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American Society for Microbiology, Applied and Environmental Microbiology, 18(79), p. 5777-5781, 2013

DOI: 10.1128/aem.01598-13

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Assimilation of Cellulose-Derived Carbon by Microeukaryotes in Oxic and Anoxic Slurries of an Aerated Soil

Journal article published in 2013 by Antonis Chatzinotas, Stefanie Schellenberger, Karin Glaser ORCID, Steffen Kolb
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

ABSTRACT 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- 13 C]cellulose under oxic conditions. A previous study using the same soil suggested that cellulolytic Bacteria assimilated 13 C 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.