May be a cause of arthritis, osteolysis, myositis and spinal meningitis in Channel Catfish broodstock.
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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
See also
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus ictaluri Shewmaker et al. 2007.
Gram-positive cocci, grouped in pairs or short chains.
Colonies on 5% sheep blood Columbia agar are non-haemolytic & non-pigmaneted.
Growth temperature 25-35 °C, optimal temperature for growth was 30 °C. No growth
at 45 °C. No growth in 6.5% NaCl broth.
Growth temperature 25-35 °C, optimal temperature for growth was 30 °C. No growth
at 45 °C. No growth in 6.5% NaCl broth.
Isolated from channel catfish (Ictalurus punctatus).
- P. Lynn Shewmaker, Alvin C. Camus, Tim Bailiff, Arnold G. Steigerwalt, Roger E. Morey and Maria da Glória S. Carvalho:
Streptococcus ictaluri sp. nov., isolated from Channel Catfish Ictalurus punctatus broodstock. IJSEM July 2007 vol. 57 no. 7
1603-1606.
Positive for pyrrolidonylarylamidase, leucine aminopeptidase, alkaline phosphatase,
alanine-phenylalanineproline arylamidase, pyroglutamic acid arylamidase, acid
production from: maltose & ribose.
Negative for catalase, hippurate hydrolysis, aesculinhydrolysis, pyruvate utilization,
acetoin production, arginine dihydrolase, urease, beta-glucosidase, beta-galactosidase,
beta-glucuronidase, alpha-galactosidase, N-acetyl-beta-glucosaminidase, glycine-L-tryptophan arylamidase, beta-mannosidase
urease, acid production from: mannitol, sorbitol, lactose, trehalose, raffinose, sucrose, L-arabinose, D-arabitol, cyclodextrin, glycogen,
pullulan, maltose, melibiose, melezitose, methyl-beta-D-glucopyranoside & tagatose.
alanine-phenylalanineproline arylamidase, pyroglutamic acid arylamidase, acid
production from: maltose & ribose.
Negative for catalase, hippurate hydrolysis, aesculinhydrolysis, pyruvate utilization,
acetoin production, arginine dihydrolase, urease, beta-glucosidase, beta-galactosidase,
beta-glucuronidase, alpha-galactosidase, N-acetyl-beta-glucosaminidase, glycine-L-tryptophan arylamidase, beta-mannosidase
urease, acid production from: mannitol, sorbitol, lactose, trehalose, raffinose, sucrose, L-arabinose, D-arabitol, cyclodextrin, glycogen,
pullulan, maltose, melibiose, melezitose, methyl-beta-D-glucopyranoside & tagatose.
(c) Costin Stoica
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