China Builds World's First Custom Plant Immunity System for Epidemic Response
核心洞察
Researchers from the Chinese Academy of Sciences and Qi Biodesign (搜索) developed programmable synthetic immune receptors that can be introduced into plants to detect pathogen proteins and trigger immune responses.
The platform enables plants to recognize proteins made by specific bacteria, viruses, and fungi, neutralizing threats to essential crops.
The work, published in the peer-reviewed journal Science, establishes a versatile platform for efficient plant immunity engineering.
Researchers in China have built what they describe as the world's first custom plant immunity system for epidemic response, introducing programmable synthetic immune receptors into plants that can detect proteins made by specific bacteria, viruses, and fungi and trigger an immune response to neutralize the threat.
The work was carried out by a team from the Chinese Academy of Sciences' Institute of Genetics and Developmental Biology and the biotechnology company Qi Biodesign (搜索), and was published in the peer-reviewed journal Science last month.
"This work establishes a versatile platform for efficient plant immunity engineering," the team said in the paper.
A Programmable Approach to Plant Defense
Around the world, essential crops are threatened by plant pathogens that can devastate agricultural yields and compromise global food security. Plant breeding programs have traditionally introduced resistance genes that encode receptors capable of recognizing proteins secreted by pathogens. When these receptors bind to their protein target, they can trigger an immune response.
However, the team noted that this natural resistance is frequently short-lived. "However, this resistance is often rapidly overcome by fast-evolving pathogens, particularly in modern agricultural systems characterised by large-scale monoculture of genetically uniform crops," the team said.
Addressing Biological Vulnerability
The programmable synthetic immune receptors developed by the researchers offer a way to engineer plant immunity more efficiently, moving beyond reliance on naturally occurring resistance genes that pathogens can rapidly evolve to evade.
The team highlighted that this biological vulnerability is what heightens the threat of agro-terrorism and plant bioweapons, or pathogens purposefully introduced or modified to target specific crops. By enabling plants to be programmed to detect and respond to specific pathogen proteins, the platform provides a potential tool for strengthening crop defenses against both natural and deliberate threats to food security.