抄録
An albino mutant (KU No. 1246) of sand oats was grown in several culture media or under different temperatures, and chlorophyll formation was observed in their leaves.
Higher concentrations of glucose (0.3-0.5M) in the basal medium resulted in a greater production of chlorophyll when albinos were grown at 21°C. On the other hand, albinos cultured under higher temperatures (21-30°C) also produced a larger amount of chlorophyll. However, the chlorophyll content of albino leaves was less than 10% of that of normal greens grown under the same conditions.
A similar increase of chlorophyll in albino was also observed in the media containing 0.1M glucose and a high concentration of mannitol (0.3-0.4M). Thus, it is presumed that a part of the effect of glucose might be of providing the medium with a high osmotic pressure which could be substituted by mannitol.
A vitamin-mixture and indole-3-acetic acid seem to be slightly effective on the chlorophyll formation in the albino plants.
