DSpace university logo mark
Advanced Search
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Fisheries > Articles in academic journal >

Immunohistochemical Examination of Experimental Streptococcus iniae Infection in Japanese Flounder Paralichthys olivaceus


File Description SizeFormat
FishPath36_169.pdf799.69 kBAdobe PDFView/Open

Title: Immunohistochemical Examination of Experimental Streptococcus iniae Infection in Japanese Flounder Paralichthys olivaceus
Other Titles: 実験的 Streptococcus iniae 感染ヒラメの発病過程に関する免疫組織化学的検討
Authors: Nguyen, Huu Thinh / Kanai, Kinya / Yoshikoshi, Kazuma
Authors (alternative): 金井, 欣也 / 吉越, 一馬
Issue Date: Sep-2001
Publisher: 日本魚病学会
Citation: 魚病研究 = Fish pathology 36(3) pp.169-178; 2001
Abstract: To investigate the course of Streptococcus iniae infection in Japanese flounder Paralichthys olivaceus, fish (average weight 118±14 g) were experimentally infected by oral and bath methods, and the distribution and multiplication of S. iniae in the fish were monitored by bacteriological and immunohistochemical examinations. S. iniae was detected first in relatively high numbers in the kidney and spleen. Viable counts of S. iniae in the blood, brain, liver, stomach, intestine, gill, skin mucus and nares were high only when those in the kidney and spleen were high. S. iniae-Iaden phagocytic cells were observed in the lumen of the blood vessels distributing in the organs and tissues in the initial stage of infection. Many fish showed hemorrhagic lesions on the fins, and the extracellular multiplication of S. iniae in the hemorrhagic fins was observed in the initial stage of infection. These observations were common among the fish challenged by either method. There was no evidence of the entrance of S. iniae through the stomach, intestine, gill, eye or olfactory pouches of nares. It was presumed that S. iniae entered directly from the water through the abrasive sites of fins and was disseminated by the blood circulation to cause systemic infection.
Keywords: Streptococcus iniae / Paralichthys olivaceus / experimental infection / streptococcosis / Japanese flounder / immunohistochemistry
URI: http://hdl.handle.net/10069/21964
ISSN: 0388788X
Rights: © 2001 The Japanese Society of Fish Pathology
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/21964

All items in NAOSITE are protected by copyright, with all rights reserved.

 

Valid XHTML 1.0! Copyright © 2006-2015 Nagasaki University Library - Feedback Powerd by DSpace