NDLI: Nocardiopsis algeriensis sp. nov., an alkalitolerant actinomycete isolated from Saharan soil

Content Provider	Springer Nature Link
Author	Bouras, ureddine Meklat, Atika Zitouni, Abdelghani Mathieu, Florence Schumann, Peter Spröer, Cathrin Sabaou, Nasserdine Klenk, Hans Peter
Copyright Year	2014
Abstract	An alkalitolerant actinomycete strain, designated B32T, was isolated from a Saharan soil sample collected from Adrar province (South of Algeria), and then investigated using a polyphasic taxonomic approach. The strain was observed to produce short chains of spores on the dichotomous branched aerial mycelium and formed a fragmented substrate mycelium. The optimum NaCl concentration for growth was found to be 0–5 % (w/v) and the optimum growth temperature and pH were found to be 25–35 °C and 7.0–10.0 °C, respectively. The diagnostic diamino acid in the cell-wall peptidoglycan was identified as meso-diaminopimelic acid. The predominant menaquinones of strain B32T were identified as MK-10 (H4) and MK-11 (H4). The major fatty acids were found to be iso-C16:0 and anteiso-C15:0. The diagnostic phospholipids detected were phosphatidylcholine, phosphatidylmethylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The chemotaxonomic properties of strain B32T are consistent with those shared by members of the genus Nocardiopsis. 16S rRNA gene sequence analysis indicated that strain B32T is most closely related to Nocardiopsis alba DSM 43377T (98.7 %), Nocardiopsis lucentensis DSM 44048T (98.6 %), Nocardiopsis aegyptia DSM 44442T (98.6 %), Nocardiopsis sinuspersici HM6T (98.6 %) and Nocardiopsis arvandica HM7T (98.5 %). However, the DNA–DNA relatedness values between strain B32T and the closely related type strains were 17.9, 14.6, 31.1, 27.1 and 14.1 %, respectively. Based on the combined genotypic and phenotypic evidence, it is proposed that strain B32T should be classified as representative of a novel species, for which the name Nocardiopsis algeriensis sp. nov. is proposed. The type strain is B32T (=DSM 45462T = CECT 8712T).
Starting Page	313
Ending Page	320
Page Count	8
File Format	PDF
ISSN	00036072
Journal	Antonie van Leeuwenhoek
Volume Number	107
Issue Number	2
e-ISSN	15729699
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-11-08
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nocardiopsis Nocardiopsis algeriensis sp. nov. Alkalitolerant actinomycete Saharan soil Polyphasic taxonomy Microbiology Medical Microbiology Plant Sciences Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Microbiology

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