Xenopus XsalF

Xenopus XsalF: anterior neuroectodermal specification by attenuating cellular responsiveness to Wnt signaling.

Here we show that XsalF, a frog homolog of the Drosophila homeotic selector spalt, plays an essential role for the forebrain/midbrain determination in Xenopus. XsalF overexpression expands the domain of forebrain/midbrain genes and suppresses midbrain/hindbrain boundary (MHB) markers and anterior hindbrain genes. Loss-of-function studies show that XsalF is essential for the expression of the fo...

Xenopus

Who or what is Xenopus? Xenopus (literally ‘strange foot’) is a genus of aquatic frogs that are native to southern Africa. These frogs are remarkably tolerant to starvation, disease, and other insults, allowing the genus to span more than 45 degrees of latitude in Sub-Saharan Africa. This formidable constitution also makes them very easy to keep in captivity, and thus Xenopus frogs are very wid...

ترتیب اعصای جانبی در دم لارو of Xenopus laevis

Xenopus Oocytes

lnjection of Xenopus oocytes with poly(A)+ mRNA isolated from different plants (maize, cucumber, and squash) results in the appearance of a voltageand time'dependent, potassium-selective, outward current that is similar to the outwardrectifying potassium current recorded in many higher plant cells. Maize shoots were found to be especially enriched in mRNA encoding such activity. A cDNA library ...

Xenopus oocytes

The induction of amphibian oocyte maturation with progesterone as well as the activation of sea urchin eggs at the time of fertilization result in increased protein synthesis. The increase in both cases involves the recruitment of maternal mRNA onto polysomes. Further, it has been reported that sea urchin eggs, like full-grown Xenopus oocytes, contain no spare translational capacity based on th...