植物保护学报2025，Vol.52Issue(5)：1073-1083,11.DOI:10.13802/j.cnki.zwbhxb.2025.2025052
不同光照处理对荔枝蒂蛀虫成虫昼夜活动节律及体内糖代谢的影响
Effects of different light treatments on the circadian activity rhythm and carbohydrate metabolism of litchi fruit borer Conopomorpha sinensis adults
摘要
Abstract
To investigate the circadian rhythm of litchi fruit borer Conopomorpha sinensis adults and the effects of nighttime light on their circadian rhythms and carbohydrate metabolism,we monitored locomotor activity,conducted physiological assays,and performed mating experiments under seven dif-ferent light treatments.The results showed that under a 14 L∶10 D photoperiod,both male and female adults exhibited a unimodal nocturnal activity pattern,characterized by high activity immediately after the onset of darkness and a rapid decline after the onset of light.Exposure to light during the dark phase significantly disrupted circadian rhythms,as reflected by reduced average activity frequency and rhythm index,and an increased proportion of arrhythmic individuals.Under continuous 24-h light,circa-dian rhythmicity nearly disappeared,accompanied by a significant reduction in mating rate.Regarding carbohydrate metabolism,continuous light exposure decreased the activities of trehalose-6-phosphate synthase(TPS)and trehalose transporter(TreTP)at 4 h and 8 h into the dark phase,reduced trehalose and total carbohydrate contents,and led to abnormal glucose accumulation.These findings suggest that nighttime light disrupts the spontaneous activity rhythm of C.sinensis adults,and continuous nighttime light not only abolishes circadian rhythms but also inhibits the accumulation of trehalose,resulting in insufficient energy supply during the dark period and consequently impairing mating behavior.关键词
荔枝蒂蛀虫/光照/自发活动/昼夜节律/糖代谢Key words
Conopomorpha sinensis/light/spontaneous activity/circadian rhythm/carbohydrate metabolism引用本文复制引用
全林发,姚琼,董易之,陈炳旭,徐淑,乔燕春..不同光照处理对荔枝蒂蛀虫成虫昼夜活动节律及体内糖代谢的影响[J].植物保护学报,2025,52(5):1073-1083,11.基金项目
国家自然科学基金(32102222),广州农作物新品种育种研究与示范推广项目(穗财编[2025]2号),广州市科技计划项目(2024E04J1261),广东省现代农业产业技术体系创新团队建设项目(2024CXTD09),广东省乡村振兴战略专项(2025-TS-2-4) （32102222）
