Microscopic findings of host-parasite interaction between the Korean rockfish, Sebastes schlegelii, and the monogenean ectoparasite, Microcotyle sebastis.

This study was conducted to examine the pathogenesis of gill degeneration in the Korean rockfish Sebastes schlegelii, infested with the monogenean ectoparasite, Microcotyle sebastis. We collected 30 Korean rockfish from a fish farm in Tongyeong-si, Gyeongsangnam-do, and examined them with light microscopy, scanning electron microscopy (SEM), and histopathology, in March 2018. The monogenean trematode, M.

Ortholinea nupchi n. sp. (Myxosporea: Ortholineidae) from the urinary bladder of the cultured olive flounder Paralichthys olivaceus, South Korea.

A new myxosporean parasite, Ortholinea nupchi n. sp. (Myxozoa; Bivalvulida), was isolated from the urinary bladder of the olive flounder Paralichthys olivaceus cultured on Jeju Island, Korea.

Infection dynamics of Enteromyxum leei (Myxozoa, Myxosporea) in culture water and its effects on cultured olive flounder, Paralichthys olivaceus (Temminck & Schlegel).

Enteromyxum leei is a causative agent of enteromyxosis, with a wide range of marine fish hosts. Recently, massive morbidity and mortality were caused by E. leei infection in cultured olive flounders in Korea.

(Phylum Dicyemida: Dicyemidae) isolated from Korean common octopus in Korea.

Background: Dicyemids are parasites found in the renal sac of cephalopods. The first species of dicyemid was found from kidneys of the Korean common octopus .

Objectives: This study aimed to identify the dicyemid and investigate the effect on renal sac of host.

Effect of Epigallocatechin Gallate on Viability of Kudoa septempunctata.

Kudoa septempunctata have been reported as a causative agent for acute transient gastrointestinal troubles after eating raw olive flounder (Paralichthys olivaceus). It raised public health concerns and quarantine control in several countries. Quantitative evaluation on viability of K.

Evaluation of the effect of protease inhibitors on the viability of Miamiensis avidus using the WST-1 assay.

Miamiensis avidus causes scuticociliatosis in cultured olive flounders (Paralichthys olivaceus), leading to economic losses in aquaculture in Korea. Quantitative evaluation of the viability of M. avidus is important to develop an effective vaccine or chemotherapeutic agent against it.

Kudoa ogawai (Myxosporea: Kudoidae) Infection in Cultured Olive Flounder Paralichthys olivaceus.

Since Kudoa septempuntata was identified as a causative agent of food poisoning associated with raw olive flounder Paralichthys olivaceus, interest and concern regarding the parasite have increased. However, there have been no investigations or reports of other Kudoa species infecting the fish (except for K. paralichthys, which infects the brain) in Korea.

A new species Myxodavisia jejuensis n. sp. (Myxosporea: Sinuolineidae) isolated from cultured olive flounder Paralichthys olivaceus in South Korea.

A new myxosporean parasite, Myxodavisia jejuensis n. sp. (Myxozoa; Bivalvulida) is described from the urinary bladder of olive flounder Paralichthys olivaceus cultured on Jeju Island, Korea.

Sinuolinea capsularis (Myxosporea: Sinuolineidae) Isolated from Urinary Bladder of Cultured Olive Flounder Paralichthys olivaceus.

Sinuolinea capsularis Davis, 1917 is myxosporean that infect the urinary system of the host fish. Insufficient morphological and molecular data of S. capsularis exits, and it is therefore difficult to make an accurate identification of the parasite.

Parvicapsula curvatura n. sp. in cultured olive flounder Paralichthys olivaceus and phylogenetic characteristics of the genus Parvicapsula.

Parvicapsula curvatura n. sp. (Myxozoa; Bivalvulida) was found in the urinary bladder of olive flounder Paralichthys olivaceus cultured in a fish farm on Jeju Island, ROK.

Phylogenetic study of the genus Kudoa (Myxozoa: Multivalvulida) with a description of Kudoa rayformis sp. nov. from the trunk muscle of Pacific sierra Scomberomorus sierra.

Kudoa rayformis n. sp. (Myxozoa; Multivalvulida) was observed in the trunk muscle of Pacific sierra Scomberomorus sierra caught off the coast of Tonosi, Panama.

Discovery of intermediate hosts for two species of blood flukes Cardicola orientalis and Cardicola forsteri (Trematoda: Aporocotylidae) infecting Pacific bluefin tuna in Japan.

Fish blood flukes (Aporocotylidae) are important pathogens of farmed finfish around the world. Among them, Cardicola spp. infecting farmed tuna are considered to be serious threats to tuna farming and have received tremendous attention.

Factors affecting sporoplasm release in Kudoa septempunctata.

The myxosporean parasite Kudoa septempunctata has been isolated from cultured olive flounder (Paralichthys olivaceus) and was recently identified as a cause of food poisoning in humans. Since the sporoplasm plays an important role in causing diarrhea by invading intestinal cells, the specific factors affecting the release of sporoplasm from spores should be determined. Thus, we investigated the effect of digestive and serum enzymes, fetal bovine serum (FBS), temperature, and the role of glucose in cell culture media on the release of sporoplasm.

Bacteriophage therapy of a Vibrio parahaemolyticus infection caused by a multiple-antibiotic-resistant O3:K6 pandemic clinical strain.

Background: Recently isolated Vibrio parahaemolyticus strains have displayed multiple antibiotic resistance. Alternatives to conventional antibiotics are needed, especially for the multiple-antibiotic-resistant V. parahaemolyticus pandemic strain.

Expression and characterization of cathepsin L-like cysteine protease from Philasterides dicentrarchi.

Philasterides dicentrarchi is a causative agent of scuticociliatosis in olive flounder Paralichthys olivaceus, aquaculture in Korea. In this study, a cDNA encoding a cathepsin L-like cysteine protease (PdCtL) of P. dicentrarchi (synonym Miamiensis avidus) was identified.

CPRMethicillin resistant coagulase-negative staphylococci isolated from South Korean ducks exhibiting tremor.

Background: We describe coagulase-negative staphylococci (CoNS) isolates collected from ducklings exhibiting tremor in South Korea over the period of 2010 to 2011. Screening of antimicrobial susceptibility and analysis of SCCmec elements of CoNS were also investigated.

Results: Staphylococcus cohnii was the most frequent staphylococcus (9 isolates) and S.

Sequence-based genotyping methods to assess the genetic diversity of Riemerella anatipestifer isolates from ducklings with tremor.

The aim of this study was to investigate sequence-based genotyping methods to distinguish 27 Riemerella anatipestifer isolates from ducklings in South Korea. The 16S rRNA sequences of the 27 R. anatipestifer isolates showed 99�100% similarities to each other and to reference sequences from Genbank (AY871822.

Draft Genome Sequence of Aeromonas salmonicida subsp. achromogenes AS03, an Atypical Strain Isolated from Crucian Carp (Carassius carassius) in the Republic of Korea.

We present the draft genome sequence of Aeromonas salmonicida subsp. achromogenes strain AS03, an atypical A. salmonicida strain that causes erythrodermatitis in crucian carp (Carassius carassius).

Isolation and characterization of a Myoviridae bacteriophage against Staphylococcus aureus isolated from dairy cows with mastitis.

A lytic bacteriophage (phage), designated SAH-1, was isolated from sewage effluent near a dairy cow farm in Gwacheon, South Korea to search for biocontrol agents against Staphylococcus aureus infections. The SAH-1 was morphologically classified as Myoviridae and possessed an approximate 144 kb double-stranded genomic DNA. The phage showed broad host ranges within S.

Molecular identification and phylogenetic characterisation of Thelohanellus kitauei - short communication.

Thelohanellus kitauei was isolated from the koi Cyprinus carpio haematopterus, and the 18S rRNA gene of T. kitauei was amplified by optimised nested-PCR. The PCR product was sequenced and compared with other 18S rRNA genes of Thelohanellus species to investigate the relationships between their host specificities and infection sites.