Penaeus monodon (class Crustacea, order Decapoda) is one of the largest shrimps of the Penaeidea family from the Indo-West Pacific region. The dioxygen-transporting protein hemocyanin, isolated from the hemolymph of this invertebrate, is composed of three 75-76 kDa structural/functional subunits designated as Pm1, Pm2 and Pm3. The N-terminal sequences of the chains were determined and compared ...

Seafood constitutes an important food component and a cheap source of protein in developing countries. Shrimps are prone to bacterial contamination in their environment and have been frequently implicated in Vibrio parahaemolyticus infection. Of the 121 Penaeus monodon collected from coastal beaches in Douala, 79(65.3%) were contaminated with Vibrio spp. Presumed Vibrio sp. were identified by s...

The Vembanad Lake located on the south-west coast of India, an ecological hotspot is the nursing ground of many economically important crustaceans. The prevalence of white spot syndrome virus (WSSV) among crustaceans from farmed, estuarine and marine environments surrounding the Vembanad Lake, India was detected using PCR. A total of 308 samples from aquaculture ponds consisting of six species ...

A study was undertaken to determine the most effective element among the commonly used antimicrobial agents, especially in the body muscle of black tiger shrimp (Penaeus monodon) and giant freshwater prawn (Macrobrachium rosenbergii) on the basis of different chemical interventions. Using 10 ppm calcium hypochlorite, the microbial load has been reduced more significantly (p>0.001) than trisodiu...

We report here the genome sequence of Vibrio campbellii LB102, isolated from the broodstock rearing system of a shrimp hatchery in India. Sequence analysis revealed the presence of effector toxins of the type III (YopT, sharing 39% identity with Yersinia pestis) and type VI (VgrG-3 and hemolysin coregulated protein of V. cholerae) secretion systems.

The beneficial effects of probiotics have been attributed to their ability to promote the immunological and nonimmunological defense barrier in the gut, normalization of increased intestinal permeability and altered gut microflora. Twelve different intestinal bacterial colonies were isolated from Black Tiger Shrimp (Penaeus monodon). Among them strain PPP 13 was studied and characterized due to...

Translationally controlled tumour proteins (TCTP) cDNA were cloned from the haemolymph of Scylla paramamosain by reverse transcription PCR using primers derived from Penaeus monodon. Nucleotide sequence analysis revealed 507 bp open reading frame (ORF) encoding 168 amino acid residues with a predicted molecular mass and pI of approximately 19.2 kDa and 4.5, respectively. Interestingly, mud crab...

A survey was carried out on the prevalence of bacteria and ciliate protozoan of Pellaells indiclls obtained from Ennore estuary, Chennai (Madras), India from November 1989 to July 1992. The study r~vealed the occurrence of Vibrio parahaemolyticus, V. VUlllijiCUS, V. harvey;, V. allguillarum, V. damsela, Pseudomollas sp., P. aemgillo.\'{/ and a tilamentous bacterium Leucothrix sp. This study als...

A filamentous form of mollicute-like bacterium was detected during a routine health survey of wild adult kuruma shrimp Penaeus japonicus. The kuruma shrimp were native to Japan and were imported to Korea. The histology showed no pathological changes. Transmission electron microscopy revealed extensive infections of hepatopancreatic epithelial cells by a pleomorphic, filamentous intracellular ba...

Four species of penaeid prawn cultured in Australia (Penaeus monodon, Penaeus esculentus, Marsupenaeus japonicus and Fenneropenaeus merguiensis) were injected with a virulent preparation of gill-associated virus (GAV). P. monodon (average weight = 8.9, 13.9 and 19.2 g), P. esculentus (average weight = 19.5 g), F. merguiensis (average weight = 10.5 g), and small (average weight = 5.8 g) M. japon...