Phylum Actinobacteria, Class Actinobacteria, Subclass Actibacteridae, Order Actynomycetales, Suborder Micrococcinae, Family
Microbacteriaceae, Genus Rathayibacter, Rathayibacter festucae Dorofeeva, Evtushenko, Krausova, Karpov, Subbotin and Tiedje
Gram-positive, irregular rods, 0.5-0.8 / 2.0-2.5 µm, and occurred singly or in pairs with
diphtheroid arrangements; in 5-7-day cultures, they were replaced by coccobacillus
forms, 0.7-0.8 µm in diameter. Non-motile. Non-spore-forming.
Colonies on Corynebacterium Agar are orange to rose-orange, butyrous, opaque,
convex, 1.0 mm in diameter, visible after 2-3 days incubation. Obligately aerobic.
Grows at 24-26 ºC, optimum. No growth at 7 or 37 ºC. No growth in 5% NaCl media.
No growth in 0.03% tellurium acetate.
Isolated from the leaf gall induced by the nematode Anguina graminis on fescue, Festuca rubra L. (Moscow region, Russia).
Resistant to ampicillin, gentamicin, rubomicin and oxacillin. Susceptible to doxycycline, levomicetin, metacycline, rifampicin and
Isolated from the leaf gall induced by the nematode Anguina graminis on fescue, Festuca rubra L.
- Zgurskaya H.I., Evtushenko L.I., Akimov V.N. and Kalakoutskii L.V. 1993. Rathayibacter gen. nov., Including the Species
Rathayibacter rathayi comb. nov., Rathayibacter tritici comb. nov., Rathayibacter iranicus comb. nov., and Six Strains from Annual
Grasses. Int. J. Syst. Bacteriol. Vol. 43, No.1, 143-149.
- Dorofeeva L.V., Evtushenko L.I., Krausova V.I., Karpov A.V., Subbotin S.A. and Tiedje J.M., 2002. Rathayibacter caricis sp. nov. and
Rathayibacter festucae sp. nov., isolated from the phyllosphere of Carex sp. and the leaf gall induced by the nematode Anguina
graminis on Festuca rubra L., respectively. Int. J. Syst. Evol. Microbiol. 52, 1917-1923.
Positive results for catalase, citrate utilisation, H2S production, methyl red reduction, oxidase, Tween 40, 60, 80 hydrolysis &
Negative results for aesculin hydrolysis, casein hydrolysis, hippurate hydrolysis, nitrate reduction, starch hydrolysis, urease, acid
production from: dulcitol, inositol, lactose, mannitol, melibiose, rhamnose & sorbitol.
(c) Costin Stoica