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KMID : 0364819920300060483
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Korean Journal of Microbiology
1992 Volume.30 No. 6 p.483 ~ p.487
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Physicochemical Characters of Ultra Violet Ray Resistant Deinococcus sp. Isolated from Air Dust
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Yun Na-Rae
Lee In-Jeong
Lee Young-Nam
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Abstract
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Among a few number of UV-resistant bacteria isolated from various environmental sources (10), we made a comparative physio-chemoanalytical study on one of spherical bacteria isolated from air dust, presumably Deinococcus sp. (CM strain 29) with an UV resistant bacterium, Deinococcus radiophilus ATCC 27603 as the reference strain. Our isolate of UV resistant coccus, Deinococcus sp. CM 29 and D. radiophilus ATCC 27603 showed more than 75% matching coefficient in metabolic activity of various substrates. The most predominant cellular fatty acid of both strains was palmitoleic acid (C 16:1, cis 9), but the detail fatty acid profiles were slightly dissimilar to each other. Cell-bound orange pigment seemed to be an identical chemicals on spectrophotometric analysis. L-ornithine was detected as cell-wall amino acid in both strains. Galactose was detected as cell-wall sugar in D. radiophilus ATCC 27603, whereas glucose in Deinococcus sp. CM 29. G-C molar ratio of both strains was comparable, 63-65%.
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KEYWORD
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cell-wall amino acid, cellular fatty acids, G C mol%, Dinococcus sp
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