除草剂干扰:草甘推动了植物-草食动物相互作用的生态和演变
Grace M Zhang1, Regina S Baucom1
1Department of Ecology and Evolutionary Biology, University of Michigan, 4034 Biological Sciences Building, Ann Arbor, MI, 48109, USA.
The New phytologist
|November 21, 2024
概括
暴露于除草剂增加了昆虫在普通早晨光上的草食. 植物对草甘的耐药性与草食性耐药性有关,这表明除草剂可以改变植物-昆虫生态进化动态.
科学领域:
- 生态进化的动态.
- 植物与昆虫的相互作用
- 人类造成的压力因素
背景情况:
- 植物 - 草食动物相互作用是由共同进化的过程塑造的.
- 新型人为压力,如除草剂,可以破坏这些自然动态.
- 抗除草药耐药性进化对昆虫食草的影响在很大程度上是未知的.
研究的目的:
- 调查除草剂暴露对Ipomoea purpurea中的昆虫食草模式的生态影响.
- 评估除草剂耐药性对植物-食草动物相互作用的潜在进化后果.
- 了解除草剂如何推动生态进化动态.
主要方法:
- 使用Ipomoea purpurea (常见的早晨荣耀) 进行了一项常见花园实验.
- 植物暴露于除草剂草甘 (Roundup).
- 分析了昆虫草食水平和损伤模式.
主要成果:
- 用草甘处理的植物表现出明显更高水平的昆虫草食.
- 在暴露于除草剂的植物中,草食动物的损伤模式发生了改变.
- 草甘耐药性与草食动物耐药性积极相关.
- 观察到对草甘耐药性增加的积极选择,这表明通过自助旅行可能增加草食性耐药性.
结论:
- 杀草剂,如草甘,可以显著影响和潜在地驱动植物-草食动物相互作用的生态进化动态.
- 对除草剂耐药性的选择可能无意中导致对昆虫草食的耐药性增加.
- 抗除草剂的进化有可能重塑植物与昆虫的关系.
更多相关视频
相关概念视频
Gene Flow
34.8K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
34.8K
The Roles of Bacteria and Fungi in Plant Nutrition
35.1K
Plants have the impressive ability to create their own food through photosynthesis. However, plants often require assistance from organisms in the soil to acquire the nutrients they need to function correctly. Both bacteria and fungi have evolved symbiotic relationships with plants that help the species to thrive in a wide variety of environments.
35.1K
Defenses Against Pathogens and Herbivores
23.1K
Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
23.1K
Plant Breeding and Biotechnology
18.8K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.8K
Predator-Prey Interactions
16.1K
Predators consume prey for energy. Predators that acquire prey and prey that avoid predation both increase their chances of survival and reproduction (i.e., fitness). Routine predator-prey interactions elicit mutual adaptations that improve predator offenses, such as claws, teeth, and speed, as well as prey defenses, including crypsis, aposematism, and mimicry. Thus, predator-prey interactions resemble an evolutionary arms race.
16.1K
Threats to Biodiversity
22.1K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.1K


