Scientists decode the 'cry for help' response of plants to pathogens

In a report published on Science and Technology Daily on March 22, Chinese researchers revealed how plants gather rhizosphere microorganisms through a "call for help" mechanism to protect themselves from danger. pathogen invasion.

Devosia microorganisms can react quickly and multiply in the root zone to fight against pathogens. (Photo: Capital Gardens)

Researchers at the Chinese Academy of Agricultural Sciences used a series of modified non-pathogenic bacteria to simulate pathogen attacks.

They discovered that these 'temperate' bacteria can trigger a 'cry for help' response and thereby gather more microbiota around the narrow zone between the roots and the soil.

This effect can even last over multiple growing cycles, providing long-term protection to the crop.

According to Chinese scientists, after plants send out a "cry for help" signal, a type of microorganism called Devosia can quickly respond and multiply in the plant's root zone and "fight against the plant". fight" to protect plants from pathogens.

The polypeptide composition of Devosia can trigger a deeper response and enhance the interaction between plants and microorganisms. This interaction is believed to have great significance for plant growth and health.