升高的CO2对番茄植物中TYLCV增强的Bemisia tabaci吸引力的影响
Ziqian Zhou1,2, Mingyue Yu1, Honggang Guo1
1State Key Laboratory of Animal Biodiversity Conservation and Integrated Pest Management, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Insect science
|February 6, 2026
概括
增加的二氧化碳不会改变番茄黄色叶子卷曲病毒 (TYLCV) 吸引白的方式. 病毒感染,而不是CO2,改变了植物的防御和挥发性排放,影响了昆虫载体的吸引力.
科学领域:
- 植物与昆虫的相互作用
- 植物病理学 植物病理学
- 气候变化生物学
背景情况:
- 大气中的二氧化碳水平可以影响植物对害虫和病原体的防御.
- 很少有研究研究过二氧化碳的增加如何影响植物对病毒载体昆虫的吸引力,特别是在植物病毒感染的背景下.
研究的目的:
- 为了确定二氧化碳升高的影响,番茄黄色叶子卷曲病毒 (TYLCV) 感染,以及植物基因型对番茄植物对白的吸引力.
- 阐明莉酸 (JA) 信号在病毒增强植物吸引力中的作用.
主要方法:
- 与环境水平 (400 ppm) 相比,使用高二氧化碳 (750 ppm) 的开放式室进行实地实验.
- 一种缺乏莉花酸的突变植物 (spr2) 与其野生型 (Castlemart) 番茄植物的比较.
- 评估白的吸引力,植物的光合作用率,TYLCV感染水平,JA信号基因表达,JA含量和挥发性单二烯排放.
主要成果:
- 升高的二氧化碳增加了番茄植物的光合作用率,并促进了TYLCV感染.
- TYLCV感染和植物基因型显著影响了白的吸引力,JA信号对于病毒增强的吸引力至关重要.
- TYLCV感染通过降低JA信号和降低JA含量来降低驱逐剂单烯的排放.
结论:
- TYLCV感染增加了番茄植物对白的吸引力,因为它减少了依赖JA的驱逐性单二烯排放.
- 这种病毒增强的吸引力独立于二氧化碳水平的升高,这表明植物-病毒-昆虫载体关系在气候变化下是强大的.
相关概念视频
02:35Noncovalent Attractions in Biomolecules
65.0K
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
65.0K
02:35Noncovalent Attractions in Biomolecules
19.5K
19.5K
03:12Freezing Point Depression and Boiling Point Elevation
40.3K
Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
40.3K
03:24Seedless Vascular Plants
67.1K
Seedless Vascular Plants Were the First Tall Plants on Earth
67.1K
01:21Factors Influencing Attraction II: Physical Attraction
261
Physical attractiveness plays a crucial role in shaping interpersonal attraction, influencing first impressions, social interactions, and long-term relationship dynamics. Psychological research consistently demonstrates that attractiveness affects social evaluations and behavioral outcomes in various contexts.Influence on Social InteractionsResearch has shown that individuals perceived as physically attractive often experience preferential treatment in social and professional settings. One...
261
01:22Local Attraction
387
Local attraction refers to disturbances in compass readings caused by magnetic influences from nearby objects such as metal fences, buried pipes, vehicles, buildings, power lines, or natural iron ore deposits. Small items like wristwatches, steel tools, or belt buckles can also interfere with the compass by creating local magnetic fields that distort the Earth's natural magnetic field. These distortions lead to inaccurate readings, posing navigation and land surveying challenges.Local...
387