-transparent.png){kind=logo}
Improved methods of separation, identification and determination of phosphagens have been applied to the study of monosubstituted guanidines and phosphagenes in sea urchin eggs, before and after fertilization. We have been able not only to identify in these materials phosphoarginine, but also phosphocreatine and to detect an unknown phosphagen. After fertilization, free arginine and creatine decrease, within respect to unfertilized eggs, whereas phosphocreatine undergoes a large increase; phosphoarginine remains almost constant, and an unknown phosphagen appears. These observations allow to interprete the results of some authors, who, applyng less refined methods, found only an increase in phosphoarginine in the same materials.
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
May 1969,
Science (New York, N.Y.),
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
November 1975,
Biochemistry,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
March 1968,
Experimental cell research,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
August 1970,
Journal of cellular physiology,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
September 1976,
Developmental biology,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
January 1980,
Cell motility,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
October 1998,
The Biological bulletin,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
August 1973,
Proceedings of the National Academy of Sciences of the United States of America,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
July 1986,
Development, growth & differentiation,
S Bartolucci, and
M Lancieri, and
F di Jeso, and
M de Vincentiis
December 1970,
Experimental cell research,
