In a report published in Science and Technology Daily on March 22, Chinese researchers revealed how plant species gather root-zone microorganisms through a “distress signal” mechanism to protect themselves against the threat of pathogen invasion.
The microorganism Devosia can quickly react and multiply its “numbers” in the root zone to fight off pathogens. (Photo: Capital Gardens)
Researchers at the Chinese Academy of Agricultural Sciences used a series of non-pathogenic bacteria that had been modified to simulate pathogen attacks.
They discovered that these “peaceful” bacteria could trigger a “distress signal” response, which in turn assembles a diverse microbial community in the narrow zone between the roots and the soil.
This effect can even extend over multiple planting cycles, providing long-lasting protection for crops.
According to Chinese scientists, after plants signal a “distress call,” a type of microorganism named Devosia can react swiftly and multiply its “numbers” in the plant’s root zone, effectively “fighting” to protect the plants from pathogens.
The polypeptide component of Devosia can activate deeper responses and enhance interactions between plants and microorganisms. This interaction is believed to be significantly beneficial for plant growth and health.
