Nickel Toxicity: Effects on Growth and Metabolism of Maize

Baccouch, S. and Chaoui, A. and EI Ferjani, E. (1998) Nickel Toxicity: Effects on Growth and Metabolism of Maize. Journal of Plant Nutrition, 21 (3). pp. 577-588.

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Effects of graded concentrations of nickel on maize (Zea mays L.) growth and certain metabolic parameters were studied. Under nickel (Ni) stress conditions, leaves become chlorotic at low concentrations and necrotic at, relatively, high ones. 'Concerning its effect on plant growth, nickel reduces dry matter production, more significantly in root system which accumulates large amounts ofNi. In leaves, chlorophyll content was severely decreased. Furthermore, this metal induces leaf accumulation of soluble phenolics, starch and reducing sugars. The accumulation of carbohydrates in shoots might be, at least in part, the cause of root growth inhibition.

Item Type: Article
Uncontrolled Keywords: The authors thank Mrs. N. Balti and Mr. B. Azib for excellent and skillful technical help.
Author Affiliation: Laboratoire de Biologie et Physiologie Cellulaires, Faculte des Sciences de Eizerte(Zarzouna)
Subjects: Plant Protection
Divisions: Maize
Depositing User: Mr Siva Shankar
Date Deposited: 14 Mar 2012 08:17
Last Modified: 14 Mar 2012 08:17

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