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An Overview of Selenium Uptake, Metabolism, and Toxicity in Plants

Open access
Gupta, Meetu, Gupta, Shikha·2017·Frontiers in Plant Science

Abstract

Selenium (Se) is an essential micronutrient for humans and animals, but lead to toxicity when taken in excessive amounts. Plants are the main source of dietary Se, but essentiality of Se for plants is still controversial. However, Se at low doses protects the plants from variety of abiotic stresses such as cold, drought, desiccation, and metal stress. In animals, Se acts as an antioxidant and helps in reproduction, immune responses, thyroid hormone metabolism. Selenium is chemically similar to sulfur, hence taken up inside the plants via sulfur transporters present inside root plasma membrane, metabolized via sulfur assimilatory pathway, and volatilized into atmosphere. Selenium induced oxidative stress, distorted protein structure and function, are the main causes of Se toxicity in plants at high doses. Plants can play vital role in overcoming Se deficiency and Se toxicity in different regions of the world, hence, detailed mechanism of Se metabolism inside the plants is necessary for designing effective Se phytoremediation and biofortification strategies.

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Metadata

Authors
Gupta, M., & Gupta, S.
Venue
Frontiers in Plant Science
Published
2017-01-11
Volume
7
Pages
2074-2074
ISSN
1664-462X (ISSN-L)
OpenAlex
W2570657781
Cited by
905
References
14
FWCI
37.81
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: An Overview of Selenium Uptake, Metabolism, and Toxicity in Plants. https://app.cochat.ai/papers/10.3389/fpls.2016.02074
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Gupta, M., & Gupta, S. (2017). An Overview of Selenium Uptake, Metabolism, and Toxicity in Plants. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2016.02074

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