User:Devlinme

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A Microbial Biorealm page on the genus Devlinme

Classification

Higher order taxa

Kingdom: Bacteria

Phylum Bacteroidetes

Order: Bacteroidales

Family: Bacteroidaceae

Genus Species: Bacteroides coprophilus str. DSM 18228


Species

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Description and significance

The bacterium, Bacteroides coprophilus are one of many micro bacteria from the phylum Bacteriodetes, which are the predominant bacterial organisms within the mammalian digestive system [1].

Genome structure

The bacterium consists of a linear genome with 3,855,443 nucleotide base pairs, 3,906 genes, and 3,838 proteins [6,7].

Cell and colony structure

B. coprophilus cells are bacilli shaped with 0.7-0.8x2.5-4.1μm in dimension. The organism’s colonies are 0.5-1.2mm in diameter and are translucent, circular, convex, and dark gray [3].


Metabolism

The bacterium are gram-negative, mesophilic, they maintain a strict obligate anaerobe, non-motile, and non-spore forming life[3]. Optimal temperature is mammalian diet dependent, within the range of 34-37°C[3].

Ecology

B. coprophilus thrives in a habit that contains 85% H20, 10% bile salts, 3% mucus, 1% fat, 0.7% inorganic salts, and 0.3% cholesterol, which corresponds to normal properties of mammalian stomach bile[3,2]. The bacterium also enjoys a pH within the range of 3-4, which can be maintained by the presence of HCl within the mammalian host gut. The bacterium also enjoys a habitat rich in undigested polysaccharides’ that host enzymes were unable to degrade[2].

Pathology

Currently research to understand how B.coprophilus, and other bacterium within the phylum Bacteroidetes, affect digestion and obesity are underway[4]. Research so far has indicated that a digestive system rich with bacterium from the phylum Bacteroidetes correlates with weight lose and lean body mass of rats[4].

References

[1]Gerald, T. W. (2010). The Bowel Microbiota and Inflammatory Bowel Diseases. (G. Rogler, Ed.) International Journal of Inflammation , 2010, 1-9.

[2]Hannah, w. M. (2007). Bacteroides: the good, the bad, and the Nitty Gritty . Clinical Microbiology Review , 4, 593-621.

[3]Hayashi, H., Shibata, K., Mohammad, B. A., Sakamoto, M., Tomita, S., & Benno, Y. (2007). Bacteroides coprophilus sp. nov., isolated from human faeces. International Journal of Systematic and Evolutionary MIcrobiology (57), 1323-1326.

[4]Karlsson, H., Ussery, D., NIelson, J., & Nookaew, I. (2012, 12 14). A Closer look at Bacteroides: Phylogenetic Relationship and Genomic Implications of a life in the human gut. Genes and Genomes .

[5]Ludwig, W., Euzeby, J., & Whitman, W. (1984). Road map of the phyla Bacteroidetes, Spirochaetes, Tebericutes(Mollicutes), Acidobaceria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucimicrobia, Chlamydiae, and Planctomycetes. In G. M. Garrity, & D. R. Boone (Eds.), Bergey's Manual of Systematic Bacteriology. Williams and Wilkins

[6]Ulrich, L. a. (2012). Bacterial Genomes. Retrieved 4 18, 2012, from Mist 2.1: www.mistdb.com/bacterial_genomes/summary/1547

[7] Washington Univeristy Genome Sequencing Center . (2010 йил 15-October). Bioproject: Bacteroides coprophilus DSM 18228 . (PubMed) Retrieved 2012 йил 14 -March from National Center for Biotechnology Information : http://www.ncbi.nlm.nih.gov/guide/

Edited by Megan Devlin of Dr. Lisa R. Moore, University of Southern Maine, Department of Biological Sciences, http://www.usm.maine.edu/bio