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Studies focusing on terminal drought combined with heat impacts on plants of agronomic value remain scarce, and even less under field conditions. The objective of this study was to investigate leaf structural and ultrastructural changes induced by heat stress (HS) and drought stress (DS) during seed filling and their relationship with physiological variables and yield determination. Two soybean cultivars were grown in field conditions. During seed filling
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dc.contributor.author | Carrera, Constanza Soledad | |
dc.contributor.author | Solis, Stella M. | |
dc.contributor.author | Ferricci, María S. | |
dc.contributor.author | Vega, Claudia Rosa Cecilia | |
dc.contributor.author | Galati, Beatriz G. | |
dc.contributor.author | Ergo, Veronica Vanesa | |
dc.contributor.author | Andrade, Fernando Hector | |
dc.contributor.author | Lascano, Hernan Ramiro | |
dc.date.accessioned | 2021-08-11T11:29:08Z | |
dc.date.available | 2021-08-11T11:29:08Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0001-3765 | |
dc.identifier.issn | 1678-2690 (online) | |
dc.identifier.other | https://doi.org/10.1590/0001-3765202120191388 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/10001 | |
dc.identifier.uri | https://www.scielo.br/j/aabc/a/Ybf8nVnzvYGF5ptzdsWPdqx/abstract/?lang=en# | |
dc.description.abstract | Studies focusing on terminal drought combined with heat impacts on plants of agronomic value remain scarce, and even less under field conditions. The objective of this study was to investigate leaf structural and ultrastructural changes induced by heat stress (HS) and drought stress (DS) during seed filling and their relationship with physiological variables and yield determination. Two soybean cultivars were grown in field conditions. During seed filling four treatments were applied, including a control (without manipulation, at ambient temperature and field capacity), HS (episodes exceeding 32°C for 6 h d-1) during 21-d, DS (20% of field capacity soil water content) during 35-d, and HS×DS. Drought principally reduced leaf area, whereas heat decreased leaf thickness, possible as acclimation strategies, but also irreversible reducing CO2 assimilation sites. Both stresses damaged the outer and inner membranes of chloroplasts, causing swollen chloroplasts and accumulation of plastoglobules, loss of chlorophyll content, and negatively affecting chlorophyll fluorescence. Thus, the performance and integrity of the photosynthetic machinery were reduced. Through a morpho-functional perspective and a holistic multiscale approach, our results provide evidence of photosynthesis impairment and yield drops under stressful conditions which were associated with structural and ultrastructural (particularly at the level of chloroplasts) modifications of leaves. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Academia Brasileira de Ciências | es_AR |
dc.relation | info:eu-repograntAgreement/INTA/PNAGUA-1133032/AR./Herramientas para la mitigacion de la incidencia del estres abiótico en cultivos. | es_AR |
dc.relation | info:eu-repograntAgreement/INTA/PNCYO-1127042/AR./Bases ecofisiológicas para el mejoramiento genético y la calidad diferenciada de cereales y oleaginosas. | es_AR |
dc.rights | info:eu-repo/semantics/openAccess | es_AR |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
dc.source | Anais da Academia Brasileira de Ciências 93 (4) : e20191388 (2021) | es_AR |
dc.subject | Déficit Hídrico | es_AR |
dc.subject | Sequía | es_AR |
dc.subject | Estrés Térmico | es_AR |
dc.subject | Soybeans | eng |
dc.subject | Soja | |
dc.subject | Drought | eng |
dc.subject | Heat Stress | eng |
dc.subject | Water Shortage | eng |
dc.subject.other | Episodes of High Temperatures | eng |
dc.subject.other | Late Reproductive Development | eng |
dc.subject.other | Leaf Morpho-Anatomy | eng |
dc.subject.other | Leaf Photosynthetic Performance | eng |
dc.subject.other | Seed Number and Weight | eng |
dc.subject.other | Water Deficit | es_AR |
dc.title | Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.rights.license | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
dc.description.origen | Instituto de Fisiología y Recursos Genéticos Vegetales | es_AR |
dc.description.fil | Fil: Carrera, Constanza Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina | es_AR |
dc.description.fil | Fil: Carrera, Constanza Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina | es_AR |
dc.description.fil | Fil: Solis, Stella M. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste (IBONE); Argentina | es_AR |
dc.description.fil | Fil: Solis, Stella M. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Cátedra de Morfología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: Ferricci, María S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina | es_AR |
dc.description.fil | Fil: Ferricci, María S. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste (IBONE); Argentina | es_AR |
dc.description.fil | Fil: Vega, Claudia Rosa Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina | es_AR |
dc.description.fil | Fil: Galati, Beatriz G. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Botánico General; Argentina | es_AR |
dc.description.fil | Fil: Ergo, Verónica Vanesa. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: Ergo, Verónica Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina | es_AR |
dc.description.fil | Fil: Andrade, Fernando Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Ecofisiología de cultivos; Argentina | es_AR |
dc.description.fil | Fil: Andrade, Fernando Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina | es_AR |
dc.description.fil | Fil: Lascano, Hernán Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal. Argentina | es_AR |
dc.description.fil | Fil: Lascano, Hernán Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA). Argentina | es_AR |
dc.subtype | cientifico |
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