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KMID : 0880220160540110709
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Journal of Microbiology
2016 Volume.54 No. 11 p.709 ~ p.712
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Siphonobacter intestinalis sp. nov., a bacterium isolated from the feces of Pseudorhynchus japonicus
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Lee Shin-Ae
Kim Jeong-Myeong
Ahn Jae-Hyung
Joa Jae-Ho
Kim Soo-Jin
Song Jae-Kyeong
Kwon Soon-Wo
Weon Hang-Yeon
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Abstract
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Strain 63MJ-2T was isolated from the feces of broad-winged katydid (Pseudorhynchus japonicus) collected in Korea. The 16S rRNA gene sequence of this strain showed the highest sequence similarity with that of Siphonobacter aquaeclarae P2T (96.1%) and had low similarities (below 86.3%) with those of other members of family ‘Flexibacteraceae’. The strain 63MJ-2T is a strictly aerobic, Gram-stain-negative, non-motile, rod-shaped bacterium. The strain grew at 4?35°C (optimum, 25?30°C), pH of 5.0?9.0 (optimum, 6.0?7.0), and 0?2.0% (optimum, 1.0?2.0) (w/v) NaCl. The DNA G+C content of strain 63MJ-2T was 43.5 mol%. The major fatty acids were C16:1 ω5c (42.5%), iso-C17:0 3-OH (18.7%), and summed feature 3 (iso-C15:0 2-OH and/or C16:1 ω7c, 18.0%). The major menaquinone was MK-7 and polar lipids were phosphatidylethanolamine, six unknown aminolipids, and five unknown lipids. Based on the evidence from our polyphasic taxonomic study, we conclude that strain 63MJ-2T should be classified as a novel species of the genus Siphonobacter, and propose the name Siphonobacter intestinalis sp. nov. The type strain is 63MJ-2T (=KACC 18663T =NBRC 111883T).
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KEYWORD
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Siphonobacter, strain 63MJ-2, novel species, polyphasic taxonomy
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