Pathogenicity of different isolates of Vibrio harveyi in tiger prawn, Penaeus monodon

Liuxy, P.-C.; Lee, K.-K.; Chen, Shiu-Nan

doi:10.1111/j.1472-765x.1996.tb01192.x

Cited by 171 publications

(153 citation statements)

References 22 publications

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“…After incubation at 24 1C for up to 7 days, the presence of zones of clearing around the colonies were recorded as a positive phenotype. Phospholipase activity was examined as previously described (Liu et al, 1996). Overnight cultures were inoculated on tryptone soya agar supplemented with 1% egg yolk emulsion (Oxoid) with incubation at room temperature for up to 7 days.…”

Section: Pathogenicity Testsmentioning

confidence: 99%

Genomic and proteomic analyses of the coral pathogen Vibrio coralliilyticus reveal a diverse virulence repertoire

et al. 2011

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Vibrio coralliilyticus has been implicated as an important pathogen of coral species worldwide. In this study, the nearly complete genome of Vibrio coralliilyticus strain P1 (LMG23696) was sequenced and proteases implicated in virulence of the strain were specifically investigated. The genome sequence of P1 (5 513 256 bp in size) consisted of 5222 coding sequences and 58 RNA genes (53 tRNAs and at least 5 rRNAs). Seventeen metalloprotease and effector (vgrG, hlyA and hcp) genes were identified in the genome and expressed proteases were also detected in the secretome of P1. As the VcpA zinc-metalloprotease has been considered an important virulence factor of V. coralliilyticus, a vcpA deletion mutant was constructed to evaluate the effect of this gene in animal pathogenesis. Both wild-type and mutant (DvcpA) strains exhibited similar virulence characteristics that resulted in high mortality in Artemia and Drosophila pathogenicity bioassays and strong photosystem II inactivation of the coral dinoflagellate endosymbiont (Symbiodinium). In contrast, the DvcpA mutant demonstrated higher hemolytic activity and secreted 18 proteins not secreted by the wild type. These proteins included four types of metalloproteases, a chitinase, a hemolysin-related protein RbmC, the Hcp protein and 12 hypothetical proteins. Overall, the results of this study indicate that V. coralliilyticus strain P1 has a diverse virulence repertoire that possibly enables this bacterium to be an efficient animal pathogen.

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Section: Pathogenicity Testsmentioning

confidence: 99%

Genomic and proteomic analyses of the coral pathogen Vibrio coralliilyticus reveal a diverse virulence repertoire

et al. 2011

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“…Accordingly, it can cause the "milky seas" effect, in which a uniform blue glow is emitted from the seawater and which is apparent during the night. Sometimes the glow covers nearly 16,000 km 2 . In marine ecosystems, chitin-containing substances are major sources of carbon and nitrogen for marine vibrios.…”

mentioning

confidence: 99%

“…It is found free-living in tropical marine waters and also commensally as a component of the gut microflora of marine animals. The bacterium is both a primary and an opportunistic pathogen of marine animals, triggering a lethal disease called luminous vibriosis (1), which affects marine fish and prawn-farming operations worldwide (2,3). V. harveyi is a fast growing bacterium under both aerobic and anaerobic conditions.…”

mentioning

confidence: 99%

Chitoporin from Vibrio harveyi, a Channel with Exceptional Sugar Specificity

Suginta

Chumjan

Mahendran

et al. 2013

Journal of Biological Chemistry

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Background: Vibrio harveyi chitoporin (VhChiP) was recently identified as a pore-forming channel responsible for chitooligosaccharide uptake through the outer membrane of V. harveyi. Results: Kinetic analysis revealed that VhChiP was several orders of magnitude more active than other known sugar-specific porins. Conclusion: VhChiP is a channel with exceptional sugar specificity. Significance: The high activity of VhChiP reflects an evolutionary adaptation required for V. harveyi to thrive under extreme aquatic conditions.

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“…Crop rotation in shrimp aquaculture is worth exploring and may prove feasible in view of the recent findings on the host specificity/preference of certain strains of Vibrio harveyi. Liuxy et al (1996) found differences in the pathogenicity of Vibrio harveyi isolated from penaeid and non-penaeid sources. Keeping this in mind, in the present study finfishes (Mugil cephalus and Chanos chanos) were cultured between crops of Litopenaeus vannamei shrimps for crop rotation and the reduction in the incidence of shrimp diseases was observed.…”

Section: Introductionmentioning

confidence: 98%

Crop Rotation as a Better Sanitary Practice for the Sustainable Management of Litopenaeus vannamei Culture

Yuvaraj¹,

Karthik²,

Muthezhila³

2015

Asian J. of Crop Science

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In the present study, finfishes (Mugil cephalus and Chanos chanos) were cultured between crops of Litopenaeus vannamei shrimps for crop rotation and the reduction in the incidence of shrimp diseases was observed. The fish seeds of 5-7 g individual weight were collected from the wild and required numbers were sorted out and stocked in the ponds at the rate of 7000 and 8000 numbers of Mugil cephalus and Chanos chanos, respectively in 1.3 ha. For shrimp culture, the seeds were purchased from a reputed hatchery and were stocked at a density of 7.7 shrimps mG 2 . In the control pond, the shrimps were stocked at the same density. The first crop was a fish culture experiment for 6 months followed by a shrimp culture experiment for 4½ months in one pond and the other pond was used as control and two shrimp culture experiments were carried out. During the culture period, the water quality parameters such as, temperature, salinity, pH, transparency, dissolved oxygen, ammonia, nitrite, nitrate, phosphate, silicate and the microbial load were analyzed. While comparing the performance of shrimps in the experiment pond and control pond, experimental shrimp pond yield was interesting with 695.3 kg of more production, similarly survival rate was 25% higher, Average Body Weight (ABW) was 2.9 g higher and Average Daily Growth (ADG) was 0.16 g higher for 90 days of culture. The results of the study have clearly established the advantages of crop rotation with fish than continuous culture of shrimps in the same system.

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Pathogenicity of different isolates of Vibrio harveyi in tiger prawn, Penaeus monodon

Cited by 171 publications

References 22 publications

Genomic and proteomic analyses of the coral pathogen Vibrio coralliilyticus reveal a diverse virulence repertoire

Genomic and proteomic analyses of the coral pathogen Vibrio coralliilyticus reveal a diverse virulence repertoire

Chitoporin from Vibrio harveyi, a Channel with Exceptional Sugar Specificity

Crop Rotation as a Better Sanitary Practice for the Sustainable Management of Litopenaeus vannamei Culture

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