Abstract
A Chlorococcum-like algae, S11C-6, grown on Bristol''s solution plus liver extract gave maximum germination (approx. 90%) 48-72 hours after 60-day-old zygospores had been incubated at 37[degree]C for 48-60 hours. Comparable results were obtained with zygospores from a 15-day-old culture. Similarly Chalmydomonas chalmydogama transferred to Petridishes containing Bristol''s agar showed approx. 90% germination within 48-96 hours after incubation for 48 hours at 37[degree]C. It is suggested that the method will be useful in genetic expts. where zygospore germination in short time and high frequency is desirable.

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