| Taxonomy Citation ID | Reference | ||||
|---|---|---|---|---|---|
| 24573 |
Weon HY,
Yoo SH,
Kim SJ,
Kim YS,
Anandham R,
Kwon SW,
( 2010 ) Massilia jejuensis sp. nov. and Naxibacter suwonensis sp. nov., isolated from air samples. PMID : 19783608 DOI : 10.1099/ijs.0.015479-0 Abstract >>
Two Gram-negative, motile, rod-shaped bacteria (strains 5317J-18T and 5414S-25T) were isolated from air samples collected in the Jeju Island and Suwon region of Korea, respectively. Phylogenetically, strain 5317J-18T was grouped with the genus Massilia with Massilia brevitalea byr23-80T as the closest relative (98.8% sequence similarity). Strain 5414S-25T was affiliated with the genus Naxibacter with Naxibacter haematophilus CCUG 38318T as the closest relative (98.8% sequence similarity). The mean DNA-DNA relatedness values between strain 5317J-18T and M. brevitalea DSM 18925T and Massilia aurea DSM 18055T were 43 and 36%, respectively. The mean DNA-DNA hybridization values between strain 5414S-25T and N. haematophilus KACC 13771T, M. brevitalea DSM 18925T, Massilia timonae DSM 16850T, Naxibacter varians KACC 13770T, M. aurea DSM 18055T, Massilia lutea DSM 17473T and Massilia albidiflava DSM 17472T ranged from 33 to 42%. Both novel strains had ubiquinone Q-8 as the predominant isoprenoid quinone and summed feature 3 (comprising iso-C15:0 2-OH and/or C16:1 omega7c) and C16:0 as the major fatty acids. Both strains also showed similar polar lipid profiles with phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol as the major polar lipids. The DNA G+C contents of strains 5317J-18T and 5414S-25T were 66.1 and 67.8%, respectively. On the basis of their phenotypic, chemotaxonomic and genotypic characteristics, the new strains represent novel species in the genera Massilia and Naxibacter. Strain 5317J-18T (=KACC 12634T=DSM 21309T) is proposed as the type strain of Massilia jejuensis sp. nov. and strain 5414S-25T (=KACC 12635T=DSM 21311T) is proposed as the type strain of Naxibacter suwonensis sp. nov.
|
31339 |
Kämpfer P,
Lodders N,
Martin K,
Falsen E,
( 2011 ) Revision of the genus Massilia La Scola et al. 2000, with an emended description of the genus and inclusion of all species of the genus Naxibacter as new combinations, and proposal of Massilia consociata sp. nov. PMID : 20656816 DOI : 10.1099/ijs.0.025585-0 Abstract >>
A Gram-stain-negative, rod-shaped, non-spore-forming bacterium originating from a human clinical specimen was studied for its taxonomic position. 16S rRNA gene sequence similarity studies clearly allocated this strain (CCUG 58010(T)) to the class Betaproteobacteria, closely related to members of the genera Massilia and Naxibacter. Naxibacter varians was shown to be the most closely related species on the basis of 16S rRNA gene sequence similarity (97.5 %), followed by Massilia niastensis (96.8 %) and Massilia aerilata (96.4 %). Similarities to all other species of the genera Naxibacter and Massilia were in the range 93.9-96.2 %. Chemotaxonomic data (major ubiquinone: Q-8; major polar lipids: phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol; and major fatty acids: summed feature 3 (C(16 : 1)�s7c and/or iso-C(15 : 0) 2-OH), C(16 : 0), C(18 : 1)�s7c and C(12 : 0), with C(10 : 0) 3-OH as hydroxylated fatty acid) supported the affiliation of the isolate to these genera, which share these chemotaxonomic traits. DNA-DNA hybridization of strain CCUG 58010(T) with the type strain of N. varians CCUG 35299(T) resulted in a relatedness value of 39.2 % (reciprocal, 50 %) and physiological and biochemical tests also allowed phenotypic differentiation of the isolate from the most closely related species. There is currently no justification for a division of the genera Massilia and Naxibacter and for this reason a proposal is made to transfer all species of the genus Naxibacter to the genus Massilia, as Massilia alkalitolerans comb. nov., Massilia varians comb. nov., Massilia haematophila comb. nov. and Massilia suwonensis comb. nov. Strain CCUG 58010(T) represents a novel species, for which the name Massilia consociata sp. nov. is proposed, with the type strain CCUG 58010(T) (= CCM 7792(T)).
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