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Zabalgogeazcoa I, Arellano JB, Mellado-Ortega E, Barro F, Martínez-Castilla A, González-Blanco V, Vázquez de Aldana BR. Symbiotic fungi from a wild grass ( Celtica gigantea) increase the growth, grain yield and quality of tritordeum under field conditions. AOB PLANTS 2024; 16:plae013. [PMID: 38601215 PMCID: PMC11005784 DOI: 10.1093/aobpla/plae013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 03/13/2024] [Indexed: 04/12/2024]
Abstract
Plants function in symbiosis with numerous microorganisms, which might contribute to their adaptation and performance. In this study, we tested whether fungal strains in symbiotic interaction with roots of Celtica gigantea, a wild grass adapted to nutrient-poor soils in semiarid habitats, could improve the field performance of the agricultural cereal tritordeum (Triticum durum × Hordeum chilense). Seedlings of tritordeum were inoculated with 12 different fungal strains isolated from roots of Celtica gigantea that were first proved to promote the growth of tritordeum plants under greenhouse conditions. The inoculated seedlings were transplanted to field plots at two locations belonging to different climatic zones in terms of mean temperatures and precipitation in the Iberian Peninsula. Only one strain, Diaporthe iberica T6, had a significant effect on plant height, number of tillers and grain yield in one location. This result showed a substantial divergence between the results of greenhouse and field tests. In terms of grain nutritional quality, several parameters were differentially affected at both locations: Diaporthe T6, Pleosporales T7, Zygomycota T29 and Zygomycota T80 increased the content of total carotenoids, mainly lutein, in the colder location; whereas gluten proteins increased with several treatments in the warmer location. In conclusion, early inoculation of tritordeum plants with fungal symbionts had substantial beneficial effects on subsequent plant growth and development in the field. Regarding grain nutritional quality, the effect of inoculation was affected by the agroclimatic differences between both field locations.
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Affiliation(s)
- Iñigo Zabalgogeazcoa
- Unit of Plant-Microorganism Interactions, Institute of Natural Resources and Agrobiology of Salamanca, Spanish National Research Council (IRNASA-CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain
| | - Juan B Arellano
- Unit of Plant-Microorganism Interactions, Institute of Natural Resources and Agrobiology of Salamanca, Spanish National Research Council (IRNASA-CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain
| | - Elena Mellado-Ortega
- Unit of Plant-Microorganism Interactions, Institute of Natural Resources and Agrobiology of Salamanca, Spanish National Research Council (IRNASA-CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain
- Department of Biology, Duke University, 130 Science Dr, Durham, NC 27710, USA
| | - Francisco Barro
- Department of Plant Biotechnology, Institute for Sustainable Agriculture, Spanish National Research Council (IAS-CSIC), Avenida Menéndez Pidal s/n, Campus Alameda del Obispo, 14004 Córdoba, Spain
| | - Ana Martínez-Castilla
- Department of Plant Biotechnology, Institute for Sustainable Agriculture, Spanish National Research Council (IAS-CSIC), Avenida Menéndez Pidal s/n, Campus Alameda del Obispo, 14004 Córdoba, Spain
| | - Virginia González-Blanco
- Unit of Plant-Microorganism Interactions, Institute of Natural Resources and Agrobiology of Salamanca, Spanish National Research Council (IRNASA-CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain
| | - Beatriz R Vázquez de Aldana
- Unit of Plant-Microorganism Interactions, Institute of Natural Resources and Agrobiology of Salamanca, Spanish National Research Council (IRNASA-CSIC), Cordel de Merinas 40-52, 37008 Salamanca, Spain
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Caldelas C, Rezzouk FZ, Aparicio Gutiérrez N, Diez–Fraile MC, Araus Ortega JL. Interaction of genotype, water availability, and nitrogen fertilization on the mineral content of wheat grain. Food Chem 2023; 404:134565. [DOI: 10.1016/j.foodchem.2022.134565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/16/2022] [Accepted: 10/08/2022] [Indexed: 11/22/2022]
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Gojon A, Cassan O, Bach L, Lejay L, Martin A. The decline of plant mineral nutrition under rising CO 2: physiological and molecular aspects of a bad deal. TRENDS IN PLANT SCIENCE 2023; 28:185-198. [PMID: 36336557 DOI: 10.1016/j.tplants.2022.09.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 09/13/2022] [Accepted: 09/28/2022] [Indexed: 05/26/2023]
Abstract
The elevation of atmospheric CO2 concentration has a strong impact on the physiology of C3 plants, far beyond photosynthesis and C metabolism. In particular, it reduces the concentrations of most mineral nutrients in plant tissues, posing major threats on crop quality, nutrient cycles, and carbon sinks in terrestrial agro-ecosystems. The causes of the detrimental effect of high CO2 levels on plant mineral status are not understood. We provide an update on the main hypotheses and review the increasing evidence that, for nitrogen, this detrimental effect is associated with direct inhibition of key mechanisms of nitrogen uptake and assimilation. We also mention promising strategies for identifying genotypes that will maintain robust nutrient status in a future high-CO2 world.
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Affiliation(s)
- Alain Gojon
- Institut des Sciences des Plantes de Montpellier (IPSiM), Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Institut Agro, Montpellier, France
| | - Océane Cassan
- Institut des Sciences des Plantes de Montpellier (IPSiM), Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Institut Agro, Montpellier, France
| | - Liên Bach
- Institut des Sciences des Plantes de Montpellier (IPSiM), Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Institut Agro, Montpellier, France
| | - Laurence Lejay
- Institut des Sciences des Plantes de Montpellier (IPSiM), Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Institut Agro, Montpellier, France
| | - Antoine Martin
- Institut des Sciences des Plantes de Montpellier (IPSiM), Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Institut Agro, Montpellier, France.
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Physiological and Antioxidant Response to Different Water Deficit Regimes of Flag Leaves and Ears of Wheat Grown under Combined Elevated CO2 and High Temperature. PLANTS 2022; 11:plants11182384. [PMID: 36145784 PMCID: PMC9504337 DOI: 10.3390/plants11182384] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/02/2022] [Accepted: 09/09/2022] [Indexed: 11/21/2022]
Abstract
Triticum aestivum L. cv. Gazul is a spring wheat widely cultivated in Castilla y León (Spain). Potted plants were grown in a scenario emulating the climate change environmental conditions expected by the end of this century, i.e., with elevated CO2 and high temperature under two water deficit regimes: long (LWD) and terminal (TWD). Changes in biomass and morphology, the content of proline (Pro), ascorbate (AsA) and glutathione (GSH), and enzymatic antioxidant activities were analyzed in flag leaves and ears. Additionally, leaf gas exchange was measured. LWD caused a decrease in biomass and AsA content but an increase in Pro content and catalase and GSH reductase activities in flag leaves, whereas TWD produced no significant changes. Photosynthesis was enhanced under both water deficit regimes. Increase in superoxide dismutase activity and Pro content was only observed in ears under TWD. The lack of a more acute effect of LWD and TWD on both organs was attributed to the ROS relieving effect of elevated CO2. Gazul acted as a drought tolerant variety with anisohydric behavior. A multifactorial analysis showed better adaptation of ears to water deficit than flag leaves, underlining the importance of this finding for breeding programs to improve grain yield under future climate change.
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Tsivelikas AL, Ben Ghanem H, El-Baouchi A, Kehel Z. Single-Plant Selection at Ultra-Low Density Enhances Buffering Capacity of Barley Varieties and Landraces to Unpredictable Environments and Improves Their Agronomic Performance. FRONTIERS IN PLANT SCIENCE 2022; 13:838536. [PMID: 35251108 PMCID: PMC8895306 DOI: 10.3389/fpls.2022.838536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Rainfall and temperature are unpredictable factors in Mediterranean environments that result in irregular environmental conditions for crop growth, thus being a critical source of uncertainty for farmers. This study applied divergent single-plant selection for high and low yield within five barley varieties and two Tunisian landraces under semi-arid conditions at an ultra-low density of 1.2 plants/m2 for two consecutive years. Progeny evaluation under dense stands following farmers' practices was conducted in two semi-arid locations in Tunisia during one cropping season and in one location during a second season, totalling three environments. The results revealed significant genotypic effects for all recorded agronomic and physiological traits. No genotype × environment interaction was shown for biological yield, implying a biomass buffering capacity for selected lines under different environmental conditions. However, genotype × environment interaction was present in terms of grain yield since plasticity for biomass production under drought stress conditions was not translated directly to yield compensation for some of the lines. Nevertheless, several lines selected for high yield were identified to surpass their source material and best checks in each environment, while one line (IH4-4) outperformed consistently by 62.99% on average, in terms of grain yield, the best check across all environments. In addition, improved agronomic performance under drought conditions induced an indirect effect on some grain quality traits. Most of the lines selected for high yield maintained or even improved their grain protein content in comparison to their source material (average increase by 2.33%). On the other hand, most of the lines selected for low yield indicated a poor agronomic performance, further confirming the coherence between selection under ultra-low density and performance under dense stand.
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Affiliation(s)
- Athanasios L. Tsivelikas
- Genetic Resources Section, International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco
| | - Hajer Ben Ghanem
- Field Crop Laboratory, National Institute of Agricultural Research, University of Carthage, Tunis, Tunisia
| | - Adil El-Baouchi
- African Integrated Plant and Soil Research Group (AiPlaS), AgroBioSciences, Mohammed VI Polytechnic University, Ben Guerir, Morocco
| | - Zakaria Kehel
- Genetic Resources Section, International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco
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Theoretical and Experimental Considerations for a Rapid and High Throughput Measurement of Catalase In Vitro. Antioxidants (Basel) 2021; 11:antiox11010021. [PMID: 35052525 PMCID: PMC8773236 DOI: 10.3390/antiox11010021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/18/2021] [Accepted: 12/21/2021] [Indexed: 01/24/2023] Open
Abstract
A rapid and high throughput protocol to measure the catalase activity in vitro has been designed. Catalase is an enzyme with unusual kinetic properties because it does not follow the standard Michaelis–Menten model and is inactivated by H2O2. This makes the analysis of the two rate equations of the second-ordered reactions of the kinetic model rather complex. A two-degree polynomial fitting of the experimental data is proposed after transforming the exponential form of the integrated rate equation of the [H2O2] into a polynomial using the Taylor series. The fitting is validated by establishing an experimental linear relationship between the initial rate of the H2O2 decomposition and the protein concentration, regardless of the suicide inactivation that catalase might undergo beyond t > 0. In addition, experimental considerations are taken into account to avoid statistical bias in the analysis of the catalase activity. ANOVA analyses show that the proposed protocol can be utilized to measure the initial rate of the H2O2 decomposition by catalase in 32 samples in triplicates if kept below 8 mM min−1 in the microplate wells. These kinetic and statistical analyses can pave the way for other antioxidant enzyme activity assays in microplate readers at small scale and low cost.
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Marcos-Barbero EL, Pérez P, Martínez-Carrasco R, Arellano JB, Morcuende R. Screening for Higher Grain Yield and Biomass among Sixty Bread Wheat Genotypes Grown under Elevated CO 2 and High-Temperature Conditions. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10081596. [PMID: 34451641 PMCID: PMC8401911 DOI: 10.3390/plants10081596] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 06/01/2023]
Abstract
Global warming will inevitably affect crop development and productivity, increasing uncertainty regarding food production. The exploitation of genotypic variability can be a promising approach for selecting improved crop varieties that can counteract the adverse effects of future climate change. We investigated the natural variation in yield performance under combined elevated CO2 and high-temperature conditions in a set of 60 bread wheat genotypes (59 of the 8TH HTWSN CIMMYT collection and Gazul). Plant height, biomass production, yield components and phenological traits were assessed. Large variations in the selected traits were observed across genotypes. The CIMMYT genotypes showed higher biomass and grain yield when compared to Gazul, indicating that the former performed better than the latter under the studied environmental conditions. Principal component and hierarchical clustering analyses revealed that the 60 wheat genotypes employed different strategies to achieve final grain yield, highlighting that the genotypes that can preferentially increase grain and ear numbers per plant will display better yield responses under combined elevated levels of CO2 and temperature. This study demonstrates the success of the breeding programs under warmer temperatures and the plants' capacity to respond to the concurrence of certain environmental factors, opening new opportunities for the selection of widely adapted climate-resilient wheat genotypes.
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