Actinotalea fermentans Y959-4 is a gram-positive actinobacterial strain belonging to the family Cellulomonadaceae and the genus Actinotalea. It has a key alternative English name: Cellulomonas fermentans (the original classification before taxonomic reclassification in 2007).
First isolated from a municipal dumping ground in Montaubert, Essone, France, in the early 1980s, this strain was misclassified for 25 years before being formally reclassified into the novel genus Actinotalea based on polyphasic taxonomic evidence. Its type strain is DSM 3133(T), with additional deposit identifiers including ATCC 43279(T), CFBp 4259(T), and JCM 9966(T).
Key taxonomic and biological characteristics of the strain include:
Non-motile, non-sporulating, and rod-shaped (coryneform) cellular morphology.
Strictly aerobic respiration and slight halophily, with optimal growth in 2-4% (w/v) NaCl.
A high DNA G+C content of 75.8% and peptidoglycan of the A-type cross-linkage with L-ornithine as the diamino acid.
Predominant fatty acids of anteiso-branched and straight-chain types, with menaquinones MK-10(H4), MK-9(H4), and MK-8(H4) as major isoprenoid quinones.
Actinotalea fermentans-Y959-4