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Transgenic Bt cotton inhibited arbuscular mycorrhizal fungus differentiation and colonization

Author

Listed:
  • Xiuhua CHEN
  • Rui ZHANG

    (College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, P.R. China)

  • Fengling WANG

    (College of Resources and Environment, Huazhong Agricultural University, Wuhan, Hubei, P.R. China)

Abstract

The present study investigated the impact of transgenic Bacillus thuringiensis (Bt) cotton on several aspects of arbuscular mycorrhizal (AM) fungus Funneliformis mosseae. The results showed that Bt cotton significantly inhibited spore germination and pre-symbiotic hyphal growth. The appressorium density, arbuscule frequency and colonization intensity in Bt roots were also decreased. The statistical analysis demonstrated that the transformation event resulted in the inhibition of hyphal development and colonization. The reduced interaction between AM fungi and plants could affect nutrient uptake and transportation in plant-fungus symbiosis. The mechanism might involve the direct toxicity of Bt toxins or the interference of signal perception between AM fungus and Bt cotton.

Suggested Citation

  • Xiuhua CHEN & Rui ZHANG & Fengling WANG, 2017. "Transgenic Bt cotton inhibited arbuscular mycorrhizal fungus differentiation and colonization," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 63(2), pages 62-69.
    • Handle: RePEc:caa:jnlpse:v:63:y:2017:i:2:id:743-2016-pse
    DOI: 10.17221/743/2016-PSE
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    References listed on IDEAS

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    1. Kohki Akiyama & Ken-ichi Matsuzaki & Hideo Hayashi, 2005. "Plant sesquiterpenes induce hyphal branching in arbuscular mycorrhizal fungi," Nature, Nature, vol. 435(7043), pages 824-827, June.
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