. The actinomycetes. Actinomycetales. following system of elassifieat posed for the genus Streptomyc GROUPS AND SPECIES OF GENUS STREPTOMYCES was pi-o- 99 A. Spores spiny or hairy. I. Aerial mycelium blue. 1. Streptomyces \ irido chromogt nes 11. Aerial mycelium not blue. 1. Aerial mycelium white. 2. Strt ptomycts />u r purasct ns 2. Aerial mycelium no1 white. a. Aerial mycelium green. a1. Spores with short spines. 3. Streptomyces pra- Sl II IIS I)1. Spores with longer spines or with ha if. a'J. Spores with s1 ill spines. 4. Strt ptomyci s hirsu his b2. Spores with flexible hair. .").
. The actinomycetes. Actinomycetales. following system of elassifieat posed for the genus Streptomyc GROUPS AND SPECIES OF GENUS STREPTOMYCES was pi-o- 99 A. Spores spiny or hairy. I. Aerial mycelium blue. 1. Streptomyces \ irido chromogt nes 11. Aerial mycelium not blue. 1. Aerial mycelium white. 2. Strt ptomycts />u r purasct ns 2. Aerial mycelium no1 white. a. Aerial mycelium green. a1. Spores with short spines. 3. Streptomyces pra- Sl II IIS I)1. Spores with longer spines or with ha if. a'J. Spores with s1 ill spines. 4. Strt ptomyci s hirsu his b2. Spores with flexible hair. ."). Streptomyces pra- sinopilosus b. Aerial mycelium gray. a'. Sporophores in verticils. a2. Sporophores in open spirals; no melanin formation. 6. Streptomyces nour- sei* b2. Sporophores in closed spirals; melanin produced. 7. Strt ptomyces echi- n il his* I)1. Sporophores not in verticils. a'-'. Sporophores in closed spirals. s. Streptomyces albo- griseolus l>'-\ Sporophores in open spirals. a3. Spirals irregular. !). Streptomyces mac- rosport us b3. Spirals regular. a'. Spores spiny. 10. Streptomyces grist ojlariis I)1. Spores hairy. a5. Spirals w it h > ."> I urns; melanin posit ive. 11. Streptomyces pilo sus. The \erl i( te nat lire of "«?• Figure 27. Sporogenons coiled hyphae of Strep- tomyces T3110; taken from a gray area of a colony (Reproduced from: Duggar, B. M. et al. \nn. X. Y. Acad. Sci. 60: 71 -85, 1954). !>'. Spirals with <o turns, melanin-negal ive. 12. Strt ptomyces flaveo- lus B. Spores smool h. I. Aerial mycelium yellowish- to greenish- gray. 1. Melanin-negative. L3. Sin ptomyct s gri- seus 2. Melanin positive. 14. Streptomyces michi- garu nsis II. Aerial mycelium white. 1. Sporophores in verticils. 15. Sin ptomyt t s rubri- reticuli 2. No verticils produced. a. Sporophores form spirals. Hi. Sh i ptomyt' s nive- orubt r b. Sporophores straighl or wavy. a1. Melanin negative. 17. Sin ptomya sfulvis* si III IIS li1. Melanin posit ive. is.
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