期刊
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
卷 79, 期 18, 页码 5777-5781出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.01598-13
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资金
- Helmholtz Association
- Deutsche Forschungsgemeinschaft [Ko2912/3-1, Ko2912/3-2]
Soil microeukaryotes may trophically benefit from plant biopolymers. However, carbon transfer from cellulose into soil microeukaryotes has not been demonstrated so far. Microeukaryotes assimilating cellulose-derived carbon in oxic and anoxic soil slurries were therefore examined by rRNA-based stable-isotope probing. Bacteriovorous flagellates and ciliates and, likely, mixotrophic algae and saprotrophic fungi incorporated carbon from supplemental [U-C-13] cellulose under oxic conditions. A previous study using the same soil suggested that cellulolytic Bacteria assimilated C-13 of supplemental cellulose. Thus, it can be assumed that ciliates, cercozoa, and chrysophytes assimilated carbon by grazing upon and utilizing metabolic products of Bacteria that hydrolyzed cellulose in the soil slurries.
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