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Parker, David R.; Feist, Laura J.; Varvel, Tracey W; Thomason, David N.; Zhang, Yiqiang

doi:10.1023/a:1022545629940

Cited by 55 publications

(7 citation statements)

References 19 publications

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“…Plants may transform some toxic contaminants to environmentally harmless volatile species, which may be dispersed away from polluted areas [2]. Such detoxification processes have been used for the elimination of pesticides or polycyclic aromatic hydrocarbons (PAHs) from soils, and recently, successful results have been obtained for removing selenium from soils [3,4] and hydroponic media [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Chromatographic speciation of anionic and neutral selenium compounds in Se-accumulating Brassica juncea (Indian mustard) and in selenized yeast

Kahakachchi

Boakye

Uden

et al. 2004

Journal of Chromatography A

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Selenium-accumulating plants such as Brassica juncea (Indian mustard) concentrate the element in plant shoots and roots. Such behavior may provide a cost-effective technology to clean up contaminated soils and waters that pose major environmental and human health problems (phytoremediation). Such ability to transform selenium into bioactive compounds has important implications for human nutrition and health. Element selective characterization of B. juncea grown in the presence of inorganic selenium under hydroponic conditions provides valuable information to better understand selenium metabolism in plants. The present work determines both previously observed organoselenium species such as selenomethionine and Se-methylselenocysteine and for the first time detects the newly characterized S-(methylseleno)cysteine in plant shoots and roots when grown in the presence of selenate or selenite as the only selenium source. A key feature of this study is the complementary role of selenium and sulfur specific chromatographic detection by HPLC with interfaced inductively coupled plasma mass spectrometry (ICP-MS) detection and by derivatization GC with interfaced atomic spectral emission. HPLC-ICP-MS limits of detection for such species were in the range 5-50 ng Se mL −1 in the injected extracts. Speciation profiles are compared with those of selenium-enriched yeast by both HPLC-ICP-MS and GC-AED.

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Section: Introductionmentioning

confidence: 99%

Chromatographic speciation of anionic and neutral selenium compounds in Se-accumulating Brassica juncea (Indian mustard) and in selenized yeast

Kahakachchi

Boakye

Uden

et al. 2004

Journal of Chromatography A

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“…Selenium chemically resembles sulfur(S), hence taken up inside the plants via S transporters located in root plasma membrane [49]. Many species of plant have been identified as Se hyper accumulators which have the capability to accumulate high concentrations of Se such as Stanleya pinnata [50]. Selenium uptake differs from species to species, soil type, soil concentrations and form of Se supplied [51].…”

Section: Selenium Uptake and Translocationmentioning

confidence: 99%

Appraisal of Functions and Role of Selenium in Heavy Metal Stress Adaptation in Plants

Asgher¹,

Rehaman²,

Islam³

et al. 2023

Preprint

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Heavy metals (HMs) contamination is one of the main among abiotic factors affecting crop productivity and also threatens human health via consuming metal contaminated crops as a food source. Over the past few years, HMs have drawn a lot of attention due to their increased use for commercial purposes and their harmful effects on plants and other life forms, thus threatening human survival. However, in recent years, several methods have been adopted to combat the harsh effects of HMs. After phytohormones, use of mineral nutrients such as selenium (Se) in the prevention of HM stress has been explored by the researchers more recently. Selenium is an important micronutrient widely known for its antioxidant properties in both plants and animals. Exogenous Se inhibits metal uptake and its translocation and also improves the antioxidant system, thus imparts resistance to HM toxicity in plants. Moreover, Se also regulates the production of various osmolytes in cells that helps in developing cell osmolarity. Selenium also induces the production of different types of secondary metabolites (SMs) that are also involved in plant's secondary defense mechanisms to different stresses. Uptake of mineral nutrients is a vital process for plant growth and development, which is also positively correlated with Se under metalloid toxicity. However, in order to understand the exact mechanism of Se in HM tolerance, different metabolic processes stimulated by Se and their pathways need to be explored. Hence, this review focuses on the role of Se on nutritional status, antioxidants metabolism, interaction with phytohormones and its role in the regulation of various genes involved in Se induced HM tolerance. Thus, this study will help researchers in the future for the improvement of HM tolerance via Se application in plants.

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“…Selenium chemically resembles sulfur(S), hence taken up inside the plants via S transporters located in the root plasma membrane [53]. Many species of plants have been identified as Se hyperaccumulators which can accumulate high concentrations of Se, such as Stanleya pinnata [54]. Selenium uptake differs from species to species, soil type, soil concentrations, and form of Se supplied [55].…”

Section: Selenium Uptake and Translocationmentioning

confidence: 99%

Appraisal of Functions and Role of Selenium in Heavy Metal Stress Adaptation in Plants

et al. 2023

View full text Add to dashboard Cite

Heavy metals (HMs) contamination is one of the main abiotic factors affecting crop productivity and also threatens human health via consuming metal-contaminated crops as a food source. Over the past few years, HMs have drawn a lot of attention due to their increased use for commercial purposes and their harmful effects on plants and other life forms, thus threatening human survival. However, several methods have been adopted in recent years to combat the harsh effects of HMs. After phytohormones, the use of mineral nutrients such as selenium (Se) in the prevention of HM stress has been explored by researchers more recently. Selenium is an important micronutrient widely known for its antioxidant properties in plants and animals. Exogenous Se inhibits metal uptake and translocation and improves the antioxidant system, thus imparting resistance to HM toxicity in plants. Moreover, Se also regulates the production of various osmolytes in cells, which helps develop cell osmolarity. Selenium also produces different secondary metabolites in plants’ defense mechanisms against different stresses. The uptake of mineral nutrients is a vital process for plant growth and development, which is also positively correlated with Se under metalloid toxicity. However, to understand the exact mechanism of Se in HM tolerance, different metabolic processes stimulated by Se and their pathways need to be explored. Hence, this review focuses on the role of Se on nutritional status, antioxidant metabolism, interaction with phytohormones and its role in the regulation of various genes involved in Se-induced HM tolerance. Thus, this study will help researchers in the future for the improvement of HM tolerance via Se application in plants.

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Untitled

Cited by 55 publications

References 19 publications

Chromatographic speciation of anionic and neutral selenium compounds in Se-accumulating Brassica juncea (Indian mustard) and in selenized yeast

Chromatographic speciation of anionic and neutral selenium compounds in Se-accumulating Brassica juncea (Indian mustard) and in selenized yeast

Appraisal of Functions and Role of Selenium in Heavy Metal Stress Adaptation in Plants

Appraisal of Functions and Role of Selenium in Heavy Metal Stress Adaptation in Plants

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