author={Norman Terry and Adel M. Zayed and M. P. de Souza and Alice S. Tarun},
  journal={Annual review of plant physiology and plant molecular biology},
  • N. Terry, A. Zayed, A. Tarun
  • Published 28 November 2003
  • Environmental Science
  • Annual review of plant physiology and plant molecular biology
Plants vary considerably in their physiological response to selenium (Se). Some plant species growing on seleniferous soils are Se tolerant and accumulate very high concentrations of Se (Se accumulators), but most plants are Se nonaccumulators and are Se-sensitive. This review summarizes knowledge of the physiology and biochemistry of both types of plants, particularly with regard to Se uptake and transport, biochemical pathways of assimilation, volatilization and incorporation into proteins… 

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  • Environmental Science
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The distribution and speciation of selenium in plants and the effect of seenium alone and in combination with some other environmental parameters is discussed.



Selenium in Plants: Uptake, Functions, and Environmental Toxicity

Biogeochemical cycling of Se involves significant volatilization of methylated selenides such as dimethyl selenide to the atmosphere from higher plants as well as freshwater algae, but Se exchange between oceans and the atmosphere appears to proceed as net flux to the oceans.

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The physiological differentiation within the genus Astragalus (one of the best known accumulators) is discussed, and the relationships between sulfur and selenium metabolism are discussed, along with the possible role of selenum as a micronutrient.

Accumulation and volatilization of different chemical species of selenium by plants

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The shoots of primary Se-accumulating plant species can accrue Se to several thousand micrograms per gram of dry weight, even when growing in gypsiferous soils, yet no detailed studies of the mutual

On the mechanism of selenium tolerance in selenium-accumulating plants. Purification and characterization of a specific selenocysteine methyltransferase from cultured cells of Astragalus bisculatus.

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Exclusion of selenium from proteins of selenium-tolerant astragalus species.

It is established that the ability to tolerate and to circumvent the toxic effects of selenium, characteristic of the accumulator species of Astragalus, is associated with a reduced incorporation of this element into protein.

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