Thermovum composti gen. nov., sp. nov., an alphaproteobacterium from compost

Shuhei Yabe, Yoshifumi Aiba, Yasuteru Sakai, Masaru Hazaka, Akira Yokota

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10 Citations (Scopus)


A Gram-stain-positive thermophilic bacterium, designated strain Nis3T, was isolated from compost. The strain grew at 23-57 °C (optimum, 50 °C); no growth was observed below 15 or above 60 °C. The pH range for growth was 5.9-8.8 (optimum, 7.0); no growth was observed below pH 5.4 or above pH 9.3. The DNA G+C content of strain Nis3T was 63.4 mol%. The dominant quinone type was ubiquinone Q-10. The major fatty acids were C18:1ω7c, C19:0ω8c cyclo and C18:0. The polar lipids comprised phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, hydroxyphosphatidylethanolamine, phosphatidylinositol, phosphatidylmonomethylethanolamine, an unknown glycolipid and a ninhydrin-positive phospholipid. 16S rRNA gene sequence analysis assigned this bacterium to the family Phyllobacteriaceae in the Alphaproteobacteria but it shared less than 95.2 % sequence similarity with other members of the family. The chemotaxonomic and phenotypic characteristics of strain Nis3T differed in some respects from those of members of the family Phyllobacteriaceae. Therefore, strain Nis3T is considered to represent a novel species of a new genus in the family Phyllobacteriaceae, for which the name Thermovum composti gen. nov., sp. nov. is proposed. The type strain is Nis3T (= JCM 17863T = KCTC 23707T).

Original languageEnglish
Pages (from-to)2991-2996
Number of pages6
JournalInternational journal of systematic and evolutionary microbiology
Issue number12
Publication statusPublished - 2012
Externally publishedYes

ASJC Scopus subject areas

  • Microbiology
  • Ecology, Evolution, Behavior and Systematics


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