Fig. 8: Model of the role of GmBTB/POZ, GmLHP1, and GmWRKY40 expression in the response of soybean to Phytophthora sojae infection. | Communications Biology

Fig. 8: Model of the role of GmBTB/POZ, GmLHP1, and GmWRKY40 expression in the response of soybean to Phytophthora sojae infection.

From: GmBTB/POZ promotes the ubiquitination and degradation of LHP1 to regulate the response of soybean to Phytophthora sojae

Fig. 8

P. sojae induces the transcription of GmBTB/POZ, whereas GmLHP1 is downregulated during P. sojae infection. GmLHP1 functions as an upstream regulator to repress GmWRKY40 expression by directly suppressing its promoter activity and impairing SA accumulation, thus inhibiting plant defense responses. The increased levels of GmBTB/POZ recruit and degrade GmLHP1, thereby releasing the GmLHP1-suppressed expression of GmWRKY40 and thus increasing the defense response to P. sojae.

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