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Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass

Clipping, removal of aboveground plant biomass, is an important issue in grassland ecology. However, few studies have focused on the effect of clipping on belowground microbial communities. Using integrated metagenomic technologies, we examined the taxonomic and functional responses of soil microbia...

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Autores principales: Guo, Xue, Zhou, Xishu, Hale, Lauren, Yuan, Mengting, Feng, Jiajie, Ning, Daliang, Shi, Zhou, Qin, Yujia, Liu, Feifei, Wu, Liyou, He, Zhili, Van Nostrand, Joy D., Liu, Xueduan, Luo, Yiqi, Tiedje, James M., Zhou, Jizhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5990867/
https://www.ncbi.nlm.nih.gov/pubmed/29904372
http://dx.doi.org/10.3389/fmicb.2018.00954
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author Guo, Xue
Zhou, Xishu
Hale, Lauren
Yuan, Mengting
Feng, Jiajie
Ning, Daliang
Shi, Zhou
Qin, Yujia
Liu, Feifei
Wu, Liyou
He, Zhili
Van Nostrand, Joy D.
Liu, Xueduan
Luo, Yiqi
Tiedje, James M.
Zhou, Jizhong
author_facet Guo, Xue
Zhou, Xishu
Hale, Lauren
Yuan, Mengting
Feng, Jiajie
Ning, Daliang
Shi, Zhou
Qin, Yujia
Liu, Feifei
Wu, Liyou
He, Zhili
Van Nostrand, Joy D.
Liu, Xueduan
Luo, Yiqi
Tiedje, James M.
Zhou, Jizhong
author_sort Guo, Xue
collection PubMed
description Clipping, removal of aboveground plant biomass, is an important issue in grassland ecology. However, few studies have focused on the effect of clipping on belowground microbial communities. Using integrated metagenomic technologies, we examined the taxonomic and functional responses of soil microbial communities to annual clipping (2010–2014) in a grassland ecosystem of the Great Plains of North America. Our results indicated that clipping significantly (P < 0.05) increased root and microbial respiration rates. Annual temporal variation within the microbial communities was much greater than the significant changes introduced by clipping, but cumulative effects of clipping were still observed in the long-term scale. The abundances of some bacterial and fungal lineages including Actinobacteria and Bacteroidetes were significantly (P < 0.05) changed by clipping. Clipping significantly (P < 0.05) increased the abundances of labile carbon (C) degrading genes. More importantly, the abundances of recalcitrant C degrading genes were consistently and significantly (P < 0.05) increased by clipping in the last 2 years, which could accelerate recalcitrant C degradation and weaken long-term soil carbon stability. Furthermore, genes involved in nutrient-cycling processes including nitrogen cycling and phosphorus utilization were also significantly increased by clipping. The shifts of microbial communities were significantly correlated with soil respiration and plant productivity. Intriguingly, clipping effects on microbial function may be highly regulated by precipitation at the interannual scale. Altogether, our results illustrated the potential of soil microbial communities for increased soil organic matter decomposition under clipping land-use practices.
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spelling pubmed-59908672018-06-14 Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass Guo, Xue Zhou, Xishu Hale, Lauren Yuan, Mengting Feng, Jiajie Ning, Daliang Shi, Zhou Qin, Yujia Liu, Feifei Wu, Liyou He, Zhili Van Nostrand, Joy D. Liu, Xueduan Luo, Yiqi Tiedje, James M. Zhou, Jizhong Front Microbiol Microbiology Clipping, removal of aboveground plant biomass, is an important issue in grassland ecology. However, few studies have focused on the effect of clipping on belowground microbial communities. Using integrated metagenomic technologies, we examined the taxonomic and functional responses of soil microbial communities to annual clipping (2010–2014) in a grassland ecosystem of the Great Plains of North America. Our results indicated that clipping significantly (P < 0.05) increased root and microbial respiration rates. Annual temporal variation within the microbial communities was much greater than the significant changes introduced by clipping, but cumulative effects of clipping were still observed in the long-term scale. The abundances of some bacterial and fungal lineages including Actinobacteria and Bacteroidetes were significantly (P < 0.05) changed by clipping. Clipping significantly (P < 0.05) increased the abundances of labile carbon (C) degrading genes. More importantly, the abundances of recalcitrant C degrading genes were consistently and significantly (P < 0.05) increased by clipping in the last 2 years, which could accelerate recalcitrant C degradation and weaken long-term soil carbon stability. Furthermore, genes involved in nutrient-cycling processes including nitrogen cycling and phosphorus utilization were also significantly increased by clipping. The shifts of microbial communities were significantly correlated with soil respiration and plant productivity. Intriguingly, clipping effects on microbial function may be highly regulated by precipitation at the interannual scale. Altogether, our results illustrated the potential of soil microbial communities for increased soil organic matter decomposition under clipping land-use practices. Frontiers Media S.A. 2018-05-31 /pmc/articles/PMC5990867/ /pubmed/29904372 http://dx.doi.org/10.3389/fmicb.2018.00954 Text en Copyright © 2018 Guo, Zhou, Hale, Yuan, Feng, Ning, Shi, Qin, Liu, Wu, He, Van Nostrand, Liu, Luo, Tiedje and Zhou. http://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 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
Guo, Xue
Zhou, Xishu
Hale, Lauren
Yuan, Mengting
Feng, Jiajie
Ning, Daliang
Shi, Zhou
Qin, Yujia
Liu, Feifei
Wu, Liyou
He, Zhili
Van Nostrand, Joy D.
Liu, Xueduan
Luo, Yiqi
Tiedje, James M.
Zhou, Jizhong
Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass
title Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass
title_full Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass
title_fullStr Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass
title_full_unstemmed Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass
title_short Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass
title_sort taxonomic and functional responses of soil microbial communities to annual removal of aboveground plant biomass
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5990867/
https://www.ncbi.nlm.nih.gov/pubmed/29904372
http://dx.doi.org/10.3389/fmicb.2018.00954
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