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Vitiosangium cumulatum gen. nov., sp. nov. and Vitiosangium subalbum sp. nov., novel soil myxobacteria from Nepal , and emended descriptions of genus Archangium and Angiococcus, and of Cystobacteraceae family.
Awal, Ram Prasad Garcia, Ronald Gemperlein, Katja Wink, Joachim Kunwar, Bikram Parajuli, Niranjan
Awal, Ram Prasad
Garcia, Ronald
Gemperlein, Katja
Wink, Joachim
Kunwar, Bikram
Parajuli, Niranjan
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2017-01-28
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Abstract
Bacterial strains designated MCy10943T and MCy10944T were isolated in 2014 from dried Nepalese soil samples collected in 2013 from Phukot, Kalikot, Western Nepal and Godawari, Lalitpur, Central Nepal. The novel organisms showed typical myxobacterial growth characteristics which include swarming colony and fruiting body formation on solid surfaces, and a predatory ability to lyse microorganisms. The strains were aerobic, mesophilic, chemoheterotrophic and showed resistance to various antibiotics. The major cellular fatty acids common to both organisms were C17:0 2-OH, iso-C15:0, C16:1 and iso-C17:0. The G + C content of the genomic DNA was 72-75 mol %. Phylogenetic analysis showed that the strains belong to the family Cystobacteraceae, suborder Cystobacterineae, order Myxococcales. The 16S rRNA gene sequences of both strains showed 97-98 % similarity to Archangium gephyra DSM 2261T, Cystobacter violaceus DSM 14727T, and 96.7-97 % to Cystobacter fuscus DSM 2262T and Angiococcus disciformis DSM 52716T. Polyphasic taxonomic characterisation suggested that strains MCy10943T and MCy10944T represent two distinct species of a novel genus, for which the names Vitiosangium cumulatum and Vitiosangium subalbum are proposed. The type strain of Vitiosangium cumulatum is MCy10943T (=DSM 102952T =NCCB 100600T) while for Vitiosangium subalbum is MCy10944T (=DSM 102953T =NCCB 100601T). In addition, the genera Archangium and Angiococcus, and the family Cystobacteraceae is herewith emended.
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Vitiosangium cumulatum gen. nov., sp. nov. and Vitiosangium subalbum sp. nov., novel soil myxobacteria from Nepal , and emended descriptions of genus Archangium and Angiococcus, and of Cystobacteraceae family. 2017 Int. J. Syst. Evol. Microbiol.
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en
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1466-5034