(1) Ophthalmoscopic examinations performed during recovery revealed changes of slight increase in tapetal islets, suggestive of a slight progression and organization within the tapetum followed by an arrest of the toxic insult within the tapetal tissue.
(2) Golden tapetal reflex without dark adaptation disappeared after 4 hours of dark adaptation, i.e.
(3) The development of the tapetal cell surface and associated structures in Avena has been followed from cell formation to senescence.
(4) Within the tapetal cells a few mitochondria and profiles of smooth endoplasmic reticulum are scattered peripherally while the majority of the cell organelles are clustered near the centrally located vesicular nucleus.
(5) Subsequent to that time the tapetal rodlets failed to accumulate electron-dense material, did not accumulate zinc, and degenerated primarily into spherical inclusion bodies of varying electron density.
(6) These observations led to this comparative study on several morphological, histochemical and biochemical parameters on mature ferrets, dogs and cats including: (1) the number of center tapetum cell layers, (2) thickness of center tapetum, (3) presence of a microtubule-like structure in each tapetal rod, (4) presence of electron-dense cores in tapetal rods after prolonged fixation in glutaraldehyde, (5) retention of reflection or color of tapetum after prolonged glutaraldehyde fixation, (6) zygomatic bones of eye orbits, (7) zinc content in tapetum, (8) cysteine in the tapetum, (9) cysteine sulfinic acid decarboxylase in liver, (10) thickness of retina from center tapetum, (11) anterior view of skull configuration, and (12) lateral view of skull configuration (jaw and teeth).
(7) Inner segments of both rods and cones were observed in the tapetal region.
(8) The disease initially could be diagnosed by findings of night blindness and ophthalmoscopic signs of tapetal hyperreflectivity in affected dogs that were approximately 1 year old.
(9) This is the first reported example of a nutritionally related degeneration of tapetal cells.
(10) This species possesses a choroidally located tapetum lucidum in the superior fundus and over this tapetal area, melanosomes are absent from the RPE cells.
(11) All cells in tapetal and nontapetal areas contained fluorescent inclusions with similar emission spectra (maximum = 539 nm).
(12) The cat medial interlaminar nucleus (MIN) receives inputs almost exclusively from tapetal retina, suggesting that the MIN has a special role in dim-light vision.
(13) The stripes occurred in one or both eyes in the non-tapetal fundus of the two lower quadrants.
(14) Fusions of an RNase gene and the reporter gene beta-glucuronidase to the A. thaliana A9 promoter demonstrated that in tobacco the A9 promoter is active solely in tapetal cells.
(15) A six-year-old boy with XRP having a tapetal reflex is described.
(16) In anthers, expression was detected at an earlier stage of flower development with GUS activity restricted to the tapetal cell layer.
(17) Lesions consisted of localized areas of hyperreflexia in the tapetal fundus, often associated with hyperpigmentation.
(18) It is speculated that the hereditary defect may be defective synthesis of the tapetal rodlet matrix or of the zinc-complexing substance of the tapetum.
(19) Light and electron microscopic features showed marked thinning and atrophy of the outer both the tapetal and non-tapetal retina appeared to be involved.
(20) In the non-tapetal fundus, dysplasia appeared as areas of decreased pigmentation.
Tapeti
Definition:
(n.) A small South American hare (Lepus Braziliensis).