用为媒介的Lycium Barbarum叶子特征的重塑驱动了Bactericera Gobica的多模式宿主选择
Zhao Shiwen1, Wei Hongshuang1, Qiao Haili1
1State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Plant, cell & environment
|March 8, 2026
概括
过度的化肥通过改变植物的线索和营养来增加狼类 (Bactericera gobica) 种群. 这项研究澄清了Lycium barbarum生产中输入和害虫爆发之间的联系.
科学领域:
- 农业科学 农业科学
- 昆虫学 昆虫学是一门学科.
- 植物生理学 植物生理学
背景情况:
- 在Lycium barbarum (狼) 种植中的高 (N) 输入与狼psyllid (Bactericera gobica) 爆发有关.
- 将肥与增加的害虫种群联系在一起的确切机制尚未完全理解.
研究的目的:
- 阐明气供应影响细菌菌群动态的机制 在商业Lycium barbarum生产中.
- 研究改变植物视觉/嗅觉线索和由驱动的花营养对虫行为和种群增长的综合影响.
主要方法:
- 在多个Lycium barbarum生产地区进行现场调查.
- 控制的实验,使用不同的含量.
- 行为测试,以评估类对植物线索的反应.
- 多组学分析检查植物代谢和生理变化.
- 人口统计测试以量化虫繁殖和丰富度.
主要成果:
- 随着气输入的增加,Bactericera gobica的感染严重程度显著增加.
- 高 (HN) 改变了植物的叶绿体和胡卜素通路,增强了视觉线索 (更深的绿色) 和嗅觉线索 (升高的胡卜素).
- 通过增加可溶性糖分,HN提高了体的营养质量,从而提高了体的接受和养,从而导致更高的卵位和 nymphal / adult 密度.
结论:
- 受精创造了一条多式自下而上的途径,通过增强宿主接触 (视觉/嗅觉线索) 和生育能力 (花营养) 来促进虫爆发.
- 优化管理对于降低Lycium barbarum生产中的害虫压力至关重要.
- 将营养物质管理与半化学和基于视觉的害虫监测相结合,提供了一种减轻狼草爆发的策略.
相关概念视频
Frequency-dependent Selection
24.4K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
24.4K
What is Natural Selection?
131.5K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
131.5K
Types of Selection
46.0K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
46.0K


