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Vashist , P and Nogi , Y and Ghadi , SC and Verma , P, and Shouche, Y.S. (2013) Microbulbifer mangrovi sp. nov., a polysaccharide-degrading bacterium isolated from an Indian mangrove. International Journal of Systematic and Evolutionary Microbiology , 63. pp. 2532-2537.

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A rod-shaped, Gram-negative, non-motile, aerobic and non-endospore forming bacterium, designated strain DD-13T, was isolated from the mangrove ecosystem of Goa, India. Strain DD-13T degraded polysaccharides such as agar, alginate, chitin, cellulose, laminarin, pectin, pullulan, starch, carrageenan, xylan and b-glucan. The optimum pH and temperature for growth was 7 and 36 6C, respectively. The strain grew optimally in the presence of 3%NaCl (w/v). The DNA G+C content was 61.4 mol%. The predominant fatty acid of strain DD-13T was iso-C15 : 0. Ubiquinone-8 was detected as the major respiratory lipoquinone. Phylogenetic studies based on 16S rRNA gene sequence analysis demonstrated that strain DD-13T formed a coherent cluster with species of the genus Microbulbifer. Strain DD-13T exhibited 16S rRNA gene sequence similarity levels of 98.9–97.1%with Microbulbifer hydrolyticus IRE-31T, Microbulbifer salipaludis JCM 11542T, Microbulbifer agarilyticus JAMB A3T, Microbulbifer celer KCTC 12973T and Microbulbifer elongatus DSM 6810T. However, the level of DNA–DNA relatedness between strain DD-13T and the five type strains of these species of the genus Microbulbifer were in the range of 26–33 %. Additionally, strain DD-13T demonstrates several phenotypic differences from these type strains of species of the genus Microbulbifer. Thus strain DD- 13T represents a novel species of the genus Microbulbifer, forwhich the name Microbulbifer mangrovi sp. nov. is proposed with the type strain DD-13T (5KCTC 23483T5JCM 17729T).

Item Type: Article
Subjects: Insect Molecular Biology
Depositing User: Mr. Rameshwar Nema
Date Deposited: 01 Apr 2015 10:57
Last Modified: 02 Jul 2015 08:49
URI: http://nccs.sciencecentral.in/id/eprint/7

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