کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4422242 1308537 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phytotoxicity and accumulation of anthracene applied to the foliage and sandy substrate in lettuce and radish plants
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Phytotoxicity and accumulation of anthracene applied to the foliage and sandy substrate in lettuce and radish plants
چکیده انگلیسی

The effects of anthracene (ANT) on the growth of two species of vegetable plants (Lactuca sativa L. and Raphanus sativus L.), which play an important role in the human diet, were studied. ANT was applied to the leaves of these plants by foliar deposition, in aerosol form, and to the sandy substrate in which the plants were grown in a greenhouse. It was found that ANT affected plant biomass, especially root biomass, in the case of both foliar and soil application. Under conditions of induced chemical stress, the dry matter of aboveground parts and roots was lower than that in control plants. The rate of photosynthesis decreased by about 20% in both plant species following foliar ANT application. A lower rate of transpiration was also observed in lettuce plants. After the foliar application of ANT, small quantities of the compound were found in the leaves only (0.06–0.18% of the total dose). ANT translocation to other parts of the plants was not observed. This compound underwent rapid chemical changes on the leaf surface under greenhouse conditions. After the application of ANT to a sandy substrate, this compound was detected in the roots and aboveground parts of plants, which indicates that it was transported throughout the plant. In a sandy substrate, the process of ANT decomposition was much slower—60–70% of the administered dose was measured in the soil after the completion of the experiment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 66, Issue 3, March 2007, Pages 369–377
نویسندگان
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