کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4416621 1307791 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The phytotoxic effect of C1/C2-halocarbons and trichloroacetic acid on the steppe plant Artemisia lerchiana
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
The phytotoxic effect of C1/C2-halocarbons and trichloroacetic acid on the steppe plant Artemisia lerchiana
چکیده انگلیسی

Artemisia lerchiana is a wormwood species of the Central Asian steppe regions, where it completely cover whole areas. For the first time it was possible to show through field experiments that C1/C2 halocarbons (VCHCs), such as chloroform (CHL), tetrachloroethene (PER) and hexachloroethane (HEX), can be taken up by test plants of the species A. lerchiana via the soil/root pathway and metabolised inter alia into trichloroacetic acid (TCA) under semi-aride conditions. At the same time, chlorophyll a fluorescence measurements carried out on the test plants revealed a phytotoxic influence on plant vitality (max. decline in vitality of 52% with application of CHL) and less efficient energy flows in the photosynthesis mechanism of the A. lerchiana test plants. The authors examine possible links between the simultaneous appearance of VCHCs and additional drought stress in the acceleration of desertification processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 65, Issue 6, November 2006, Pages 975–980
نویسندگان
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