title: Calcium-cadmium competition in ovarian vitellogenic follicles of Galleria mellonella as revealed by X-ray microanalysis.
abstract: Dissected ovarioles of Galleria mellonella were exposed for 60 min to cadmium, supplied to insect culture medium in amount equalling that of calcium therein. The sections of ovarioles treated with a fixative precipitating both elements and embedded in epon were examined using energy-dispersive X-ray microanalysis system. Analysis of the digital maps obtained suggests a free inflow of Ca2+ and Cd2+, in approximately equal amounts. Calcium-cadmium competition was revealed within the whole sample as well as in the zoomed fragments comprising ooplasm filled with yolk and trophocyte nucleolus.
authors.affiliation: Department of Cell Biology, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw.
authors.forename: A
authors.initials: A
authors.lastname: Przełecka
authors.forename: K
authors.initials: K
authors.lastname: Mrozińska
mesh_terms: D000818:Animals; D002104:Cadmium / Q000378:metabolism*; D002118:Calcium / Q000378:metabolism*; D002466:Cell Nucleolus / Q000378:metabolism / Q000648:ultrastructure; D004577:Electron Probe Microanalysis; D005260:Female; D005306:Fertilization; D007091:Image Processing, Computer-Assisted; D007915:Lepidoptera / Q000378:metabolism*; D009865:Oocytes / Q000378:metabolism / Q000648:ultrastructure; D006080:Ovarian Follicle / Q000737:chemistry / Q000378:metabolism*; D016707:Tissue Fixation; D014818:Vitellogenesis / Q000502:physiology
chemical_list: D002104:Cadmium; D002118:Calcium