昆虫信息素

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科学家解码蝗虫群聚信息素的生物合成途径与行为操控
Jing Ji Guan Cha Wang· 2025-06-30 09:27
Core Insights - The research focuses on the biosynthesis pathway of the locust aggregation pheromone 4-vinylphenol (4VA), which is crucial for pest control strategies in agriculture [1][3] - The study reveals that locusts utilize common amino acids from plants to synthesize their specific aggregation pheromone, showcasing an energy-efficient adaptation strategy [2] Group 1: Pheromone Biosynthesis - The complete biosynthesis pathway of 4VA has been elucidated, identifying key precursor compounds and enzymes 4VPMT1 and 4VPMT2 [1] - The transformation of 4VP to 4VA is mediated by the precise regulation of 4VPMTs expression, allowing for the release and termination of the pheromone [2] Group 2: Chemical Regulation - The study developed specific small molecule inhibitors targeting 4VPMTs, enabling precise chemical control over the biosynthesis and release of 4VA [3] - The inhibitor 4-nitrophenol (4NP) competes with 4VP for binding to 4VPMTs, demonstrating a high affinity that allows for selective inhibition of 4VA synthesis [3] Group 3: Implications for Pest Control - This research provides a novel strategy for pest management by intervening in insect pheromone pathways rather than relying on traditional chemical pesticides [3] - The findings suggest a potential shift in pest control methods from reliance on chemical insecticides to more precise and environmentally friendly behavioral regulation [3]
科学与健康丨生态防范蝗灾!我国科学家破译“虫族密会”暗号
Xin Hua Wang· 2025-06-26 16:50
Core Viewpoint - Chinese researchers have successfully decoded the aggregation pheromone of locusts, enabling ecological prevention of locust plagues through precise chemical regulation of the pheromone's biosynthesis and release [1][6]. Group 1: Research Achievements - The research team from the Chinese Academy of Sciences and Peking University has identified the complete biosynthetic pathway of the locust aggregation pheromone 4-vinylphenol (4VA) [3][4]. - Key precursor compounds and essential biosynthetic enzymes (4VPMT1 and 4VPMT2) for 4VA have been successfully identified [4][5]. Group 2: Implications for Pest Control - The study provides a new approach to pest control by developing specific small molecule inhibitors that can regulate locust aggregation pheromone, potentially allowing for targeted interventions [5][7]. - This method aims to reduce the reliance on traditional chemical pesticides, which often harm beneficial insects and contaminate the environment [7][8]. Group 3: Future Directions - The research opens up new pathways for sustainable pest management by utilizing insect pheromones to control locust behavior, thereby minimizing ecological damage [7][8]. - The findings could lead to innovative strategies for biological pest control, such as using antagonists to disrupt locust aggregation and enhance natural predation by birds [7][8].