effects of Vapour Pressure Deficit (VPD) Changes to Improve Water Productivity in Agriculture. SENSORS (BASEL, SWITZERLAND) 2019; 19:E4667. [PMID: 31661770 PMCID: PMC6864644 DOI: 10.3390/s19214667] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/16/2019] [Accepted: 10/23/2019] [Indexed: 01/07/2023]
Abstract
Environment, biodiversity and ecosystem services are essential to ensure food security and nutrition. Managing natural resources and mainstreaming biodiversity across agriculture sectors are keys towards a sustainable agriculture focused on resource efficiency. Vapour Pressure Deficit (VPD) is considered the main driving force of water movements in the plant vascular system, however the tools available to monitor this parameter are usually based on environmental monitoring. The driving motif of this paper is the development of an in-vivo sensor to monitor the effects of VPD changes in the plant. We have used an in vivo sensor, termed "bioristor", to continuously monitor the changes occurring in the sap ion's status when plants experience different VPD conditions and we observed a specific R (sensor response) trend in response to VPD. The possibility to directly monitor the physiological changes occurring in the plant in different VPD conditions, can be used to increase efficiency of the water management in controlled conditions thus achieving a more sustainable use of natural resources.
Collapse
Affiliation(s)
- Filippo Vurro
- Istituto dei materiali per l'elettronica e il magnetismo (IMEM-CNR) Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| | - Michela Janni
- Istituto dei materiali per l'elettronica e il magnetismo (IMEM-CNR) Parco Area delle Scienze 37/A, 43124 Parma, Italy.
- Istituto di Bioscienze e Biorisorse (IBBR-CNR) Via Amendola 165/A, 70126 Bari, Italy.
| | - Nicola Coppedè
- Istituto dei materiali per l'elettronica e il magnetismo (IMEM-CNR) Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| | - Francesco Gentile
- Department of Electrical Engineering and Information Technology, University Federico II, 80138 Naples, Italy.
| | - Riccardo Manfredi
- Istituto dei materiali per l'elettronica e il magnetismo (IMEM-CNR) Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| | - Manuele Bettelli
- Istituto dei materiali per l'elettronica e il magnetismo (IMEM-CNR) Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| | - Andrea Zappettini
- Istituto dei materiali per l'elettronica e il magnetismo (IMEM-CNR) Parco Area delle Scienze 37/A, 43124 Parma, Italy.
| |
Collapse
|