Indian Streams Research Journal

Volume : VII, Issue : V, June - 2017

NITRATE REDUCTASE ACTIVITY IN BARLEY AS INFLUENCED BY LIGHT/DARK/LIGHT PERIODS

Salwa A. Abdel-Latif, Hanan M. Abou-Zeid

DOI : 10.9780/22307850, By : Laxmi Book Publication

Abstract :

Barley (Hordeum vulgare L. cv. Giza 123) plants has NADH-specific and NAD (P)H-bispecific nitrate reductase isozymes. We examine the activities of both isozymes after the induction with nitrate in leaves and roots of hydroponically N-depleted grown seedlings in buffer containing either 5mM Mg+2 or 5mM EDTA.

Keywords :

• Barley;
• Activation state.
• Nitrate reductase isozymes;
• Light/dark;
• Total reduced nitrogen;

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References :

1. Abdel-Latif, S., Kawachi, T., Fujikake, H., Ohtake, N., Ohyama, T., Sueyoshi, K. 2004. Contribution of shoots and roots to in vivo nitrate reduction in NADII-specific nitrate reductase-deficient mutant seedlings of barley (Hordeum vulgare L.). Soil Sci. Plant Nutr, 50: 527-535.
2. Abdel-Latif, S., Abou-Zeid, H., 2014. Activation and Deactivation of Nitrate Reductase Isozymes in the Leaves of Barley Plants under Light and Dark Conditions. Life Science Journal, 11, (9).

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