PJB-1974-9
EFFECT OF HYDROSTATIC PRESSURE ON THE REDISTRIBUTION OF CELL ORGANELLES IN BRYOPSIS PLUMOSA (HUDS.) C. AG.
MUSTAFA SHAMEEL
Abstract
Bryopsis plumosa (Huds.) C. Ag. When centrifuged at 1000 r.p.m showed a concentration of cell organelles at the tip of ramuli, thus rendering it dark green. When left undistributed, the organelles were found to return to their normal position after a few hours. B. plumosa is an extreme barophobe (Shameel, 1973d). It showed cell morphological abnormalities after treatment to 250 atm and a considerable weight loss after subjection to 500 atm (Shameel and Ohno, 1972) with no induction of reproduction even after an exposure of 800 atm (Shameel, 1973b). The effect of pressures below 250 atm on the redistribution capability of cellular organelles in this alga was therefore examined.
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