Abstract.
We bred a microbial community capable of degrading rice straw with high efficiency. The microbial community degraded more than 60% of rice straw within 4 days at 50 °C. The high stability of the community's degradation ability was demonstrated by its tolerance of being subcultured several times in medium with/without cellulosic material, being heated to 95 °C, and freezing at –80 °C. The community degraded both nonsterilized and sterilized substrate; and its degradation ability was not affected by pH changes in the medium (initial pH 5–9). PCR-denaturing gradient gel electrophoresis (DGGE) analyses based on 16S rDNA fragments showed that the community structure remained constant after multiple subcultures extending over 2 years. DNA sequence analyses of DGGE bands indicated the coexistence of both aerobic and anaerobic bacteria in the community.
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Haruta, .S., Cui, .Z., Huang, .Z. et al. Construction of a stable microbial community with high cellulose-degradation ability. Appl Microbiol Biotechnol 59, 529–534 (2002). https://doi.org/10.1007/s00253-002-1026-4
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DOI: https://doi.org/10.1007/s00253-002-1026-4