95 –98. Bacterial Diversity in Subbituminous Coal and Soil from Coal Mine of South Sumatra, Indonesia
International Journal of Integrative Biology
IJIB, 2013, Vol. 14, No. 2, 102
©OmicsVista Group, All rights reserved
derived fro m bacteria trapped during sedimentation Bo ivin-Jahns et al., 1996. It suggests that the
extraction method, particu larly the direct method Zhou et al.
, 1996, is more suitable to be applied on the high clay soil. It successfully obtained OTUs that might not
be obtained by culture method. Firmicutes, especially Bacillus, has higher abundance
of OTU than others in their co mmun ity in the coal sample. It is possible since the genus Bacillus is an r-
strategist organism Sarathchandra et al., 1997. In rich environments of organic matter such as coal, Bacillus
easily outperforms other members by intensifying its growth by using abundant organic resources. The high
abundance of Bacillus showed that they had been in the favorable physico-chemical conditions in the coal.
Moreover, they are well known to have an endospore as defense mechanism of sustainability.
In conclusion, the differences in physical and chemical properties of the coal and the surrounding soil bacterial
showed different diversity in their co mmunit ies though they still have genetic relatedness.
Conflict of interest
The authors declare no conflict of interest.
Acknowledgement
This research was hardly carried out without support from PhD Scholarship Grant Number: BPPS Dikti-ITB 2009
Beasiswa Pendidikan Pasca Sarjana, Directorate General of Higher Education, M inistry of National Education, Indonesia,
and Dissertation Support from State Islamic University Syarif Hidayatullah Jakarta, M inistry of Religious Affairs, Indonesia
to M RP. We also appreciated to Ir. Eko Pujiantoro and his staff from PT. Bukit Asam Company..
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