کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9455525 | 1308848 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chromium toxicity in plants
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کلمات کلیدی
Cr(III) - Cr (III)Translocation - انتقالOxidative stress - تنش اکسیداتیوUptake - جذبBioremediation - زیست پالاییToxicity - سمی بودنPhotosynthesis - فتوسنتزHeavy metals - فلزات سنگینCrops - محصولات زراعیCr(VI) - کروم (VI)Chromium - کروم، فلزی سخت و خاکستری رنگ Reactive oxygen species - گونههای فعال اکسیژنPhytoremediation - گیاه پالاییPlants - گیاهان
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chromium toxicity in plants Chromium toxicity in plants](/preview/png/9455525.png)
چکیده انگلیسی
Due to its wide industrial use, chromium is considered a serious environmental pollutant. Contamination of soil and water by chromium (Cr) is of recent concern. Toxicity of Cr to plants depends on its valence state: Cr(VI) is highly toxic and mobile whereas Cr(III) is less toxic. Since plants lack a specific transport system for Cr, it is taken up by carriers of essential ions such as sulfate or iron. Toxic effects of Cr on plant growth and development include alterations in the germination process as well as in the growth of roots, stems and leaves, which may affect total dry matter production and yield. Cr also causes deleterious effects on plant physiological processes such as photosynthesis, water relations and mineral nutrition. Metabolic alterations by Cr exposure have also been described in plants either by a direct effect on enzymes or other metabolites or by its ability to generate reactive oxygen species which may cause oxidative stress. The potential of plants with the capacity to accumulate or to stabilize Cr compounds for bioremediation of Cr contamination has gained interest in recent years.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environment International - Volume 31, Issue 5, July 2005, Pages 739-753
Journal: Environment International - Volume 31, Issue 5, July 2005, Pages 739-753
نویسندگان
Arun K. Shanker, Carlos Cervantes, Herminia Loza-Tavera, S. Avudainayagam,