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Verfasst von:Vogt, Günter [VerfasserIn]   i
Titel:Cytopathology and immune response in the hepatopancreas of decapod crustaceans
Verf.angabe:Günter Vogt
E-Jahr:2020
Jahr:February 27, 2020
Umfang:48 S.
Fussnoten:Gesehen am 04.06.2020
Titel Quelle:Enthalten in: Diseases of aquatic organisms
Ort Quelle:Oldendorf, L. : Inter-Research, 1994
Jahr Quelle:2020
Band/Heft Quelle:138(2020), Seite 41-88
ISSN Quelle:1616-1580
Abstract:The hepatopancreas of decapod crustaceans is used as an example to illustrate the range of cytopathologies, detoxification mechanisms, and immune responses that environmental toxicants and pathogens can induce in a single organ. The hepatopancreas is the central metabolic organ of decapods and consists of hundreds of blindly-ending tubules and intertubular spaces. The tubular epithelium contains 5 structurally and functionally different cell types, and the interstitium contains haemolymph, haemocytes, connective tissue, and fixed phagocytes. Some physiological conditions such as moulting and starvation cause marked but reversible ultrastructural alterations of the epithelial cells. Environmental toxicants induce either detoxification mechanisms or structural damage in cells, depending on toxicant and concentration. The hepatopancreas is also a main target organ for pathogens, mainly viruses, bacteria, and protists that enter the body via the digestive tract and gills and replicate in the hepatopancreatocytes. The cytopathologies caused by toxicants and pathogens affect single cell types specifically or, more often, several cell types simultaneously. Pathogenesis often begins in a certain cell organelle such as the nucleus, mitochondrion, or endoplasmic reticulum, spreads to other organelles, and ends with death of the infected cell. Fixed phagocytes in the interstitium capture and degrade pathogens that move from the infected tubules into the intertubular spaces or enter the hepatopancreas via circulation. Relatively few disease agents elicit the melanisation and encapsulation reaction that encloses infected tubules by a rigid melanised capsule and kills the entrapped pathogens.
DOI:doi:10.3354/dao03443
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext ; Verlag: https://doi.org/10.3354/dao03443
 Volltext: https://www.int-res.com/abstracts/dao/v138/p41-88/
 DOI: https://doi.org/10.3354/dao03443
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Cell death
 Cytopathology
 Decapoda
 Detoxification
 Hepatopancreas
 Immune response
 Pathogen
K10plus-PPN:1699753466
Verknüpfungen:→ Zeitschrift

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