| 著者 |
Ray L, Mishra SR, Panda AN, Das S, Rastogi G, Pattanaik AK, Adhya TK, Suar M, Raina V.
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| Abstract |
A novel actinobacterial strain RC1832T was isolated from the sediment of a fish dumping yard at Balugaon near Chilika Lake. The strain is halotolerant (15 % NaCl, w/v), alkali-tolerant (pH 7-10) and hydrolyzes chitin, starch, gelatin, cellulose, carboxymethyl cellulose, Tween 80, tributyrin, lecithin and casein. Apart from showing typical genus-specific morphological and chemotaxonomic features, the comparision and analysis of the near complete 16S rRNA gene sequence clearly revealed that the strain RC1832T represented a member of the genus Streptomyces. It exhibited the highest sequence similarities with the strains Streptomyces fenghuangensis GIMN4.003T (99.78 %), Streptomyces nanhaiensis DSM 41926T (99.07 %), Streptomyces radiopugnans R97T(98.71 %), Streptomyces atacamensis DSM 42065T (98.65 %) and Streptomyces barkulensis DSM 42082T (98.25 %). The DNA-DNA relatedness of strain RC 1832T with the closest phylogenetic neighbours S. fenghuangensis GIMN4.003T and S. nanhaiensis DSM 41926T were 20±2 % and 21±2 %, respectively. Thus, based on a range of phenotypic and genotypic properties, strain RC1832T was suggested to represent a novel species of the genus Streptomyces for which the name Streptomyces chitinivorans sp. nov. is proposed. The type strain is RC1832T (=JCM 30611=KCTC 29696).
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