Biologia plantarum 46:295-296, 2003 | DOI: 10.1023/A:1022823315768

Relationship between Soil Nitrate Content and Activities of NADH: and NAD(P)H:Nitrate Reductases in Indian Mustard

A. Ahmad1, I. Khan2, Y.P. Abrol1, M.Z. Abdin2
1 Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi-, India
2 Centre for Biotechnology, Hamdard University, New Delhi-, India

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.

Keywords: Brassica juncea L.; growth stages
Subjects: Brassica juncea; Indian mustard, nitrate reductases; NADH:nitrate reductase, NAD(P)H:nitrate reductase; nitrate content in soil, nitrate reductases; nitrate reductase

Prepublished online: March 1, 2003; Published: September 1, 2003Show citation

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Ahmad, A., Khan, I., Abrol, Y.P., & Abdin, M.Z. (2003). Relationship between Soil Nitrate Content and Activities of NADH: and NAD(P)H:Nitrate Reductases in Indian Mustard. Biologia plantarum, 46(2), 295-296. doi: 10.1023/A:1022823315768.
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