Relationship between Soil Nitrate Content and Activities of NADH: and NAD(P)H:Nitrate Reductases in Indian Mustard |
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Authors: | A. Ahmad I. Khan Y.P. Abrol M.Z. Abdin |
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Affiliation: | (1) Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi-, 110 012, India;(2) Centre for Biotechnology, Hamdard University, New Delhi-, 110 062, India |
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Abstract: | ![]() The pattern of NADH- and NAD(P)H-specific nitrate reductase (NRs) activities in Indian mustard (Brassica juncea L. Czern. and Coss.) was monitored throughout growth stages. NAD(P)H:NR (EC 1.6.6.2) activity was maximum at early stages of growth (30 days after sowing, DAS), then declined gradually reaching to almost zero at 90 DAS. Contrary to this, NADH:NR (EC 1.6.6.1) activity was low at 30 DAS, then gradually increased till 90 DAS and thereafter, it became constant. The decrease in NAD(P)H:NR activity and increase in the NADH:NR activity were associated with the seasonal decrease in nitrate content in the soil. This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | Brassica juncea L. growth stages |
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