# The symphony of maize signaling quartet defending against gray leaf spot

## TL;DR

The paper explains how a group of four proteins in maize work together to defend against a common fungal disease, showing how plant immunity is conserved.

## Contribution

The study identifies a conserved maize signaling quartet that governs resistance to gray leaf spot, a major fungal disease.

## Key findings

- A maize signaling module comprising ZmWAKL-ZmWIK-ZmBLK1-ZmRBOH4 governs resistance to gray leaf spot.
- This signaling quartet is conserved in plant immunity across species.
- The module activates NADPH oxidases to generate reactive oxygen species (ROS) for defense.

## Abstract

In plant immunity, a well-orchestrated cascade is initiated by the dimerization of receptor-like kinases (RLKs), followed by the phosphorylation of receptor-like cytoplasmic kinases (RLCKs) and subsequent activation of NADPH oxidases for ROS generation. Recent findings by Zhong et al. illustrated that a maize signaling module comprising ZmWAKL-ZmWIK-ZmBLK1-ZmRBOH4 governs quantitative disease resistance to grey leaf spot, a pervasive fungal disease in maize worldwide, unveiling the conservation of this signaling quartet in plant immunity.