Amphipod intermediate host of Polymorphus minuius (Acanthocephala), parasite of water birds, with notes on ultrastructure of host-parasite interface

Title:

Amphipod intermediate host of Polymorphus minuius (Acanthocephala), parasite of water birds, with notes on ultrastructure of host-parasite interface

Creator:

Dezfuli, Bahrain Sayyaf and Giari, Luisa

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:caf2a48d-711b-40b8-802f-66b6c5bfe168
uuid:caf2a48d-711b-40b8-802f-66b6c5bfe168
urnnbn:urn:nbn:cz:aba007-000dra

Subject:

intermediate host, acanthoccphalan, freshwater birds, and host-parasite interface

Type:

model:internalpart and TEXT

Format:

print

Description:

From November 1997 to June 1998, 3,118 specimens of Echinogammarus stammeri (Karaman, 1931) (Amphipoda) were collected from the River Brenta (Northern Italy) and examined for larval helminths. Larvae of Polymorphus minuius (Goeze, 1782) singly infected the hemocoel of 23 (0.74%) crustaceans; all these larvae were cystacanth stages. This is the first record of Polymorphus minuius in E. stammeri. Some cystacanths had their forebody and hindbody fully inverted. Parasites were bright orange in colour and each was surrounded by a thin acellular envelope. This envelope likely protects the developing parasite larva from cellular responses of the amphipod. Hemocytes were seen adherent to the outer surface of the envelope. The sex ratio among the parasitised E. stammeri was almost 1:1. All Polymorphus minutus larvae were central in the amphipod body, made intimate contact with host internal organs, and frequently induced a marked displacement of them. None of the infected females of E. stammeri. carried eggs or juveniles in their brood pouch. In five hosts, Polymorphus minuius co-occurrcd with the cystacanth of another acanlhocephalan, Pomphorhynchus laevis (Millier, 1776), a parasite offish.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

117-122 and 39-44

Source:

Folia parasitologica | 1999 Volume:46 | Number:2

Harvested from:

CDK

Metadata only:

false