Description of Microvirga aerophila sp. nov. and Microvirga aerilata sp. nov., isolated from air, reclassification of Balneimonas flocculans Takeda et al. 2004 as Microvirga flocculans comb. nov. and emended description of the genus Microvirga
Two bacterial strains, 5420S-12T and 5420S-16T, isolated from air samples, were characterized using a polyphasic approach. 16S rRNA gene sequence analysis showed that strain 5420S-12T was related phylogenetically to Microvirga subterranea FaiI4T (97.4 % sequence similarity) and Microvirga guangxiensis 25BT (97.1 %) and that strain 5420S-16T was closely related to Balneimonas flocculans TFBT (98.0 %) and Microvirga guangxiensis 25BT (97.2 %). The G+C content of the genomic DNA was 62.2 mol% for strain 5420S-12T and 61.5 mol% for strain 5420S-16T. The major fatty acid was C18 : 1ω7c. The results of DNA–DNA hybridization and the phenotypic data showed that strains 5420S-12T and 5420S-16T could be distinguished from phylogenetically related species and represent two novel species within the genus Microvirga, for which the names Microvirga aerophila sp. nov. (type strain 5420S-12T =KACC 12743T =NBRC 106136T) and Microvirga aerilata sp. nov. (type strain 5420S-16T =KACC 12744T =NBRC 106137T) are proposed. Furthermore, the reclassification of Balneimonas flocculans as Microvirga flocculans comb. nov. (type strain TFBT =JCM 11936T =KCTC 12101T =IAM 15034T =ATCC BAA-817T) is proposed and an emended description of the genus Microvirga is provided.
BreznakJ. A.,
CostilowR. N.1994; Physicochemical factors in growth. In Methods for General and Molecular Bacteriology pp 137–154 Edited by
GerhardtP.,
MurrayR. G. E.,
WoodW. A.,
KriegN. R.
Washington, DC: American Society for Microbiology;
ChunJ.,
LeeJ. H.,
JungY.,
KimM.,
KimS.,
KimB. K.,
LimY. W.2007; EzTaxon: a web-based tool for the identification of prokaryotes based on 16S ribosomal RNA gene sequences. Int J Syst Evol Microbiol 57:2259–2261[CrossRef]
GrothI.,
SchumannP.,
WeissN.,
MartinK.,
RaineyF. A.1996; Agrococcus jenensis gen. nov., sp. nov., a new genus of actinomycetes with diaminobutyric acid in the cell wall. Int J Syst Bacteriol 46:234–239[CrossRef]
HiraishiA.1992; Direct automated sequencing of 16S rDNA amplified by polymerase chain reaction from bacterial cultures without DNA purification. Lett Appl Microbiol 15:210–213[CrossRef]
KansoS.,
PatelB. K. C.2003; Microvirga subterranea gen. nov., sp. nov., a moderate thermophile from a deep subsurface Australian thermal aquifer. Int J Syst Evol Microbiol 53:401–406[CrossRef]
MesbahM.,
PremachandranU.,
WhitmanW. B.1989; Precise measurement of the G+C content of deoxyribonucleic acid by high-performance liquid chromatography. Int J Syst Bacteriol 39:159–167[CrossRef]
MinnikinD. E.,
O'DonnellA. G.,
GoodfellowM.,
AldersonG.,
AthalyeM.,
SchaalA.,
ParlettJ. H.1984; An integrated procedure for the extraction of bacterial isoprenoid quinones and polar lipids. J Microbiol Methods 2:233–241[CrossRef]
SmibertR. M.,
KriegN. R.1994; Phenotypic characterization. . In Methods for General and Molecular Bacteriology pp 607–654 Edited by
GerhardtP.,
MurrayR. G. E.,
WoodW. A.,
KriegN. R.
Washington, DC: American Society for Microbiology;
TakedaM.,
SuzukiI.,
KoizumiJ. I.2004a; Balneomonas flocculans gen. nov., sp. nov., a new cellulose-producing member of the α -2 subclass of Proteobacteria
. Syst Appl Microbiol 27:139–145[CrossRef]
TakedaM.,
SuzukiI.,
KoizumiJ. I.2004b; Balneimonas flocculans gen. nov., sp. nov., corrig. In Validation of Publication of New Names and New Combinations Previously Effectively Published Outside the IJSEM , List no. 97. Int J Syst Evol Microbiol 54:631–632[CrossRef]
ThompsonJ. D.,
HigginsD. G.,
GibsonT. J.1994; clustal w: improving the sensitivity of progressive multiple sequence alignment through sequence weighting, position-specific gap penalties and weight matrix choice. Nucleic Acids Res 22:4673–4680[CrossRef]
ZhangJ.,
SongF.,
XinY. H.,
ZhangJ.,
FangC.2009; Microvirga guangxiensis sp. nov., a novel alphaproteobacterium from soil, and emended description of the genus Microvirga
. Int J Syst Evol Microbiol 59:1997–2001[CrossRef]
Description of Microvirga aerophila sp. nov. and Microvirga aerilata sp. nov., isolated from air, reclassification of Balneimonas flocculans Takeda et al. 2004 as Microvirga flocculans comb. nov. and emended description of the genus Microvirga