کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4555569 1628110 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cadmium accumulation capacities of Arabis alpina under environmental conditions
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
Cadmium accumulation capacities of Arabis alpina under environmental conditions
چکیده انگلیسی

Arabis alpina is a perennial Brassicacea closely related to Arabidopsis thaliana. Leaves from plants were collected in bulk from three different places in Switzerland (two in the Jura Mountains, Chasseral and Pichoux and one in the Alps, Schilthorn). The population “sensus lato” growing in Chasseral (Jura) showed more cadmium (Cd) accumulation in leaves than the two others. Interestingly, the soil of Chasseral contains more total and NaNO3 extractable Cd, indicating that Cd accumulation in A. alpina is mainly related to the soil Cd content. These observations were only partly confirmed by physico-chemical parameters of the soils. Global RAPD analyses showed that alpine and Jura plants exhibit genetic divergence which likely not influence plant cadmium uptake as judged by in vitro culture experiments. Interestingly, MRP3 and Nramp4 were differentially regulated in the three population tested. As shown after hydroponic culture in the presence of 10 μM CdCl2, A. alpina is not a Cd hyper-tolerant plant, unlike Thlaspi caerulescens ecotypes or A. halleri, but rather a Cd bio-indicator plant.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental and Experimental Botany - Volume 57, Issues 1–2, August 2006, Pages 80–88
نویسندگان
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