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GROWTH OF GONIUM MULTICOCCUM IN SYNTHETIC MEDIA 1
Author(s) -
Saito Shôichi
Publication year - 1972
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/j.1529-8817.1972.tb04020.x
Subject(s) - biology , glutamine , ammonia , nitrite , yield (engineering) , thiamine , urea , biochemistry , arginine , nitrate , uric acid , zoology , nuclear chemistry , food science , amino acid , ecology , chemistry , materials science , metallurgy
SUMMARY Nutrient requirements of Gonium multicoccum (strains 7–1 and 7–2) were investigated in detail. Acetate supported, most efficiently growth in both continuous light and dark. Acetate could be replaced with pyruvate or lactate in the continuous light, but not in the dark. Sugars were completely ineffective. Thiamine was required for optimum growth. The addition of B 12 reduced lag phase, but it did not change the final yield. As the sole nitrogen source, nitrate, ammonia, and urea were equally effective. Nitrite, arginine, glutamine, and uric acid, supported scant growth. Examination of the major and minor mineral requirements resulted, in an optimal medium. A growth rate as high as 5.8 doublings per day was obtained at 25 C in continuous light.