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Lijuan Zhao Jose R. Peralta-Vide Bo Peng Susmita Bandyopadhyay Baltazar Corral-Diaz Pedro Osuna-Avil Milka O. Montes Arturo A. Keller Jorge L. Gardea-Torresdey 《环境科学学报(英文版)》2014,26(2):382-389
Alginates are naturally occurring components of organic matter in natural soil whose effects on nanoparticle (NP) toxicity to plants is not well understood. In the present study, corn plants were grown for one month in soil spiked with 400 mg/kg CeO2 NPs with various alginate concentrations. After one month of growth in the NPs impacted soil, plants were harvested and analyzed for Ce and mineral element concentrations. Chlorophyll concentration and heat shock protein 70, used as biomarkers for oxidative stress, were also evaluated. Results showed that, compared to CeO2 NPs treatment, alginate at 10, 50, and 100 mg/kg increased Ce concentration in roots by approximately 46%, 38%, and 29% and by 115%, 45%, and 56% in shoots, respectively. CeO 2 NPs without alginate increased Mn accumulation in roots by 34% compared to control. CeO2 NPs with low and medium alginate increased Mn by ca. 92% respect to NPs without alginate and by ca. 155% respect to control. CeO2 NPs without/with alginate significantly increased accumulation of Fe and Al in roots. In addition, alginate at 50 mg/kg increased Zn accumulation in roots by 52% compared to control. In shoots, K increased at all NP treatments but the accumulation of other elements was not affected. Alginate enlarged the impact of CeO2 NPs to corn plants by reducing chlorophyll a content and triggering overexpression of heat shock protein 70. 相似文献
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Environment, Development and Sustainability - 相似文献
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Bandyopadhyay Sneha Maiti Subodh Kumar 《Environmental science and pollution research international》2022,29(59):88383-88409
Environmental Science and Pollution Research - For millennium, mining sector is a source not only of mineral extraction for industrialization, economic expansion, and urban sprawling, but also of... 相似文献
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Sneha Yadav Yashas Shivamurthy Ravindra Thinley Tenzin Prabagar Jijoe Samuel Puttaiah Shivaraju Harikaranahalli 《Environmental science and pollution research international》2022,29(45):67969-67980
Environmental Science and Pollution Research - Antibiotics in water system pose a human health risk due to the rise of antibacterial activity in the environmental web. Advanced oxidation processes... 相似文献