Parthenogenesis in Urechis caupo (Echiura) II. Role of intracellular pH in parthenogenesis induction
نویسندگان
چکیده
منابع مشابه
Role of Parathormone in Parthenogenesis of Rickets
Parathormone (PTH) is composed of four glands embedded in the thyroid gland, but its function is mainly to keep calcium in the blood within normal range. It has got sensitive receptors that trigger the PTH to act in correcting serum calcium. As calcium is important for the normal functioning of many organs including vital organs like heart and brain, the PTH has to be prompt in maintaining calc...
متن کاملIonic mechanism of the fertilization potential of the marine worm, Urechis caupo (Echiura)
Microelectrode and tracer flux studies of the Urechis egg during fertilization have shown: (a) insemination causes a fertilization potential; the membrane potential rises from an initial level of -33 +/- 6 mV to a peak at +51 +/- 6 mV (n = 16), falls to a plateau of about +30 mV, then returns to the original resting potential 9 +/- 1 min (n - 10) later; (b) the fertilization potential results f...
متن کاملautopolyploidy and parthenogenesis in animals
6 1 Division of Epigenetics, DKFZ-ZMBH Alliance, German Cancer Research Center (DKFZ), 7 Im Neuenheimer Feld 580, 69120 Heidelberg, Germany 8 2 Institute for Environmental Sciences, University of Koblenz-Landau, Forststrasse 7, 76829 9 Landau, Germany 10 3 Institute of Pharmacy and Biochemistry, Johannes Gutenberg-University Mainz, 11 Staudingerweg 5, 55128 Mainz, Germany 12 * present address: ...
متن کاملPhenotypic evolution and parthenogenesis
Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your perso...
متن کاملThelytokous parthenogenesis in eusocial Hymenoptera.
Female parthenogenesis, or thelytoky, is particularly common in solitary Hymenoptera. Only more recently has it become clear that many eusocial species also regularly reproduce thelytokously, and here we provide a comprehensive overview. Especially in ants, thelytoky underlies a variety of idiosyncratic life histories with unique evolutionary and ecological consequences. In all eusocial species...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Development, Growth and Differentiation
سال: 1997
ISSN: 0012-1592,1440-169X
DOI: 10.1046/j.1440-169x.1997.00010.x