| 来源类型 | Monograph (IIASA Interim Report) |
| 规范类型 | 报告 |
| 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 | 2013 |
| 出版者 | IIASA, Laxenburg, Austria: IR-13-042 |
| 出版年 | 2013 |
| 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/10721/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/125947 |
| 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.. 2013. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| KorandaEtAl_FEMS%20M（259KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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