Analyses of the Differential Radiosensitivity of Developing Reproductive Tissues in Habrobracon Juglandis (Ashmead) to Ionizing Radiation

Publisher Website
Google Scholar
Abstract
Significant developmental stages throughout the life-cycle of the holometabolous and ectoparasitic insect, Habrobracon juglandis (Ashmead) were x-rayed with 300 r increments until sterility was illustrated by adult performance. Because of parthenogenetic male production, attention was focused on females. Cytological examination of ovarioles from adults x-rayed at the different stages gave rise to three conclusions concerning the radiopathology of the reproductive system: (1) regardless of dose, somatic tissues functioned normally to produce four ovariole sheaths; (2) radiation of larvae adversely affected the trophocytes rather than the oocyte itself, apparently the damage is chromosomal; (3) radiation of pupae interfered with egg-nurse syncytia differentiation from oogonia.