Bacterial community structure in maize stubble-amended soils with different moisture levels estimated by bar-coded pyrosequencing

doi:10.1016/j.apsoil.2014.09.011

	Bacterial community structure in maize stubble-amended soils with different moisture levels estimated by bar-coded pyrosequencing
	Chen, Lin; Zhang, Jiabao; Zhao, Bingzi; Zhou, Guixiang; Ruan, Li; Zhang, JB (reprint author), Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, East Beijing Rd 71, Nanjing 210008, Jiangsu, Peoples R China. [email protected]
发表期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
	2015-02
卷号	86 页码:62-70
关键词	Bacteria Amendment Water-holding Capacity Stubble-c Dissolved Organic Carbon
DOI	10.1016/j.apsoil.2014.09.011
产权排序	[Chen, Lin; Zhang, Jiabao; Zhao, Bingzi; Zhou, Guixiang; Ruan, Li] Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China; [Chen, Lin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Peoples R China; [Zhang, Jiabao] Henan Agr Univ, Collaborat Innovat Ctr Food Crops Henan, Zhengzhou 450002, Peoples R China
作者部门	中科院烟台海岸带研究所知识产出
英文摘要	It is of ecological significance to investigate microbial communities in response to straw amendment and moisture in arable soils. However, in Chinese fluvo-aquic soils, these responses are still poorly understood. We designed an incubation experiment involving two soils with and without the addition of maize stubble at two moisture levels, and bacterial community structure at days 20, 80, and 200 after the start of incubation was assessed via bar-coded pyrosequencing of the 16S rDNA amplicons. In the presence of stubble with identical moisture level, we observed higher bacterial diversity and richness in long-term organic manure-fertilized soil compared with the unfertilized soil at days 20 and 80, which we attributed to the different quality and quantity of organic matter between the two soils. However, there was no significant difference in bacterial diversity and richness between the two soils at day 200, indicating that long-term straw amendment probably lessens the difference in bacterial community structure between the two soils. In the amended soils bacterial diversity, richness, and community composition at 25% of the water-holding capacity distinctly differed from those at 55% of the water-holding capacity, indicating that moisture strongly affects bacterial distribution in the amended soils. As stubble-C availability declined over time, the dominance of copiotrophic population weakened, and oligotrophic population was moderately abundant. Finally, our study suggests that dissolved organic carbon, which drives redistribution in copiotrophic and oligotrophic categories in response to the varying water and stubble-C availability, is a determinant of bacterial community composition in the amended soils. (C) 2014 Elsevier B.V. All rights reserved.
文章类型	期刊论文
资助机构	Agriculture
收录类别	SCI
语种	英语
关键词[WOS]	ORGANIC-MATTER ; MICROBIAL COMMUNITIES ; STRAW DECOMPOSITION ; CROP RESIDUES ; RICE STRAW ; CARBON MINERALIZATION ; EXTRACTION METHOD ; ENZYME-ACTIVITIES ; PADDY SOIL ; DIVERSITY
研究领域[WOS]	National Basic Research Program (973 Program) of China [2011CB100506] ; Chinese Academy of Sciences [CXJQ120111] ; China Agriculture Research System-Wheat
WOS记录号	WOS:000345591600007
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/8798
专题	中国科学院烟台海岸带研究所知识产出
通讯作者	Zhang, JB (reprint author), Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, East Beijing Rd 71, Nanjing 210008, Jiangsu, Peoples R China. [email protected]
推荐引用方式 GB/T 7714	Chen, Lin,Zhang, Jiabao,Zhao, Bingzi,et al. Bacterial community structure in maize stubble-amended soils with different moisture levels estimated by bar-coded pyrosequencing[J]. APPLIED SOIL ECOLOGY,2015,86:62-70.
APA	Chen, Lin,Zhang, Jiabao,Zhao, Bingzi,Zhou, Guixiang,Ruan, Li,&Zhang, JB .(2015).Bacterial community structure in maize stubble-amended soils with different moisture levels estimated by bar-coded pyrosequencing.APPLIED SOIL ECOLOGY,86,62-70.
MLA	Chen, Lin,et al."Bacterial community structure in maize stubble-amended soils with different moisture levels estimated by bar-coded pyrosequencing".APPLIED SOIL ECOLOGY 86(2015):62-70.

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