A single gene and a unique layer of regulation opens the door for novel plant-fungi interactions

Soil fungi called ectomycorrhizae (ECM) have the ability to penetrate plant roots and provide water and nutrients to the plants in exchange for sugar. This mutually beneficial relationship helps increase plant growth. In order to take advantage of these fungi while protecting themselves from harmful pathogens, plants have developed a complex regulatory system that determines which fungi can inhabit their root system.

A recent study published in the journal Cells has identified the underlying processes of plant signaling within this regulatory system that allows a specific ECM species to colonize plant roots. This research provides a detailed understanding of how a single gene can reprogram molecular pathways to allow beneficial fungi to colonize plant roots. By understanding these signaling pathways, scientists can develop strategies to selectively engineer beneficial symbiosis while preventing the entry of pathogens. This will lead to the breeding of plants with improved productivity and sustainability.

In a previous study, researchers identified a specific gene called PtLecRLK1 that allows a beneficial fungus, Laccaria bicolor, to colonize the roots of the Populus trichocarpa tree. The researchers have now shown that this gene can be genetically engineered into non-host plants, such as switchgrass, to allow fungal colonization similar to what is observed in its native host. The PtLecRLK1 gene recognizes the presence of L. bicolor and reprograms intracellular signaling to facilitate its colonization of plant root cells.

In this study, the researchers used mass spectrometry-based phospho-proteomics to identify the relevant signaling pathways associated with PtLecRLK1 expression in switchgrass. The team’s findings reveal that PtLecRLK1 interferes with plant defense mechanisms to establish and maintain colonization by L. bicolor.

Denial of responsibility! SamacharCentrl is an automatic aggregator of Global media. In each content, the hyperlink to the primary source is specified. All trademarks belong to their rightful owners, and all materials to their authors. For any complaint, please reach us at – [email protected]. We will take necessary action within 24 hours.