Oguchi disease is a rare autosomal recessive form of congenital stationary night-blindness that is characterized by a golden tapetal
The junction between the tapetal
and non tapetal
area were uneven with scattering of some tapetal
cells while in long haired breeds like Golden Retriever, Cocker Spaniel, sharply demarcated in short haired breeds like Pugs.
When pollen grains become mature, the tapetal
cells were degenerated, In meiotic division, the middle layers cells start a degeneration process.
Since the early days of orbicule-research, a positive correlation was hypothesised between the presence of orbicules and a parietal tapetum type (von Ubisch, 1927; von Kosmath, 1927), although several species were identified with parietal tapetal
cells but lacking orbicules (Huysmans et al.
The visual cells in these eyes bend around the tapetum, exiting through the opening between the adjacent tapetal
At first the fundus appeared dull and uniform grey brown and the tapetal
fundus were not differentiated.
At about the time the pollen tetrad appears, the walls of the tapetal
cells become indistinct, and the tapetal
cells degenerate at their original site.
At the stage of anther dehiscence, there was one-layer anther wall of endothecium and the tapetal
layer was digested completely (Fig1 Q) to nourish the pollen grains.
A oftalmoscopia, observa-se atenuacao vascular, palidez de papila, hiperreflexia da area tapetal
pelo afinamento da retina e despigmentacao da area nao-tapetal
tissues of the seed parent, whereas interactive proteins in flowering plants are tapetal
Uehara & Murakami (1995) observaron la disposicion de los microtubulos del tapete durante el proceso de formacion de las esporas y mostraron la formacion de tapetal
gaps (aqui llamadas camaras plasmodiales), alrededor de las tetradas y posteriormente alrededor de las esporas en formacion.
After removing most of the vitreous, the retina was gently peeled from the underlying tapetal
region and incubated for 50 min in a modified culture medium containing 1.