6533b86dfe1ef96bd12c9e4f

RESEARCH PRODUCT

Studies on the Content of P 700 and Cytochromes in Sinapis alba During Growth Under Two Different Light Intensities

A. WildH. Grahl

subject

Cytochrome fbiologyChemistryBotanySinapisfood and beveragesRainforestbiology.organism_classificationPhotosynthesisElectron transport chainRedoxMaximum rate

description

Sinapis alba was grown under two extremely different light intensities. We obtained two different modifications which hold several physiological and biochemical characteristics comparable to the relations in light- and shade plants. In the strong light the maximum rate of CO2-uptake increases within five days to a three-fold rate. At the same time the content of several redox systems of photosynthetic electron transport increases while the content of P 700 remains equivalent in both types of plants. In the high-light plants we find a ratio P 700: Cytochrome f of 1 but a ratio of 3 in the low-light plants. These ratios could be probably essential features of various sun- and rainforest species. The present results cannot indicate the specific role of P 700 in photosynthetic electron transport especially in the low-light plants.

https://doi.org/10.1007/978-94-010-1957-6_11