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您的检索式：作者名="LU Yingang"
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| 1 | Effect of Silicon on Growth, Physiology, and Cadmium Translocation of Tobacco (Nicotiana tabacum L.) in Cadmium-Contaminated Soil显示文摘Silicon(Si) offers beneficial effect on plants under cadmium(Cd) stress such as promoting plant growth and increasing resistance to heavy metal toxicity. In this study, a pot experiment was performed to study the role of Si in alleviating Cd toxicity in tobacco(Nicotiana tabacum L.) plants on a yellow soil taken from Guiyang, China. Nine treatments consisting of three concentrations of Cd(0, 1, and 5 mg kg^(-1)) together with three Si levels(0, 1, and 4 g kg^(-1)) were established. Plant growth parameters, Cd concentration,and the malondialdehyde(MDA), chlorophyll, and carotenoid contents were determined 100 d after transplanting of tobacco seedlings.Application of exogenous Si enhanced the growth of tobacco plants under Cd stress. When 5 mg kg^(-1) Cd was added, Si addition at 1 and 4 g kg^(-1) increased root, stem, and leaf biomass by 26.1%–43.3%, 33.7%–43.8%, and 50.8%–69.9%, respectively, compared to Si addition at 0 g kg^(-1). With Si application, the transfer factor of Cd in tobacco from root to shoot under both 1 and 5 mg kg^(-1) Cd treatments decreased by 21%. The MDA contents in the Si-treated tobacco plants declined by 5.5%–17.1% compared to those in the non-Si-treated plants, indicating a higher Cd tolerance. Silicon application also increased the chlorophyll and carotenoid contents by 33.9%–41% and 25.8%–47.3% compared to the Cd only treatments. Therefore, it could be concluded that Si application can alleviate Cd toxicity to tobacco by decreasing Cd partitioning in the shoots and MDA levels and by increasing chlorophyll and carotenoid contents, thereby contributing to lowering the potential health risks of Cd contamination. | LU Yingang MA Jun TENG Ying HE Juny Peter CHRISTIE ZHU Lingjia REN Wenjie ZHANG Manyun Shiping DENG | 2018 | Pedosphere2018，28，4： | 7 |
| 2 | Uptake and Subcellular Distribution of Cd in Tobacco显示文摘In this study,tobacco cultivar Nanjiang No.3 was selected as the experimental material to uptake,accumulation and subcellular distribution of Cd in tobacco.The results showed that Cd uptake in tobacco leaves increased first then declined and increased again;the content generally in descending order of of Cd in various subcellular fractions of tobacco leaves demonstrated a descending order of cytosols>cell walls>mitochondria>chloroplasts;the contents of Cd in various subcellular fractions of tobacco roots were in an descending order of cell walls>cytosols>mitochondria>chloroplasts;under high Cd concentrations,tobacco plants were seriously harmed by Cd.This study provided theoretical basis for the improvement of tobacco production. | Xiaohui SONG Yingang LU Dan HE Wu RAN | 2015 | Agricultural Biotechnology2015，4，2： | 0 |
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