Abstract:
:A novel actinomycete, strain SDA37T, belonging to the genus Actinomadura, was isolated from rhizosphere soil collected from Udon Thani Province, Thailand. The taxonomic position of the strain was characterized using a polyphasic approach. Meso-diaminopimelic acid, glucose, ribose, galactose and madurose were detected in cell-wall and 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-C16 : 0, C16 : 0, 10-methyl C18 : 0 and iso-C14 : 0. The major polar lipids were phosphatidylglycerol, diphosphatidylglycerol and phosphatidylinositol. blast analysis of the almost-complete 16S rRNA gene sequence showed 98.8 % similarity to Actinomadura oligospora NBRC 104149T, 98.7 % similarity to Actinomadura gamaensis DSM 100815T and 97.2 % similarity to Actinomadura rupiterrae KCTC 19559T. The DNA G+C content was 73.1 mol%. Strain SDA37T showed low DNA-DNA relatedness (44.3±7.3 to 58.5±8.7 %) to A. oligospora NBRC 104149T, Actinomadura gamaensis DSM 100815T and Actinomadura rupiterrae KCTC 19559T. The new strain could also be distinguished from its closely related strains by the differences in the phenotypic characteristics. The results of taxonomic analysis suggested that strain SDA37T represented a novel species of the genus Actinomadura for which the name Actinomadura rhizosphaerae sp. nov. is proposed. The type strain is SDA37T (=KCTC 39965T=NBRC 112909T=TISTR 2523T).
journal_name
Int J Syst Evol Microbiolauthors
Malisorn K,Kanchanasin P,Phongsopitanun W,Tanasupawat Sdoi
10.1099/ijsem.0.002940subject
Has Abstractpub_date
2018-09-01 00:00:00pages
3012-3016issue
9eissn
1466-5026issn
1466-5034journal_volume
68pub_type
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