Streptomyces xylanilyticus sp. Nov., isolated from soil

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Author list: Moonmangmee D., Kanchanasin P., Phongsopitanun W., Tanasupawat S., Moonmangmee S.

Publisher: Microbiology Society

Publication year: 2017

Journal: International Journal of Systematic and Evolutionary Microbiology (1466-5026)

Volume number: 67

Issue number: 10

Start page: 4189

End page: 4194

Number of pages: 6

ISSN: 1466-5026

eISSN: 1466-5034

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031809054&doi=10.1099%2fijsem.0.002282&partnerID=40&md5=fe3bc520aabce600f4f0536aaba3e195

Languages: English-Great Britain (EN-GB)

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Abstract

A novel actinomycete, strain SR2-123T, belonging to the genus Streptomyces, was isolated from a soil sample collected from the Sakaerat Environmental Research Station, Thailand Institute of Scientific and Technological Research, Nakhon Ratchasima Province, Thailand. The taxonomic position of the strain was characterized using a polyphasic study. Strain SR2-123T contained LL-diaminopimelic acid, glucose, mannose and ribose in whole-cell hydrolysates. The N-acyl type of muramic acid was acetyl. Menaquinones were MK-9(H6), MK-9(H8) and MK-9(H4). The predominant cellular fatty acids were iso-C15: 0, anteiso-C15: 0, iso- C16: 0, anteiso-C17: 0 and iso-C17: 0. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, an unknown phospholipid, unknown glycolipids, an unknown aminophospholipid, unknown lipids and an unknown aminolipid. The DNA G+C content was 74.8 mol%. The strain was closely related to Streptomyces coeruleorubidus JCM 4359T (98.5 %), Streptomyces flavofungini JCM 4753T (98.5 %), Streptomyces coerulescens NBRC 12758T (98. 5 %) and Streptomyces alboflavus JCM 4615T (98.4 %), based on 16S rRNA gene sequence similarities. The novel strain exhibited low DNA–DNA relatedness values with the type strains (11.4–25.0 %) of closely related species. On the basis of phenotypic and genotypic characteristics, strain SR2-123T could be distinguished from closely related species of the genus Streptomyces and represents a novel species of the genus Streptomyces for which the name Streptomyces xylanilyticus sp. nov. is proposed. The type strain is SR2-123T (=TISTR 2493T=KCTC 39909T). © 2017 IUMS.

Keywords

xylanase activity