
TY  - JOUR
A1  - Poulson, DF 
A1  - Waterhouse, DF 
T1  - Experimental Studies on Pole Cells and Midgut Differentiation in Diptera
JF  - Australian Journal of Biological Sciences
JO  - Aust. Jnl. Of Bio. Sci.
Y1  - 1960
VL  - 13
IS  - 4
SP  - 541
EP  - 567
KW  - 
UR  - https://doi.org/10.1071/BI9600541 
N2  - Highly localized irradiation with ultraviolet of the posterior polar region of eggs of Drosophila melanogaster and Lucilia cuprina in pre.pole cell and pole cell stages results in reduction in numbers of the cuprophilic cells of the middle midgut as well as in reduction of gonad size and number. Carefully timed eggs were exposed to dosages of ultraviolet (from a source giving about 90 per cent. at wavelength 2536 A) ranging from 1200 to 2400 I-' W sec/cm2 over periods of 2-4 min. Treatments at the time of active pole cell formation were found to be most effective in producing defects of both gut and gonads, thus demon· strating the common origin of the cuprophilic cells of the middle midgut and the germ cells of the gonads. 
ER  -

