Toxicity and bio-effects of CuO nanoparticles on transgenic Ipt-cotton

文献类型: 外文期刊

第一作者: Nhan Le Van

作者: Nhan Le Van;Rui, Yukui;Shang, Jianying;Liu, Shutong;Liu, Liming;Nhan Le Van;Trung Nguyen Quang;Rui, Yukui;Cao, Weidong

作者机构:

关键词: CuO nanoparticle;Ipt-cotton;iPA;nutrient content;phytohormone;phytotoxicity

期刊名称:JOURNAL OF PLANT INTERACTIONS ( 影响因子:4.208; 五年影响因子:4.344 )

ISSN: 1742-9145

年卷期: 2016 年 11 卷 1 期

页码:

收录情况: SCI

摘要: This study investigated the effects of copper oxide nanoparticles (CuO NPs) on the growth and development of transgenic cotton harboring the Ipt gene, which encodes isopentenyl Itransferase (Ipt). Three concentrations of CuO NPs were evaluated: 10, 200, and 1000 mg.L-1, each with three replicates. The height and the root length were 26.91% and 42.80% decreased after 10-day exposure with 1000 mg"L1 CuO NPs, respectively. In addition, less abundant on root hairs and lower in shoot biomass of ipt-cotton when compared with the control group. The growth of Ipt cotton' was not affected by 10 mg.L-1 CuO NPs, but a high concentration of CuO NPs promoted the11 absorption of Fe and Na into roots, and inhibited the production of phytahormones in Ipt-cotton. The CuO NPs increased the concentration of iPA in shoots, which can delay senescence. The extent of the increase in iPA in response to CuO NPs should be relative to the amount of Ipt immobilized onto the NPs in the plant tissue. To our knowledge, this is the first study to evaluate the phytotoxicity of CuO NPs to Ipt transgenic cotton. These results establish a baseline for further research on the effects of nanoparticles on transgenic crops harboring the Ipt gene.

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