کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9454737 | 1308551 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bioaccumulation and harmful effects of microcystin-LR in the aquatic plants Lemna minor and Wolffia arrhiza and the filamentous alga Chladophora fracta
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Although the toxic effects of cyanotoxins on animals have been examined extensively, little research has focused on their effects on higher plants and macroalgae, and the potential for bioaccumulation in the food web through plants. Two aquatic plants, Lemna minor and Wolffia arrhiza, and one filamentous alga, Chladophora fracta, were exposed to the cyanotoxin microcystin-LR. Growth of L. minor (as weight and frond number) and root length were significantly reduced and peroxidase activity was significantly increased after 5 days of exposure to concentrations of 10 and 20 μg mLâ1 microcystin-LR. Growth of W. arrhiza (as frond number) was significantly reduced after 5 days of exposure to 15 μg mLâ1 microcystin-LR. Growth and peroxidase activity of C. fracta were not affected by microcystin-LR at concentrations up to 10 μg mLâ1. L. minor also accumulated microcystin-LR up to a concentration of 0.288±0.009 ng mgâ1 wet wt. plant material over the 5 days of the experiment, equivalent to an accumulation rate of 0.058 ng mgâ1 dayâ1. C. fracta accumulated a microcystin-LR concentration of 0.042±0.015 ng mgâ1 wet wt. plant material over the 5 days of the experiment, equivalent to an accumulation rate of 0.008 ng mgâ1 dayâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 61, Issue 3, July 2005, Pages 345-352
Journal: Ecotoxicology and Environmental Safety - Volume 61, Issue 3, July 2005, Pages 345-352
نویسندگان
Simon M. Mitrovic, Orla Allis, Ambrose Furey, Kevin J. James,