1887

Abstract

Actinomycete strain H9 was isolated from coastal sediment of the Jiao-Dong peninsula (near Tsingdao city) in China, and was identified by means of polyphasic taxonomy. The strain grew autotrophically on modified nitrifying medium and heterotrophically on Luria–Bertani medium, with NaCl ranging from 0 to 8 % (w/v) (optimal growth at 3·5 %). The 16S rRNA gene sequence similarities of strain H9 to members of the genus ranged from 93·0 to 97·5 %, indicating that strain H9 was phylogenetically related to members of the genus . Strain H9 had type IV cell wall and type PIII phospholipid, and its major menaquinone was MK-8 (H). DNA–DNA relatedness values between strain H9 and , and were 42, 13 and 11 %, respectively. These results support the conclusion that H9 represents a novel species within the genus , for which the name sp. nov. is proposed, with the type strain H9 (=CGMCC 4.1877=JCM 12462).

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2006-03-01
2019-12-05
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vol. , part 3, pp. 555 - 558

Scanning electron micrograph of strain H9 grown on TSB agar for 7 days at 30 °C.

Ammonia oxidation to nitrite and nitrate by strain H9

Cellular fatty acid compositions of strain H9 and related species [Single PDF file](350 KB)



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