PJB-1973-1
REPRODUCTION INDUCED BY HIGH HYDROSTATIC PRESSURE IN CLADOPHORA GLOMERATA (L.) KUETZ FROM BALTIC SEA.
MUSTAFA SHAMEEL*
Abstract
The after effects of hydrostatic pressure on the cellular morphology of Cladophora glomerata were studied. Two experimental series, one of 5 hours’ and
the other of 20 hours’ pressure
duration were conducted at 15°C; the pressure levels being: 400, 500, 800 &
1000 atm. Abnormalities in the morphology of algal cells increased with the rise of pressure. The pressure treated algae exhibited a vigorous reproduction, producing abnormally the bi-and quadriflagellated zoospores with limited power of escaping through subterminal pores. The retained zoospores metamorphosed themselves to spherical cysts. Tnere was an initial increase in the intensity of rep -oduction with the
increase of hydrostatic pressure as well
as the time of pressure action. When both these factors reached the upper physiological limit of tolerance for
the alga, the reproduction intensity decreased sharply.
To Cite this article:
Download
