Conservation of Long-Range Signaling in Land Plants via Glutamate Receptor–Like Channels.

The article discusses the conservation of long-range signaling in land plants through glutamate receptor-like channels. It explains how plants respond to environmental stresses by activating local and systemic defense responses. The study focuses on the liverwort Marchantia polymorpha, a non-vascular plant, and demonstrates the spatiotemporal coupling between calcium (Ca2+) and electrical signals in response to mechanical injury. The researchers also investigate the molecular machinery underlying these signals and find that the glutamate receptor-like channel MpGLR plays a crucial role in long-range signaling. The findings suggest that MpGLR-mediated long-range signaling is widely conserved in land plants. [Extracted from the article]