Abstract

Tobacco stem tissues were isolated from plants systemically infected with tobacco mosaic virus (TMV) and grown on a chemically defined nutrient medium containing various growth substances. The effect of fluorescent light on TMV multiplication in callus tissues was investigated. The growth rate of TMV infecting callus tissues was higher in light conditions than in dark conditions. It is suggested that the stimulation in growth of TMV-infected callus tissues in light conditions is caused by the CO2 fixation.

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