A morphometric study of early ovarian development in pouch young of the brushtail possum (Trichosurus vulpecula)

Abstract

This first quantitative study of ovarian follicle development in the female pouch young of the brushtail possum provides a basis for the temporal definition of ovarian maturation in this marsupial species. The pattern of germ cell proliferation and development is similar to that seen in eutharian mammals.

Ultrastructure of oogenesis in the brushtail possum

“…Early studies were performed on Didelphis virginiana (Everett, 1942;Martinez-Esteve, 1942;Nelson and Swain, 1942;Morgan, 1943;Guraya, 1968), and later on peramelids (Lyne and Hollis, 1983;Ullmann, 1989), Macropus eugenii (Alcorn and Robinson, 1983), and Monodelphis domestica (Maitland and Ullmann, 1993). Several recent studies have been published on oogenesis in the brushtail possum, Trichosurus vulpecula, focusing respectively on aspects of oocyte and follicle growth , timing and numbers of stages of oogenesis (Eckery et al, 1996;Frankenberg et al, 1996;Shackell et al, 1996), and the histology of early stages of oogenesis and ovary development (Ullmann, 1996).…”

Stereological Assessment of Developing Mouse Ovarian Follicles in an in vitro Culture System

“…This approach lacks validity when dealing with tissue comprising of different types of cells and extracellular space. Previously, stereology has been used to monitor the growth and development of organs such as the human placenta (Simpson et al,1992) and ovaries of Trichosurus vulpecular (Shackell et al,1996).…”