Sources of reducing equivalents for nitrate reductase in Pisum arvense roots

Abstract

The sources of the nitrate reductase (E.C 1.6.6.1) reducing equivalents were searched for in roots of Pisum arvense by measuring in vivo and in vitro nitrate reductase activity. It was found that the NADH2 utilised in the process of nitrate reduction in the roots of P. arvense may be formed by glycolysis as well as in processes of organic acids oxidation such as 2-oxoglutaric, succinic and malic acids.

Keywords

• nitrate reductase
• reducing equivalents
• Pisum arvense
• roots