Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system

Abstract To demonstrate the responses of plant (Pakchoi) and soil to poly-γ-glutamic acid (γ-PGA) is essential to better understand the pathways of the promotional effect of γ-PGA on plant growth. In this study, the effects of γ-PGA on soil nutrient availability, plant nutrient uptake ability, plant...

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Autores principales:	Lei Zhang, Xueming Yang, Decai Gao, Lingli Wang, Jie Li, Zhanbo Wei, Yuanliang Shi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/297eee41adcd497f8af383de2490e521
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spelling	oai:doaj.org-article:297eee41adcd497f8af383de2490e5212021-12-02T12:32:31ZEffects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system10.1038/s41598-017-06248-22045-2322https://doaj.org/article/297eee41adcd497f8af383de2490e5212017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06248-2https://doaj.org/toc/2045-2322Abstract To demonstrate the responses of plant (Pakchoi) and soil to poly-γ-glutamic acid (γ-PGA) is essential to better understand the pathways of the promotional effect of γ-PGA on plant growth. In this study, the effects of γ-PGA on soil nutrient availability, plant nutrient uptake ability, plant metabolism and its distribution in a plant-soil system were tested using labeled γ-PGA synthesized from 13C1-15N-L-glutamic acid (L-Glu). γ-PGA significantly improved plant uptake of nitrogen (N), phosphorus (P), and potassium (K) and hence increased plant biomass. γ-PGA greatly strengthened the plant nutrient uptake capacity through enhancing both root biomass and activity. γ-PGA affected carbon (C) and N metabolism in plant which was evidenced with increased soluble sugar contents and decreased nitrate and free amino acids contents. About 26.5% of the γ-PGA-N uptake during the first 24 h, after γ-PGA application, was in the form of intact organic molecular. At plant harvest, 29.7% and 59.4% of γ-PGA-15N was recovered in plant and soil, respectively, with a 5.64% of plant N nutrition being derived from γ-PGA-N. The improved plant nutrient uptake capacity and soil nutrient availability by γ-PGA may partly explain the promotional effect of γ-PGA, however, the underlying reason may be closely related to L-Glu.Lei ZhangXueming YangDecai GaoLingli WangJie LiZhanbo WeiYuanliang ShiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lei Zhang Xueming Yang Decai Gao Lingli Wang Jie Li Zhanbo Wei Yuanliang Shi Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system
description	Abstract To demonstrate the responses of plant (Pakchoi) and soil to poly-γ-glutamic acid (γ-PGA) is essential to better understand the pathways of the promotional effect of γ-PGA on plant growth. In this study, the effects of γ-PGA on soil nutrient availability, plant nutrient uptake ability, plant metabolism and its distribution in a plant-soil system were tested using labeled γ-PGA synthesized from 13C1-15N-L-glutamic acid (L-Glu). γ-PGA significantly improved plant uptake of nitrogen (N), phosphorus (P), and potassium (K) and hence increased plant biomass. γ-PGA greatly strengthened the plant nutrient uptake capacity through enhancing both root biomass and activity. γ-PGA affected carbon (C) and N metabolism in plant which was evidenced with increased soluble sugar contents and decreased nitrate and free amino acids contents. About 26.5% of the γ-PGA-N uptake during the first 24 h, after γ-PGA application, was in the form of intact organic molecular. At plant harvest, 29.7% and 59.4% of γ-PGA-15N was recovered in plant and soil, respectively, with a 5.64% of plant N nutrition being derived from γ-PGA-N. The improved plant nutrient uptake capacity and soil nutrient availability by γ-PGA may partly explain the promotional effect of γ-PGA, however, the underlying reason may be closely related to L-Glu.
format	article
author	Lei Zhang Xueming Yang Decai Gao Lingli Wang Jie Li Zhanbo Wei Yuanliang Shi
author_facet	Lei Zhang Xueming Yang Decai Gao Lingli Wang Jie Li Zhanbo Wei Yuanliang Shi
author_sort	Lei Zhang
title	Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system
title_short	Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system
title_full	Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system
title_fullStr	Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system
title_full_unstemmed	Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system
title_sort	effects of poly-γ-glutamic acid (γ-pga) on plant growth and its distribution in a controlled plant-soil system
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/297eee41adcd497f8af383de2490e521
work_keys_str_mv	AT leizhang effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem AT xuemingyang effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem AT decaigao effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem AT lingliwang effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem AT jieli effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem AT zhanbowei effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem AT yuanliangshi effectsofpolygglutamicacidgpgaonplantgrowthanditsdistributioninacontrolledplantsoilsystem
_version_	1718394027283316736

Effects of poly-γ-glutamic acid (γ-PGA) on plant growth and its distribution in a controlled plant-soil system

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