Belongs within: Propionibacteriales.Contains: Aeromicrobium, Marmoricola. Deep-cleaning bacteria Published 16 July 2025 There is no question that we live in a rapidly changing world. The past couple of centuries have presented us with both opportunities and challenges that would have been beyond the imagination of our forebears. And for those of a bacteriological bent, dealing with those modern challenges… Continue reading Nocardioidaceae
Category: Actinobacteriota
Arthrobacter
Belongs within: Micrococcaceae.Contains: Paenarthrobacter. Arthrobacter is a widely distributed genus of bacteria, found primarily in soils. They appear as Gram-negative rods in young cultures and as Gram-positive cocci in mature cultures (Storms et al. 2003). The white race threatens the blood Published 23 January 2025 Microbial diversity is vast and its analysis is challenging, so… Continue reading Arthrobacter
Actinobacteria
Belongs within: Actinobacteriota.Contains: Microbacteriaceae, Kineosporiaceae, Dermabacteraceae, Micrococcaceae, Brevibacterium, Bifidobacteriaceae, Actinomycetaceae, Demequina, Cellulomonas, Jonesiaceae, Promicromonosporaceae, Bogoriellaceae, Glycomycetaceae, Micromonosporaceae, Geodermatophilaceae, Pseudonocardiaceae, Corynebacteriales, Streptosporangiales, Catenulisporales, Streptomycetaceae, Priopionibacteriales. The Actinobacteria are a diverse clade of mostly terrestrial, Gram-positive bacteria united by molecular analysis. Members of the clade are morphologically diverse, varying from cocci to rod-shaped taxa to taxa forming complex mycelia… Continue reading Actinobacteria
Pseudonocardiaceae
Belongs within: Actinobacteria.Contains: Actinomycetospora, Pseudonocardia, Amycolatopsis, Prauserella, Actinokineospora, Saccharopolyspora, Actinopolyspora, Lentzea, Saccharothrix. The Pseudonocardiaceae are a morphologically diverse clade of actinobacteria, united by molecular data, that may or may not form an aerial mycelium. Characters (from Nouioui et al. 2018): Cell-wall hydrolysates containing DL-A2pm as diaminoacid and galactose or arabinose as whole-cell sugars. PE or… Continue reading Pseudonocardiaceae
Thermomonosporaceae
Belongs within: Streptosporangiales. The Thermomonosporaceae are filamentous bacteria producing aerial mycelia differentiating into single or short chains of spores or into spore vesicles that release motile spores (Goodfellow et al. 2012). Characters (from Goodfellow et al. 2012): Aerobic, Gram-stain-positive, non-acid-alcohol-fast, chemoorganotrophic actinomycete. Stable, branched substrate mycelium carrying aerial mycelium. Aerial hyphae differentiating into single or… Continue reading Thermomonosporaceae
Nonomuria
Belongs within: Streptosporangiaceae. Nonomuria is a genus of filamentous bacteria forming aerial mycelia with chains of spores that are hooked, spiral or straight (Zhang et al. 1998). Characters (from Zhang et al. 1998): Gram-positive, non-acid-fast, extensively branched substrate and aerial mycelium. Aerial mycelia bearing chains of spores that are hooked, spiral or straight. Spore surface… Continue reading Nonomuria
Streptomyces
Belongs within: Streptomycetaceae. Streptomyces is a diverse genus of filamentous bacteria forming aerial mycelia. Cutting up the excess Published 15 November 2007 Just before I start, I’d like to point out that I have very little understanding of the world of biochemistry. Most of it goes so far above my head that it causes detours… Continue reading Streptomyces
Nocardiopsis
Belongs within: Streptosporangiales. Nocardiopsis is a genus of filamentous bacteria forming aerial mycelia of long chains of smooth spores (Korn-Wendisch & Kutzner 1992). Characters (from Korn-Wendisch & Kutzner 1992): Aerial mycelium with long chains of spores; spore surface smooth. Meso-diaminopimelic acid present; no diagnostic sugars; phospholipid type phosphatidylcholine; mycolic acids absent; menaquinones 10(H2)/(H4)/(H6); G+C content… Continue reading Nocardiopsis
Micrococcaceae
Belongs within: Actinobacteria.Contains: Arthrobacter. The Micrococcaceae are a clade of Gram-positive, aerobic to facultatively anaerobic cocci. <==MicrococcaceaeGH01a |–Stomatococcus mucilaginosusPHK96, D92 `–+–+–NesterenkoniaNC18 | | |–N. alba Luo et al. 2009NC18 | | |–N. halobiaRP03 | | `–N. massiliensisNC18 | `–+–*Yaniella halotolerans (Li et al. 2004) Li et al. 2008NC18 | `–MicrococcusNC18 | | i. s.: M.… Continue reading Micrococcaceae
Promicromonosporaceae
Belongs within: Actinobacteria. The Promicromonosporaceae are aerobic to facultatively anaerobic bacteria that typically form a substrate mycelium (Nouioui et al. 2018). Characters (from Nouioui et al. 2018): Aerobic to facultatively anaerobic, Gram-stain positive, acid-fast-negative, forming substrate mycelium that fragments into irregular elements or presents as cocci or short rods. Peptidoglycan of A4α type. Whole-cell hydrolysates… Continue reading Promicromonosporaceae