development and abiotic stress: a centre of vulnerability.
Most of the genes showing anther-specific or predominant expression are related to tapetal
and pollen developments (Table 2).
The optic disc was more distinct, round and more prominent (due to presence of larger amount of myelin) and located within the tapetal
effect of an azalide antibiotic following oral administration in beagle dogs," Fundamental and applied toxicology: Official Journal of the Society of Toxicology, vol.
Oguchi disease is a rare autosomal recessive form of congenital stationary night-blindness that is characterized by a golden tapetal
At the ocular fundus examination horizontal bands were observed in the non-tapetal fundus area, as well as, mild peri-papillary edema (Figure 1), and tapetal
hyper-reflectivity zones (Figure 2) with retinal folds and active inflammation (Figure 3) and inflammatory exudates (Figure 4), which guided the diagnosis of active corio-retinitis.
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., 1998).
organization during sporogenesis in Psilotumnudum.
Structural adaptations include modifications to dioptric elements, to photoreceptor arrangement, and to presence or absence of tapetal
reflectors, while physiological adaptations may be to spectral (wavelength) sensitivity, absolute irradiance sensitivity, and temporal resolution (reviewed in Land and Nilsson, 2002).
Measurements from frontal sections rather than sagittal sections were used and the tapetal
periphery was taken to represent the limits of the visual cells and therefore define the width of the retina.
Male sterility was attributed to tapetal