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Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil

INTRODUCTION: Soil salinization poses a worldwide challenge that hampers agricultural productivity. METHODS: Employing high-throughput sequencing technology, we conducted an investigation to examine the impact of compost on the diversity of bacterial communities in saline soils. Our study focused on...

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Autores principales: Xu, Daolong, Yu, Xiaowen, Chen, Jin, Li, Xiufen, Chen, Jian, Li, JiangHua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10565496/
https://www.ncbi.nlm.nih.gov/pubmed/37829448
http://dx.doi.org/10.3389/fmicb.2023.1253415
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author Xu, Daolong
Yu, Xiaowen
Chen, Jin
Li, Xiufen
Chen, Jian
Li, JiangHua
author_facet Xu, Daolong
Yu, Xiaowen
Chen, Jin
Li, Xiufen
Chen, Jian
Li, JiangHua
author_sort Xu, Daolong
collection PubMed
description INTRODUCTION: Soil salinization poses a worldwide challenge that hampers agricultural productivity. METHODS: Employing high-throughput sequencing technology, we conducted an investigation to examine the impact of compost on the diversity of bacterial communities in saline soils. Our study focused on exploring the diversity of bacterial communities in the inter-root soil of plants following composting and the subsequent addition of compost to saline soils. RESULTS: Compared to the initial composting stage, Alpha diversity results showed a greater diversity of bacteria during the rot stage. The germination index reaches 90% and the compost reaches maturity. The main bacterial genera in compost maturation stage are Flavobacterium, Saccharomonospora, Luteimonas and Streptomyces. Proteobacteria, Firmicutes, and Actinobacteria were the dominant phyla in the soil after the addition of compost. The application of compost has increased the abundance of Actinobacteria and Chloroflexi by 7.6 and 6.6%, respectively, but decreased the abundance of Firmicutes from 25.12 to 18.77%. Redundancy analysis revealed that soil factors pH, solid urease, organic matter, and total nitrogen were closely related to bacterial communities. DISCUSSION: The addition of compost effectively reduced soil pH and increased soil enzyme activity and organic matter content. An analysis of this study provides theoretical support for compost’s use as a saline soil amendment.
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spelling pubmed-105654962023-10-12 Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil Xu, Daolong Yu, Xiaowen Chen, Jin Li, Xiufen Chen, Jian Li, JiangHua Front Microbiol Microbiology INTRODUCTION: Soil salinization poses a worldwide challenge that hampers agricultural productivity. METHODS: Employing high-throughput sequencing technology, we conducted an investigation to examine the impact of compost on the diversity of bacterial communities in saline soils. Our study focused on exploring the diversity of bacterial communities in the inter-root soil of plants following composting and the subsequent addition of compost to saline soils. RESULTS: Compared to the initial composting stage, Alpha diversity results showed a greater diversity of bacteria during the rot stage. The germination index reaches 90% and the compost reaches maturity. The main bacterial genera in compost maturation stage are Flavobacterium, Saccharomonospora, Luteimonas and Streptomyces. Proteobacteria, Firmicutes, and Actinobacteria were the dominant phyla in the soil after the addition of compost. The application of compost has increased the abundance of Actinobacteria and Chloroflexi by 7.6 and 6.6%, respectively, but decreased the abundance of Firmicutes from 25.12 to 18.77%. Redundancy analysis revealed that soil factors pH, solid urease, organic matter, and total nitrogen were closely related to bacterial communities. DISCUSSION: The addition of compost effectively reduced soil pH and increased soil enzyme activity and organic matter content. An analysis of this study provides theoretical support for compost’s use as a saline soil amendment. Frontiers Media S.A. 2023-09-27 /pmc/articles/PMC10565496/ /pubmed/37829448 http://dx.doi.org/10.3389/fmicb.2023.1253415 Text en Copyright © 2023 Xu, Yu, Chen, Li, Chen and Li. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Xu, Daolong
Yu, Xiaowen
Chen, Jin
Li, Xiufen
Chen, Jian
Li, JiangHua
Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
title Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
title_full Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
title_fullStr Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
title_full_unstemmed Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
title_short Effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
title_sort effects of compost as a soil amendment on bacterial community diversity in saline–alkali soil
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10565496/
https://www.ncbi.nlm.nih.gov/pubmed/37829448
http://dx.doi.org/10.3389/fmicb.2023.1253415
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