From: Secondary metabolites and biodiversity of actinomycetes
Section | Characteristics |
---|---|
Nocardioformactinomycetes | Aerobic, may be acid-alcohol fast; occur as rods, cocci, and branched filaments or form substrate and aerial mycelium that fragment; wall chemotype IV; contain mycolic acids. |
Actinomycetes with multilocular sporangia | Aerobic to facultatively anaerobic; mycelium divides in all planes, no aerial hyphae, wall chemotype III. |
Actinoplanetes | Aerobic sporoactinomycetes, nonmotile, spores may be enclosed within vesicles; no aerial mycelium; wall chemotype II; whole-organism hydrolysates contain arabinose and xylose. |
Streptomycetesand related genera | Aerobic sporoactinomycetes; form an extensively branched substrate and aerial mycelium. |
Thermomonospora and relatedgenera | Aerobic spordactinomycetes; form an extensively branched substrate and aerial mycelium, both of which may carry single of chains of spores; spores either motile or non-motile; wall chemotype III |
Thermoactinomycetes | The stable filaments produce aerial growth. Single spores (endospores) are formed on both aerial and vegetative filaments. All species are thermophilic. The cell wall contains meso-DAP but no characteristic amino acids or sugars. |
Other genera | They all produce aerial growth-bearing chains of spores |