کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6317609 | 1619188 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Perchlorate content of plant foliage reflects a wide range of species-dependent accumulation but not ozone-induced biosynthesis
ترجمه فارسی عنوان
محتوای پرچلارات در شاخ و برگ گیاهان، طیف وسیعی از انباشت وابسته به گونه ها را نشان می دهد، اما بیوسنتز ناشی از ازن
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Perchlorate (ClO4â) interferes with uptake of iodide in humans. Emission inventories do not explain observed distributions. Ozone (O3) is implicated in the natural origin of ClO4â, and has increased since pre-industrial times. O3 produces ClO4âin vitro from Clâ, and plant tissues contain Clâ and redox reactions. We hypothesize that O3 exposure may induce plant synthesis of ClO4â. We exposed contrasting crop species to environmentally relevant O3 concentrations. In the absence of O3 exposure, species exhibited a large range of ClO4â accumulation but there was no relationship between leaf ClO4â and O3, whether expressed as exposure or cumulative flux (dose). Older, senescing leaves accumulated more ClO4â than younger leaves. O3 exposed vegetation is not a source of environmental ClO4â. There was evidence of enhanced ClO4â content in the soil surface at the highest O3 exposure, which could be a significant contributor to environmental ClO4â.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 184, January 2014, Pages 690-696
Journal: Environmental Pollution - Volume 184, January 2014, Pages 690-696
نویسندگان
D.A. Grantz, K.O. Burkey, W.A. Jackson, H.-B. Vu, M.T. McGrath, G. Harvey,