Details

Autor(en) / Beteiligte

• Chen, C.C.
• Laurence, B.R.

Titel

An ultrastructural study on the encapsulation of microfilariae of Brugia pahangi in the haemocoel of Anopheles quadrimaculatus

Ist Teil von

• International journal for parasitology, 1985, Vol.15 (4), p.421-428

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

1985

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• Chen C. C. and Laurence B. R. 1985. An ultrastructural study on the encapsulation of microfilariae of Brugia pahangi in the haemocoel of Anopheles quadrimaculatus. International Journal for Parasitology 15: 421–428. The encapsulation of microfilariae of Brugia pahangi in the haemocoel of Anopheles quadrimaculatus was studied ultrastructurally. The microfilariae was first seen enclosed in an acellular electron dense capsule as early as 10 min after the engorgement of the mosquitoes from a cat parasitized by filariae. Two hours later, the mosquito plasmatocytes spread onto and around the humoral capsule. A completed capsule, which was seen at 24–48 h, was composed of an inner humoral layer and outer cellular layer. After 1 week, some electron dense haemocytes were seen attached to the outer surface of the cellular layer. These results suggested that the encapsulation of microfilariae in the haemocoel of mosquitoes combines both humoral and cellular reaction; humoral encapsulation occurs first and cellular encapsulation takes place later. The significance of combined reactions of humoral and cellular encapsulation in the mosquito-filarial system is discussed with reference to the encapsulation reaction of other insects.