Two Gram-positive, aerobic spherical actinobacteria were isolated from the rhizoplane of narrow-leaved cattail () collected from a floating mat in the Soroksár tributary of the Danube river, Hungary. Sequence comparisons of the 16S rDNA indicated these isolates to be phylogenetic neighbours of members of the genus , family , in which they represent two novel lineages. The phylogenetic distinctness of the two organisms TA68and TAGA27was supported by DNA-DNA similarity values of less than 55% between each other and with the type strains of and Chemotaxonomic properties supported the placement of the two isolates in the genus The diagnostic diamino acid of the cell-wall peptidoglycan is lysine, the interpeptide bridge is composed of three alanine residues. Predominant menaquinone was MK-7(H). The fatty acid pattern represents the straight-chain saturated iso-anteiso type. Main fatty acid was anteiso-C. The phospholipids are diphosphatidylglycerol, phosphatidylglycerol and an unknown component. The DNA base composition of strains TA68and TAGA27is 69·4 and 69·6 mol% G+C, respectively. Genotypic, morphological and physiological characteristics are used to describe two new species of , for which we propose the names , type strain DSM 11925and , type strain DSM 11926.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error