Life cycles and host-parasite relationships of Microsporidia in culicine mosquitoes

Title:

Life cycles and host-parasite relationships of Microsporidia in culicine mosquitoes

Creator:

Becnel, J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:9e9a526a-73ce-413d-93d4-d624c48a1367
uuid:9e9a526a-73ce-413d-93d4-d624c48a1367
urnnbn:urn:nbn:cz:aba007-000dhq

Subject:

Taxonomy, transmission, and ultrastructure

Type:

model:internalpart and TEXT

Format:

print

Description:

Ileterosporous (polymorphic) microsporidia in mosquitoes are characterized by intricate life cycles involving multiple spore types responsible for horizontal (per os) and vertical (transovarial) transmission. They affect two generations of the mosquito and some involve an obligate intermediate host. Heterosporous microsporidia are generally very host and tissue specific with complex developmental sequences comprised of unique stages and events. Full details on the intricate relationships between heterosporous microsporidia and their mosquito hosts have only recently been elucidated. Edhazardia aedis (Kudo, 1930) and Culicospora magna (Kudo, 1920) have developmental sequences in larvae that involve gametogony followed by plasmogatny and nuclear association to form diplokarya. These diplokaryotic stages then undergo karyogamy and form binucleate spores responsible for transovarial transmission. In the filial generation, haplosis occurs as a result of nuclear dissociation to produce uninucleate spores infectious to larval mosquitoes. Amblyospora cali-fornica (Kellen et Lipa, 1960) has similar sequences except that haplosis is by meiosis to produce spores infectious for a copepod intermediate host. A third spore type is formed in the intermediate host responsible for infection in a new generation of the mosquito host.

Language:

English

Rights:

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

Coverage:

91-96 and 13-18

Source:

Folia parasitologica | 1994 Volume:41 | Number:2

Harvested from:

CDK

Metadata only:

false