Cellular messengers involved in the inhibition of the Arabidopsis primary root growth by bacterial quorum-sensing signal N-decanoyl-L-homoserine lactone.

ABSTRACT:

Background

N-acyl-homoserine lactones (AHLs) are used as quorum-sensing signals by Gram-negative bacteria, but they can also affect plant growth and disease resistance. N-decanoyl-L-homoserine lactone (C10-HSL) is an AHL that has been shown to inhibit primary root growth in Arabidopsis, but the mechanisms underlying its effects on root architecture are unclear. Here, we investigated the signaling components involved in C10-HSL-mediated inhibition of primary root growth in Arabidopsis, and their interplay, using pharmacological, physiological, and genetic approaches.

Results

Treatment with C10-HSL triggered a transient and immediate increase in the concentrations of cytosolic free Ca²⁺ and reactive oxygen species (ROS), increased the activity of mitogen-activated p

SUBMITTER: Cao XY 

PROVIDER: S-EPMC9563914 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature