| Renibacterium salmoninarum |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinomycetota, Class Actinomycetes, Order Micrococcales, Family Micrococcaceae, Genus Renibacterium, Renibacterium
salmoninarum Sanders and Fryer 1980, type species of the genus.
salmoninarum Sanders and Fryer 1980, type species of the genus.
Strongly Gram-positive short rods, 0.3-1.0 x 1.0-1.5 µm, often occurring in pairs.
Non-spore-forming. Non-motile. Not acid fast. Capsule is not produced. Cells may be
pleomorphic, and may contain intracellular granules.
Non-spore-forming. Non-motile. Not acid fast. Capsule is not produced. Cells may be
pleomorphic, and may contain intracellular granules.
Colonies on cysteine serum agar are circular and convex, white to creamy yellow, and
of varying sizes. On Loeffler coagulated serum a creamy growth with a matt surface is
produced. With Dorset egg medium, growth appears as a raised, smooth, shiny
yellow layer. On cysteine serum broth, creamy-yellow growth occurs only at the
surface of the medium. Growth on all media is slow, often requiring several weeks of
incubation. Optimum growth temperature 15-18 ºC; slow growth occurs at 5 and 22
ºC; no growth occurs at 37 ºC. Aerobic. Most strains require serum or whole blood for
growth. Hemolysis not observed.
of varying sizes. On Loeffler coagulated serum a creamy growth with a matt surface is
produced. With Dorset egg medium, growth appears as a raised, smooth, shiny
yellow layer. On cysteine serum broth, creamy-yellow growth occurs only at the
surface of the medium. Growth on all media is slow, often requiring several weeks of
incubation. Optimum growth temperature 15-18 ºC; slow growth occurs at 5 and 22
ºC; no growth occurs at 37 ºC. Aerobic. Most strains require serum or whole blood for
growth. Hemolysis not observed.
Located in fish feces, and survives in the aquatic environments for short periods of up to 1 week.
Isolated from chinook salmon (Oncorhynchus tshawytscha) and other salmonid fishes (salmon, trout, and char).
Sensitive to enrofloxacin, ciprofloxacin, bacitracin, chloramphenicol, cycloserine, erythromycin, terramycin, novobiocin, streptomycin,
nitrofurazone, and sulfonamides. In vivo tests have indicated that erythromycin gives the best results. Resistant to polymyxin B,
clindamycin and kanamycin.
Isolated from chinook salmon (Oncorhynchus tshawytscha) and other salmonid fishes (salmon, trout, and char).
Sensitive to enrofloxacin, ciprofloxacin, bacitracin, chloramphenicol, cycloserine, erythromycin, terramycin, novobiocin, streptomycin,
nitrofurazone, and sulfonamides. In vivo tests have indicated that erythromycin gives the best results. Resistant to polymyxin B,
clindamycin and kanamycin.
It is the causative agent of bacterial kidney disease in salmonid fishes (Dee disease), producing a slowly developing chronic infection
characterized by gray-white, enlarged necrotic abscesses in the kidney.There is one report of clinical disease in ayu (Plecoglossus
altivelis)and sea lamprey (Petromyzon mari).
characterized by gray-white, enlarged necrotic abscesses in the kidney.There is one report of clinical disease in ayu (Plecoglossus
altivelis)and sea lamprey (Petromyzon mari).
- Sanders JE, Fryer JL. Renibacterium salmoninarum gen. nov., sp. nov., the causative agent of bacterial kidney disease in salmonid
fishes. Int. J. Syst. Bacteriol. 1980; 30:496-502. - Goodfellow, M., T.M. Embley and B. Austin. 1985. Numerical taxonomy and emended description of Renibacterium salmoninarum.
J. Gen. Microbiol. 131: 2739-2752. - Hans-Jurgen Busse, 2012. Family I. Micrococcaceae Pribham 1929, 361 AL emend. Stackebrandt, Rainey and Ward-Rainey 1997,
479 in: Bergey’s Manual of Systematic Bacteriology, second edition, Volume Five The Actinobacteria, Part A, Springer, 571-666. - M. Faisal, A.E. Eissa, C.E. Starliper. Assessment of Renibacterium salmoninarum infections in four lake whitefish (Coregonus
clupeaformis) stocks from northern Lakes Huron and Michigan. J. Great Lakes Res. (2010).
Positive results for acid and alkaline phosphatase, casein hydrolysis, catalase, esterase C8, alpha-glucosidase, leucine arylamidase,
alpha-mannosidase, trypsinase, Tween 40 and 60 hydrolysis.
Negative results for arginine dyhidrolase, cystine arylamidase, chitin hydrolysis, DNase, esculin hydrolysis, esterase C4,
alpha-fucosidase, gelatin hydrolysis, alpha- and beta-galactosidase, beta-glucosaminidase, beta-glucosidase, beta-glucuronidase,
guanine hydrolysis, hipoxantine hydrolysis, indole production, lecithinase, myristate esterase, methyl red test, nitrate reduction, oxidase,
starch hydrolysis, Tween 80 hydrolysis, urease, valine arylamidase, xanthine hydrolysis and acid production from glucose and other
sugars.
alpha-mannosidase, trypsinase, Tween 40 and 60 hydrolysis.
Negative results for arginine dyhidrolase, cystine arylamidase, chitin hydrolysis, DNase, esculin hydrolysis, esterase C4,
alpha-fucosidase, gelatin hydrolysis, alpha- and beta-galactosidase, beta-glucosaminidase, beta-glucosidase, beta-glucuronidase,
guanine hydrolysis, hipoxantine hydrolysis, indole production, lecithinase, myristate esterase, methyl red test, nitrate reduction, oxidase,
starch hydrolysis, Tween 80 hydrolysis, urease, valine arylamidase, xanthine hydrolysis and acid production from glucose and other
sugars.
(c) Costin Stoica
| Antibiogram |
| Encyclopedia |
| Culture media |
| Biochemical tests |
| Stainings |
| Images |
| Movies |
| Articles |
| Identification |
| Software |
| R E G N U M PROKARYOTAE |
| Back |