Available nitrogen is the key factor influencing soil microbial functional gene diversity in tropical rainforest

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Available nitrogen is the key factor influencing soil microbial functional gene diversity in tropical rainforest
	Cong, Jing; Liu, Xueduan; Lu, Hui; Xu, Han; Li, Yide; Deng, Ye; Li, Diqiang; Zhang, Yuguang
刊名	BMC MICROBIOLOGY
	2015-08-20
卷号	15 页码:-
关键词	Tropical rainforest GeoChip Microbial functional gene diversity Microbial metabolic potential Available nitrogen
英文摘要	Background: Tropical rainforests cover over 50 % of all known plant and animal species and provide a variety of key resources and ecosystem services to humans, largely mediated by metabolic activities of soil microbial communities. A deep analysis of soil microbial communities and their roles in ecological processes would improve our understanding on biogeochemical elemental cycles. However, soil microbial functional gene diversity in tropical rainforests and causative factors remain unclear. GeoChip, contained almost all of the key functional genes related to biogeochemical cycles, could be used as a specific and sensitive tool for studying microbial gene diversity and metabolic potential. In this study, soil microbial functional gene diversity in tropical rainforest was analyzed by using GeoChip technology. Results: Gene categories detected in the tropical rainforest soils were related to different biogeochemical processes, such as carbon (C), nitrogen (N) and phosphorus (P) cycling. The relative abundance of genes related to C and P cycling detected mostly derived from the cultured bacteria. C degradation gene categories for substrates ranging from labile C to recalcitrant C were all detected, and gene abundances involved in many recalcitrant C degradation gene categories were significantly (P < 0.05) different among three sampling sites. The relative abundance of genes related to N cycling detected was significantly (P < 0.05) different, mostly derived from the uncultured bacteria. The gene categories related to ammonification had a high relative abundance. Both canonical correspondence analysis and multivariate regression tree analysis showed that soil available N was the most correlated with soil microbial functional gene structure. Conclusions: Overall high microbial functional gene diversity and different soil microbial metabolic potential for different biogeochemical processes were considered to exist in tropical rainforest. Soil available N could be the key factor in shaping the soil microbial functional gene structure and metabolic potential.
研究领域[WOS]	Microbiology
WOS记录号	WOS:000359689900001
公开日期	2016-03-15
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32728]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Cong, Jing,Liu, Xueduan,Lu, Hui,et al. Available nitrogen is the key factor influencing soil microbial functional gene diversity in tropical rainforest[J]. BMC MICROBIOLOGY,2015,15:-.
APA	Cong, Jing.,Liu, Xueduan.,Lu, Hui.,Xu, Han.,Li, Yide.,...&Zhang, Yuguang.(2015).Available nitrogen is the key factor influencing soil microbial functional gene diversity in tropical rainforest.BMC MICROBIOLOGY,15,-.
MLA	Cong, Jing,et al."Available nitrogen is the key factor influencing soil microbial functional gene diversity in tropical rainforest".BMC MICROBIOLOGY 15(2015):-.