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Testing Nerium Oleander as a Biomonitor for Surfactant Polluted Marine Aerosol | ||
| International Journal of Environmental Research | ||
| مقاله 1، دوره 4، شماره 1، فروردین 2010، صفحه 1-10 اصل مقاله (634.85 K) | ||
| شناسه دیجیتال (DOI): 10.22059/ijer.2010.150 | ||
| چکیده | ||
| Oleander was tested as biomonitoring plant for surfactant polluted marine aerosol. Potted plants in the greenhouse were sprayed once a week for 5 weeks with seawater containing sodium dioctyl sulfosuccinate (SDS) at the following concentrations: 5, 10, 15, 30, 60, 120, 250, 500 mg/L. A significant correlation was found between SDS concentration in the spray and surfactant deposit on the leaves at the end of the 5 weeks. At that time and two months later, we assessed: leaf visible injury, foliar chloride content, damage to stomatal crypts, water potential, net photosynthesis and stomatal conductance. Relative to controls (not sprayed and sprayed either with deionized water or with seawater without surfactants), all the parameters were affected (P<0.05) by the presence of surfactant. Furthermore they were correlated (P<0.05) with the concentration of surfactant. Visibleinjury occurred after treatments containing concentrations of surfactant exceeding 30 mg/L | ||
| کلیدواژه‌ها | ||
| Sea pollutants؛ Detergents؛ Bioindicator؛ Physiopathology؛ stomata | ||
| موضوعات | ||
| کشاورزی و منابع طبیعی و محیط زیست | ||
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آمار تعداد مشاهده مقاله: 3,147 تعداد دریافت فایل اصل مقاله: 2,364 |
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