کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5763181 | 1625146 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tolerance of an energy crop (Jatropha curcas L.) to zinc and lead assessed by chlorophyll fluorescence and enzyme activity
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Tolerance of an energy crop (Jatropha curcas L.) to zinc and lead assessed by chlorophyll fluorescence and enzyme activity Tolerance of an energy crop (Jatropha curcas L.) to zinc and lead assessed by chlorophyll fluorescence and enzyme activity](/preview/png/5763181.png)
چکیده انگلیسی
Zinc and lead toxicity is a serious constraint to the use and revegetation of contaminated soils. The use of tolerant species for remediation of these areas, combined with low-risk products for humans, can be a viable alternative for the management of contaminated soils. In this sense, the present study evaluated Jatropha curcas tolerance to Zn and Pb aiming at the revegetation of contaminated areas. The effect of trace elements on the biomass, absorption and distribution of elements, photosynthetic apparatus and antioxidant enzymes activity were studied. The measurement of the chlorophyll fluorescence detected early Zn and Pb toxicity, showing potential for monitoring areas contaminated by these metals. Jatropha plants were relatively tolerant to the toxicity of the evaluated trace elements. Tolerance was expressed mainly by restricting the element transport to the aerial parts, and by increasing or sustaining antioxidant enzymes activity. Due to this tolerance, Jatropha plants can be useful for revegetation of areas contaminated by these metals. Because it is an oil seed crop species, Jatropha production in these marginal areas may represent an economical alternative by combining phytostabilization with bioenergy production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: South African Journal of Botany - Volume 112, September 2017, Pages 275-282
Journal: South African Journal of Botany - Volume 112, September 2017, Pages 275-282
نویسندگان
M.C. Marques, C.W.A. Nascimento, A.J. da Silva, A. da Silva Gouveia-Neto,