it is suggested ( a ) that all these treatments cause a rise in [ ca2+ ] i which interferes with normal , integrated cell division , so causing , in turn , abnormal embryogenesis , ( b ) that levels of [ ca2+ ] i are of importance in regulating cleavage , ( c ) that the mitochondria could well have a function in regulating [ ca2+ ] i during embryogenesis in xenopus , and ( d ) that vegetalizing agents may well act by promoting a rise in [ ca2+ ] i in specific cells in the amphibian embryo .
C0026237
mitochondria
C0007634
cells