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Key factors affect selenite absorption in wheat leaf blades: pH, temperature, light intensity and leaf position

Author

Listed:
  • Sinan Liu

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Feiyan Yu

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Zihao Fu

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Jinyong Yang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Menglin Chen

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China)

  • Yihan Fu

    (Agricultural College, Henan Agricultural University, Zhengzhou, Henan, P.R. China)

  • Yajuan Li

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Huiqing Chang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Wenli Zhou

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Xugang Wang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China)

  • Lianhe Zhang

    (Agricultural College, Henan University of Science and Technology, Luoyang, Henan, P.R. China
    Luoyang Key Laboratory of Plant Nutrition and Environmental Ecology, Luoyang, Henan, P.R. China
    Henan Jinxiwang Agricultural Science and Technology Company Limited, Luoyang, Henan, P.R. China)

Abstract

Foliage-spraying selenite solution is an effective measure to enhance selenium (Se) concentration in wheat grains. However, how pH, temperature, light intensity, and leaf position affects selenite absorption in wheat leaf blades is not fully understood. In this study, the effects of pH, temperature, light intensity, and leaf position on selenite absorption in wheat leaf blades were investigated. The results indicated that the selenite absorption rate dramatically decreased with increasing pH. Further study revealed that aquaporin inhibitors such as HgCl2 and AgNO3 strongly inhibited selenite absorption at pH 3.0. Light and higher temperatures significantly promoted selenite absorption. Newly expanded leaf blades had higher rates of selenite absorption than younger and older leaf blades. Thus, higher rates of selenite absorption in leaf blades should attribute to the entrance of selenite into mesophyll cells via aquaporins in the form of H2SeO3 at low pH values. Foliage-spraying selenite solution on upper leaf blades at lower pH values benefited to increase the selenite absorption rate in wheat leaf blades.

Suggested Citation

  • Sinan Liu & Feiyan Yu & Zihao Fu & Jinyong Yang & Menglin Chen & Yihan Fu & Yajuan Li & Huiqing Chang & Wenli Zhou & Xugang Wang & Lianhe Zhang, 2020. "Key factors affect selenite absorption in wheat leaf blades: pH, temperature, light intensity and leaf position," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(9), pages 431-436.
    • Handle: RePEc:caa:jnlpse:v:66:y:2020:i:9:id:337-2020-pse
    DOI: 10.17221/337/2020-PSE
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    References listed on IDEAS

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    1. Jinyong Yang & Feiyan Yu & Zihao Fu & Yihan Fu & Sinan Liu & Menglin Chen & Yajuan Li & Qizhuang Sun & Huiqing Chang & Wenli Zhou & Xugang Wang & Lianhe Zhang, 2019. "Pathway and driving forces of selenite absorption in wheat leaf blades," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(12), pages 609-614.
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