我国科学家发现“红蜘蛛”害螨的抗逆性“铠甲”

Core Insights - The research reveals that the red spider mite (Tetranychus cinnabarinus) has developed a thickened cuticle, which enhances its resistance to pesticides and environmental stressors, complicating pest control efforts [1][2] - The study identifies a specific gene, CPR25, that plays a crucial role in the mite's ability to adapt and develop this protective layer, providing insights into the evolution of pesticide resistance in arthropods [2] Group 1 - The red spider mite can damage over 1,200 plant species, significantly affecting crops like citrus, apples, and cotton, with potential yield reductions exceeding 50% [1] - The primary pesticide used against the red spider mite, pyrethroids, has seen reduced effectiveness due to the mite's developed resistance over time [1] - The research team discovered that the thickened cuticle of resistant mites reduces the efficacy of various acaricides, making pest management increasingly challenging [1] Group 2 - The study published in the journal "Science Advances" highlights a new mechanism of cuticle development in red spider mites, which may inform future pest control strategies [2] - The findings suggest that the release of circular RNA (circCPR25) by the CPR25 gene aids in the mite's adaptation, allowing for increased production of cuticle proteins [2] - This research lays the groundwork for the targeted development of more effective acaricides, promoting sustainable practices in the vegetable and fruit industries in China [2]