Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants

Garlic is an important vegetable in terms of its economic value and also as a medicinal plant. In this study, chitosan (300 mM) and yeast extract (8 g/L) were used individually or in combination to improve the yields of garlic plants under drought conditions (i.e., 75% and 50% of the water they woul...

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Autores principales:	Khaled Abdelaal, Kotb A. Attia, Gniewko Niedbała, Tomasz Wojciechowski, Yaser Hafez, Salman Alamery, Talal K. Alateeq, Sally A. Arafa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	garlic drought stress chitosan yeast antioxidant system reactive oxygen species Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/4435b1e9e4cc40fbbd9102f55af90c94
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spelling	oai:doaj.org-article:4435b1e9e4cc40fbbd9102f55af90c942021-11-25T17:47:45ZMitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants10.3390/horticulturae71105102311-7524https://doaj.org/article/4435b1e9e4cc40fbbd9102f55af90c942021-11-01T00:00:00Zhttps://www.mdpi.com/2311-7524/7/11/510https://doaj.org/toc/2311-7524Garlic is an important vegetable in terms of its economic value and also as a medicinal plant. In this study, chitosan (300 mM) and yeast extract (8 g/L) were used individually or in combination to improve the yields of garlic plants under drought conditions (i.e., 75% and 50% of the water they would normally receive from irrigation) for two seasons. Significant decreases in numbers of leaves per plant and plant height, plant dry weight, relative water content, and chlorophyll a and b concentrations were found in stressed garlic plants in both seasons. The greatest reductions in these characters were recorded in plants that received only 50% of the normal irrigation in both seasons. Levels of hydrogen peroxide, products of lipid peroxidation such as malondialdehyde, and superoxide, as well as percentages of electrolyte leakage, were elevated considerably and were signals of oxidative damage. The application of the yeast extract (8 g/L) or chitosan (300 mM) individually or in combination led to a remarkable increase in the most studied characters of the stressed garlic plants. The combination of yeast extract (8 g/L) plus chitosan (300 mM) led to increase plant height (44%), ascorbic acid levels (30.2%), and relative water content (36.8%), as well as the chlorophyll a (50.7%) and b concentrations (79%), regulated the proline content and levels of antioxidant enzymes in stressed garlic plants that received 75% of the normal irrigation, and this decreased the signs of oxidative stress (i.e., percentage of electrolyte leakage and levels of malondialdehyde, hydrogen peroxide, and superoxide).Khaled AbdelaalKotb A. AttiaGniewko NiedbałaTomasz WojciechowskiYaser HafezSalman AlameryTalal K. AlateeqSally A. ArafaMDPI AGarticlegarlicdrought stresschitosanyeastantioxidant systemreactive oxygen speciesPlant cultureSB1-1110ENHorticulturae, Vol 7, Iss 510, p 510 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	garlic drought stress chitosan yeast antioxidant system reactive oxygen species Plant culture SB1-1110
spellingShingle	garlic drought stress chitosan yeast antioxidant system reactive oxygen species Plant culture SB1-1110 Khaled Abdelaal Kotb A. Attia Gniewko Niedbała Tomasz Wojciechowski Yaser Hafez Salman Alamery Talal K. Alateeq Sally A. Arafa Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants
description	Garlic is an important vegetable in terms of its economic value and also as a medicinal plant. In this study, chitosan (300 mM) and yeast extract (8 g/L) were used individually or in combination to improve the yields of garlic plants under drought conditions (i.e., 75% and 50% of the water they would normally receive from irrigation) for two seasons. Significant decreases in numbers of leaves per plant and plant height, plant dry weight, relative water content, and chlorophyll a and b concentrations were found in stressed garlic plants in both seasons. The greatest reductions in these characters were recorded in plants that received only 50% of the normal irrigation in both seasons. Levels of hydrogen peroxide, products of lipid peroxidation such as malondialdehyde, and superoxide, as well as percentages of electrolyte leakage, were elevated considerably and were signals of oxidative damage. The application of the yeast extract (8 g/L) or chitosan (300 mM) individually or in combination led to a remarkable increase in the most studied characters of the stressed garlic plants. The combination of yeast extract (8 g/L) plus chitosan (300 mM) led to increase plant height (44%), ascorbic acid levels (30.2%), and relative water content (36.8%), as well as the chlorophyll a (50.7%) and b concentrations (79%), regulated the proline content and levels of antioxidant enzymes in stressed garlic plants that received 75% of the normal irrigation, and this decreased the signs of oxidative stress (i.e., percentage of electrolyte leakage and levels of malondialdehyde, hydrogen peroxide, and superoxide).
format	article
author	Khaled Abdelaal Kotb A. Attia Gniewko Niedbała Tomasz Wojciechowski Yaser Hafez Salman Alamery Talal K. Alateeq Sally A. Arafa
author_facet	Khaled Abdelaal Kotb A. Attia Gniewko Niedbała Tomasz Wojciechowski Yaser Hafez Salman Alamery Talal K. Alateeq Sally A. Arafa
author_sort	Khaled Abdelaal
title	Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants
title_short	Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants
title_full	Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants
title_fullStr	Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants
title_full_unstemmed	Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants
title_sort	mitigation of drought damages by exogenous chitosan and yeast extract with modulating the photosynthetic pigments, antioxidant defense system and improving the productivity of garlic plants
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/4435b1e9e4cc40fbbd9102f55af90c94
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Mitigation of Drought Damages by Exogenous Chitosan and Yeast Extract with Modulating the Photosynthetic Pigments, Antioxidant Defense System and Improving the Productivity of Garlic Plants

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