Jean Franc

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  • J. -M. Franc
  • Zeitschrift für Zellforschung und Mikroskopische…
  • 2004
Excretion and hydrostatic regulation of the Ctenophores depend on a particular set of special structures: the ciliated cell rosettes of the endodermal gastrovascular system. The peculiarity of these cell rosettes lies in a free communication between the mesoglea and the lumen of gastrovascular canals. Rapid liquid currents, without ionic discernment, are(More)
This paper reports a study on the sex determination system of the blue tilapia,Oreochromis aureus. Investigations were carried out using a pseudofemale line in two populations of O. aureus, known as Egyptian Population (EP) and Israel Population (IP). In O. aureus, males are the homogametic sex (ZZ/ZW), and sex reversal of fry with estradiol results in the(More)
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