Methods for altering the level of vitamin c and glutathione in plant cells by applying wavelengths of light from 400 nm to 700 nm.

摘要

A method of transiently altering the level of at least one phytochemical selected from Vitamin C and glutathione in a harvested plant cell comprising chlorophyll or in plant tissue comprising chlorophyll, the plant cell or tissue being capable of phtosynthesis, comprises the step of irradiating the cell or tissue with light of at least one wavelength selected from the range of wavelengths of 400 to 700nm so as to induce or saturate oxygen evolution at the photosystem II reaction centre.