Phylum Proteobacteria, Class Gammaproteobacteria, Order Pseudomonadales, Family Pseudomonadaceae, Genus Pseudomonas,
Pseudomonas segetis Park et al. 2006.
Gram-negative, nonspore-forming, rod-shaped cells, 1.1-1.3 x 0.7-0.8 μm, motile by
means of a polar flagellum.
Colonies on Nutrient agar are translucent, butyrous, cream-coloured, circular, convex
& 1-2 mm in diameter after 2 days growth at 30 ºC. Does not produce fluorescent
pigment on King B medium.
Aerobic, grows at temperatures between 4 and 35 ºC, but not at 37 ºC. Tolerates NaCl
at concentrations up to 5% on Nutrient agar. Grows very poorly under anaerobic
conditions (anaerobic chamber containing CO2/H2/N2 at 10 : 10 : 80, by vol.).
Isolated from soil samples in Korea.
- Park, Yoon-Dong, Yi, Hana, Baik, Keun Sik, Seong, Chi Nam, Bae, Kyung Sook, Moon, Eun Young, Chun, Jongsik. Pseudomonas
segetis sp. nov., isolated from soil. Int J Syst Evol Microbiol 2006 56: 2593-2595.
Positive for catalase, oxidase, arginine dihydrolase, nitrate reduction, acetoin production, esterase lipase (C8), naphthol-AS-BI-
phosphohydrolase, alkaline phosphatase, acid phosphatase, esterase (C4), leucine arylamidase, assimilation of: caprate, citrate &
Negative for beta-galactosidase, lysine decarboxylase, ornithine decarboxylase, citrate utilization, H2S production, urease, tryptophan
deaminase, indole production, gelatinase, assimilation of: N-acetylglucosamine, maltose & adipate, fermentation/oxidation of:
glucose, mannitol, inositol, sorbitol, rhamnose, sucrose, melibiose, amygdalin & arabinose, acidification of glucose, valine
arylamidase, beta-glucosidase, cystine arylamidase, lipase (C14), trypsin and alpha-chymotrypsin, alpha-galactosidase,
beta-galactosidase, beta-glucuronidase, alpha-glucosidase, beta-glucosidase, N-acetyl-beta-glucosaminidase, alpha-mannosidase
(c) Costin Stoica