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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 10, No. 5, 2013, pp. 1129-1140
Bioline Code: st13099
Full paper language: English
Document type: Literature Review
Document available free of charge

International Journal of Environment Science and Technology, Vol. 10, No. 5, 2013, pp. 1129-1140

 en Occurrence, physiological responses and toxicity of nickel in plants
Sreekanth, T.V.M.; Nagajyothi, P.C.; Lee, K.D. & Prasad, T.N.V.K.V.

Abstract

The focus of the review is on the specific aspects of nickel's effects on growth, morphology, photosynthesis, mineral nutrition and enzyme activity of plants. The mobility of nickel in the environment and the consequent contamination in soil and water is of great concern. Also, the detrimental effects of excessive nickel on plant growth have been well known for many years. Toxic effects of nickel on plants include alterations in the germination process as well as in the growth of roots, stems and leaves. Total dry matter production and yield was significantly affected by nickel and also causes deleterious effects on plant physiological processes, such as photosynthesis, water relations and mineral nutrition. Nickel strongly influences metabolic reactions in plants and has the ability to generate reactive oxygen species which may cause oxidative stress. More recent evidence indicates that nickel is required in small amounts for normal plant growth and development. Hence, with the increasing level of nickel pollution in the environment, it is essential to understand the functional roles and toxic effects of nickel in plants.

Keywords
Higher plants; Micronutrient; Mechanisms of activity; Nickel; Oxidative stress

 
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