获取策略及其对亚热带入侵植物入侵性的影响
Ming Guan1,2, Xiao-Cui Pan2, Jian-Kun Sun1
1Liaoning Key Laboratory for Biological Invasions and Global Changes, College of Bioscience and Biotechnology, Shenyang Agricultural University, Shenyang, Liaoning, China.
Frontiers in plant science
|September 6, 2023
概括
与本地物种相比,侵入性植物 (如Solidago canadensis) 显示出优越的 (N) 吸收策略,这有助于它们的入侵性. 它们在获得不同N形式的可塑性使他们能够在不同的土壤N环境中壮成长.
科学领域:
- 植物生态学植物生态学
- 侵入性物种 生物学 生物学
- 营养素循环循环的过程
背景情况:
- 植物通过各种吸收策略利用 (N),包括在N形式中获得偏好和可塑性.
- 虽然N水平影响植物生长,但N形式获取策略,特别是可塑性在异国植物入侵性中的作用仍未得到充分探索.
研究的目的:
- 为了调查入侵的加拿大虫 (Solidago canadensis) 和本地虫 (Artemisia lavandulaefolia) 之间的 (N) 形式获取策略的差异.
- 评估土壤N环境对这些策略的影响.
- 为了确定S. canadensis的N获取策略及其入侵性之间的关系.
主要方法:
- 在三个不同的息地中的四个现场地点使用N标记技术.
- 对比了S. canadensis和A. lavandulaefolia. 的N形式获取策略.
- 分析了土壤N水平和N形式比例的影响.
主要成果:
- 侵入性S. canadensis在所有息地显示出比本地A. lavandulaefolia更高的总生物量和N吸收.
- S. canadensis通过偏好主导的土壤N形式 (NH4+或NO3-) 展示了可塑性,而A. lavandulaefolia始终更喜欢NO3-.
- 侵入性物种在N吸收方面表现出更大的可塑性,特别是在农田,与生物质有积极的相关性.
结论:
- 侵入性植物的优越的N形式获取策略,包括可塑性,增强了它们的N吸收,并有助于它们的入侵性.
- 这项研究通过突出不同息地的差异性N形式利用的作用来增强对异国植物入侵性的理解.
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