Two-phase partition studies of alkali cation complexation by ionophores

1974 ◽  
Vol 18 (1) ◽  
pp. 1-21 ◽  
Author(s):  
Duncan H. Haynes ◽  
Berton C. Pressman
Development ◽  
1986 ◽  
Vol 94 (1) ◽  
pp. 267-275
Author(s):  
C. P. Cottrill ◽  
Paul T. Sharpe ◽  
Lewis Wolpert

A technique which identifies cells differing in surface character, aqueous two-phase partition using thin-layer countercurrent distribution (TLCCD), has been used to study differentiation and pattern formation in the developing chick limb bud. The TLCCD profiles of cell populations, derived from various regions of morphologically undifferentiated mesenchyme from three different stages of limb development, have been compared. At no stage, or location, has the population been found to be homogeneous. Cells from progress zones and more proximal regions could all be resolved into several populations. The populations from progress zones at three different developmental stages were qualitatively similar but differed in the proportions of cells in each. The most striking differences in cell populations were those obtained from the most proximal region of the limb, closest to the flank, which represents the developmentally most advanced region.


1992 ◽  
Vol 84 (1) ◽  
pp. 121-133 ◽  
Author(s):  
Alfred Egger ◽  
D. James Moire ◽  
Gun Sellden ◽  
Anna Stina Sandelius

1990 ◽  
Vol 185 (2) ◽  
pp. 249-253 ◽  
Author(s):  
Jesús Osada ◽  
Hortensia Aylagas ◽  
José Sánchez-Prieto ◽  
Immaculada Sánchez-Vegazo ◽  
Evangelina Palacios-Alaiz

1981 ◽  
Vol 118 (1) ◽  
pp. 269-277 ◽  
Author(s):  
Werner Müller ◽  
Antonin Eigel

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