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Screening for Cd-Safe Cultivars of Chinese Cabbage and a Preliminary Study on the Mechanisms of Cd Accumulation

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  • Jingjie Wang

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
    These authors contributed equally to this work.)

  • Nan Yu

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
    These authors contributed equally to this work.)

  • Guangmao Mu

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China)

  • Kamran I. Shinwari

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China)

  • Zhenguo Shen

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China)

  • Luqing Zheng

    (College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China)

Abstract

With the rapid progress of industrialization, the effects of environmental contamination on plant toxicity, and subsequently on human health, is a growing concern. For example, the heavy metal pollution of soil such as that caused by cadmium (Cd) is a serious threat. Therefore, screening for pollution-safe edible plants is an essential approach for growing plants under heavy metal-contaminated soils. In the current study, 35 Chinese cabbage ( Brassica pekinensis L.) cultivars were selected with the aim of screening for Cd-safe cultivars (CSCs), analyzing their safety, and exploring the mechanism of Cd accumulation. Our field-culture experiments revealed that the Cd content in the edible parts of the cultivars were varied and were determined to possibly be CSCs. Hydroponics experiments were used to simulate six different degrees of soil contamination (high and low Cd concentrations) on possible CSCs. The results indicated a significant difference ( p < 0.05) in Cd concentration in the cultivars, and verified the safety of these possible CSCs. The analyses of the transport coefficient and expression levels showed that the differences in Cd accumulation among the Chinese cabbage cultivars were related to the expression of genes involved in absorption and transport rather than a root-to-shoot translocation limitation.

Suggested Citation

  • Jingjie Wang & Nan Yu & Guangmao Mu & Kamran I. Shinwari & Zhenguo Shen & Luqing Zheng, 2017. "Screening for Cd-Safe Cultivars of Chinese Cabbage and a Preliminary Study on the Mechanisms of Cd Accumulation," IJERPH, MDPI, vol. 14(4), pages 1-10, April.
    • Handle: RePEc:gam:jijerp:v:14:y:2017:i:4:p:395-:d:95173
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    Cited by:

    1. Tao Tang & Wei Kang & Mi Shen & Lin Chen & Xude Zhao & Yongkui Wang & Shunwen Xu & Anhuai Ming & Tao Feng & Haiyan Deng & Shuqi Zheng, 2022. "Accumulation Mechanism and Risk Assessment of Artemisia selengensis Seedling In Vitro with the Hydroponic Culture under Cadmium Pressure," IJERPH, MDPI, vol. 19(3), pages 1-15, January.
    2. Lei Shi & Zhaohui Guo & Fang Liang & Xiyuan Xiao & Chi Peng & Peng Zeng & Wenli Feng & Hongzhen Ran, 2019. "Effect of Liming with Various Water Regimes on Both Immobilization of Cadmium and Improvement of Bacterial Communities in Contaminated Paddy: A Field Experiment," IJERPH, MDPI, vol. 16(3), pages 1-14, February.
    3. Zhenglan Tai & Xinqiang Yin & Zhigang Fang & Gaoling Shi & Laiqing Lou & Qingsheng Cai, 2017. "Exogenous GR24 Alleviates Cadmium Toxicity by Reducing Cadmium Uptake in Switchgrass ( Panicum virgatum ) Seedlings," IJERPH, MDPI, vol. 14(8), pages 1-12, July.

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