Prolongation of photosynthetic induction as a consequence of interference with mitochondrial oxidative metabolism in mesophyll protoplasts of the pea (Pisum sativum L.)

dc.contributor.author Padmasree, K.
dc.contributor.author Raghavendra, A. S.
dc.date.accessioned 2022-03-27T03:51:35Z
dc.date.available 2022-03-27T03:51:35Z
dc.date.issued 1999-03-02
dc.description.abstract The restriction of mitochondrial oxidative metabolism by metabolic inhibitors caused a prolongation of induction of photosynthetic O2 evolution in mesophyll protoplasts of the pea (Pisum sativum L.) at both optimal and limiting CO2. There was a significant increase in the lag period of photosynthesis in the presence of oligomycin (an inhibitor of oxidative phosphorylation) or antimycin A (an inhibitor of cytochrome pathway), while the increase in lag was marginal in presence of salicylhydroxamic acid (SHAM) or propyl gallate (inhibitors of alternative oxidase (AOX) pathway). There was a pronounced decrease in steady-state levels of ribulose-1,5-bisphosphate (RuBP) in the presence of oligomycin or antimycin A, but not in the presence of SHAM or propyl gallate. Our results suggest that the restriction of the cytochrome pathway of mitochondrial electron transport or oxidative phosphorylation, leads to a prolongation of the photosynthetic induction period and a marked decrease in the steady state levels of RuBP.
dc.identifier.citation Plant Science. v.142(1)
dc.identifier.issn 01689452
dc.identifier.uri 10.1016/S0168-9452(98)00252-0
dc.identifier.uri https://www.sciencedirect.com/science/article/abs/pii/S0168945298002520
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/5785
dc.subject 1-5- bisphosphate
dc.subject Alternative pathway
dc.subject Cytochrome pathway
dc.subject Lag period
dc.subject Mitochondrial metabolism
dc.subject Pea (Pisum sativum)
dc.subject Photosynthetic induction
dc.subject Ribulose
dc.title Prolongation of photosynthetic induction as a consequence of interference with mitochondrial oxidative metabolism in mesophyll protoplasts of the pea (Pisum sativum L.)
dc.type Journal. Article
dspace.entity.type
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