کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5559659 | 1561692 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Toxic effect of cadmium adsorbed by different sizes of nano-hydroxyapatite on the growth of rice seedlings
ترجمه فارسی عنوان
اثر سمی کادمیوم جذب شده توسط اندازه های مختلف نانو هیدروکسی آپاتیت بر رشد نهال های برنج
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
چکیده انگلیسی
Information regarding the toxic effects of cadmium (Cd) adsorbed by nano-hydroxyapatite (NHAP-Cd) on the growth of crop plants remain limited. We investigated the mechanism of NHAP-Cd (diameters, 20 and 40 nm; NHAP20-Cd and NHAP40-Cd, respectively) phytotoxicity. Rice seedlings treated with Cd and NHAP20-Cd showed more severe growth retardation compared to those treated with NHAP40-Cd, for the same Cd concentration. Transmission electron microscopy revealed NHAP in the seedlings. The nanoparticles entered the rice seedlings with no Cd2+ signals in the NHAP treatments compared to â0.47 pmol cmâ2 sâ1 of Cd2+ fluxes in the Cd treatment. The higher Cd2+ content in the leaves and mesocotyl of NHAP20-Cd-treated rice seedlings suggested that smaller NHAP-Cd can translocate easily to the aboveground parts. Further, NHAP-Cd increased oxidative stress, which was determined as catalase activity changes in this study. Thus, NHAP-Cd particles in the growth medium can be transported to rice seedlings and cause toxicity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Toxicology and Pharmacology - Volume 52, June 2017, Pages 1-7
Journal: Environmental Toxicology and Pharmacology - Volume 52, June 2017, Pages 1-7
نویسندگان
Yifan Huang, Weiwen Qiu, Zhihong Yu, Zhengguo Song,