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Chapter 1,063

Development of the female germ cells and process of internal fertilization in the two-spotted spider mite Tetranychus urticae Koch (Acariformes : Tetranychidae)

Feiertag Koppen, C.C.M.; Pijnacker, L.P.

International Journal of Insect Morphology and Embryology 11(5/6): 271-284

1982


DOI: 10.1016/0020-7322(82)90016-2
Accession: 001062552

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The origin, histochemical composition and interrelation of the ovarian cells, the karyology of the oogenesis and the internal fertilisation of Tetranychus urticae Koch were studied. Oogonial mitoses give rise to syncytia of 4 primary oocytes. In contact with the haemolymph, these cells differentiate into 1 growing oocyte and a 3-nucleate nurse cell; otherwise they form cells sustaining the morphology of the ovary.

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