Sphingomicrobium marinum sp. nov. and Sphingomicrobium flavum sp. nov., isolated from surface seawater, and emended description of the genus Sphingomicrobium

Abstract

T and other sphingomonads, respectively.

Sphingomicrobium aestuariivivum sp. nov., isolated from a tidal flat

“…The polyamine profile of strain AH-M8 T consisted of triamine sym -homospermidine in major amounts and a minor amount of spermidine. The DNA G+C content of strain AH-M8 T was 66.7 mol%, a value in the range reported for members of the genus Sphingomicrobium (Shahina et al , 2013b).…”

“…The predominant isoprenoid quinone detected in strain AH-M8 T was ubiquinone-10 (Q-10) which is compatible with that of the genus Sphingomicrobium (Kämpfer et al 2012; Shahina et al , 2013b). In , the fatty acid profile of strain AH-M8 T is compared with those of the type strains of S. astaxanthinifaciens and S. lutaoense (type species).…”

“…The genus Sphingomicrobium , a member of the class Alphaproteobacteria , was proposed by Kämpfer et al (2012) with the description of a single recognized species, Sphingomicrobium lutaoense , isolated from water of a coastal hot spring of Green Island, Taiwan. Subsequently, three further species of the genus Sphingomicrobium have been described, Sphingomicrobium astaxanthinifaciens (Shahina et al , 2013a) and Sphingomicrobium flavum and Sphingomicrobium marinum (Shahina et al , 2013b). Members of the genus Sphingomicrobium have been isolated from marine environments including water from a coastal hot spring and surface seawater (Kämpfer et al 2012; Shahina et al , 2013a, b).…”

Sphingomicrobium sediminis sp. nov., isolated from marine sediment in the Republic of Korea

“…It is the most distinctive feature of the genus Sphingomicrobium, however it was not detected in this strain. PE and PG were identified as the major polar lipids in strain GRR-S6-50 T , which have been also detected in other members of genus Sphingomicrobium [1][2][3][4][5]. There were slight differences between the strains in terms of number and presence of unidentified lipids.…”

“…The genus Sphingomicrobium, which belongs to the family Sphingomonadaceae, was described by Kämpfer et al in 2012 [1]. At the time of writing, seven species of genus Sphingomicrobium, isolated from marine environments such as coastal seawater [1][2][3][4][5], have been identified. In general, members of the genus Sphingomicrobium are Gram-stain-negative, rod-shaped, strictly aerobic, catalase-and oxidase-positive, and contain Q-10 as the major respiratory quinone.…”