6533b7d5fe1ef96bd1264f2c

RESEARCH PRODUCT

The Effect of Light on the Growth of Pea Plants and the Subsequent Influence in Shikimate Oxidoreductase (EC 1.1.1.25) Activity

Gunter M. RotheGottfried Hengst

subject

chemistry.chemical_classificationbiologyPhytochromefood and beveragesFar-redGeneral MedicinePhotosynthesisEnzyme assayHorticultureEnzymechemistryOxidoreductaseBotanybiology.proteinWhite lightDry matter

description

Summary Pea plants were cultured in white light, red and far red light, and in the dark during a period of three weeks. At several states of development we investigated the activity of the enzyme shikimate oxidoreductase, the amount of fresh and dry matter, and the contents of protein in stem, leaves, cotyledons, and roots. The enzyme activity was found to be distributed organ-specifically and uninfluenced by the phytochrome system, but it was significantly depressed in plants grown in the dark compared to plants grown in white light. Enzyme activity occurred also in non photosynthetic plants. Regarding the different light conditions the activity of shikimate oxidoreductase was found to correlate with the specific growth of a certain plant part, and therefore we conclude that enzyme activity is under the influence of differentiational and growth processes which, for their part, are influenced by light.

https://doi.org/10.1016/s0044-328x(81)80028-1