| simple, rapid and sensitive determination of plasma taurine by high-performance liquid chromatography using pre-column derivative formation with fluorescamine. | a simple, rapid and sensitive method for the determination of plasma taurine by high-performance liquid chromatography in the isocratic mode has been developed. the deproteinized plasma was treated with fluorescamine. these derivatives were separated on a lichrospher 100 rp-8 column within 15 min. the detection limit for taurine was 0.2 microm. the plasma taurine contents of yellowtail fish, seriola quinqueradiata, beef cattle, dairy cows and chickens were determined to be 125 +/- 54, 5.6 +/- 1. ... | 1992 | 1500450 |
| attenuation of sound by schooling fish. | attenuation of sound by schooling fish was measured or estimated for yellowtail (seriola quinqueradiata), sea bream (pagrus major), and spotted mackerel (scomber australasicus) in culture nets and a net cage. the results, along with those of other researchers, are normalized to obtain extinction cross sections per 2/3 power of the body weight. in the normalized cross sections there are no large differences among fish species, sizes, and measuring methods. the attenuation increases slightly with ... | 1992 | 1506535 |
| possible presence of the difference peptide in alkali light chain 1 of fish fast skeletal myosin. | 1. presence of n-terminal peptide ("difference peptide") in alkali light chain 1 (a1) of fish fast skeletal myosin was examined by comparing two kinds of light chain-based myosin subfragment 1 (s1) isozymes from the yellowtail seriola quinqueradiata. 2. on tryptic digestion, a1 was cleaved to a smaller fragment (mol. wt decrement by 2000) along with the cleavage of s1 heavy chain, while a2 was resistant to trypsin. two-dimensional gel electrophoresis showed that a1 released a basic peptide by tr ... | 1990 | 2150794 |
| diazo-reaction positive substance observed in the cortex of chattonella antiqua. | in order to investigate the causative factors responsible for removal of mucous coat from the gill lamellae of young yellowtail, seriola quinqueradiata by red tide, diazo-reactions were employed for planktons and their media. the concentration of no2- in the medium containing the raphidophyceae, chatonella antiqua (ca 2000 cells/ml), was 0.70 +/- 0.05 (mu g/ml +/- sem). in addition, diazo-reaction positive substances (nox) which may degenerate the mucous, was highly concentrated in the cortex (p ... | 1986 | 2980127 |
| daily cycles in plasma melatonin levels under long or short photoperiod in the common carp, cyprinus carpio. | a radioimmunoassay (ria) for plasma melatonin (mlt) was simplified for use with the common carp (cyprinus carpio). plasma was partially purified with sep-pak c18 cartridge before ria. the inhibition curves for the sep-pak c18 fraction from the plasma of carp, goldfish (carassius auratus), yellow tail (seriola quinqueradiata), japanese eel (anguilla japonica), bora (mugil cephalus cephalus), kisu (sillago japonica), ishigarei (kareius bicoloratus), and shimaisaki (rhyncopelates oxyrhynchus) were ... | 1988 | 3197949 |
| cdna cloning and primary structure of yellow tail (seriola quinqueradiata) pregrowth hormone. | full-length cdna of yellow tail (seriola quinqueradiata) growth hormone (gh) was cloned from the pituitary gland and nucleotide sequence was analyzed. the cdna clone contained one open reading frame to encode a preprotein consisting of 204 amino acids. the deduced amino acid sequence shows two possible sites for signal peptide cleavage, suggesting that the mature forms of yellow tail growth hormone consist of 185 or 187 amino acids. yellow tail growth hormone exhibits a typical structural featur ... | 1988 | 3417115 |
| occurrence of ditaurobilirubin, bilirubin conjugated with two moles of taurine, in the gallbladder bile of yellowtail, seriola quinqueradiata. | an unknown bilirubin conjugate was detected by hplc analysis in the bile of yellowtail, seriola quinqueradiata. the retention time of this unknown conjugate was identical with that of authentic ditaurobilirubin, a bilirubin conjugated with 2 mol of taurine. the retention times of the ethyl anthranilate diazo derivatives of both bilirubin conjugates were the same. the azo derivatives of this unknown conjugate were purified by amberlite xad-2 treatment and preparative tlc and hydrolyzed with 6 n h ... | 1987 | 3436951 |
| urotensin ii-immunoreactive neurons in the caudal neurosecretory system of freshwater and seawater fish. | antiserum generated against synthetic urotensin ii of the goby, gillichthys mirabilis, was used to localize urotensin ii in the caudal neurosecretory system in six species of freshwater teleosts: cyprinus carpio, carassius auratus, oreochromis mossambicus, oreochromis niloticus, salmo gairdneri and plecoglossus altivelis, and six species of seawater teleosts: acanthogobius flavimanus, pagrus major, parapristipoma trilineatum, trachurus japonicus, seriola dumerili and seriola quinqueradiata. in t ... | 1985 | 3884162 |
| detection of r + bacteria in cultured marine fish, yellowtails (seriola quinqueradiata). | | 1973 | 4540650 |
| stero-bile acids and bile alcohols. 104. studies on bile alcohols isolated from bile of yellow tail, seriola quinqueradiata. | | 1968 | 5716311 |
| on the monogenetic trematode, benedenia seriolae, parasitic on yellow-tail, seriola quinqueradiata. | | 1968 | 5752926 |
| the ph-dependency of myosin atpases from yellowtail ordinary and dark muscles. | myosins were isolated from the ordinary (white) and dark (red) muscles of yellowtail, seriola quinqueradiata, and the ph-dependency of atpase activity, along with some physicochemical properties, was examined. the ordinary muscle myosin contained three kinds of light chain (a1, dtnb and a2 light chains), the molecular weights of which were 28,000, 20,000, and 16,000, respectively. the dark muscle myosin possessed only two kinds of light chain (d1 and d2), the molecular weights of which were 26,0 ... | 1983 | 6231279 |
| a study of the deformability of red blood cells of a teleost fish, the yellowtail (seriola quinqueradiata), and a comparison with human erythrocytes. | the blood of a carangid fish, the yellowtail (seriola quinqueradiata) has been studied with particular reference to the deformability properties of the red blood cells. the rate at which blood flows through a nuclepore filter containing 5 micrometers pores has been determined under the same conditions that have been used with human blood. marked differences were found in the flow of yellowtail blood which depended on the particular way in which the blood had been sampled. such differences seem t ... | 1982 | 7077219 |
| drug resistance and broad geographical distribution of identical r plasmids of pasteurella piscicida isolated from cultured yellowtail in japan. | an mic test of 12 chemotherapeutic agents performed on 175 strains of pasteurella piscicida collected from cultured yellowtail (seriola quinqueradiata) in different areas of japan from 1989 to 1991 revealed 152 strains (87%) with resistance to combinations of ampicillin (ap), chloramphenicol (cp), kanamycin (km), nalidixic acid (na), sulfamonomethoxine (sa), tetracycline (tc), and/or trimethoprim (tmp). the remaining 23 strains were sensitive to all the drugs tested: ap, cefazolin, cp, florfenic ... | 1993 | 8502175 |
| molecular cloning and characterization of the yellowtail gh gene and its promoter: a consensus sequence for teleost and avian pit-1/ghf-1 binding sites. | the gene and 5' flanking promoter region for yellowtail (seriola quinqueradiata) gh (ygh) have been cloned, sequenced and characterized. the ygh gene spans approximately 4.6 kb and consists of six exons and five introns, as has been observed with rainbow trout, atlantic salmon and tilapia gh genes. this result suggests that the structure of six exons and five introns is a dominant form in fish gh genes. a typical tata box exists 26 bp upstream from the transcription start site, and pit-1/ghf-1 ( ... | 1996 | 8672234 |
| a highly repetitive sequence isolated from genomic dna of the medaka (oryzias latipes). | a highly repetitive interspersed dna sequence (mre) was isolated from the genome of medaka, oryzias latipes, and characterized. three distinct sequences of mre were cloned and compared. the conserved sequences of mre were approximately 220 bp in length. on average, one copy of mre was present in every 153 kb, and the number of copies of mre in the genome was calculated to be approximately 9800. mre constituted approximately 0.14% of the genome. mre-related sequences were not detected in carp (cy ... | 1996 | 8817927 |
| importation of aquaculture seedlings to japan. | japan is one of the largest consumers of fishery products in the world. importation of various fishery commodities - including larvae and eggs for aquaculture - is increasing due to high consumer demand. elvers of anguilla anguilla have been imported from europe since the late 1960s. eyed eggs of coho salmon (oncorhynchus kisutch) are imported from north america. during the last decade, over-production caused the price of japanese amberjack (or 'yellowtail') (seriola quinqueradiata) and japanese ... | 1996 | 8890372 |
| cross-reactivity of anti-yellowtail thymic lymphocyte monoclonal antibody (yet-2) with lymphocytes from other fish species. | the monoclonal antibody yet-2, generated in mice hyper-immunized with thymic lymphocytes of the yellowtail, seriola quinqueradiata, reacts with the major population of peripheral blood lymphocytes, which might be putative t cells. in this study, we examined the cross-reactivity of yet-2 with lymphocytes from various fish species. flow cytometric analysis showed that yet-2 reacts with 69.8% lymphocytes in the thymus, 89.7% in the peripheral blood, 87.5% in the spleen, and 59.7% in the head-kidney ... | 1997 | 9161694 |
| blood volume, plasma volume and circulation time in a high-energy-demand teleost, the yellowfin tuna (thunnus albacares) | we measured red cell space with 51cr-labeled red blood cells, and dextran space with 500 kda fluorescein-isothiocyanate-labeled dextran (fitc-dextran), in two groups of yellowfin tuna (thunnus albacares). red cell space was 13.8+/-0.7 ml kg-1 (mean +/- s.e.m.) assuming a whole-body hematocrit equal to the hematocrit measured at the ventral aortic sampling site and no significant sequestering of 51cr-labeled red blood cells by the spleen, blood volume was 46. 7+/-2.2 ml kg-1. this is within the r ... | 1998 | 9450974 |
| whole-body cortisol concentrations and ontogeny of aggressive behavior in yellowtail (seriola quinqueradiata temminck & schlegel; carangidae). | ontogenetic changes in whole-body immunoreactive cortisol concentrations (irc) and aggressive behavior were examined in yellowtail seriola quinqueradiata (temminck & schlegel; carangidae). baseline irc significantly increased during the transition from larval to juvenile stage and was correlated with the onset of aggressive behavior. handled fish (13.1 +/- 2.6 ng/g tissue) showed an irc level about three times higher than unhandled fish (4.7 +/- 1.4 ng/g tissue), indicating that whole-body immun ... | 1998 | 9473373 |
| incorporation of dietary docosahexaenoic acid into the central nervous system of the yellowtail seriola quinqueradiata. | in order to show the involvement of docosahexaenoic acid (dha) in the development of the central nervous system (cns) in carangid fish, we conducted tracer experiments by feeding radioactive dha to larval yellowtail (seriola quinqueradiata). artemia nauplii were enriched with 14c-labeled dha and fed to larval yellowtail for eight or ten days. autoradiography of frozen sections, using both electric imaging plates and x-ray sensitive film, clearly showed that dha was incorporated into and retained ... | 1999 | 10343083 |
| the protective immune response of yellowtail seriola quinqueradiata to the bacterial fish pathogen lactococcus garvieae. | yellowtail seriola quinqueradiata were immunized with 2 different lactococcus garvieae bacterin, formalin-killed kg- phenotype cells (capsulated phenotype) and formalin-killed kg+ phenotype cells (unencapsulated phenotype). these 2 injected vaccines conferred long-term protection to yellowtail against an artificial infection of an encapsulated lactococcus garvieae strain with long-lasting agglutinating titres against kg+ phenotype cells. however, no agglutinating titres or low agglutinating titr ... | 1999 | 10494501 |
| single and nested polymerase chain reaction assays for the detection of microsporidium seriolae (microspora), the causative agent of 'beko' disease in yellowtail seriola quinqueradiata. | single and nested polymerase chain reaction (pcr) assays were developed for the detection of the microsporidian parasite microsporidium seriolae, which is responsible for emaciation and even death in farmed japanese yellowtail. extremely high rdna identities exist between this parasite and other members of the as yet unclassified genus, necessitating the design of generic, rather than species-specific primer sets. the nested pcr was several orders of magnitude more sensitive than the standard si ... | 1999 | 10494502 |
| kabataia gen. n., a new genus proposed for microsporidium spp. infecting trunk muscles of fishes. | based on a fine structural study, a new genus, kabataia gen. n., is proposed for microsporidium arthuri lom, dyková and shaharom, 1990. it develops in trunk muscles of a south-east asian freshwater fish, pangasius sutchi. the genus has nuclei isolated throughout the cycle, merogony stages are multinucleate, sporogony proceeds in 2 steps: multinucleate sporont segments into sporoblast mother cells which produce 2 sporoblasts. sporoblasts and early spores are characterized by a dense globule at th ... | 1999 | 10590927 |
| isolation of different types of birnavirus from ayu plecoglossus altivelis and amago salmon oncorhynchus rhodurus cultured in the same geographic area. | a birnavirus was recently isolated from cultured ayu plecoglossus altivelis on shikoku island, japan. the diseased fish displayed vertebral or vertical curvature and mild haemorrhage around the brain. cytopathic effects (cpe) of the virus, including cell roundness, filamentous change and cell lysis, were observed in chse-214, rtg-2 and rsbk-2 cells. the virus isolated from ayu, designated the ay-98 strain, was found to be antigenically related to the marine birnavirus (mabv) y-6 strain that orig ... | 1999 | 10598281 |
| expression of yav proteins and vaccination against viral ascites among cultured juvenile yellowtail. | yellowtail ascites virus (yav) is a member of the family birnaviridae and causes viral ascites among juvenile yellowtail (seriola quinqueradiata). we have reported the cloning and expression of two viral cdnas, the first being segment a encoding a polyprotein of viral capsid proteins (vp2 and vp3) and a protease (ns), and the second being vp2-epitope encoding serotype-specific epitope region on vp2, using a baculovirus expression system. another viral cdna encoding a polyprotein of ns and vp3 wa ... | 2000 | 10945269 |
| ceratomyxa seriolae n. sp. and c. buri n. sp. (myxozoa: myxosporea) from the gall-bladder of cultured yellowtail seriola quinqueradiata. | ceratomyxa seriolae n. sp. and c. buri n. sp. (myxozoa: myxosporea) were found in the gall-bladder of cultured yellowtail seriola quinqueradiata temminck & schlegel (carangidae) in japan. mature spores of c. seriolae n. sp. were elongate and 6.5 (6.0-7.5) microm long and 33.7 (28.0-41.5) microm thick. disporous plasmodia of c. seriolae n. sp., 40-100 microm in size, were amoeboid to spherical. c. buri n. sp. were elliptical with a flattened posterior end. 6.5 (5.5-7.5) microm long and 14.3 (11.0 ... | 2001 | 11252275 |
| molecular cloning and sequence analysis of alpha- and beta-globin cdnas from yellowtail, seriola quinqueradiata. | two alpha- and two beta-globin genes from the yellowtail were cloned and their nucleotide sequences determined. the entire open reading frames of alpha-globin a and b genes were 432 and 435 bp long, respectively, whereas the corresponding values of the yellowtail beta-globin a and b genes were both 447 bp. amino acid identity of the yellowtail alpha- or beta-globin gene compared with those reported in other vertebrates including shark, teleosts and human, ranged from 35.4 to 83.0%. the yellowtai ... | 2001 | 11544091 |
| infectivity of aquabirnavirus strains to various marine fish species. | to determine the infectivity of marine birnavirus (mabv) in various marine fish species, experimental infection was performed in combination groups of 5 fish species with 7 strains of mabv and 1 strain of infectious pancreatic necrosis virus (ipnv). mortality was observed in yellowtail seriola quinqueradiata and amberjack s. dumerili infected with mabv strains y-6, y-10k and h-1, but not in other infected species. mabv was reisolated from most combination groups, but the virus isolation rate and ... | 2001 | 11678225 |
| new mg2+-dependent oxytetracycline resistance determinant tet 34 in vibrio isolates from marine fish intestinal contents. | a new oxytetracycline (otc) resistance (otc(r)) determinant, tet 34, was cloned from chromosomal dna of vibrio sp. no. 6 isolated from intestinal contents of cultured yellowtail (seriola quinqueradiata). the transformant, containing cloned tet 34, could grow in broth containing 25 microg of drug per ml with 10 mm mgcl2. tet 34 encoded an open reading frame (orf) 154 amino acids long. the amino acid sequence of the orf was homologous to sequences of several bacterial xanthine-guanine phosphoribos ... | 2002 | 11959596 |
| characterization of ovarian membrane receptor for 17,20beta-dihydroxy-4-pregnen-3-one, a maturation-inducing hormone in yellowtail, seriola quinqueradiata. | in our previous studies, we tentatively identified 17,20 beta-dihydroxy-4-pregnen-3-one (17,20 beta-p) as a maturation-inducing hormone (mih) in yellowtail (seriola quinqueradiata) through in vivo and in vitro experiments. in this study, we investigated the binding sites for radioactive 17,20 beta-p and characterized the receptor binding to the ovarian plasma membrane in yellowtail undergoing first stage of maturation (fsm). equilibrium binding sites for 17,20 beta-p have been detected within 1h ... | 2002 | 12161204 |
| cell-surface properties of lactococcus garvieae strains and their immunogenicity in the yellowtail seriola quinqueradiata. | the cell-surface properties of strains of lactococcus garvieae were examined. two capsular types were found, one with a highly developed capsule (kg9408) and one with a micro-capsule (ms93003) carrying fimbriae-like components projecting from the cell surface. one strain (nss9310) had neither cell capsular nor fimbriae-like structures on its cell surface. the strains with the highly developed capsule were more virulent to fish than either the micro-capsular or non-capsular strains. the kg9408, m ... | 2002 | 12465875 |
| cloning, sequence and variability analysis of expressed immunoglobulin light chain genes from yellowtail seriola quinqueradiata. | the cdna clones encoding immunoglobulin (ig) light (l) chain variable (v) region associated with constant (c) region were isolated from yellowtail (seriola quinqueradiata) kidney by expressed sequence tag analysis (accession numbers: ab062619-ab062668, ab064322). the sequences of both vl and cl region contain well-conserved cysteine residues important for intra- and inter-domain interaction in mammals. comparisons of the amino acid sequence of the cl domain with those of other species showed a h ... | 2003 | 12547626 |
| mechanisms of accumulation of arachidonate in phosphatidylinositol in yellowtail. a comparative study of acylation systems of phospholipids in rat and the fish species seriola quinqueradiata. | it is known that phosphatidylinositol (ptdins) contains abundant arachidonate and is composed mainly of 1-stearoyl-2-arachidonoyl species in mammals. we investigated if this characteristic of ptdins applies to the ptdins from yellowtail (seriola quinqueradiata), a marine fish. in common with phosphatidylcholine (ptdcho), phosphatidylethanolamine (ptdetn) and phosphatidylserine (ptdser) from brain, heart, liver, spleen, kidney and ovary, the predominant polyunsaturated fatty acid was docosahexaen ... | 2003 | 12654002 |
| effects of lethal levels of environmental hypercapnia on cardiovascular and blood-gas status in yellowtail, seriola quinqueradiata. | the cardiorespiratory responses were examined in yellowtail, seriola quinqueradiata exposed to two levels of hypercapnia (seawater equilibrated with a gas mixture containing 1% co(2) (water pco(2) = 7 mmhg) or 5% co(2) (38 mmhg)) for 72 hr at 20 degrees c. mortality was 100% within 8 hr at 5% co(2), while no fish died at 1% co(2). no cardiovascular variables (cardiac output, q; heart rate, hr; stroke volume, sv and arterial blood pressure, bp) significantly changed from pre-exposure values durin ... | 2003 | 12719643 |
| electron microscopic studies on the thyroid gland of a teleost, seriola quinqueradiata. | | 1965 | 14316822 |
| distribution of marine birnavirus in cultured marine fish species from kagawa prefecture, japan. | to determine the distribution of marine birnavirus (mabv) in cultured populations of different marine fish species, 1291 pooled tissue samples from 2672 fish belonging to 22 species and one hybrid were collected from kagawa prefecture, japan, during 1999-2001. using cell-culture mabv was isolated from three species: yellowtail, seriola quinqueradiata temminck & schlegel (positive number/sample number, 10/419), amberjack, s. dumerili (risso) (4/72), and japanese flounder, paralichthys olivaceus ( ... | 2004 | 15009250 |
| intraspecific diversity of the marine fish pathogen tenacibaculum maritimum as determined by randomly amplified polymorphic dna-pcr. | the aim of the present study was to evaluate the intraspecific genetic variability within tenacibaculum maritimum strains isolated from different species of marine fish. | 2004 | 15012827 |
| lancefield group c streptococcus dysgalactiae infection responsible for fish mortalities in japan. | a lancefield serological group c streptococcus sp. was isolated from cultured amberjack, seriola dumerili risso, and yellowtail, seriola quinqueradiata temminck and schlegel, immunized with lactococcus garvieae commercial vaccines in japan. the isolated bacteria were gram-positive cocci, auto-aggregating in saline, morphologically long chains in growth medium, catalase negative and alpha-haemolytic on blood agar. an almost complete gene sequence of the 16s rdna of two isolates was determined and ... | 2004 | 15575875 |
| vaccines for fish in aquaculture. | vaccination plays an important role in large-scale commercial fish farming and has been a key reason for the success of salmon cultivation. in addition to salmon and trout, commercial vaccines are available for channel catfish, european seabass and seabream, japanese amberjack and yellowtail, tilapia and atlantic cod. in general, empirically developed vaccines based on inactivated bacterial pathogens have proven to be very efficacious in fish. fewer commercially available viral vaccines and no p ... | 2005 | 15757476 |
| bacterial vaccines for fish--an update of the current situation worldwide. | during the last few years, the use of vaccines for disease prevention in aquaculture has expanded both with regard to the number of fish species and number of microbial diseases. according to the responses to a questionnaire received from 41 countries, vaccination is used in the commercial aquaculture of species like atlantic salmon (salmo salar), rainbow trout (oncorhynchus mykiss), sea bass (dicentrarchus labrax), sea bream (sparus aurata), barramundi (lates calcarifer), tilapia (tilapia spp), ... | 2005 | 15962470 |
| structural analysis of cdnas coding for 4snc-tudor domain protein from fish and their expression in yellowtail organs. | we cloned complementary dnas for 4snc-tudor protein (sn4tdr) from yellowtail (seriola quinqueradiata), torafugu (takifugu rubripes), and zebrafish (danio rerio). this protein contains 4 staphylococcal nuclease domains at the n terminus followed by a tudor domain. we also identified the 4snc-tudor proteins highly homologous to that in yellowtail from the takifugu genomic database. according to the smart database, these fish proteins had an overlapping tudor domain (smart00333) with a complete 5 s ... | 2005 | 16132464 |
| isolation of multidrug-resistant stenotrophomonas maltophilia from cultured yellowtail (seriola quinqueradiata) from a marine fish farm. | six strains of multidrug-resistant stenotrophomonas maltophilia were isolated from cultured yellowtail. the strains were divided into two clusters based on the 16s rrna genes, and all of them contained l1 metallo-beta-lactamase and l2 beta-lactamase genes. differences in the intercluster divergence between the lactamase genes suggest that horizontal transfer of the genes occurred. | 2005 | 16151156 |
| detection of quinolone-resistance genes in photobacterium damselae subsp. piscicida strains by targeting-induced local lesions in genomes. | quinolone-resistant strains of the fish-pathogenic bacterium, photobacterium damselae subsp. piscicida are distributed widely in cultured yellowtail, seriola quinqueradiata (temminck & schlegel), in japan. the quinolone resistance-determining region (qrdr) was amplified with degenerate primers, followed by cassette ligation-mediated pcr. open reading frames encoding proteins of 875 and 755 amino acid residues were detected in the gyra and parc genes, respectively. resistant strains of p. damsela ... | 2005 | 16159364 |
| cholecystokinin and peptide y in yellowtail (seriola quinqueradiata): molecular cloning, real-time quantitative rt-pcr, and response to feeding and fasting. | in fish, the peptide hormones cholecystokinin (cck) and peptide y (py) may be involved in pancreatic exocrine secretion, as found with mammalian cck and peptide yy (pyy); cck stimulates, whereas pyy inhibits, pancreatic exocrine secretion in mammals. however, there is very little information on these hormones in fish; in particular, the function of py is still unknown. therefore, as a first step for understanding the role of cck and py in regulating pancreatic exocrine in fish, the cdnas of cck ... | 2006 | 16242687 |
| adherence of lactococcus garvieae to the intestinal and brain gangliosides of the yellowtail, seriola quinqueradiata temminck and schlegel. | | 2006 | 16635065 |
| experimental induction of nocardiosis in yellowtail, seriola quinqueradiata temminck and schlegel by artificial challenge. | challenge methods for inducing nocardiosis, caused by nocardia seriolae in yellowtail, seriola quinqueradiata, were evaluated. the first method involved intraperitoneal injection of 1.1 x 10(2), x 10(3) and x 10(4) cfu of n. seriolae; the second was by bath immersion with three different concentrations of bacterial suspension for 10 min; the third was by intradermal injection using a multipuncture device; the fourth was by oral administration using a tube; the fifth was based on the co-habitatio ... | 2006 | 16948702 |
| effects of exogenous cholecystokinin and gastrin on the secretion of trypsin and chymotrypsin from yellowtail (seriola quinqueradiata) isolated pyloric caeca. | the humoral control of secretion of the proteolytic enzymes trypsin and chymotrypsin was studied in yellowtail (seriola quinqueradiata). in vitro trials were performed to investigate the effects of cholecystokinin (cck) and two commercially available gastrin peptides. isolated preparations of pyloric caeca/pancreas release trypsin and chymotrypsin when incubated with cholecystokinin (cck) at 10 microm and gastrin i (g1) at 50 microm after 15 min of incubation. on the other hand, g1 at 10 microm ... | 2007 | 17126578 |
| characterization of lancefield group c streptococcus dysgalactiae isolated from farmed fish. | a lancefield group c streptococcal (gcs) infection caused by streptococcus dysgalactiae that is characterized by severe necrotic lesions of the caudal peduncle has been an increasing cause of mortality in farmed fish such as amberjack, seriola dumerili, and yellowtail, seriola quinqueradiata, in the southern part of kyushu, japan. in this study, enzymatic profiles of gcs strains from fish and mammals were investigated using the api zym system, and genotypic characterization of gcs strains was pe ... | 2006 | 17169114 |
| changes in cholecystokinin and peptide y gene expression with feeding in yellowtail (seriola quinqueradiata): relation to pancreatic exocrine regulation. | in fish, the regulation of digestive enzyme secretion by hormonal control such as cholecystokinin (cck) and neuropeptide y (npy)-related peptide is not well understood. to investigate the roles of fish cck and peptide y (py) in digestive enzyme secretion, mrna levels of cck and py, pyloric caeca enzyme activities and mrna levels of pancreatic digestive enzymes (lipase, trypsin and amylase) were measured at pre- and post-prandial stages in yellowtail. pyloric caeca were sampled at 0, 0.5, 1.5, 3, ... | 2007 | 17208482 |
| isolation and characterization of virulent yellowtail ascites virus. | yellowtail ascites virus (ytav) is the causative agent of ascites and deformity in fish and causes serious losses to the fish-farming industry of yellowtail fry and fingerling seriola quinqueradiata in japan. in 2006, cultured yellowtail died from ascites in kochi, japan. we isolated and characterized a virus from the diseased fish. based on the pathogenicity, culture characteristics, morphological features, rt-pcr results targeting vp2/ns region, phylogeny based on the vp1 amino acid sequence, ... | 2007 | 17446679 |
| immune-related gene expression profiling of yellowtail (seriola quinqueradiata) kidney cells stimulated with cona and lps using microarray analysis. | to better understand the immune system of a commercially important fish (yellowtail, seriola quinqueradiata), we constructed a cdna microarray containing 1001 selected genes from yellowtail est and used this to investigate gene expression of primary cultured kidney cells stimulated with cona and lps. the total number of up-regulated genes stimulated by lps was apparently greater than that of cona stimulation, whereas down-regulated genes were markedly found in cona-stimulated group. of the genes ... | 2008 | 18083599 |
| the efficacy and safety of an oil-based vaccine against photobacterium damsela subsp. piscicida in yellowtail (seriola quinqueradiata): a field study. | protection after intraperitoneal (i.p.) vaccination of yellowtail (seriola quinqueradiata) against pasteurellosis was studied in a field trial. yellowtail juveniles captured from the wild or artificially hatched were immunised with an oil-based vaccine against photobacterium damsela subsp. piscicida, and the fish were observed for 15 weeks after vaccination. outbreak of pasteurellosis was observed at all five sites (mortality in control group ranged from 7% to 77%), and significant (p<0.01) prot ... | 2008 | 18356079 |
| genetic and phenotypic comparison of nocardia seriolae isolated from fish in japan. | the phenotypic and genetic characterizations of 58 isolates of the fish pathogen nocardia seriolae, from amberjack, seriolae dumerili, yellowtail, seriola quinqueradiata, japanese flounder, paralichthys olivaceus, and chub mackerel, scomber japonicus, in japan from 1970-2005, were examined to investigate the epidemiological relationship between isolates. the phenotypic and genetic characterizations were determined by alpha-glucosidase activity and biased sinusoidal field gel electrophoresis (bsf ... | 2008 | 18482385 |
| nutrient control of release of pancreatic enzymes in yellowtail (seriola quinqueradiata): involvement of cck and py in the regulatory loop. | cholecystokinin (cck) and neuropeptide y (npy)-related peptides are key regulators of pancreatic enzyme secretion in vertebrates. cck stimulates enzyme secretion whereas peptide y (py), a npy-related peptide, plays an antagonistic role to that of cck. in fish, very little is known about how different nutrients affect the synthesis of cck and py in the digestive tract, and the mechanism by which cck and py actually regulate digestive enzyme secretion is not well understood. in order to determine ... | 2008 | 18571447 |
| egg-laying patterns and in vivo egg production in the monogenean parasites heteraxine heterocerca and benedenia seriolae from japanese yellowtail seriola quinqueradiata. | egg-laying patterns and egg production in heteraxine heterocerca from the gills and benedenia seriolae from the skin of japanese yellowtail seriola quinqueradiata in japan were investigated in vivo. eggs were collected every 3 h from sexually mature h. heterocerca and b. seriolae infecting 3 s. quinqueradiata kept individually over 3 consecutive days and exposed to alternating periods of illumination and darkness (ld 12:12; light on 06.00, light off 18.00) and maintained at 23.8 +/- 0.1 degrees ... | 2008 | 18700993 |
| wildlife as reservoirs for parasites infecting commercial species: host specificity and a redescription of kudoa amamiensis from teleost fish in australia. | parasites of the genus kudoa (phylum myxozoa) have long been known to cause considerable losses to finfish aquaculture. one such parasite species, kudoa amamiensis, causes unsightly white cysts in the skeletal muscle of yellowtail kingfish, seriola quinqueradiata, in japan rendering the fillets unmarketable. the authors who characterized k. amamiensis, egusa & nakajima, 1980, hypothesized that yellowtail kingfish, as non-natives to the area, were accidental hosts of the parasite and that it norm ... | 2008 | 19238745 |
| molecular characterization, tissue distribution patterns and nutritional regulation of igfbp-1, -2, -3 and -5 in yellowtail, seriola quinqueradiata. | insulin-like growth factor-binding proteins (igfbps) play a vital role in regulating the biological activities of igfs. in this study, we cloned and determined full-length cdna sequences of yellowtail igfbp-1, -2, -3 and -5. their tissue distribution was determined by real-time quantitative rt-pcr, which revealed that igfbp-1, -2, -3 and -5 are widely distributed in yellowtail tissues. in yellowtail, both igfbp-1 and -2 are highly expressed in the liver, igfbp-3 is predominantly expressed in the ... | 2009 | 19523384 |
| identification of two distinct types of beta-2 microglobulin in marine fish, pagrus major and seriola quinqueradiata. | two types of beta-2 microglobulin (beta2m) were identified in red seabream and yellowtail from expressed sequence tag (est) analyses of kidney and spleen cells. a cluster of 21 ests from red seabream showed high homology to beta2m from other teleosts, while another cluster containing 7 ests was also homologous to beta2m. similarly, two clusters containing 21 and 2 ests were identified to be homologous to beta2m in yellowtail. the genes in the large and small clusters of each fish were designated ... | 2010 | 19819561 |
| molecular cloning and characterization of adult sparus aurata hemoglobin genes. | among teleosts, sparus aurata occupies a prominent place in the gastronomic and economic fields of the mediterranean basin and other geographic districts. the knowledge of its molecular structures and functional features, such as hemoglobin, may be helpful to understand the adaptive biochemical mechanisms that allow this fish to live under extreme conditions, including fish farming. in sparus aurata red blood cells two different alpha and one beta hemoglobin genes have been identified. the alpha ... | 2010 | 20210659 |
| molecular diagnosis of myxobolus spirosulcatus associated with encephalomyelitis of cultured yellowtail, seriola quinqueradiata temminck & schlegel. | mass mortality of cultured yellowtail, seriola quinqueradiata, has recently been reported from fish farms in western japan. previous studies revealed that diseased fish were characterized by encephalomyelitis and presporogonic stages of a myxosporean-like parasite in the spinal cord. however, the parasite has remained unidentified because of the lack of mature stages being present. thus, in the present study, analysis of the small subunit ribosomal dna (18s rdna) of the parasite as well as in si ... | 2010 | 21091721 |
| differential gene expression of hsc70/hsp70 in yellowtail cells in response to chaperone-mediated autophagy. | a cell line derived from the tailfin of the marine teleost yellowtail fish seriola quinqueradiata was established to examine cellular temperature regulation in an ectothermic animal. three cytosolic members of the hsp70 family, heat-shock cognate proteins hsc70-1, hsc70-2 and heat-shock protein hsp70, were isolated from cultured yellowtail cells as stress-responsive biomarkers. expression of hsp70 was heat-inducible, in contrast to the hsc70-1 gene product, which was expressed constitutively. in ... | 2011 | 21205201 |
| organohalogen compounds and their metabolites in the blood of japanese amberjack (seriola quinqueradiata) and scalloped hammerhead shark (sphyrna lewini) from japanese coastal waters. | information on accumulation of polychlorinated biphenyl metabolites (oh-pcbs) and hydroxylated polybrominated diphenyl ethers (oh-pbdes) in the blood of marine fish is limited. the present study, we determined the residue levels and patterns of pcbs, oh-pcbs, pbdes, oh-pbdes and methoxylated pbdes (meo-pbdes) in the blood collected from scalloped hammerhead shark (sphyrna lewini) and japanese amberjack (seriola quinqueradiata), species of predatory fish at japanese coastal waters. the predominan ... | 2011 | 21782210 |
| Effect of dietary fluoride derived from Antarctic krill (Euphausia superba) meal on growth of yellowtail (Seriola quinqueradiata). | Yellowtail (Seriola quinqueradiata) is the most important cultured marine fish in Japan. Dietary fish meal for yellowtail in aquaculture was replaced with 0.0%, 15.4% and 100.0% Antarctic krill meal (KM0, KM15, and KM100) and with 0.0%, 15.4%, and 100.0% low-fluoride krill meal (LFK0, LFK15 and LFK100). The fish was fed to duplicate fish groups for 92d (KM trial) or 75d (LFK trial), and fish growth was monitored. Dietary fluoride (F(-)) concentrations (mgkg(-1)) were 110, 160, and 580 (KM0, KM15 ... | 2011 | 22113059 |
| change of volatile compounds in fresh fish meat during ice storage. | the change of volatile compounds in fresh fish meat during 3- to 4-d ice storage was investigated for several fishes using an electronic nose system and a gas chromatography-mass spectrometer (gc/ms) with headspace solid-phase micro-extraction (spme). principal component analyses for samples using the electronic nose system revealed that the increase of some volatile compounds during storage was rapid in sardine (sardinops melanostictus), jack mackerel (trachurus japonicus), and chub mackerel (s ... | 2011 | 22416694 |
| quantitative trait loci (qtl) associated with resistance to a monogenean parasite (benedenia seriolae) in yellowtail (seriola quinqueradiata) through genome wide analysis. | benedenia infections caused by the monogenean fluke ectoparasite benedenia seriolae seriously impact marine finfish aquaculture. genetic variation has been inferred to play a significant role in determining the susceptibility to this parasitic disease. to evaluate the genetic basis of benedenia disease resistance in yellowtail (seriola quinqueradiata), a genome-wide and chromosome-wide linkage analyses were initiated using f1 yellowtail families (n = 90 per family) based on a high-density linkag ... | 2013 | 23750223 |
| molecular analysis of dinucleotide microsatellite in growth hormone gene of asian seabass (lates calcarifer) from mumbal, india. | in the present study, out of four alleles amplified from seabass (lates calcarifer) genome inhabiting mumbai water by pcr using growth hormone (gh) gene-specific primers, two dna fragments (sgms1, 233 bp and sgms2, 239 bp) were eluted from gel, cloned using ptz57r (2.886 kb) vector into e. coli dh5α, characterized by restriction endonuclease analysis and sequenced by automated dna sequencer. after blasting and multiple alignment of the above sequences, sgms1 showed 97% and sgms2 93.3% homology w ... | 2015 | 26536806 |
| whole genome analyses of marine fish pathogenic isolate, mycobacterium sp. 012931. | mycobacterium is a genus within the order actinomycetales that comprises of a large number of well-characterized species, several of which includes pathogens known to cause serious disease in human and animal. here, we report the whole genome sequence of mycobacterium sp. strain 012931 isolated from the marine fish, yellowtail (seriola quinqueradiata). mycobacterium sp. 012931 is a fish pathogen causing serious damage to aquaculture farms in japan. dna dot plot analysis showed that mycobacterium ... | 2014 | 24879010 |
| genotypic characteristics of a mycobacterium sp. isolated from yellowtail seriola quinqueradiata and striped jack pseudocaranx dentex in japan. | in japan, a mycobacterium marinum-like mycobacterium was isolated from the yellowtail, seriola quinqueradiata. the species was identified as m. marinum by a commercial mycobacterial dna-dna hybridization kit. nevertheless, pcr restriction analysis of the dna of its rna polymerase β-subunit gene definitively showed that this mycobacterium sp. was m. ulcerans. pcr analysis revealed the genotypic characteristics of m. ulcerans in the mycobacterium sp., only the mup053 gene sequence being absent, as ... | 2013 | 23043488 |
| draft genome sequence of nocardia seriolae strain n-2927 (nbrc 110360), isolated as the causal agent of nocardiosis of yellowtail (seriola quinqueradiata) in kochi prefecture, japan. | we report the draft genome sequence of nocardia seriolae strain n-2927 (nbrc 110360), isolated from cultured yellowtail seriola quinqueradiata. rast annotation of the genome revealed 117 genes involved in the virulence, disease, and defense subsystem. eleven of these genes were predicted as antibiotic resistance genes. | 2015 | 25767227 |
| accumulation of hydroxyl lipids and 4-hydroxy-2-hexenal in live fish infected with fish diseases. | hydroxy lipids (l-oh) and 4-hydroxy-2-hexenal (hhe) levels as well as other parameters such as lipid level, lipid class, fatty acid composition, and other aldehydes levels in the liver of diseased fish were investigated. although significant differences in lipid level, lipid class, fatty acid composition, and other aldehyde levels were not always observed between normal and diseased fish, l-oh and hhe levels were significantly higher in the liver of the diseased fish than in that of the normal f ... | 2014 | 24390795 |
| development of an in vitro assay based on humoral immunity for quality control of oil-adjuvant pseudotuberculosis vaccine in yellowtail seriola quinqueradiata. | photobacterium damselae subsp. piscicida is an infectious pathogen that causes pseudotuberculosis in yellowtail fish. in japan, several oil-adjuvant vaccines for pseudotuberculosis have been approved for control of infectious diseases in aquaculture. before distribution of an approved fish vaccine, an artificial challenge test for quality control is performed by the manufacturer and national veterinary assay laboratory under pharmaceutical law of japan to confirm potency. in this study, artifici ... | 2014 | 24325870 |
| prevalence of red sea bream iridovirus among organs of japanese amberjack (seriola quinqueradiata) exposed to cultured red sea bream iridovirus. | red sea bream iridovirus (rsiv) is a representative of the genus megalocytivirus which causes severe disease to aquaculture fish, mainly in japan and south-east asia. however, information to assess the viral kinetics of rsiv in fish is limited since reports on experimental infection by the immersion route, which is the natural infection route, are scarce. in this study, a method to evaluate the titre of rsiv was first developed. experimental infections were continuously performed using rsiv cell ... | 2013 | 23784444 |
| status and future perspectives of vaccines for industrialised fin-fish farming. | fin fish farming is developing from extensive to intensive high industrial scale production. production of fish in high-density growth conditions requires effective vaccines in order to control persistent and emerging diseases. vaccines can also have significant positive impact on the reduced usage of antibiotics. this was demonstrated when vaccines were introduced in norway for atlantic salmon (salmo salar) in the late eighties and early nineties, resulting in a rapid decline of antibiotics con ... | 2013 | 23769873 |
| structural characterization of carangid fish myoglobins. | the primary structures of myoglobin (mb) from the following five carangid species were determined: yellowtail seriola quinqueradiata, greater amberjack seriola dumerili, yellowtail kingfish seriola lalandi, japanese horse mackerel trachurus japonicus, and silver trevally pseudocaranx dentex. the sequences were of varying composition both in the coding and in the noncoding regions, but all contained the open reading frame of 444 nucleotides encoding 147 amino acids. amino acid sequence identities ... | 2012 | 22361749 |
| [fatty acid composition of edible marine fish in zhoushan, zhejiang province]. | to analyze the main fatty acids in edible marine fish from zhoushan, zhejiang province. | 2013 | 24113107 |
| molecular and morphometric characteristics of ceratomyxa hamour n. sp. (myxosporea: bivalvulida) infecting the gallbladder of the orange-spotted grouper epinephelus coioides from the arabian gulf, saudi arabia. | ceratomyxa hamour n. sp. was found to infect the gallbladder of the orange-spotted grouper, epinephelus coioides located off the saudi arabian coast of the arabian gulf. the infection was reported as a free-floating spore in the bile, and pseudoplasmodia were not observed. mature spores were crescent-shaped and measured on average 7 μm in length and 16 μm in thickness. the polar capsule, meanwhile, had length to width measurements of 4 μm and 3 μm on average. a periodical survey was conducted th ... | 2015 | 25041508 |
| second generation physical and linkage maps of yellowtail (seriola quinqueradiata) and comparison of synteny with four model fish. | physical and linkage maps are important aids for the assembly of genome sequences, comparative analyses of synteny, and to search for candidate genes by quantitative trait locus analysis. yellowtail, seriola quinqueradiata, is an economically important species in japanese aquaculture, and genetic information will be useful for dna-assisted breeding. we report the construction of a second generation radiation hybrid map, its synteny analysis, and a second generation linkage map containing snps (s ... | 2015 | 26003112 |
| ichthyobacterium seriolicida gen. nov., sp. nov., a member of the phylum 'bacteroidetes', isolated from yellowtail fish (seriola quinqueradiata) affected by bacterial haemolytic jaundice, and proposal of a new family, ichthyobacteriaceae fam. nov. | a novel gram-stain-negative, rod-shaped (0.3 × 4-6 μm), non-flagellated, aerobic strain with gliding motility, designated jbka-6t, was isolated in 1991 from a yellowtail fish, seriola quinqueradiata, showing symptoms of bacterial haemolytic jaundice. 16s rrna gene sequence analysis showed that strain jbka-6t was related most closely to members of the family flavobacteriaceae in the phylum 'bacteroidetes'. furthermore, based on gyrb gene sequence analysis, jbka-6t was classified into a single cla ... | 2016 | 26554606 |
| whole-genome sequence of fish-pathogenic mycobacterium sp. strain 012931, isolated from yellowtail (seriola quinqueradiata). | the genus mycobacterium comprises a large number of well-characterized species, several of which are human and animal pathogens. here, we report the whole-genome sequence of mycobacterium sp. strain 012931, a fish pathogen responsible for huge losses in aquaculture farms in japan. the strain was isolated from a marine fish, yellowtail (seriola quinqueradiata). | 2013 | 23929466 |
| ceratomyxa aegyptiaca n. sp. (myxozoa: myxosporea) from the gall-bladder of solea aegyptiaca chabanaud (pleuronectiformes: soleidae) in a tunisian coastal lagoon. | a new marine myxosporean species, ceratomyxa aegyptiaca n. sp. is described from the gall-bladder of solea aegyptiaca chabanaud collected from the ghar el melh lagoon in northeastern tunisia. mature spores are elongate and crescent-shaped, measuring 8-11 μm in length and 48-58 μm in width. the polar capsules are spherical, 3.2-4 μm in diameter and equal in size. trophozoites are polysporous and float free in the bile or are attached on the epithelium of the gall-bladder. morphological data and m ... | 2012 | 22890377 |