Olfactory reactions in amphibians
نویسندگان
چکیده
منابع مشابه
Olfactory wiring logic in amphibians challenges the basic assumptions of the unbranched axon concept.
Olfactory receptor neurons extend axons into the olfactory bulb, where they face the challenge to integrate into existing circuitry. The consensus view is that in vertebrates individual receptor neurons project unbranched axons into one specific glomerulus of the olfactory bulb. We report here that, strikingly different from the generally assumed wiring principle in vertebrate olfactory systems...
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Nitric oxide synthase activity was studied by means of NADPH-diaphorase activity and nitric oxide synthase immunoreactivity in the main and accessory olfactory bulbs of the frog Rana perezi and the newt Triturus marmoratus. In both species, NADPH-diaphorase staining was observed in all olfactory fibers. Vomeronasal fibers were NADPH-diaphorase-positive in Triturus but they were NADPH-diaphorase...
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Amphibians have been widely used to study developmental biology due to the fact that embryo development takes place independently of the maternal organism and that observations and experimental approaches are easy. Some amphibians like Xenopus became model organisms in this field. In the first part of this article, the differentiation of the gonads in amphibians and the mechanisms governing thi...
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This review is a comparative analysis of retina regeneration in different amphibians. Special attention is given to the newt, which, unlike other vertebrates, retains the capacity for the regeneration of eye structures for all life. The review focuses on the sources of the cells which contribute to retina regeneration, proliferative activity of cells participating in regeneration, the factors w...
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T H E failure of de novo regeneration of extirpated bones in adult urodeles has been described repeatedly. Wendelstadt (1901) reported the absence of skeletal regeneration following the removal of either the ulna or radius from the otherwise intact limbs of salamanders. Reed (1903) and Morrill (1918) likewise failed to obtain regeneration of previously excised fibulae in salamander hind limbs. ...
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ژورنال
عنوان ژورنال: Journal of Experimental Zoology
سال: 1914
ISSN: 0022-104X,1097-010X
DOI: 10.1002/jez.1400160406