Cultivation of the early chick embryo in vitro

1943 ◽  
Vol 87 (4) ◽  
pp. 365-369 ◽  
Author(s):  
Alexis L. Romanoff
Development ◽  
1960 ◽  
Vol 8 (4) ◽  
pp. 369-375
Author(s):  
P. H. S. Silver

It seems to be generally accepted that experimenting in ovo on the chick during the early stages of development (up to about 48 hours) is fraught with the greatest difficulty. After about this time no serious technical problems arise and a high proportion of successful results can be expected. It is natural to ask why there should be this change-over from extreme difficulty to reasonable simplicity. New (1955) attributed to this ‘inaccessibility of the chick embryo in the egg’ the invention of his own and many other in vitro methods during the last 30 years. There is no doubt that, when short-term experiments only are required, in vitro methods will probably always be preferred. But all in vitro methods suffer from the disadvantage that the embryo cannot be expected to survive for more than 48 hours or so after explantation.


Nature ◽  
1976 ◽  
Vol 263 (5578) ◽  
pp. 588-591 ◽  
Author(s):  
A. K. DESHPANDE ◽  
M. A. Q. SIDDIQUI

1966 ◽  
Vol 44 (4) ◽  
pp. 661-676 ◽  
Author(s):  
Robert P. Thompson

To demonstrate the phenomenon of homologous inhibition by clearly interpretable results in a readily reactive system, experiments were carried out to study the effect of chick whole eye extract on the development of the vesicular lens of the chick embryo in vitro. The heads of embryos of 11 through 13 somites were explanted onto nutrient medium diluted with varying amounts of the extract, and cultured for 30 hours. A total of 35 embryos exposed to concentrations of 1:1, 1:2, and 1:4 (extract to medium) showed complete inhibition of lens vesicle formation. Of a total of 53 embryos on concentrations of 1:8, 1:16, 1:32, and 1:64, more than 50% showed inhibition of vesicle formation. The inhibitory effect disappeared at a concentration of 1:128. Control material exposed to some equivalent concentrations of nutrient medium – saline mixtures showed inhibition of vesicle formation in only 15% of 33 embryos. Of a total of 27 control embryos exposed to ventricular muscle extract, approximately one-third showed inhibition of vesicle formation at concentrations of 1:8 and 1:16, with the inhibitory effect disappearing at 1:32. The implications of this result are discussed. Other factors and control experiments are described and their value is assessed.


Cells ◽  
2018 ◽  
Vol 7 (2) ◽  
pp. 9 ◽  
Author(s):  
José Serrado Marques ◽  
Vera Teixeira ◽  
António Jacinto ◽  
Ana Tavares

1948 ◽  
Vol 68 (2) ◽  
pp. 263-266 ◽  
Author(s):  
A. M. Schechtman

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