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NaCl Improves Suaeda salsa Aniline Tolerance in Wastewater

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  • Jie Xu

    (State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
    University of Chinese Academy of Sciences, Beijing 100049, China
    School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
    College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China)

  • Yi Liu

    (State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Chao Zhu

    (School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China)

  • Honglei Jia

    (School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China)

  • Changyan Tian

    (State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Hongrui Ma

    (School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China)

  • Guanghui Lv

    (College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China)

Abstract

Halophytes have been studied as a model for morphological traits of adaptation to saline environments. However, little information has been given on plant growth, chlorophyll fluorescence responses, and change of ion content in halophytes grown in an aniline–salinity coexistent environment. This study hypothesized that aniline could induce alterations in plant growth, chlorophyll fluorescence, and ion content in Suaeda salsa , but salinity could promote the tolerance of halophytes to aniline. A 6 (aniline) × 3 (NaCl) factorial experiment (for a total of 18 treatments) was conducted to test the above hypothesis. After 30 d of cultivation, roots and shoots were harvested separately to analyze the effects of salinity on the seedling growth under aniline stress. Biomass accumulation was inhibited by aniline treatment, and the inhibition was significantly alleviated by 200 mM NaCl. The change in chlorophyll fluorescence in leaves with aniline stress was moderated by the addition of NaCl. The removal efficiency of aniline was significantly enhanced by moderate salinity. Aniline stress decreased the accumulation of Mg 2+ , but various concentrations of NaCl increased the accumulation of Mg 2+ , especially with 200 mM NaCl in both roots and shoots. Both aniline and salinity decreased the content of Ca 2+ . There was a negative correlation between the K + and NaCl concentrations and between the Cl − and aniline concentrations. Our results indicated that Suaeda salsa may be suitable for the remediation of salinity and aniline-enriched wastewater.

Suggested Citation

  • Jie Xu & Yi Liu & Chao Zhu & Honglei Jia & Changyan Tian & Hongrui Ma & Guanghui Lv, 2020. "NaCl Improves Suaeda salsa Aniline Tolerance in Wastewater," Sustainability, MDPI, vol. 12(18), pages 1-16, September.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:18:p:7457-:d:411721
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    Citations

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    Cited by:

    1. Dongping Liu & Huibin Yu & Fang Yang & Li Liu & Hongjie Gao & Bing Cui, 2020. "Characterizing Humic Substances from Native Halophyte Soils by Fluorescence Spectroscopy Combined with Parallel Factor Analysis and Canonical Correlation Analysis," Sustainability, MDPI, vol. 12(23), pages 1-15, November.
    2. Tamara Tadić & Bojana Marković & Jelena Radulović & Jelena Lukić & Ljiljana Suručić & Aleksandra Nastasović & Antonije Onjia, 2022. "A Core-Shell Amino-Functionalized Magnetic Molecularly Imprinted Polymer Based on Glycidyl Methacrylate for Dispersive Solid-Phase Microextraction of Aniline," Sustainability, MDPI, vol. 14(15), pages 1-15, July.

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