Results 191 to 200 of about 92,026 (241)
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Cold Spring Harbor Protocols, 2007
INTRODUCTION“Einstecks” refers to a procedure for placing a piece of tissue into the blastocoel of an early gastrula, in order to assess the inductive potential of the introduced tissue. The foreign tissue adheres to surrounding tissue and becomes incorporated into the host embryo.
Hazel L, Sive +2 more
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INTRODUCTION“Einstecks” refers to a procedure for placing a piece of tissue into the blastocoel of an early gastrula, in order to assess the inductive potential of the introduced tissue. The foreign tissue adheres to surrounding tissue and becomes incorporated into the host embryo.
Hazel L, Sive +2 more
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Alternative housing for Xenopus laevis
Lab Animal, 2008At the authors' facility, housing arrangements for Xenopus laevis were cumbersome and labor-intensive, requiring technicians to wash frog tanks by hand several times a week. The authors describe an alternative housing solution they implemented by modifying a rack system that was originally used to maintain zebrafish.
Jaime, White-James +3 more
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Antigens of the lens of Xenopus laevis
Experimental Eye Research, 1968The antigens of the lens of Xenopus laevis were investigated by elect rophoresis, immunological double-diffusion methods and immuno-electrophoresis. Twenty-two lens antigens were detected. A new nomenclature for lens proteins is suggested.
J C, Campbell, R M, Clayton, D E, Truman
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The Physiology of the Xenopus laevis Ovary
2006Xenopus laevis has been used for many decades to study oocyte development and maturation. The Xenopus oocytes' large size, relative abundance, and clearly defined progression of physical characteristics from oogonia to eggs make them ideal for studying oogenesis.
Melissa A, Rasar, Stephen R, Hammes
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Synaptonemal Complexes of Xenopus laevis
Journal of Heredity, 1992Synaptonemal complexes (SCs) have been analyzed in spread Xenopus spermatocytes and oocytes. They showed all the usual features of animal SCs in addition to a high incidence of centromere mismatching. A centriole pair is visible throughout zygotene and pachytene.
J, Loidl, D, Schweizer
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The spindle checkpoint in Xenopus Laevis
Frontiers in Bioscience, 2008The spindle checkpoint ensures accurate chromosome segregation by delaying anaphase onset until all kinetochores have properly established bipolar attachment to spindle microtubules. This mechanism is important for all eukaryotic cells and is evolutionarily conserved.
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FGFR3 expression in Xenopus laevis
Gene Expression Patterns, 2010We studied the expression of FGF receptor 3 (FGFR3) mRNA throughout early development of Xenopus laevis by RT-PCR and in situ hybridization. RT-PCR shows that FGFR3 mRNA is localized within the gastrula; regionalized staining is detected by the neural plate stage and continues throughout embryonic development.
Pope, Amanda Popielski +3 more
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Journal of Molecular Biology, 1973
Abstract Ribosomal RNA synthesized by hybrid frogs from the cross between Xenopus laevis and Xenopus mulleri was analyzed by molecular hybridization with purified ribosomal DNA from each species. Although the 18 S and 28 S rRNA sequences are indistinguishable between these two species, the remaining 10% of the 40 S rRNA precursor molecule of each ...
T, Honjo, R H, Reeder
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Abstract Ribosomal RNA synthesized by hybrid frogs from the cross between Xenopus laevis and Xenopus mulleri was analyzed by molecular hybridization with purified ribosomal DNA from each species. Although the 18 S and 28 S rRNA sequences are indistinguishable between these two species, the remaining 10% of the 40 S rRNA precursor molecule of each ...
T, Honjo, R H, Reeder
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Raman spectroscopy of Xenopus laevis oocytes
Methods, 2010This work reports on the application of Raman spectroscopy for the analysis of Xenopus laevis oocytes (stage-I). A two-color home-made microscope has been used for this investigation. In particular, a 785nm Raman probe has been used to acquire the spontaneous Raman scattering from the oocyte cytoplasm, while a 532nm probe has been employed to detect ...
RUSCIANO, GIULIA +6 more
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Alginate Coating of Xenopus laevis Embryos
Biotechnology Progress, 2000Xenopus laevis eggs were coated, immediately after squeeze-stripping and fertilization, with a thin layer ( approximately 50 microm) of film based on one of three different types of alginates which varied in their mannuronic/guluronic acid ratio. The alginate was cross-linked with either Ca or Ba ions at three different concentrations.
N, Kampf, C, Zohar, A, Nussinovitch
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