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Int J Syst Evol Microbiol 56 (2006), 1795-1799; DOI  10.1099/ijs.0.64345-0
© 2006 International Union of Microbiological Societies

Gillisia myxillae sp. nov., a novel member of the family Flavobacteriaceae, isolated from the marine sponge Myxilla incrustans

On On Lee1, Stanley C. K. Lau2, Mandy M. Y. Tsoi1, Xiancui Li1, Ioulia Plakhotnikova1, Sergey Dobretsov1, Madeline C. S. Wu1, Po-Keung Wong3 and Pei-Yuan Qian1

1 Coastal Marine Laboratory/Department of Biology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People's Republic of China
2 Division of Environmental Science and Engineering, The National University of Singapore, Singapore
3 Department of Biology, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, People's Republic of China

Correspondence
Pei-Yuan Qian
boqianpy{at}ust.hk

A yellow-pigmented, Gram-negative, rod-shaped, strictly aerobic bacterium (strain UST050418-085T) was isolated from the surface of a marine sponge, Myxilla incrustans, at Friday Harbor, WA, USA. The DNA G+C content of this strain was 34.6 mol%. The predominant fatty acids were i15 : 0, a15 : 0, i15 : 1, i16 : 0, i17 : 0 3-OH, 17 : 0 2-OH and summed feature 3, comprising i15 : 0 2-OH and/or 16 : 1{omega}7c (altogether representing 69.0 % of the total fatty acids). MK-6 was the only respiratory quinone detected. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the closest relatives of UST050418-085T were members of the genus Gillisia, with sequence similarities of 93.2–96.6 %. Strain UST050418-085T differed from its closest relatives by 11 to 18 phenotypic traits. Molecular evidence and phenotypic characteristics suggest that strain UST050418-085T represents a novel species within the genus Gillisia. The name Gillisia myxillae sp. nov. is proposed, with UST050418-085T (=JCM 13546T=NRRL B-41416T) as the type strain.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain UST050418-085T is DQ202393.

A scanning electron micrograph of a cell of strain UST050418-085T is available as supplementary material in IJSEM Online.




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