| Photorhabdus australis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Morganellaceae, Genus Photorhabdus,
Photorhabdus australis (Akhurst et al. 2004) Machado et al. 2018.
Photorhabdus australis (Akhurst et al. 2004) Machado et al. 2018.
Gram-negative rods, 2-3 x 0.5-1.0 µm. Motile by peritrichous flagella.
Maximum temperature for growth in nutrient broth is 40 ºC. Yellow or brown pigment
is produced. Annular hemolysis observed on sheep-blood agar (variable) and
negative on horse-blood agar.
is produced. Annular hemolysis observed on sheep-blood agar (variable) and
negative on horse-blood agar.
Isolated from human wounds and blood in Australia.
Undetemined.
- R. J. Akhurst, N. E. Boemare, P. H. Janssen, M. M. Peel, D. A. Alfredson, and C. E. Beard. Taxonomy of Australian clinical isolates
of the genus Photorhabdus and proposal of Photorhabdus asymbiotica subsp. asymbiotica subsp. nov. and P. asymbiotica
subsp. australis subsp. nov. Int J Syst Evol Microbiol July 2004 54:1301-1310. - Machado RAR, Wuthrich D, Kuhnert P, Arce CCM, Thonen L, Ruiz C, Zhang X, Robert CAM, Karimi J, Kamali S, et al. Whole-
genome-based revisit of Photorhabdus phylogeny: proposal for the elevation of most Photorhabdus subspecies to the species
level and description of one novel species Photorhabdus bodei sp. nov., and one novel subspecies Photorhabdus laumondii
subsp. clarkei subsp. nov. Int J Syst Evol Microbiol 2018; 68:2664-2681. - Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for
Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov.,
Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol
2016; 66:5575-5599.
Positive results for catalase, DNase, gelatin hydrolysis, urease, acid production from: glucose (without gas production) and gluconate.
Negative results for arginine dihydrolase, esculin hydrolysis, growth in KCN, H2S production, indole production, lysine decarboxylase,
lecithinase (egg yolk agar), methyl red, nitrate reduction, ornithine decarboxylase, oxidase, ONPG, phenylalanine deaminase, Voges-
Proskauer, acid production from D-adonitol, L-arabinose, myo-inositol, lactose, mannitol, melibiose, raffinose, L-rhamnose, salicin, D-
sorbitol, sucrose, and trehalose.
Variable results for tryptophan deaminase, acid production from esculin and inositol.
Negative results for arginine dihydrolase, esculin hydrolysis, growth in KCN, H2S production, indole production, lysine decarboxylase,
lecithinase (egg yolk agar), methyl red, nitrate reduction, ornithine decarboxylase, oxidase, ONPG, phenylalanine deaminase, Voges-
Proskauer, acid production from D-adonitol, L-arabinose, myo-inositol, lactose, mannitol, melibiose, raffinose, L-rhamnose, salicin, D-
sorbitol, sucrose, and trehalose.
Variable results for tryptophan deaminase, acid production from esculin and inositol.
(c) Costin Stoica
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