کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4555031 | 1329241 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Silicon mitigates cadmium inhibitory effects in young maize plants
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Inhibitory effects of Cd on plant growth were observed. Silicon treatment in the absence of Cd had positive effects on most of observed growth parameters compared with the control. Moreover, Si in the Cd + Si treatment improved all growth parameters compared with the cadmium treatment. Silicon increased the cell-wall extensibility both in Si and Cd + Si treatments when compared with the control. Alleviation of the Cd-inhibitory effect on maize plants by Si was not due to exclusion of Cd from the plant; in contrast, Cd concentration in below- and above-ground plant parts and the total amount of Cd per plant were significantly higher in the Cd + Si plants than in the Cd treatment. The increased Cd content in Cd + Si plants was correlated with the development of the endodermis; during the second stage of endodermal development, suberin lamellae were formed at a greater distance from the root apex in the Cd + Si than in the Cd treatment. Silicon itself did not influence the development of suberin lamellae in the maize roots compared with the control.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental and Experimental Botany - Volume 67, Issue 1, November 2009, Pages 52-58
Journal: Environmental and Experimental Botany - Volume 67, Issue 1, November 2009, Pages 52-58
نویسندگان
Marek VaculÃk, Alexander Lux, Miroslava Luxová, Eiichi Tanimoto, Irene Lichtscheidl,