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Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley

This study aimed to investigate the combined effect of high temperatures 10 °C above the optimum and water withholding during microgametogenesis on vegetative processes and determine the response of winter barley genotypes with contrasting tolerance. For this purpose, two barley varieties were analy...

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Autores principales: Jampoh, Emmanuel Asante, Sáfrán, Eszter, Babinyec-Czifra, Dorina, Kristóf, Zoltán, Krárné Péntek, Barbara, Fábián, Attila, Barnabás, Beáta, Jäger, Katalin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10674999/
https://www.ncbi.nlm.nih.gov/pubmed/38005804
http://dx.doi.org/10.3390/plants12223907
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author Jampoh, Emmanuel Asante
Sáfrán, Eszter
Babinyec-Czifra, Dorina
Kristóf, Zoltán
Krárné Péntek, Barbara
Fábián, Attila
Barnabás, Beáta
Jäger, Katalin
author_facet Jampoh, Emmanuel Asante
Sáfrán, Eszter
Babinyec-Czifra, Dorina
Kristóf, Zoltán
Krárné Péntek, Barbara
Fábián, Attila
Barnabás, Beáta
Jäger, Katalin
author_sort Jampoh, Emmanuel Asante
collection PubMed
description This study aimed to investigate the combined effect of high temperatures 10 °C above the optimum and water withholding during microgametogenesis on vegetative processes and determine the response of winter barley genotypes with contrasting tolerance. For this purpose, two barley varieties were analyzed to compare the effect of heat and drought co-stress on their phenology, morpho-anatomy, physiological and biochemical responses and yield constituents. Genotypic variation was observed in response to heat and drought co-stress, which was attributed to differences in anatomy, ultrastructure and physiological and metabolic processes. The co-stress-induced reduction in relative water content, total soluble protein and carbohydrate contents, photosynthetic pigment contents and photosynthetic efficiency of the sensitive Spinner variety was significantly greater than the tolerant Lambada genotype. Based on these observations, it has been concluded that the heat-and-drought stress-tolerance of the Lambada variety is related to the lower initial chlorophyll content of the leaves, the relative resistance of photosynthetic pigments towards stress-triggered degradation, retained photosynthetic parameters and better-preserved leaf ultrastructure. Understanding the key factors underlying heat and drought co-stress tolerance in barley may enable breeders to create barley varieties with improved yield stability under a changing climate.
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spelling pubmed-106749992023-11-20 Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley Jampoh, Emmanuel Asante Sáfrán, Eszter Babinyec-Czifra, Dorina Kristóf, Zoltán Krárné Péntek, Barbara Fábián, Attila Barnabás, Beáta Jäger, Katalin Plants (Basel) Article This study aimed to investigate the combined effect of high temperatures 10 °C above the optimum and water withholding during microgametogenesis on vegetative processes and determine the response of winter barley genotypes with contrasting tolerance. For this purpose, two barley varieties were analyzed to compare the effect of heat and drought co-stress on their phenology, morpho-anatomy, physiological and biochemical responses and yield constituents. Genotypic variation was observed in response to heat and drought co-stress, which was attributed to differences in anatomy, ultrastructure and physiological and metabolic processes. The co-stress-induced reduction in relative water content, total soluble protein and carbohydrate contents, photosynthetic pigment contents and photosynthetic efficiency of the sensitive Spinner variety was significantly greater than the tolerant Lambada genotype. Based on these observations, it has been concluded that the heat-and-drought stress-tolerance of the Lambada variety is related to the lower initial chlorophyll content of the leaves, the relative resistance of photosynthetic pigments towards stress-triggered degradation, retained photosynthetic parameters and better-preserved leaf ultrastructure. Understanding the key factors underlying heat and drought co-stress tolerance in barley may enable breeders to create barley varieties with improved yield stability under a changing climate. MDPI 2023-11-20 /pmc/articles/PMC10674999/ /pubmed/38005804 http://dx.doi.org/10.3390/plants12223907 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jampoh, Emmanuel Asante
Sáfrán, Eszter
Babinyec-Czifra, Dorina
Kristóf, Zoltán
Krárné Péntek, Barbara
Fábián, Attila
Barnabás, Beáta
Jäger, Katalin
Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley
title Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley
title_full Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley
title_fullStr Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley
title_full_unstemmed Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley
title_short Morpho-Anatomical, Physiological and Biochemical Adjustments in Response to Heat and Drought Co-Stress in Winter Barley
title_sort morpho-anatomical, physiological and biochemical adjustments in response to heat and drought co-stress in winter barley
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10674999/
https://www.ncbi.nlm.nih.gov/pubmed/38005804
http://dx.doi.org/10.3390/plants12223907
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