Results 111 to 120 of about 137,221 (140)
Presence of tadpole and adult globin RNA sequences in oocytes of Xenopus laevis
, 1977 Stanley Perlman +2 more
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Xenopus borealis misidentified as Xenopus mulleri
Developmental Biology, 1977Abstract A species of frogs described in publications from our laboratory between 1971 and 1976 as Xenopus mulleri is in fact Xenopus borealis.
Donald D. Brown +2 more
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Studies on immunoglobulins of Xenopus borealis, Xenopus clivii and Xenopus muelleri
Journal of Experimental Zoology, 1976AbstractFollowing immunization with human IgG three species of anuran amphibians, Xenopus borealis, Xenopus clivii and Xenopus muelleri, were found to synthesize two molecular populations of antibodies associated with 19S and 7S fractions of the sera. These antibodies, designated high (HMW) and low (LMW) molecular weight immunoglobulins, were isolated ...
Mehrbanou Michea-Hamzehpour +3 more
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Trends in Cardiovascular Medicine, 1994
The amphibian embryo provides a convenient experimental system with which to study myogenesis. The earliest steps in the formation of axial and cardiac muscle are accessible for investigation using both embryological and molecular approaches. We review the origins of skeletal and cardiac muscle in the Xenopus embryo, the molecular markers available to ...
MOHUN T +3 more
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The amphibian embryo provides a convenient experimental system with which to study myogenesis. The earliest steps in the formation of axial and cardiac muscle are accessible for investigation using both embryological and molecular approaches. We review the origins of skeletal and cardiac muscle in the Xenopus embryo, the molecular markers available to ...
MOHUN T +3 more
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Polymely in Xenopus laevis [PDF]
Nature, 1958 IN several genera of the order Anura supernumerary limbs occur naturally1. They are usually extra hind limbs2. Polymely does not appear to have been reported in the genus Xenopus. The female toad (Xenopus laevis) described here came with a consignment of toads imported from South Africa in 1956. The toad measured 8.0 cm.
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The ultrastructure of Xenopus spermatozoon
Journal of Ultrastructure and Molecular Structure Research, 1986Abstract The spermatozoon of Xenopus consists of a coiled head 20 μm long and of a tail 40 μm long. The acrosome is a thin vesicle capping the anterior region of the nucleus. A manchette of mitochondria surrounds the posterior region of the nucleus, the two centrioles, and the beginning of the flagellum.
BERNARDINI, GIOVANNI BATTISTA +2 more
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Current Opinion in Genetics & Development, 1994
Although induction of neural tissue in vertebrates has been recognized since the experiments of Spemann and Mangold seventy years ago, only recently has the phenomenon been put onto a molecular footing. Three molecules, noggin, follistatin and fibroblast growth factor, have been shown to have neuralizing activity in various assays.
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Although induction of neural tissue in vertebrates has been recognized since the experiments of Spemann and Mangold seventy years ago, only recently has the phenomenon been put onto a molecular footing. Three molecules, noggin, follistatin and fibroblast growth factor, have been shown to have neuralizing activity in various assays.
openaire +3 more sources
Cold Spring Harbor Protocols, 2022
Adult frogs that are well-cared-for will give high-quality eggs and embryos for use in everyXenopusprotocol. Thoughtful frog husbandry is thus pivotal to successful research using these organisms. Protocols for successfully raising tadpoles, establishing and maintaining water quality, and detecting specific pathogens are key to maintaining healthy frog
Richard M. Harland, Hazel L. Sive
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Adult frogs that are well-cared-for will give high-quality eggs and embryos for use in everyXenopusprotocol. Thoughtful frog husbandry is thus pivotal to successful research using these organisms. Protocols for successfully raising tadpoles, establishing and maintaining water quality, and detecting specific pathogens are key to maintaining healthy frog
Richard M. Harland, Hazel L. Sive
openaire +2 more sources
1997
Publisher Summary This chapter discusses the xenopus replication assays. It describes the preparation and use of both Xenopus egg extracts and templates for in vitro DNA replication. This chapter outlines a range of methods commonly employed to assay DNA replication.
Mark A. Madine, Dawn Coverley
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Publisher Summary This chapter discusses the xenopus replication assays. It describes the preparation and use of both Xenopus egg extracts and templates for in vitro DNA replication. This chapter outlines a range of methods commonly employed to assay DNA replication.
Mark A. Madine, Dawn Coverley
openaire +3 more sources