کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1415137 985925 2011 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graphene phytotoxicity in the seedling stage of cabbage, tomato, red spinach, and lettuce
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Graphene phytotoxicity in the seedling stage of cabbage, tomato, red spinach, and lettuce
چکیده انگلیسی

The effects of graphene on root and shoot growth, biomass, shape, cell death, and reactive oxygen species (ROS) of cabbage, tomato, red spinach, and lettuce, were investigated using a concentration range from 500 to 2000 mg/L. The results of the combined morphological and physiological analyses indicate that after 20 days of exposure under our experimental conditions, graphene significantly inhibited plant growth and biomass compared to a control. The number and size of leaves of the graphene-treated plants were reduced in a dose-dependent manner. Significant effects also were detected showing a concentration-dependent increase in ROS and cell death as well as visible symptoms of necrotic lesions, indicating graphene-induced adverse effects on cabbage, tomato, and red spinach mediated by oxidative stress necrosis. Little or no significant toxic effect was observed with lettuce seedlings under the same conditions. The potential effect of graphene largely depends on dose, exposure time, and plant species and deserves further attention.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 49, Issue 12, October 2011, Pages 3907–3919
نویسندگان
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