Phylum Firmicutes, Class Bacilli, Order Bacillales, Family Paenibacillaceae, Genus Paenibacillus, Paenibacillus prosopidis Valverde,
Fterich, Mahdhi, Ramirez-Bahena, Caviedes, Mars, Velazquez and Rodriguez-Llorente, 2010.
Description is based on a single isolate.
Gram- variable cells, motile by polar flagella. Produce round terminal spore in slightly
Colonies on nutrient agar are white-cream, smooth and convex, 1-3 mm in diameter.
Aerobic, but no anaerobic growth. Growth temperature 30-40 ºC, optimum 30 ºC. No
growth at 4 ºC. Can grow in 2%, but not in 5% NaCl. Grow at pH 6.5-8 (optimum pH
7), but not at pH 5.7 or 9.
Isolated from the nodules of Prosopis farcta (Dwarf Mesquite) in Tunisia.
- Valverde A., Fterich A., Mahdhi M., Ramirez-Bahena M-H., Caviedes M.A., Mars M., Velazquez E. and Rodriguez-Llorente I.D., 2010
Paenibacillus prosopidis sp. nov., isolated from the nodules of Prosopis farcta. IJSEM 60, 2182-2186.
Positive results for catalase, hydrolysis of cellulose, beta-galactosidase, hydrolysis of
esculin, hydrolysis of starch, hydrolysis of xylan, oxidase (weak), Voges-Proskauer
(weak), acid production from: L-arabinose, cellobiose, dulcitol, D-fructose (weak), galactose, D-glucose, (without gas production),
glycogen (weak), lactose, D-mannose (weak), maltose, melibiose, raffinose, ribose, salicin, sucrose, trehalose & D-xylose.
Negative results for arginine dihydrolase, hydrolysis of casein, deamination of phenylalanine, hydrolysis of gelatin, hydrolysis of urea,
indole production, lysine decarboxylase, nitrate reduction, ornithine decarboxylase, acid production from: N-acetylglucosamine,
adonitol, D-arabinose, D- or L-arabitol, erythritol, D- or L-fucose, beta-gentiobiose, glycerol, inositol, inulin, L-lyxose, D-mannitol,
melezitose, rhamnose, sorbose, tagatose, turanose, xylitol & L-xylose.
(c) Costin Stoica