G eodermatophilus

Abstract

Ge.o.der.ma.to.phi'lus. Gr. fem. n. ge earth; Gr. neut. n. derma , atos skin; Gr. masc. adj. philos loving; N.L. masc. n. Geodermatophilus a group of microorganisms that live in the soil, yet that love the skin, by analogy to the genus Dermatophilus , the actinobacterial genus causing a skin disease, that has similar morphological features. Actinobacteria / Actinobacteria / Geodermatophilales / Geodermatophilaceae / Geodermatophilus Gram‐reaction‐positive, aerobic, and pleomorphic cells with a tendency to form cauliflower‐like aggregates (multilocular sporangia). Zoospores are present. Reproduction by both bipartition and budding. It is also frequent to observe color switch from light red to dark colors at maturity. Mesophiles. Neutrophiles to moderate alkaliphiles. Grow well on glucose–yeast extract–malt extract (GYM) Streptomyces agar. The peptidoglycan contains meso ‐diamonopimelic acid. The predominant menaquinone is MK‐9(H 4 ). The polar lipid profile always involves diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, and an unidentified glycolipid. The major cellular fatty acids are iso‐C 16:0 and iso‐C 15:0 . The whole‐cell sugar pattern frequently includes ribose, mannose, glucose, and galactose. Member of the class Actinobacteria , order Geodermatophilales , and family Geodermatophilaceae . Representatives are frequently found in dry soils. Well known by their high tolerance to oxidative stress. DNA G + C content (mol%) : 74.0–76.0 (genome analysis). Type species : Geodermatophilus obscurus Luedemann 1968 AL , emend. Montero‐Calasanz et al. 2017.