The Silencing of the <i>StPAM16-1</i> Gene Enhanced the Resistance of Potato Plants to the Phytotoxin Thaxtomin A.

ABSTRACT: Potato common scab (CS) caused by Streptomyces scabiei is a severe disease that threatens tuber quality and its market value. To date, little is known about the mechanism regulating the resistance of potato to CS. In this study, we identified a presequence translocase-associated motor 16 gene from potato (designated StPAM16-1) that is involved in the response to the phytotoxin thaxtomin A (TA) secreted by S. scabiei. The StPAM16-1 protein was localized in the mitochondria, and the expression of the gene was upregulated in potato leaves treated with TA. The suppression of StPAM16-1 in potato led to enhanced resistance to TA and S. scabiei. Protein interaction analyses revealed that StPAM16-1 interacted with the subunit 5b of the COP9 signalosome complex (S

SUBMITTER: Liu L 

PROVIDER: S-EPMC11818755 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature