Effect of red light on ribulose 1,5-bisphosphate carboxylase activity in pea leaves |
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Authors: | Elzbieta Romanowska H J Treumann |
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Institution: | (1) Department of Plant Physiology II, University of Warsaw, Krakowskie Przedmiescie 26/28, Warszawa, Poland;(2) Department of Biochemistry, University of Tubingen, 7400 Tubingen, Germany |
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Abstract: | The ribulose 1,5-bisphosphate activity and its relative content in pea (Pisum sativum L., cv. Bordi) seedlings grown either under white or red light were investigated. Plants grown under red light had a lower
ribulose 1,5- bisphosphate carboxylase (RuBPCO) activity as compared to plants grown under white light, if expressed on a
fresh mass. These activities were very similar under both lights, as calculated on protein basis, although the relative content
of RuBPCO was higher in the red one. The activity of RuBPCO under red light corresponds to the lower rate of net photosynthesis.
The results are discussed in respect to possible presence of RuBPCO inhibitor in pea plants growth under red light. |
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