Metabolic Interactions between Spinach Leaf Nitrite Reductase and Ferredoxin-NADP Reductase | Zendy

Chris Baysdorfer | Zendy; J. Michael Robinson | Zendy

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Metabolic Interactions between Spinach Leaf Nitrite Reductase and Ferredoxin-NADP Reductase

Author(s) -

Chris Baysdorfer,

J. Michael Robinson

Publication year - 1985

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.77.2.318

Subject(s) - ferredoxin , nitrite , nitrite reductase , reductase , spinach , chemistry , ferredoxin—nadp(+) reductase , substrate (aquarium) , biochemistry , biology , enzyme , nitrate , ecology , organic chemistry

Steady state rates of NADP reduction decline upon commencement of nitrite reduction in reconstituted chloroplast preparations. Similarly, steady state rates of nitrite reduction are lower, but not zero, during concurrent NADP reduction. These results imply that competition for substrate occurs and suggest that nitrite reduction can successfully compete for reduced ferredoxin, even at high rates of NADP reduction.

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