Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)

Abstract The aim of the present research was to understand the impacts of foliar nitrogen and α-oxoglutarate on proline accumulation, photosynthesis, and ammonium assimilation of soybean seedlings subjected to drought stress. The data in the present study demonstrated that foliar α-oxoglutarate and...

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Main Authors: Zhijia Gai, Jingqi Liu, Lijun Cai, Jingtao Zhang, Lei Liu
Format: Article
Language:English
Published: Nature Portfolio 2022-08-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-18660-4
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author Zhijia Gai
Jingqi Liu
Lijun Cai
Jingtao Zhang
Lei Liu
author_facet Zhijia Gai
Jingqi Liu
Lijun Cai
Jingtao Zhang
Lei Liu
author_sort Zhijia Gai
collection DOAJ
description Abstract The aim of the present research was to understand the impacts of foliar nitrogen and α-oxoglutarate on proline accumulation, photosynthesis, and ammonium assimilation of soybean seedlings subjected to drought stress. The data in the present study demonstrated that foliar α-oxoglutarate and nitrogen significantly enhanced leaf glutamine synthetase (GS) activity, glutamate dehydrogenase (GDH) activity, glutamate content, proline content, relative water content (RWC) and photosynthesis of soybean seedlings exposed to drought stress at each stage. Accordingly, the ammonium content was significantly reduced by foliar α-oxoglutarate and nitrogen. These results suggested that a combination of foliar nitrogen plus α-oxoglutarate had an advantage over either foliar nitrogen or foliar α-oxoglutarate in increasing the proline accumulation under drought stress and a combination of foliar nitrogen plus α-oxoglutarate could better mitigate the adverse impacts of drought stress.
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spelling doaj.art-bcf2d55a589f469987e88d5cbe2e88032022-12-22T02:15:54ZengNature PortfolioScientific Reports2045-23222022-08-0112111110.1038/s41598-022-18660-4Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)Zhijia Gai0Jingqi Liu1Lijun Cai2Jingtao Zhang3Lei Liu4Jiamusi Branch, Heilongjiang Academy of Agricultural SciencesJiamusi Branch, Heilongjiang Academy of Agricultural SciencesJiamusi Branch, Heilongjiang Academy of Agricultural SciencesJiamusi Branch, Heilongjiang Academy of Agricultural SciencesCollege of Resources and Environment, Jilin Agricultural UniversityAbstract The aim of the present research was to understand the impacts of foliar nitrogen and α-oxoglutarate on proline accumulation, photosynthesis, and ammonium assimilation of soybean seedlings subjected to drought stress. The data in the present study demonstrated that foliar α-oxoglutarate and nitrogen significantly enhanced leaf glutamine synthetase (GS) activity, glutamate dehydrogenase (GDH) activity, glutamate content, proline content, relative water content (RWC) and photosynthesis of soybean seedlings exposed to drought stress at each stage. Accordingly, the ammonium content was significantly reduced by foliar α-oxoglutarate and nitrogen. These results suggested that a combination of foliar nitrogen plus α-oxoglutarate had an advantage over either foliar nitrogen or foliar α-oxoglutarate in increasing the proline accumulation under drought stress and a combination of foliar nitrogen plus α-oxoglutarate could better mitigate the adverse impacts of drought stress.https://doi.org/10.1038/s41598-022-18660-4
spellingShingle Zhijia Gai
Jingqi Liu
Lijun Cai
Jingtao Zhang
Lei Liu
Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)
Scientific Reports
title Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)
title_full Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)
title_fullStr Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)
title_full_unstemmed Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)
title_short Foliar application of alpha-ketoglutarate plus nitrogen improves drought resistance in soybean (Glycine max L. Merr.)
title_sort foliar application of alpha ketoglutarate plus nitrogen improves drought resistance in soybean glycine max l merr
url https://doi.org/10.1038/s41598-022-18660-4
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