title: Comparison of the metabolism of inorganic and organic selenium species between two selenium accumulator plants, garlic and Indian mustard.
abstract: The metabolism of selenomethionine (SeMet) in two major selenium (Se) accumulator plants, garlic and Indian mustard, was compared to that of stable isotope labeled selenate. Indian mustard more efficiently transported Se from roots to leaves than garlic. In addition, Indian mustard accumulated larger amounts of Se than garlic. γ-Glutamyl-Se-methylselenocysteine (γ-GluMeSeCys) and Se-methylselenocysteine (MeSeCys) were the common metabolites of selenate and SeMet in garlic and Indian mustard. Indian mustard had a specific metabolic pathway to selenohomolanthionine (SeHLan) from both inorganic and organic Se species. SeMet was a more effective fertilizer for cultivating Se-enriched plants than selenate in terms of the production of selenoamino acids.
authors.affiliation: Laboratory of Toxicology and Environmental Health, Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba 260-8675, Japan. ogra@chiba-u.jp.
authors.forename: Yasumitsu
authors.identifier: 0000-0002-8268-1828
authors.initials: Y
authors.lastname: Ogra
authors.affiliation: Laboratory of Chemical Toxicology and Environmental Health, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
authors.forename: Yurie
authors.initials: Y
authors.lastname: Ogihara
authors.affiliation: Laboratory of Chemical Toxicology and Environmental Health, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan.
authors.forename: Yasumi
authors.initials: Y
authors.lastname: Anan
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005737:Garlic / Q000254:growth & development / Q000378:metabolism*; D007287:Inorganic Chemicals / Q000737:chemistry*; D013058:Mass Spectrometry; D009149:Mustard Plant / Q000254:growth & development / Q000378:metabolism*; D009930:Organic Chemicals / Q000737:chemistry*; D016566:Organoselenium Compounds / Q000378:metabolism*; D012643:Selenium / Q000378:metabolism*
chemical_list: D007287:Inorganic Chemicals; D009930:Organic Chemicals; D016566:Organoselenium Compounds; D012643:Selenium