Abstract
Cellulomonas flavigena (Kellerman and McBeth 1912) Bergey et al. 1923 is the type species of the genus Cellulomonas of the actinobacterial family Cellulomonadaceae. Members of the genus Cellulomonas are of special interest for their ability to degrade cellulose and hemicellulose, particularly with regard to the use of biomass as an alternative energy source. Here we describe the features of this organism, together with the complete genome sequence, and annotation. This is the first complete genome sequence of a member of the genus Cellulomonas, and next to the human pathogen Tropheryma whipplei the second complete genome sequence within the actinobacterial family Cellulomonadaceae. The 4,123,179 bp long single replicon genome with its 3,735 protein-coding and 53 RNA genes is part of the Genomic Encyclopedia of Bacteria and Archaea project.
Highlights
Strain 134T (DSM 20109 = ATCC 482 = JCM 1489) is the type strain of the species Cellulomonas flavigena and was isolated from soil and first described in 1912 by Kellerman and McBeth [1], followed by a description in the first edition of Bergey’s Manual in 1923 [2].Because of the absence of a definite proof linking the deposited strains to the original description Stackebrandt and Kandler proposed in 1979 C. flavigena and six other Cellulomonas strains as neotype strains of their respective species [3]
C. flavigena cells are reported as Grampositive, non-motile and coryneform with snapping divisions [3]
The 16S rRNA genes of the 16 other type strains in the genus Cellulomonas share between 92.2% (C. bogoriensis [7]) and 98.1% (C. persica [8]) sequence identity with strain 134T, whereas the other type strains from the family Cellulomonadaceae, which belong to the genera Actinotalea, Oerskovia, Paraoerskovia and Tropheryma, share less than
Summary
In addition to the type species C. flavigena, the five Cellulomonas species, C. biazotea, C. cellasea, C. gelida, C. fimi and C. uda have been members of the genus since their original description in the first edition of Bergey’s Manual in 1923 [2]. Because of the phenetic resemblance of the different species to each other C. flavigena was recognized as the only species in the genus Cellulomonas in the eighth edition of Bergey’s Manual. This reduction to a single species was questioned by Braden and Thayer based on serological studies in 1976
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