Approaches for Amelioration of Selenium Deficiencies/toxicities in Crop Plants

Author: G.S. Sanghera*, Prabhjot S. Sanghera and Rajan Bhatt

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Abstract

Selenium (Se) is a widely dispersed trace element that has both positive and harmful effects on people, animals, and plants. The structure of the parental material and the activities that follow soil formation affect the availability of Se in the soil. The amount of Se in the environment is influenced by human activities. Despite the fact that plants are the primary source of selenium in animal and human diets, the significance of selenium in plants is still controversial. Under both ideal and unfavourable climatic conditions, a low Se concentration can be helpful to plant growth, development, and ecophysiology. However, excess Se on the contrary, has harmful consequences, especially in Se sensitive plants, since it alters protein structure and function and causes oxidative/nitrosative stress, which affects numerous metabolic processes. Se hyper accumulators, on the other hand, absorb and tolerate extremely high levels of Se and might be utilized to remediate, i.e., remove, transfer, s

Keywords

Selenium, phytoremedation, toxicity, metabolism, oxidative stress.