Stress‐mediated columnaris disease in rohu, <i>Labeo rohita</i> (Hamilton)

Kumar, D. Srinivas; Suresh, K; Dey, Ruma; Mishra, Birendra Kumar

doi:10.1111/j.1365-2761.1986.tb00985.x

Cited by 19 publications

(11 citation statements)

References 7 publications

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“…Hussain and Summerfelt (1991) reported about a strain that was F. columnare sensitive to Neomycin (N) and Norfloxacin (Nx); and this discrepancy could be attributed to lower concentration of Neomycin (N) and Norfloxacin (Nx) used in in vitro studies. All our F. columnare strains were resistant to penicillin‐G (P) like Kumar et al (1986) who suggest that the resistance of Flexibacter isolates to penicillin‐G (P) may be due to the difficulty of the penetrating the target site in the bacterial cell.…”

Section: Discussionsupporting

confidence: 58%

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Biochemical and Serological Characterization of Flavobacterium columnare from Freshwater Fishes of Eastern India

Dash¹,

Das²,

Pattnaik³

et al. 2009

J World Aquaculture Soc

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Flavobacterium columnare is an important pathogen of freshwater fishes often causing high mortality. Seven strains of F. columnare have been isolated from gill necrosis, skin lesions and internal organs of Catla catla, Labeo rohita, Cirrhinus mrigala, Carassius auratus, Anabas testudineus and Clarias batrachus and characterized by biochemical reactions and serological tests viz indirect enzyme‐linked immunosorbent assay (ELISA), Dot‐ELISA, agglutination test. All the strains showed binding to Congo red dye as well as hemolysis. All the seven strains were susceptible to amikacin, gentamycin and ofloxacin. In vivo LD50 dose of virulent strain MS2 was found to be 6 × 104 CFU/mL after experimental infection to L. rohita. Serologically all the seven strains showed a positive result to agglutination, Dot‐ELISA and indirect ELISA. The agglutination titer was found to be in the range of 256‐131,072. The lysozyme activity of hyperimmune sera was found to be 39.37 ± 0.80 units/mL. This is the first extensive study that report about the various strains of F. columnare from freshwater fishes of Eastern India and their differentiation by biochemical and serological methods.

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Section: Discussionsupporting

confidence: 58%

“…Columnaris disease because of stress in rohu, Labeo rohita , in India was studied by Kumar et al (1986). However, no specific study on the detailed strain differentiation, virulence, and antigenicity of Eastern India F. columnare isolates has been done.…”

mentioning

confidence: 99%

Biochemical and Serological Characterization of Flavobacterium columnare from Freshwater Fishes of Eastern India

Dash¹,

Das²,

Pattnaik³

et al. 2009

J World Aquaculture Soc

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“…Toranzo & Barja (1993) claimed that outbreaks of columnaris disease often occur under poor environmental conditions (presence of pollutants). Fijan (1968) suggested that columnaris disease is less likely to occur in water with low organic material levels, although disease outbreaks have been described under such conditions ( Kumar, Suresh, Dey & Mishra 1986). Hanson & Grizzle (1985) claimed that nitrite at 5 mg L –1 induced predisposed channel catfish to columnaris disease.…”

Section: Discussionmentioning

confidence: 99%

Influence of water quality and temperature on adhesion of high and low virulence Flavobacterium columnare strains to isolated gill arches

Decostere

Haesebrouck

Turnbull

et al. 1999

Journal of Fish Diseases

106

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The ability of Flavobacterium columnare (Flexibacter columnaris) to attach to the gills of common carp, Cyprinus carpio L., was evaluated using a gill perfusion model. A comparison between a high and a low virulence strain of F. columnare was made and evaluated in comparison to results obtained previously with an in vivo model. The ion composition of the water of the organ bath in which the gills were suspended was varied and the influence on adhesion processes assessed. Experiments were carried out to examine the influence of water quality (i.e. nitrite and organic matter) and temperature on the capacity of the bacteria to adhere. It was found that the high virulence strain adhered more readily than the low virulence strain, as was found during the in vivo experiments. Moreover, it was observed that adhesion of the high virulence strain was enhanced by a number of factors. These were immersion of the gill in bivalent, ion‐rich water, the presence of nitrite or organic matter, and high temperatures.

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“…Stress induced columnaris disease in rohu (Labeo rohita) in India was studied by Kumar et al [10]. Catla catla, Labeo rohita, Cirrhinus mrigala, Anabas testudineus and Clarias batrachus are commercially important freshwater food fi shes and cultured extensively in our country.…”

Section: Introductionmentioning

confidence: 99%

DNA fingerprinting of Flavobacterium columnare using RAPD-PCR

et al. 2010

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In the present study, DNA fi ngerprinting of eight strains of Flavobacterium columnare was done by random amplifi cation of polymorphic DNA (RAPD) fi ngerprinting method. The strains were collected from Fish Health Management Division, Central Institute of Freshwater Aquaculture, Bhubaneswar, India. A total number of 160 primers were screened for RAPD-PCR, of which 10 primers yielded amplifi cation with all the strains. The molecular weight of amplifi ed bands varied from 0.29-2.63 Kb. The number of bands varied from 1 to 8. Unique band was seen with primer OPY-15 with molecular weight 0.75 Kb that can be used for epidemiological study. Genetic variability was investigated using NTSYS software. Highest genetic similarity was found between MS1 and MS3 followed by MS5 and MS7. Minimum genetic similarity was found between MS2 and MS8. Phylogenetic tree was constructed using UPGMA and neighbor joining methods.

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Stress‐mediated columnaris disease in rohu, Labeo rohita (Hamilton)

Cited by 19 publications

References 7 publications

Biochemical and Serological Characterization of Flavobacterium columnare from Freshwater Fishes of Eastern India

Biochemical and Serological Characterization of Flavobacterium columnare from Freshwater Fishes of Eastern India

Influence of water quality and temperature on adhesion of high and low virulence Flavobacterium columnare strains to isolated gill arches

DNA fingerprinting of Flavobacterium columnare using RAPD-PCR

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