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

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Biologia Plantarum

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.

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Authors and Affiliations

  1. Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi-, 110 012, India

    A. Ahmad & Y.P. Abrol

  2. Centre for Biotechnology, Hamdard University, New Delhi-, 110 062, India

    I. Khan & M.Z. Abdin

Authors
  1. A. Ahmad
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  2. I. Khan
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  3. Y.P. Abrol
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  4. M.Z. Abdin
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Ahmad, A., Khan, I., Abrol, Y. et al. Relationship between Soil Nitrate Content and Activities of NADH: and NAD(P)H:Nitrate Reductases in Indian Mustard. Biologia Plantarum 46, 295–296 (2003). https://doi.org/10.1023/A:1022823315768

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  • DOI: https://doi.org/10.1023/A:1022823315768

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