Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants

A study was carried out to evaluate the effectiveness of sugar beet extract (SBE) and glycine betaine (GB) in mitigating the adverse effects of drought stress on two maize cultivars. Seeds (caryopses) of two maize cultivars, Sadaf (drought-tolerant) and Sultan (drought-sensitive) were sown in plasti...

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Autores principales:	Sidra Shafiq, Nudrat Aisha Akram, Muhammad Ashraf, Pedro García-Caparrós, Omar M. Ali, Arafat Abdel Hamed Abdel Latef
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	phytoextract maize biostimulants water deficit glycine betaine Botany QK1-989
Acceso en línea:	https://doaj.org/article/7b434f02bc9346de94042c58949c1fa7
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spelling	oai:doaj.org-article:7b434f02bc9346de94042c58949c1fa72021-11-25T18:47:31ZInfluence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants10.3390/plants101125402223-7747https://doaj.org/article/7b434f02bc9346de94042c58949c1fa72021-11-01T00:00:00Zhttps://www.mdpi.com/2223-7747/10/11/2540https://doaj.org/toc/2223-7747A study was carried out to evaluate the effectiveness of sugar beet extract (SBE) and glycine betaine (GB) in mitigating the adverse effects of drought stress on two maize cultivars. Seeds (caryopses) of two maize cultivars, Sadaf (drought-tolerant) and Sultan (drought-sensitive) were sown in plastic pots. Plants were subjected to different (100%, 75% and 60% field capacity (FC)) water regimes. Then, different levels of SBE (3% and 4%) and GB (3.65 and 3.84 g/L) were applied as a foliar spray after 30 days of water deficit stress. Drought stress significantly decreased plant growth and yield attributes, chlorophyll pigments, while it increased relative membrane permeability (RMP), levels of osmolytes (GB and proline), malondialdehyde (MDA), total phenolics and ascorbic acid as well as the activities of superoxide dismutase (SOD) and peroxidase (POD) enzymes in both maize cultivars. Exogenous application via foliar spray with SBR or GB improved plant growth and yield attributes, chlorophyll pigments, osmolyte concentration, total phenolics, ascorbic acid and the activities of reactive oxygen species (ROS) scavenging enzymes (SOD, POD and catalase; CAT), but reduced leaf RMP and MDA concentration. The results obtained in this study exhibit the role of foliar-applied biostimulants (natural and synthetic compounds) in enhancing the growth and yield of maize cultivars by upregulating the oxidative defense system and osmoprotectant accumulation under water deficit conditions.Sidra ShafiqNudrat Aisha AkramMuhammad AshrafPedro García-CaparrósOmar M. AliArafat Abdel Hamed Abdel LatefMDPI AGarticlephytoextractmaizebiostimulantswater deficitglycine betaineBotanyQK1-989ENPlants, Vol 10, Iss 2540, p 2540 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	phytoextract maize biostimulants water deficit glycine betaine Botany QK1-989
spellingShingle	phytoextract maize biostimulants water deficit glycine betaine Botany QK1-989 Sidra Shafiq Nudrat Aisha Akram Muhammad Ashraf Pedro García-Caparrós Omar M. Ali Arafat Abdel Hamed Abdel Latef Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants
description	A study was carried out to evaluate the effectiveness of sugar beet extract (SBE) and glycine betaine (GB) in mitigating the adverse effects of drought stress on two maize cultivars. Seeds (caryopses) of two maize cultivars, Sadaf (drought-tolerant) and Sultan (drought-sensitive) were sown in plastic pots. Plants were subjected to different (100%, 75% and 60% field capacity (FC)) water regimes. Then, different levels of SBE (3% and 4%) and GB (3.65 and 3.84 g/L) were applied as a foliar spray after 30 days of water deficit stress. Drought stress significantly decreased plant growth and yield attributes, chlorophyll pigments, while it increased relative membrane permeability (RMP), levels of osmolytes (GB and proline), malondialdehyde (MDA), total phenolics and ascorbic acid as well as the activities of superoxide dismutase (SOD) and peroxidase (POD) enzymes in both maize cultivars. Exogenous application via foliar spray with SBR or GB improved plant growth and yield attributes, chlorophyll pigments, osmolyte concentration, total phenolics, ascorbic acid and the activities of reactive oxygen species (ROS) scavenging enzymes (SOD, POD and catalase; CAT), but reduced leaf RMP and MDA concentration. The results obtained in this study exhibit the role of foliar-applied biostimulants (natural and synthetic compounds) in enhancing the growth and yield of maize cultivars by upregulating the oxidative defense system and osmoprotectant accumulation under water deficit conditions.
format	article
author	Sidra Shafiq Nudrat Aisha Akram Muhammad Ashraf Pedro García-Caparrós Omar M. Ali Arafat Abdel Hamed Abdel Latef
author_facet	Sidra Shafiq Nudrat Aisha Akram Muhammad Ashraf Pedro García-Caparrós Omar M. Ali Arafat Abdel Hamed Abdel Latef
author_sort	Sidra Shafiq
title	Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants
title_short	Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants
title_full	Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants
title_fullStr	Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants
title_full_unstemmed	Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants
title_sort	influence of glycine betaine (natural and synthetic) on growth, metabolism and yield production of drought-stressed maize (<i>zea mays</i> l.) plants
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7b434f02bc9346de94042c58949c1fa7
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Influence of Glycine Betaine (Natural and Synthetic) on Growth, Metabolism and Yield Production of Drought-Stressed Maize (<i>Zea mays</i> L.) Plants

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