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Exploring the new dimensions of selenium research to understand the underlying mechanism of its uptake, translocation, and accumulation
Author(s) -
Raina Meenakshi,
Sharma Akanksha,
Nazir Muslima,
Kumari Punam,
Rustagi Anjana,
Hami Ammarah,
Bhau Brijmohan Singh,
Zargar Sajad Majeed,
Kumar Deepak
Publication year - 2021
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/ppl.13275
Subject(s) - biofortification , phytoremediation , selenium , selenate , biology , assimilation (phonology) , mechanism (biology) , chromosomal translocation , microbiology and biotechnology , agronomy , ecology , micronutrient , chemistry , soil water , biochemistry , gene , linguistics , philosophy , organic chemistry , epistemology
Selenium (Se) is a vital mineral for both plants and animals. It is widely distributed on the earth's crust and is taken up by the plants as selenite or selenate. Plants substantially vary in their physiological response to Se. The amount of Se in edible plants is genetically controlled. Its availability can be determined by measuring its phytoavailability in soil. The low concentration of Se in plants can help them in combating stress, whereas higher concentrations can be detrimental to plant health and in most cases it is toxic. Thus, solving the double‐edged sword problem of nutritional Se deficiency and its elevated concentrations in environment requires a better understanding of Se uptake and metabolism in plants. The studies on Se uptake and metabolism can help in genetic biofortification of Se in plants and also assist in phytoremediation. Moreover, Se uptake and transport, especially biochemical pathways of assimilation and incorporation into proteins, offers striking mechanisms of toxicity and tolerance. These developments have led to a revival of Se research in higher plants with significant break throughs being made in the previous years. This review explores the new dimensions of Se research with major emphasis on key research events related to Se undertaken in last few years. Further, we also discussed future possibilities in Se research for crop improvement.