Functional community composition has less environmental variability than taxonomic composition in straw-degrading bacteria

被引：14

作者：

Bao, Yuanyuan ^{[1
,2
]}

Guo, Zhiying ^{[1
,2
]}

Chen, Ruirui ^{[1
]}

Wu, Meng ^{[1
]}

Li, Zhongpei ^{[1
]}

Lin, Xiangui ^{[1
]}

Feng, Youzhi ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

BIOLOGY AND FERTILITY OF SOILS | 2020年 / 56卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Straw decomposition; Taxonomic composition; Functional composition; Dispersal limitation; Functional redundancy; ANAEROBIC DEGRADATION; SOIL BACTERIAL; CROP RESIDUES; DYNAMICS; DIVERSITY; BIOGEOGRAPHY; REDUNDANCY; CONVERSION; CELLULOSE; FOREST;

D O I：

10.1007/s00374-020-01455-y

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

To address environmental variations in metabolic composition of straw-decomposing bacterial community, we performed a 16-week field-based buried straw experiment at three experimental sites across subtropical China. We found that, although the taxonomic composition was highly variable, the functional composition was conserved across all experimental sites. This was likely because stochastic dispersal limitation governed the high taxonomic turnover of the community, leading to high environmental variability, whereas metabolic niche selection resulted in stable functional composition and lower redundancy. The integrated knowledge on the response of functional and taxonomic composition to environmental variability might help to understand microbial-driven straw decomposition at a large scale, considering the significance of microbial functional and taxonomic composition to biogeochemical cycling.

引用

页码：869 / 874

页数：6

共 39 条

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