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February 27, 20260 citations

Bacillus velezensis RKN1111 induced CsHPD upregulation confers resistance of cucumber (Cucumis sativus L.) to Meloidogyne incognita.

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JMJIANQING MANWNing WangJZJian Zhang

Key Points

  • The aim is to explore how Bacillus velezensis RKN1111 can induce resistance in cucumbers against nematode infection.
  • Assessed the activation of the CsHPD gene in cucumbers
  • Measured levels of α-tocotrienol biosynthesis
  • Conducted functional validation assays to evaluate resistance against Meloidogyne incognita
  • Bacillus velezensis RKN1111 significantly upregulated the CsHPD gene
  • Increased α-tocotrienol levels correlated with reduced nematode infection
  • Identified a new metabolic defense pathway in cucumber plants

Abstract

We demonstrate that Bacillus velezensis RKN1111 induces cucumber resistance by activating the host gene CsHPD and enhancing α-tocotrienol biosynthesis. Functional validation assays confirmed that CsHPD and α-tocotrienol suppress infection by M. incognita. These findings uncover a previously unknown microbe-induced metabolic defense pathway and provide a promising genetic target for breeding nematode-resistant cucumbers. © 2026 Society of Chemical Industry.

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Cite This Study

MA et al. (2026) studied this question.

synapsesocial.com/papers/69a1355fed1d949a99abf2echttps://doi.org/10.1002/ps.70680
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