L'activiation de l'oeuf de Xenopus laevis laevis

ترتیب اعصای جانبی در دم لارو of Xenopus laevis

Normal Table of Xenopus Laevis

havioral performance, and Konorski proposes that the mental experience depends on the occurrence of particular nervous processes in a similar way as overt behavior is correlated with the activity of specific cerebral structures. In Konorski's words, "In this way, the ultimate goal of brain physiology , consisting in conclusions about the mental experiences of a subject from the electrical activ...

Cortical grafting in Xenopus laevis.

T H E amphibian egg bears a cortex as the periphery of its cytoplasm. The interpretation by Dalcq & Pasteels (1937) of experiments performed by Pasteels (1938, 1940, 1941), in which fertile eggs of Rana fusca were centrifuged or inverted, led to the suggestion that the cortex possesses properties which control the course of development to some degree. It appeared that the properties of the cort...

Antiporter in Xenopus Laevis Oocytes

The amiloride-sensitive Na + /H + antiporter in defolliculated oocytes of Xenopus laevis was characterized by measurements of H Na + influx and apparent H + efflux. Uptake of ^Na"" was linear over a 90-min incubation period and was inhibited approximately 80% with 5xlO~moll~ amiloride. Amiloride-sensitive sodium uptake was reduced following collagenase treatment or oocyte aging. Ko 5 for amilor...

Microinjection of Xenopus Laevis Oocytes

Microinjection of Xenopus laevis oocytes followed by thin-sectioning electron microscopy (EM) is an excellent system for studying nucleocytoplasmic transport. Because of its large nucleus and high density of nuclear pore complexes (NPCs), nuclear transport can be easily visualized in the Xenopus oocyte. Much insight into the mechanisms of nuclear import and export has been gained through use of...