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Rhodovulum visakhapatnamense sp. nov.

¹ Bacterial Discovery Laboratory, Centre for Environment, Institute of Science and Technology, JNT University, Kukatpally, Hyderabad 500 085, India
² Department of Plant Sciences, School of Life Sciences, University of Hyderabad, PO Central University, Hyderabad 500 046, India
³ Leibniz-Institut für Meereswissenschaften IFM-GEOMAR, Marine Mikrobiologie, Düsternbrooker Weg 20, 24105 Kiel, Germany

Correspondence
Ch. Sasikala
sasi449{at}yahoo.ie
or
r449{at}sify.com

A Gram-negative, rod-shaped, phototrophic bacterium (JA181^T) was isolated from a tidal water sample. On the basis of 16S rRNA gene sequence similarity, strain JA181^T was shown to belong to the class Alphaproteobacteria, most closely related to Rhodovulum sulfidophilum (97.8 % similarity to the type strain), Rhodovulum adriaticum (93 %), Rhodovulum robiginosum (93 %), Rhodovulum iodosum (94 %), Rhodovulum imhoffii (94 %), Rhodovulum strictum (95 %), Rhodovulum euryhalinum (94.6 %) and Rhodovulum marinum (94.6 %). DNA–DNA hybridization with Rdv. sulfidophilum DSM 1374^T (relatedness of 39 % with strain JA181^T) and physiological and biochemical tests allowed genotypic and phenotypic differentiation of strain JA181^T from the eight Rhodovulum species with validly published names. Strain JA181^T therefore represents a novel species, for which the name Rhodovulum visakhapatnamense sp. nov. is proposed (type strain JA181^T =JCM 13531^T =ATCC BAA-1274^T =DSM 17937^T).

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