The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons

Abstract Soil labile organic carbon (LOC) responds rapidly to environmental changes and plays an important role in carbon cycle. In this study, the seasonal fluctuations in LOC, the activities of carbon-cycle related enzymes, and the bacterial and fungal communities were analyzed for soils collected...

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Autores principales:	Chen-yang Xu, Can Du, Jin-shi Jian, Lin Hou, Zhi-kang Wang, Qiang Wang, Zeng-chao Geng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b06fa35d50b745b4b64177a1ecd7e3dd
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spelling	oai:doaj.org-article:b06fa35d50b745b4b64177a1ecd7e3dd2021-12-02T11:37:27ZThe interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons10.1038/s41598-021-84217-62045-2322https://doaj.org/article/b06fa35d50b745b4b64177a1ecd7e3dd2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84217-6https://doaj.org/toc/2045-2322Abstract Soil labile organic carbon (LOC) responds rapidly to environmental changes and plays an important role in carbon cycle. In this study, the seasonal fluctuations in LOC, the activities of carbon-cycle related enzymes, and the bacterial and fungal communities were analyzed for soils collected from two forests, namely Betula albosinensis (Ba) and Picea asperata Mast. (Pa), in the Qinling Mountains of China. Results revealed that the seasonal average contents of microbial biomass carbon (MBC), easily oxidized organic carbon (EOC), and dissolved organic carbon (DOC) of Pa forest soil were 13.5%, 30.0% and 15.7% less than those in Ba soil. The seasonal average enzyme activities of β-1,4-glucosidase (βG), and β-1,4-xylosidase (βX) of Ba forest soils were 30.0% and 32.3% higher than those of Pa soil while the enzyme activity of cellobiohydrolase (CBH) was 19.7% lower. Furthermore, the relative abundance of Acidobacteria was significantly higher in summer than in winter, whereas the relative abundance of Bacteroidetes was higher in winter. Regarding the fungal communities, the relative abundance of Basidiomycota was lowest in winter, whereas Ascomycota predominated in the same season. In addition, the soil LOC was significantly positively correlated with the CBH, βG and βX activities. Changes in LOC were significantly correlated with Acidobacteria, Bacteroidetes and Basidiomycota. We conclude that the seasonal fluctuations in forest soil LOC fractions relied on carbon cycle-associated enzymatic activities and microorganisms, which in turn were affected by climatic conditions.Chen-yang XuCan DuJin-shi JianLin HouZhi-kang WangQiang WangZeng-chao GengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Chen-yang Xu Can Du Jin-shi Jian Lin Hou Zhi-kang Wang Qiang Wang Zeng-chao Geng The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
description	Abstract Soil labile organic carbon (LOC) responds rapidly to environmental changes and plays an important role in carbon cycle. In this study, the seasonal fluctuations in LOC, the activities of carbon-cycle related enzymes, and the bacterial and fungal communities were analyzed for soils collected from two forests, namely Betula albosinensis (Ba) and Picea asperata Mast. (Pa), in the Qinling Mountains of China. Results revealed that the seasonal average contents of microbial biomass carbon (MBC), easily oxidized organic carbon (EOC), and dissolved organic carbon (DOC) of Pa forest soil were 13.5%, 30.0% and 15.7% less than those in Ba soil. The seasonal average enzyme activities of β-1,4-glucosidase (βG), and β-1,4-xylosidase (βX) of Ba forest soils were 30.0% and 32.3% higher than those of Pa soil while the enzyme activity of cellobiohydrolase (CBH) was 19.7% lower. Furthermore, the relative abundance of Acidobacteria was significantly higher in summer than in winter, whereas the relative abundance of Bacteroidetes was higher in winter. Regarding the fungal communities, the relative abundance of Basidiomycota was lowest in winter, whereas Ascomycota predominated in the same season. In addition, the soil LOC was significantly positively correlated with the CBH, βG and βX activities. Changes in LOC were significantly correlated with Acidobacteria, Bacteroidetes and Basidiomycota. We conclude that the seasonal fluctuations in forest soil LOC fractions relied on carbon cycle-associated enzymatic activities and microorganisms, which in turn were affected by climatic conditions.
format	article
author	Chen-yang Xu Can Du Jin-shi Jian Lin Hou Zhi-kang Wang Qiang Wang Zeng-chao Geng
author_facet	Chen-yang Xu Can Du Jin-shi Jian Lin Hou Zhi-kang Wang Qiang Wang Zeng-chao Geng
author_sort	Chen-yang Xu
title	The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
title_short	The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
title_full	The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
title_fullStr	The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
title_full_unstemmed	The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
title_sort	interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b06fa35d50b745b4b64177a1ecd7e3dd
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The interplay of labile organic carbon, enzyme activities and microbial communities of two forest soils across seasons

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