Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress

Soil salinity is a serious global problem that affects the vegetative growth and photosynthesis rates of plants. Additionally, a high salinity facilitates the accumulation of free radicals and reactive oxygen species (ROS), which induces an increase in the malondialdehyde, hydrogen peroxide, and pro...

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Autores principales:	Noura E. Mahmoud, Reda M. Abdelhameed
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Methionine Lysine Nanomaterials Plant growth Fodder crops Salinity stress Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/b65b8ad3c11e4e349905f2841df33974
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spelling	oai:doaj.org-article:b65b8ad3c11e4e349905f2841df339742021-12-04T04:36:35ZSuperiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress2667-064X10.1016/j.stress.2021.100025https://doaj.org/article/b65b8ad3c11e4e349905f2841df339742021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667064X21000245https://doaj.org/toc/2667-064XSoil salinity is a serious global problem that affects the vegetative growth and photosynthesis rates of plants. Additionally, a high salinity facilitates the accumulation of free radicals and reactive oxygen species (ROS), which induces an increase in the malondialdehyde, hydrogen peroxide, and proline contents, and a decrease in the antioxidant activity of enzymes, such as superoxide dismutase and peroxidase, reducing the fodder yield. Owing to limited availability of forage crops, extensive efforts have been devoted to studying the pearl millet (Pennisetum glaucum L.) plant, which is employed as a protein-rich fodder crop in its green and dry forms. Therefore, a field experiment was conducted to explore the effect of graphene oxide, methionine, lysine, methionine@graphene oxide, and lysine@graphene oxide on the growth, biomass accumulation, photosynthetic pigment content, total protein content, oxidative stress, and antioxidant response of the pearl millet plant. Modified graphene oxide (20 mg L−1) was applied two times to the fresh leaves of pearl millet after 30 and 60 days of cultivation. The salt concentrations in the soil and water in the area under consideration were 3.16 d.Sm−1 and 10.29 d.Sm−1, respectively. The treatments induced a significant improvement in plant growth, biomass accumulation, total protein content, photosynthetic pigment content, and yield. Similarly, the generation of ROS was reduced in the plant cells/tissues compared to the case in the plants grown under saline conditions. The foliar application of both graphene oxide and its modified structures enhanced the salinity stress tolerance of pearl millet by modulating its morphological and biophysical traits. This study offers new possibilities for the application of modified materials in agriculture and provides a valuable basis for improving plant tolerance and adaptability to salinity stress.Noura E. MahmoudReda M. AbdelhameedElsevierarticleMethionineLysineNanomaterialsPlant growthFodder cropsSalinity stressPlant ecologyQK900-989ENPlant Stress, Vol 2, Iss , Pp 100025- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Methionine Lysine Nanomaterials Plant growth Fodder crops Salinity stress Plant ecology QK900-989
spellingShingle	Methionine Lysine Nanomaterials Plant growth Fodder crops Salinity stress Plant ecology QK900-989 Noura E. Mahmoud Reda M. Abdelhameed Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress
description	Soil salinity is a serious global problem that affects the vegetative growth and photosynthesis rates of plants. Additionally, a high salinity facilitates the accumulation of free radicals and reactive oxygen species (ROS), which induces an increase in the malondialdehyde, hydrogen peroxide, and proline contents, and a decrease in the antioxidant activity of enzymes, such as superoxide dismutase and peroxidase, reducing the fodder yield. Owing to limited availability of forage crops, extensive efforts have been devoted to studying the pearl millet (Pennisetum glaucum L.) plant, which is employed as a protein-rich fodder crop in its green and dry forms. Therefore, a field experiment was conducted to explore the effect of graphene oxide, methionine, lysine, methionine@graphene oxide, and lysine@graphene oxide on the growth, biomass accumulation, photosynthetic pigment content, total protein content, oxidative stress, and antioxidant response of the pearl millet plant. Modified graphene oxide (20 mg L−1) was applied two times to the fresh leaves of pearl millet after 30 and 60 days of cultivation. The salt concentrations in the soil and water in the area under consideration were 3.16 d.Sm−1 and 10.29 d.Sm−1, respectively. The treatments induced a significant improvement in plant growth, biomass accumulation, total protein content, photosynthetic pigment content, and yield. Similarly, the generation of ROS was reduced in the plant cells/tissues compared to the case in the plants grown under saline conditions. The foliar application of both graphene oxide and its modified structures enhanced the salinity stress tolerance of pearl millet by modulating its morphological and biophysical traits. This study offers new possibilities for the application of modified materials in agriculture and provides a valuable basis for improving plant tolerance and adaptability to salinity stress.
format	article
author	Noura E. Mahmoud Reda M. Abdelhameed
author_facet	Noura E. Mahmoud Reda M. Abdelhameed
author_sort	Noura E. Mahmoud
title	Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress
title_short	Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress
title_full	Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress
title_fullStr	Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress
title_full_unstemmed	Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress
title_sort	superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (pennisetum glaucum l.) under salt stress
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/b65b8ad3c11e4e349905f2841df33974
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Superiority of modified graphene oxide for enhancing the growth, yield, and antioxidant potential of pearl millet (Pennisetum glaucum L.) under salt stress

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