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Quarterly Journal of Microscopical Science, Vol s3-101, 295-297, Copyright © 1960 by Company of Biologists

An Electron Microscope Study of Bacteria in the Oocytes and Follicle Cells of Blatta Orientalis

R.A. R. GRESSON 1 and L. T. THREADGOLD 1

1 Department of Zoology, the Queen's University of Belfast, Northern Ireland, and the Department of Anatomy, Dalhousie University, Halifax, Nova Scotia, Canada

The bacteria present in the oocytes and follicle cells of Blatta orientalis Linn, were studied by means of electron microscopy. Bacteria are present in the follicle cells surrounding young oocytes, from where they invade the peripheral ooplasm. Each bacterium in an oocyte soon becomes surrounded by a system of membrane-like structures that form an outer covering. Later the bacteria congregate at the poles of the oocyte. An oval body was visible in one electron micrograph; this probably represents a stage in the life-history of the organism.






© The Company of Biologists Ltd 1960