Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield
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...
| Autores principales: | , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Academia Brasileira de Ciências
2021
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/10001 https://www.scielo.br/j/aabc/a/Ybf8nVnzvYGF5ptzdsWPdqx/abstract/?lang=en# https://doi.org/10.1590/0001-3765202120191388 |
| _version_ | 1855036299131486208 |
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| author | Carrera, Constanza Soledad Solis, Stella M. Ferricci, María S. Vega, Claudia Rosa Cecilia Galati, Beatriz G. Ergo, Veronica Vanesa Andrade, Fernando Hector Lascano, Hernan Ramiro |
| author_browse | Andrade, Fernando Hector Carrera, Constanza Soledad Ergo, Veronica Vanesa Ferricci, María S. Galati, Beatriz G. Lascano, Hernan Ramiro Solis, Stella M. Vega, Claudia Rosa Cecilia |
| author_facet | Carrera, Constanza Soledad Solis, Stella M. Ferricci, María S. Vega, Claudia Rosa Cecilia Galati, Beatriz G. Ergo, Veronica Vanesa Andrade, Fernando Hector Lascano, Hernan Ramiro |
| author_sort | Carrera, Constanza Soledad |
| collection | INTA Digital |
| description | 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA10001 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Academia Brasileira de Ciências |
| publisherStr | Academia Brasileira de Ciências |
| record_format | dspace |
| spelling | INTA100012021-08-11T11:44:38Z Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield Carrera, Constanza Soledad Solis, Stella M. Ferricci, María S. Vega, Claudia Rosa Cecilia Galati, Beatriz G. Ergo, Veronica Vanesa Andrade, Fernando Hector Lascano, Hernan Ramiro Déficit Hídrico Sequía Estrés Térmico Soybeans Drought Heat Stress Water Shortage Soja Episodes of High Temperatures Late Reproductive Development Leaf Morpho-Anatomy Leaf Photosynthetic Performance Seed Number and Weight Water Deficit 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. Instituto de Fisiología y Recursos Genéticos Vegetales Fil: Carrera, Constanza Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina Fil: Carrera, Constanza Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina Fil: Solis, Stella M. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste (IBONE); Argentina Fil: Solis, Stella M. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Cátedra de Morfología Vegetal; Argentina Fil: Ferricci, María S. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ferricci, María S. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste (IBONE); Argentina Fil: Vega, Claudia Rosa Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Galati, Beatriz G. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Botánico General; Argentina Fil: Ergo, Verónica Vanesa. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina Fil: Ergo, Verónica Vanesa. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina Fil: Andrade, Fernando Hector. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Ecofisiología de cultivos; Argentina Fil: Andrade, Fernando Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; Argentina Fil: Lascano, Hernán Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal. Argentina Fil: Lascano, Hernán Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA). Argentina 2021-08-11T11:29:08Z 2021-08-11T11:29:08Z 2021 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10001 https://www.scielo.br/j/aabc/a/Ybf8nVnzvYGF5ptzdsWPdqx/abstract/?lang=en# 0001-3765 1678-2690 (online) https://doi.org/10.1590/0001-3765202120191388 eng info:eu-repograntAgreement/INTA/PNAGUA-1133032/AR./Herramientas para la mitigacion de la incidencia del estres abiótico en cultivos. info:eu-repograntAgreement/INTA/PNCYO-1127042/AR./Bases ecofisiológicas para el mejoramiento genético y la calidad diferenciada de cereales y oleaginosas. info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências 93 (4) : e20191388 (2021) |
| spellingShingle | Déficit Hídrico Sequía Estrés Térmico Soybeans Drought Heat Stress Water Shortage Soja Episodes of High Temperatures Late Reproductive Development Leaf Morpho-Anatomy Leaf Photosynthetic Performance Seed Number and Weight Water Deficit Carrera, Constanza Soledad Solis, Stella M. Ferricci, María S. Vega, Claudia Rosa Cecilia Galati, Beatriz G. Ergo, Veronica Vanesa Andrade, Fernando Hector Lascano, Hernan Ramiro Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield |
| 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 |
| title_full | Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield |
| title_fullStr | Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield |
| title_full_unstemmed | Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield |
| title_short | Leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field-grown soybean and their relationship with grain yield |
| title_sort | leaf structure and ultrastructure changes induced by heat stress and drought during seed filling in field grown soybean and their relationship with grain yield |
| topic | Déficit Hídrico Sequía Estrés Térmico Soybeans Drought Heat Stress Water Shortage Soja Episodes of High Temperatures Late Reproductive Development Leaf Morpho-Anatomy Leaf Photosynthetic Performance Seed Number and Weight Water Deficit |
| url | http://hdl.handle.net/20.500.12123/10001 https://www.scielo.br/j/aabc/a/Ybf8nVnzvYGF5ptzdsWPdqx/abstract/?lang=en# https://doi.org/10.1590/0001-3765202120191388 |
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