植物-土壤反的生态进化动力学解释了在气候变暖和生物控制下植物入侵者的传播潜力
Yan Sun1, Daniele Silvestro2,3,4, Gregor H Mathes5
1College of Resources and Environment, Huazhong Agricultural University, Wuhan, China.
Global change biology
|March 7, 2025
概括
气候变暖和昆虫生物控制改变了入侵植物遗传学和土壤微生物,创造了有利于Ambrosia的负面植物-土壤反.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 气候变化科学 气候变化科学
背景情况:
- 植物-土壤反 (PSFs) 对于入侵植物的成功至关重要.
- 关于进化时间尺度的研究有限,特别是关于气候变化的研究.
- 植物遗传学和土壤微生物相互影响,影响PSF.
研究的目的:
- 研究气候变暖和生物控制如何影响植物遗传学,土壤特性和微生物群落.
- 探索由此产生的PSF及其对侵入性植物性能及其传播潜力的影响.
- 了解全球变化下的入侵植物的生态进化动态.
主要方法:
- 一个为期5年的实地研究Ambrosia artemisiifolia (常见的杂草).
- 在模拟气候变暖和昆虫食草的条件下进行了四代人的选择实验.
- 公共花园PSF实验使用选定种群的种子和调节土壤.
主要成果:
- 变暖和草食差异性改变了植物遗传组成和土壤微生物群落.
- 这两个因素都产生了负的植物-土壤反 (PSF).
- 负PSF有利于植物在条件化的土壤中生长,保持遗传多样性,增强传播潜力,特别是从温暖到寒冷的气候.
结论:
- 气候变暖和生物控制管理显著影响侵袭性植物土壤相互作用.
- 由这些因素驱动的负PSF可以促进入侵物种的传播.
- 这些发现对于预测未来气候变化情景下的入侵物种动态至关重要.
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