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Int J Syst Evol Microbiol 58 (2008), 1458-1462; DOI  10.1099/ijs.0.65696-0
© 2008 International Union of Microbiological Societies

Sphingobacterium siyangense sp. nov., isolated from farm soil

Rui Liu1,{dagger}, Huan Liu2,3,{dagger}, Chong-Xing Zhang1, Shou-Yun Yang1, Xiu-Hong Liu1, Ke-Yun Zhang1 and Ren Lai1,2

1 Key Laboratory of Microbiological Engineering of Agricultural Environment, Ministry of Agriculture, Life Sciences College of Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China
2 Biotoxin Department of Key Laboratory of Animal Models and Human Disease Mechanisms, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, PR China
3 Graduate School of the Chinese Academy of Sciences, Beijing 100009, China

Correspondence
Ren Lai
rlai72{at}njau.edu.cn

The taxonomic position of a novel Gram-negative strain, designated SY1T, isolated from a farm-soil sample obtained from Jiangsu Province, PR China, was characterized by using a polyphasic approach. The cells were non-motile, non-spore-forming rods. The organism grew optimally at 30–37 °C and at pH 6.0–8.0. Based on 16S rRNA gene sequence analysis, strain SY1T is a member of the genus Sphingobacterium; Sphingobacterium multivorum JCM 21156T was the nearest relative (98.5 % sequence similarity). The predominant fatty acids of strain SY1T were iso-C15 : 0 (32.9 %), C16 : 0 (10.9 %) and summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1{omega}7c; 24.1 %). The DNA G+C content was 38.5 mol%. The low level of DNA–DNA relatedness (2.2 %) to S. multivorum JCM 21156T in combination with differential morphological and biochemical properties demonstrated that strain SY1T (=KCTC 22131T=CGMCC 1.6855T) should be classified as representing a novel species of the genus Sphingobacterium for which the name Sphingobacterium siyangense sp. nov. is proposed.

{dagger}These authors contributed equally to this work.

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain SY1T is EU046272.

Transmission electron micrographs of cells of strain SY1T are available as supplementary material with the online version of this paper.






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