Murinocardiopsis flavida gen. nov., sp. nov., an actinomycete isolated from indoor walls
Kämpfer, Peter ;
Schäfer, Jenny ;
Lodders, Nadine ;
Martin, Karin
Originalveröffentlichung:
(2009) International journal of systematic and evolutionary microbiology, 2009, 60(8), 1729-1734. doi:10.1099/ijs.0.015990-0
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URN: urn:nbn:de:hebis:26-opus-86173
URL: http://geb.uni-giessen.de/geb/volltexte/2012/8617/
Freie Schlagwörter (Englisch):
Murinocardiopsis gen. nov. , Murinocardiopsis flavida sp. nov. , Actinomycetes
Universität
Justus-Liebig-Universität Gießen
Institut:
Institut für Angewandte Mikrobiologie
Fachgebiet:
Agrarwissenschaften, Ökotrophologie und Umweltmanagement fachübergreifend
DDC-Sachgruppe:
Biowissenschaften, Biologie
Dokumentart:
Aufsatz
Sprache:
Englisch
Erstellungsjahr:
2009
Publikationsdatum:
15.02.2012
Kurzfassung auf Englisch:
Two Gram-stain-positive, mycelium-forming actinobacteria (strains 14-Be-013T and 02-Gi-014) were isolated from walls colonized with moulds and studied taxonomically. The isolates formed yellowish-pigmented substrate mycelium showing no fragmentation. Comparative analysis of 16S rRNA gene sequences showed that these bacteria are most closely related to genera within the family Nocardiopsaceae, but form a separate lineage within this family. Highest sequence similarities were to the type strains of Marinactinospora thermotolerans (96.0% to 14-Be-013T), Nocardiopsis dassonvillei subsp. albirubida and Nocardiopsis lucentensis (both 95.3% to 14-Be-013T). Whole-cell hydrolysates contained meso-diaminopimelic acid as the diagnostic diamino acid of the cell wall and no diagnostic sugars. Mycolic acids were absent. The major menaquinones were MK-10(H4), MK-11(H4) and MK-12(H2). The polar lipid profile consisted of phosphatidylcholine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and unknown lipids. Major fatty acids iso-C16:0, anteiso-C17:0 and C18:1?9c supported the affiliation of these isolates to the family Nocardiopsaceae. Phenotypic analysis (including chemotaxonomy) further differentiated strains 14-Be-013T and 02-Gi-014 from the most closely related members of the genera Marinactinospora and Nocardiopsis. Since the two strains form a distinct lineage in the 16S rRNA gene sequence-based phylogenetic tree, the novel genus Murinocardiopsis gen. nov. with the type species Murinocardiopsis flavida sp. nov. is proposed. The type strain of Murinocardiopsis flavida is 14-Be-013T (=DSM 45312T =CCM 7612T).
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