Phylum Proteobacteria, Class Gammaproteobacteria, Order Vibrionales, Family Vibrionaceae, GenusPhotobacterium,
Photobacterium aquimaris Yoshizawa et al. 2009.
Gram-negative, coccoid rods, motile by means of more than one polar flagellum.
Colonies on Marine agar are nonpigmented, translucent, nonswarming. Luminescent.
Colonies on TCBS agar are round, 2-3 mm and green coloured. Growth occurs in 0.9-
3.5% NaCl (w/v) media, but not at 0.5, 6, 8 or 10% NaCl. Grows at 10-25 ºC, but not at
4, 30 or 37 ºC.
Isolated from seawater of Sagami bay in Japan.
- Susumu Yoshizawa, Minoru Wada, Kumiko Kita-Tsukamoto, Akira Yokota, and Kazuhiro Kogure: Photobacterium aquimaris sp.
nov., a luminous marine bacterium isolated from seawater. Int J Syst Evol Microbiol June 2009 59:1438-1442.
Positive results for alkaline phosphatase, leucine arylamidase, acid phosphatase,
alpha-galactosidase, beta-galactosidase, N-acetyl-beta-glucosaminidase, nitrates
reduction to nitrites (not to N2) & catalase.
Negative results for arginine dihydrolase, lysine decarboxylase, ornithine decarboxylase, urease, tryptophan deaminase, gelatinase,
esterase (C4), esterase lipase (C8), lipase (C4), valine arylamidase, cystine arylamidase, trypsin, chymotrypsin, beta-glucuronidase,
alpha-glucosidase, beta-glucosidase, alpha-mannosidase, alpha-fucosidase, oxidase, fermentation of: glucose & sucrose.
(c) Costin Stoica