作者: Romano Dallai , Massimo Mazzini
DOI: 10.1016/S0022-5320(83)90093-X
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摘要: The spermatozoon of Lestremia lacks an acrosome and has a giant centriole that gives origin to axoneme with about 150 doublets. axonemal doublets, disposed in two opposite rows oriented antiparallel, have A doublets dynein arms B tubule filled dense proteinaceous material. Mitochondria fuse derivatives show cristae longitudinal crystallized axis. probable the is hypothesized more prolonged motility sperm comparison other gall midges related presence precise organization. spermatological results agree systematic position Lestremiinae at base evolutionary trend family Cecidomyiidae.