Mycoavidus cysteinexigens
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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Betaproteobacteria, Order Burkholderiales, Family Burkholderiaceae, Genus
Mycoavidus, Mycoavidus cysteinexigens Ohshima et al. 2016, type species of the genus.
Gram-negative short rods, 0.5-0.7 x 1.2-1.8 μm. Non-motile. Non-spore-forming.
Colonies on B-CYEalpha agar plates are flat, irregular, viscous and white to cream
colour. Grows at 4-35 ºC. Aerobe / microerobe; no anaerobic growth.
Requires cysteine for growth.
Living in association with the fungus Mortierella elongata, which was isolated from cropland soil samples in Japan.
Undetermined.
- Ohshima, S., Sato, Y., Fujimura, R., Takashima, Y., Hamada, M., Nishizawa, T., Narisawa, K. and Ohta, H. 2016. Mycoavidus
cysteinexigens gen. nov., sp. nov., an endohyphal bacterium isolated from a soil isolate of the fungus Mortierella elongata. Int. J.
Syst. Evol. Microbiol., 66, 2052-2057.
(c) Costin Stoica
Description is based mostly on API 20 NE and API ZYM results.
Positive results for esterase(C4), leucine arylamidase and naphthol phosphohydrolase.
Negative results for acid and alkaline phosphatase, arginine dihydrolase, catalase, cystine arylamidase, esterase lipase (C8),
alpha-fucosidase, alpha- and beta-galactosidase, alpha- and beta-glucosidase, beta-glucuronidase, gelatinase,
N-acetyl-beta-glucosaminidase, indole production, lipase (C14),alpha-mannosidase, nitrate reduction, oxidase, trypsin,
alpha-chymotrypsin, urease and valine arylamidase.
No utilization of glucose, arabinose, mannose, mannitol, N-acetyl-D-glucosamine, maltose, gluconate, caprate, adipate, malate,
citrate or phenylacetate.