全球智库信息集成服务系统(G2TT): Fungal and bacterial utilization of organic substrates depends on substrate complexity and N availability.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1111/1574-6941.12214
	Fungal and bacterial utilization of organic substrates depends on substrate complexity and N availability.
	Koranda M; Kaiser C; Fuchslueger L; Kitzler B; Sessitsch A; Zechmeister-Boltenstern S; Richter A
发表日期	2014
出处	FEMS Microbiology Ecology 87 (1): 142-152
出版年	2014
语种	英语
摘要	There is growing evidence of a direct relationship between microbial community composition and function, which implies that distinct microbial communities vary in their functional properties. The aim of this study was to determine whether differences in initial substrate utilization between distinct microbial communities are due to the activities of certain microbial groups. We performed a short-term experiment with beech forest soils characterized by three different microbial communities (winter and summer community, and a community from a tree-girdling plot). We incubated these soils with different 13C-labelled substrates with or without inorganic N addition and analyzed microbial substrate utilization by 13C-phospholipid fatty acid (PLFA) analysis. Our results revealed that the fate of labile C (glucose) was similar in the three microbial communities, despite differences in absolute substrate incorporation between the summer and winter community. The active microbial community involved in degradation of complex C substrates (cellulose, plant cell walls), however, differed between girdling and control plots and was strongly affected by inorganic N addition. Enhanced N availability strongly increased fungal degradation of cellulose and plant cell walls. Our results indicate that fungi, at least in the presence of a high N supply, are the main decomposers of polymeric C substrates.
主题	Evolution and Ecology (EEP) ; Postdoctoral Scholars (PDS)
关键词	13C-phospholipid fatty acid analysis Microbial community Substrate utilization Respiration
URL	http://pure.iiasa.ac.at/id/eprint/11037/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/130129
推荐引用方式 GB/T 7714	Koranda M,Kaiser C,Fuchslueger L,et al. Fungal and bacterial utilization of organic substrates depends on substrate complexity and N availability.. 2014.