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相关概念视频

Defenses Against Pathogens and Herbivores02:26

Defenses Against Pathogens and Herbivores

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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.
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Epiphytes, Parasites, and Carnivores02:40

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Plants often form mutualistic relationships with soil-dwelling fungi or bacteria to enhance their roots’ nutrient uptake ability. Root-colonizing fungi (e.g., mycorrhizae) increase a plant’s root surface area, which promotes nutrient absorption. While root-colonizing, nitrogen-fixing bacteria (e.g., rhizobia) convert atmospheric nitrogen (N2) into ammonia (NH3), making nitrogen available to plants for various biological functions. For example, nitrogen is essential for the...
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Transgenic Plants

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Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
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Plant Breeding and Biotechnology01:59

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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.
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相关实验视频

Updated: Jul 21, 2025

Inoculation Strategies to Infect Plant Roots with Soil-Borne Microorganisms
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是什么让一个好的植物入侵者?

Helena Korpelainen1, Maria Pietiläinen1

  • 1Department of Agricultural Sciences, Viikki Plant Science Centre, P.O. Box 27, FI-00014 University of Helsinki, Finland.

Life (Basel, Switzerland)
|July 29, 2023
PubMed
概括

植物的入侵性是由人类协助的分散,偏好被破坏的息地和多年生态生命周期驱动的. 无性繁殖和雌性生殖增强了全球入侵植物物种的传播.

科学领域:

  • 生态生态学 生态生态学
  • 进化生物学 进化生物学
  • 保护生物学 保护生物学

背景情况:

  • 侵入性物种在全球范围内构成重大生态和经济威胁.
  • 了解促进植物入侵的特征对于有效管理至关重要.
  • 外部因素 (非生物/生物制约因素) 和植物内在特征影响入侵成功.

研究的目的:

  • 确定有助于植物入侵性的关键特征.
  • 分析影响入侵植物全球传播和建立的因素.
  • 以全球入侵物种数据库 (IUCN) 的数据作为案例研究.

主要方法:

  • 分析与植物入侵成功相关的特征.
  • 检查生命史,遗传,竞争,分散和生殖特征.
  • 利用来自全球入侵物种数据库 (IUCN) 的数据进行案例研究分析.

主要成果:

  • 人类协助的分散,装饰性使用,乱的息地偏好和多年生生物历史是普遍存在的特征.
  • 最严重的入侵物种通常具有较窄的本地范围,但可以实现多大陆分布.
  • 混合生殖系统 (性和无性) 和雌雄性增强侵入性和建立性.
关键词:
适应 适应 适应 适应殖民化 殖民化的殖民化扩散散散的分散.遗传变异是一种遗传变异.侵入性植物 侵入性植物

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结论:

  • 无性繁殖和性繁殖 (尤其是雌性繁殖) 是植物入侵的重要资产.
  • 人类活动在侵入性植物的引入和全球分布中发挥着关键作用.
  • 有效的管理策略应考虑这些已识别的特征,以减轻植物入侵.