Gene expression of pepsinogen during the larval development of red porgy (Pagrus pagrus)

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DOIResolve DOI: http://doi.org/10.1016/j.aquaculture.2005.04.044
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TypeArticle
Journal titleAquaculture
Volume248
Pages245252; # of pages: 8
SubjectPagrus pagrus; Pepsinogen; gastric glands; stomach acidification
AbstractOntogeny of stomach functionality during the larval development of the red porgy was studied from morphological, physiological and molecular perspectives. The aim of this study was to advance our understanding of the sequence of events occurring during the transition from alkaline to acid digestion in sparids. Gastric gland histological development was examined using haematoxylin-eosin staining. Pepsinogen mRNA was localized using in situ hybridization on 5–7 µm sections of paraffin embedded samples. Gastric pH in the lumen of the stomach was measured using a pH microelectrode. The first signs of gastric glands were apparent by 19 days after hatching (dah) and were fully morphologically developed on 26 dah approximately. Pepsinogen expression was evidenced in the gastric glands from 30 dah onwards. The decrease in gastric pH was detected in fed larvae above 35 dah.
Publication date
PublisherElsevier
Copyright noticeCopyright © 2005 Elsevier B.V. All rights reserved.
LanguageEnglish
AffiliationNRC Institute for Marine Biosciences; National Research Council Canada
Peer reviewedYes
NRC number1660
NPARC number3538579
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Record identifier26b1551b-19d3-4b4d-beb3-a590ddd78986
Record created2009-03-01
Record modified2016-05-09
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