Biochemistry of Anuran Metamorphosis
نویسندگان
چکیده
منابع مشابه
Replacement of the larval basement lamella by adult-type basement membrane in anuran skin during metamorphosis.
Ever since Gudernatsch (191. 3, 1914) proved that the mammalian thyroid gland contains an “ugerz~” which nil1 hasten metamorphosis when fed to amphibian larvae, biologists have been invtrstigating thcl mechanisms whereby the thyroid participates in controlling vertebrate development. Reviews by Allen ( 1938), Lynn and \I’achowski ( 1951 ), Etkin (1955), and Kollros (1959) should 1~ consulted fo...
متن کاملOne of the duplicated matrix metalloproteinase-9 genes is expressed in regressing tail during anuran metamorphosis.
The drastic morphological changes of the tadpole are induced during the climax of anuran metamorphosis, when the concentration of endogenous thyroid hormone is maximal. The tadpole tail, which is twice as long as the body, shortens rapidly and disappears completely in several days. We isolated a cDNA clone, designated as Xl MMP-9TH, similar to the previously reported Xenopus laevis MMP-9 gene, ...
متن کاملThe influence of visual and tactile stimulation on growth and metamorphosis in anuran larvae
1. Sensory modalities that allow tadpoles to assess their environment, and subsequently mediate their development, are not well understood. 2. By putting clay model tadpoles into the tanks with live tadpoles we have enhanced tactile and visual stimuli for tadpoles of three species ( Rana sylvatica , Bufo americanus and Xenopus laevis ) in a controlled fashion. The goal was to determine whether ...
متن کاملSkull development during anuran metamorphosis: III. Role of thyroid hormone in chondrogenesis.
Metamorphosis of cranial cartilages in anuran amphibians constitutes one of the most dramatic and extensive ontogenetic transformations in vertebrates. We quantitatively examined the role of thyroid hormone (3,3',5-triiodo-L-thyronine; T3) in mediating gross aspects of this morphological repatterning in the skull of the Oriental fire-bellied toad, Bombina orientalis. T3 was administered via pla...
متن کاملAnatomical and behavioral recovery from the effects of spinal cord transection: dependence on metamorphosis in anuran larvae.
This study of spinal cord injury in bullfrog (Rana catesbeiana) tadpoles using the neuroanatomical tracer horseradish peroxidase (HRP) was undertaken to determine (1) whether the same anatomical regions that normally give rise to ascending or descending spinal tracts do so following complete spinal cord transection and (2) whether the course of behavioral recovery could be related to the anatom...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1960
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)64551-x