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Symbiotic and Antagonistic Functions of the Bacterium Burkholderia cepacia BsNLG8, from the Nilaparvata lugens (Stal)

Author

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  • Xuemei Wang

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

  • Rongrong Yang

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

  • Junaid Zafar

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

  • Chen Peng

    (China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510385, China)

  • Xuewei Zhang

    (China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510385, China)

  • Yingying Hong

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

  • Surajit De Mandal

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

  • Wenqing Zhang

    (State Key Laboratory of Biocontrol to School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China)

  • Fengliang Jin

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

  • Xiaoxia Xu

    (Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, College of Plant Protection, South China Agricultural University, Guangzhou 510642, China)

Abstract

Bacterial symbionts are widespread in insects and other animals. These microbes play crucial roles in many aspects of insect physiology and biology, including immunity, nutrition and confronting plant defenses. In the present study, we isolated and identified the bacterium Burkholderia cepacia BsNLG8 from the brown planthopper (BPHs), Nilaparvata lugens , a devastating pest of rice crops worldwide. Plate confrontation assay indicated that BsNLG8 significantly inhibited the growth of phytopathogenic fungi. In addition, the BsNLG8 strain demonstrated the ability to produce siderophores, which explains its antagonistic mechanism. Lastly, we explored the nicotine degradation ability of BsNLG8 using in vitro and in vivo methods. In vitro, HPLC analysis results showed that BsNLG8 could significantly reduce the concentration of nicotine in the medium at 36 h. Moreover, microinjection of BsNLG8 in axenic BPHs increased the survival rate of the host on nicotine-containing rice seedlings. These findings could serve as the basis of future research in deciphering the interaction between host and symbionts.

Suggested Citation

  • Xuemei Wang & Rongrong Yang & Junaid Zafar & Chen Peng & Xuewei Zhang & Yingying Hong & Surajit De Mandal & Wenqing Zhang & Fengliang Jin & Xiaoxia Xu, 2022. "Symbiotic and Antagonistic Functions of the Bacterium Burkholderia cepacia BsNLG8, from the Nilaparvata lugens (Stal)," Agriculture, MDPI, vol. 12(12), pages 1-14, December.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:12:p:2106-:d:997912
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    References listed on IDEAS

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    1. Gu Gong & Yu-Dan Zhang & Zhen-Fei Zhang & Wei-Jian Wu, 2022. "Alternately Rearing with Susceptible Variety Can Delay the Virulence Development of Insect Pests to Resistant Varieties," Agriculture, MDPI, vol. 12(7), pages 1-12, July.
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