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タイトル: | A coexisting fungal-bacterial community stabilizes soil decomposition activity in a microcosm experiment. |
著者: | Ushio, Masayuki https://orcid.org/0000-0003-4831-7181 (unconfirmed) Miki, Takeshi Balser, Teri C |
著者名の別形: | 潮, 雅之 |
発行日: | 18-Nov-2013 |
出版者: | Public Library of Science |
誌名: | PloS one |
巻: | 8 |
号: | 11 |
論文番号: | e80320 |
抄録: | How diversity influences the stability of a community function is a major question in ecology. However, only limited empirical investigations of the diversity-stability relationship in soil microbial communities have been undertaken, despite the fundamental role of microbial communities in driving carbon and nutrient cycling in terrestrial ecosystems. In this study, we conducted a microcosm experiment to investigate the relationship between microbial diversity and stability of soil decomposition activities against changes in decomposition substrate quality by manipulating microbial community using selective biocides. We found that soil respiration rates and degradation enzyme activities by a coexisting fungal and bacterial community (a taxonomically diverse community) are more stable against changes in substrate quality (plant leaf materials) than those of a fungi-dominated or a bacteria-dominated community (less diverse community). Flexible changes in the microbial community composition and/or physiological state in the coexisting community against changes in substrate quality, as inferred by the soil lipid profile, may be the mechanism underlying this positive diversity-stability relationship. Our experiment demonstrated that the previously found positive diversity-stability relationship could also be valid in the soil microbial community. Our results also imply that the functional/taxonomic diversity and community ecology of soil microbes should be incorporated into the context of climate-ecosystem feedbacks. Changes in substrate quality, which could be induced by climate change, have impacts on decomposition process and carbon dioxide emission from soils, but such impacts may be attenuated by the functional diversity of soil microbial communities. |
著作権等: | © 2013 Ushio et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
URI: | http://hdl.handle.net/2433/185145 |
DOI(出版社版): | 10.1371/journal.pone.0080320 |
PubMed ID: | 24260368 |
出現コレクション: | 学術雑誌掲載論文等 |
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