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Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity

Some microbes enhance stress tolerance in plants by minimizing plant ethylene levels via degradation of its immediate precursor, 1-aminocyclopropane-1-carboxylate (ACC), in the rhizosphere. In return, ACC is used by these microbes as a source of nitrogen. This mutualistic relationship between plants...

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Autores principales: Liu, Hongwei, Khan, Muhammad Yahya, Carvalhais, Lilia C., Delgado-Baquerizo, Manuel, Yan, Lijuan, Crawford, Mark, Dennis, Paul G., Singh, Brajesh, Schenk, Peer M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6499801/
https://www.ncbi.nlm.nih.gov/pubmed/31053834
http://dx.doi.org/10.1038/s41598-019-43305-4
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author Liu, Hongwei
Khan, Muhammad Yahya
Carvalhais, Lilia C.
Delgado-Baquerizo, Manuel
Yan, Lijuan
Crawford, Mark
Dennis, Paul G.
Singh, Brajesh
Schenk, Peer M.
author_facet Liu, Hongwei
Khan, Muhammad Yahya
Carvalhais, Lilia C.
Delgado-Baquerizo, Manuel
Yan, Lijuan
Crawford, Mark
Dennis, Paul G.
Singh, Brajesh
Schenk, Peer M.
author_sort Liu, Hongwei
collection PubMed
description Some microbes enhance stress tolerance in plants by minimizing plant ethylene levels via degradation of its immediate precursor, 1-aminocyclopropane-1-carboxylate (ACC), in the rhizosphere. In return, ACC is used by these microbes as a source of nitrogen. This mutualistic relationship between plants and microbes may be used to promote soil properties in stressful environments. In this study, we tested the hypothesis that amendments of ACC in soils reshape the structure of soil microbiome and alleviate the negative impacts of salinity on soil properties. We treated non-saline and artificially-developed saline soils with ACC in different concentrations for 14 days. The structure of soil microbiome, soil microbial properties and productivity were examined. Our results revealed that microbial composition of bacteria, archaea and fungi in saline soils was affected by ACC amendments; whereas community composition in non-saline soils was not affected. The amendments of ACC could not fully counteract the negative effects of salinity on soil microbial activities and productivity, but increased the abundance of ACC deaminase-encoding gene (acdS), enhanced soil microbial respiration, enzymatic activity, nitrogen and carbon cycling potentials and Arabidopsis biomass in saline soils. Collectively, our study indicates that ACC amendments in soils could efficiently ameliorate salinity impacts on soil properties and plant biomass production.
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spelling pubmed-64998012019-05-17 Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity Liu, Hongwei Khan, Muhammad Yahya Carvalhais, Lilia C. Delgado-Baquerizo, Manuel Yan, Lijuan Crawford, Mark Dennis, Paul G. Singh, Brajesh Schenk, Peer M. Sci Rep Article Some microbes enhance stress tolerance in plants by minimizing plant ethylene levels via degradation of its immediate precursor, 1-aminocyclopropane-1-carboxylate (ACC), in the rhizosphere. In return, ACC is used by these microbes as a source of nitrogen. This mutualistic relationship between plants and microbes may be used to promote soil properties in stressful environments. In this study, we tested the hypothesis that amendments of ACC in soils reshape the structure of soil microbiome and alleviate the negative impacts of salinity on soil properties. We treated non-saline and artificially-developed saline soils with ACC in different concentrations for 14 days. The structure of soil microbiome, soil microbial properties and productivity were examined. Our results revealed that microbial composition of bacteria, archaea and fungi in saline soils was affected by ACC amendments; whereas community composition in non-saline soils was not affected. The amendments of ACC could not fully counteract the negative effects of salinity on soil microbial activities and productivity, but increased the abundance of ACC deaminase-encoding gene (acdS), enhanced soil microbial respiration, enzymatic activity, nitrogen and carbon cycling potentials and Arabidopsis biomass in saline soils. Collectively, our study indicates that ACC amendments in soils could efficiently ameliorate salinity impacts on soil properties and plant biomass production. Nature Publishing Group UK 2019-05-03 /pmc/articles/PMC6499801/ /pubmed/31053834 http://dx.doi.org/10.1038/s41598-019-43305-4 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Liu, Hongwei
Khan, Muhammad Yahya
Carvalhais, Lilia C.
Delgado-Baquerizo, Manuel
Yan, Lijuan
Crawford, Mark
Dennis, Paul G.
Singh, Brajesh
Schenk, Peer M.
Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
title Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
title_full Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
title_fullStr Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
title_full_unstemmed Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
title_short Soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
title_sort soil amendments with ethylene precursor alleviate negative impacts of salinity on soil microbial properties and productivity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6499801/
https://www.ncbi.nlm.nih.gov/pubmed/31053834
http://dx.doi.org/10.1038/s41598-019-43305-4
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