In a groundbreaking study published in Nature Communications, researchers from the Chinese mainland's Chinese Academy of Agricultural Sciences have uncovered how plants orchestrate a 'cry for help' to defend against disease. This innovative discovery sheds light on the intricate relationships between plants and their surrounding microbiomes.
Using a series of modified nonpathogenic bacteria to simulate pathogen attacks, the team observed that these \"mild\" bacteria can trigger a 'cry for help' response in plants. This response leads to the assembly of multiple microbiomes around the narrow zone between plant roots and the soil. Remarkably, this protective effect can persist for several planting cycles, offering long-lasting defense against pathogens.
Further investigations revealed that when a plant emits a 'cry for help' signal, a microorganism known as Devosia swiftly responds by multiplying in the plant's rhizosphere, actively defending against invading pathogens. Additionally, a polypeptide component of Devosia enhances this interaction by triggering further protective responses, thereby strengthening the bond between plants and beneficial microorganisms.
This interaction is not only pivotal for plant health and growth but also holds significant promise for sustainable agriculture. By harnessing these natural defense mechanisms, farmers and agriculturalists can develop eco-friendly strategies to protect crops, reducing the reliance on chemical pesticides and promoting healthier ecosystems.
The findings, reported by Science and Technology Daily, mark a significant advancement in our understanding of plant biology and microbiome interactions, potentially paving the way for innovative solutions in agriculture and plant disease management.
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Researchers unravel plants' 'cry for help' in fighting disease
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