The effects of parasitism by Perkinsus marinus on the free amino acid composition of Crassostrea virginica mantle tissue

dc.acquisition-srcen_US
dc.call-noAcc#2704 c.1-2-Box#9en_US
dc.call-noJournal of Shellfish Researchen_US
dc.contract-noen_US
dc.contributor.authorSoniat, Thomas M. and Michael L. Koenigen_US
dc.contributor.otherJournal of Shellfish Researchen_US
dc.date.accessioned2010-02-15T16:58:02Z
dc.date.available2010-02-15T16:58:02Z
dc.date.issued1982en_US
dc.degreeen_US
dc.descriptionpgs. 25-28en_US
dc.description-otheren_US
dc.description.abstractSeventeen free amino acids were detected from oyster mantle tissue. Taurine, serine (serine plus asparagine and gultamine), glutamic acid, glycine, alanine, and beta-alanine, were found in concentrations greater than 30umol/g dry weight. Moderate concentrations (10 to 30 umol/g. dry weight) of aspartic acid and arginine were detected. Theonine, valine, methionine, isoeucine, leucine, tyrosine, phenylalinine, lysine, and histidine occurred in concentrations of less than 10 umol/g dry wt. This study corroborates the usefulness of the taurine-glycine ratio as a biochemical measure of stress. The close relationship between this ratio and level of parasitism suggests that P. marineus may be the agent of stress. Taurine and aspartic acid concentrations increased with increasing parasitism by Perkinsus marinus; the concentrations of glycine, alanine, isoleucine, leucine, beta-alanine, arginine, and total free amino acids decreased with increasing parasitism. Ratios of specific free amino acids with taurine showed a closer correlation with the level of parasitism than similar correlations of parasitism with individual amino acids. A correlation between the level of parasitism by P. marinus and the molar ratio of taurine-to-glycine showed a particularly close relationship (r=0.90, P<0.001).en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeTexas Coasten_US
dc.geo-codeTexasen_US
dc.geo-codeGalvestonen_US
dc.geo-codeGalveston Islanden_US
dc.geo-codeGalveston Bayen_US
dc.geo-codeUnited Statesen_US
dc.geo-codeOffats Bayouen_US
dc.history8/12/05 easen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/20504
dc.latitudeen_US
dc.locationGBIC Archival Collection; GBIC OFFICE Collection; TAMUG Periodical Collectionen_US
dc.longitudeen_US
dc.notesen_US
dc.placeHanover, PAen_US
dc.publisherNational Shellfisheries Associationen_US
dc.relation.ispartofseries2704.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectCrassostrea virginicaen_US
dc.subjectPerkinsus marinusen_US
dc.subjectparasitismen_US
dc.subjectparasitesen_US
dc.subjecthostsen_US
dc.subjectamino acidsen_US
dc.subjectphysiologyen_US
dc.subjectbiochemistryen_US
dc.titleThe effects of parasitism by Perkinsus marinus on the free amino acid composition of Crassostrea virginica mantle tissueen_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issuev.2, no.1en_US
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