Huanglian, a perennial herbaceous plant of the Ranunculaceae family, is widely used in traditional Chinese medicine for its rhizomes and is one of the most commonly used medicinal materials. In 2022, it was selected as one of the "Top Ten Chu Medicines" in Hubei Province. With the continuous expansion of cultivation scale, the situation of Huanglian Baijuan disease in Hubei Province has become increasingly severe, leading to large-scale reduction and even complete crop failure for medicinal farmers.
Recently, the team led by You Jingmao from the Institute of Medicinal Materials at the Hubei Academy of Agricultural Sciences and the Key Laboratory of Biology and Cultivation of Medicinal Plants of the Ministry of Agriculture and Rural Affairs has made new progress in the field of disease prevention and control of medicinal materials. Their related paper was published in the "Journal of Agricultural and Food Chemistry."
The research group conducted preliminary research on the green prevention and control of Huanglian diseases, including pathogen isolation and identification, screening of control agents, soil acidification improvement, and biological control. This time, they mainly studied the antipathogenic activity of volatile organic compounds (VOCs) produced by Bacillus velezensis LT1, a strain screened in the previous stage, against Sclerotium rolfsii LC1, a pathogen causing Huanglian Baijuan disease.
The article systematically elucidated that the VOCs produced by Bacillus velezensis LT1 have a significant inhibitory effect on the mycelial growth, sclerotial germination, infection occurrence of Baijuan disease, and various other pathogenic fungi of medicinal materials. This indicates that the VOCs produced by LT1 have great potential for application in the prevention and control of Huanglian diseases, providing a research foundation for the development of specialized biocontrol agents for Huanglian.
Related article link: https://doi.org/10.1021/acs.jafc.4c00984
