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

Abstract

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 respirationmore » and plant productivity. Intriguingly, clipping effects on microbial function may be highly regulated by precipitation at the interannual scale. In conclusion, altogether, our results illustrated the potential of soil microbial communities for increased soil organic matter decomposition under clipping land-use practices.« less

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1439748
Alternate Identifier(s):
OSTI ID: 1460336
Grant/Contract Number:  
SC0004601; SC0010715; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Frontiers in Microbiology
Additional Journal Information:
Journal Name: Frontiers in Microbiology Journal Volume: 9; Journal ID: ISSN 1664-302X
Publisher:
Frontiers Media SA
Country of Publication:
Switzerland
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; clipping land-use; taxonomic and functional response; microbial community; metagenomics; GeoChip

Citation Formats

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., and Zhou, Jizhong. Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass. Switzerland: N. p., 2018. Web. doi:10.3389/fmicb.2018.00954.
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. Switzerland. https://doi.org/10.3389/fmicb.2018.00954
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., and Zhou, Jizhong. Thu . "Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass". Switzerland. https://doi.org/10.3389/fmicb.2018.00954.
@article{osti_1439748,
title = {Taxonomic and Functional Responses of Soil Microbial Communities to Annual Removal of Aboveground Plant Biomass},
author = {Guo, Xue and Zhou, Xishu and Hale, Lauren and Yuan, Mengting and Feng, Jiajie and Ning, Daliang and Shi, Zhou and Qin, Yujia and Liu, Feifei and Wu, Liyou and He, Zhili and Van Nostrand, Joy D. and Liu, Xueduan and Luo, Yiqi and Tiedje, James M. and Zhou, Jizhong},
abstractNote = {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. In conclusion, altogether, our results illustrated the potential of soil microbial communities for increased soil organic matter decomposition under clipping land-use practices.},
doi = {10.3389/fmicb.2018.00954},
journal = {Frontiers in Microbiology},
number = ,
volume = 9,
place = {Switzerland},
year = {Thu May 31 00:00:00 EDT 2018},
month = {Thu May 31 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.3389/fmicb.2018.00954

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Cited by: 6 works
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Works referencing / citing this record:

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