根创伤有助于农作物中微塑料的吸收
Jingjing Yin1, Xiaozun Li1, Feng Cui2
1Institute of Wetland Agriculture and Ecology, Shandong Academy of Agricultural Sciences, Ji'nan, Shandong Province, China.
Nature communications
|March 5, 2026
概括
根深处的伤口,而不是浅层的伤口,为微塑料创造了进入塔罗和玉米等作物中的入口点. 这些微塑料通过植物体传播,突出了食品安全的风险和需要谨慎的农业.
科学领域:
- 环境科学 环境科学
- 植物生物学 植物生物学
- 食品安全 食品安全
背景情况:
- 微塑料 (MPs) 造成越来越多的环境问题,可能通过植物进入食物链.
- 植物根在生命周期中容易受到身体伤害,但它们在MP吸收中的作用尚不清楚.
研究的目的:
- 调查根部损伤是否有助于微塑料在作物中的吸收和转移.
- 为了确定伤口深度对微塑料透和积累的影响.
主要方法:
- 对微塑料透到受伤 (浅层和深层) 和未受伤植物根的比较分析.
- 在受控条件下的塔罗和玉米组织中微塑料积累的量化.
- 在不同的生长介质中通过体容器研究微塑料的运输.
主要成果:
- 浅根的伤口和未受伤的根源表现出对微塑料透的抵抗力.
- 根深处的伤口 (延伸到石碑) 提供了微塑料进入塔罗和玉米的快速通道.
- 微塑料通过体血管向上转移,在塔罗和玉米茎中观察到显著的积累.
结论:
- 根损伤,特别是深层损伤,显著增加了微塑料的吸收,转移和在作物中的积累.
- 研究结果强调了根健康在防止食品受到微塑料污染方面的关键作用.
- 迫切需要农业实践,尽量减少根损害,以确保食品安全.
更多相关视频
08:21Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies
Published on: July 27, 2022
4.9K
05:05Quantification of Polybutylene Adipate Terephthalate-based Micro- and Nano-plastics from Soil Using Proton Nuclear Magnetic Resonance Spectroscopy
Published on: June 6, 2025
861
相关概念视频
Water and Mineral Acquisition
36.1K
Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
36.1K
The Roles of Bacteria and Fungi in Plant Nutrition
47.6K
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.
47.6K
Responses to Drought and Flooding
12.2K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
12.2K
Key Elements for Plant Nutrition
24.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.7K
The Apoplast and Symplast
54.7K
Plant growth depends on its ability to take up water and dissolved minerals from the soil. The root system of every plant is equipped with the necessary tissues to facilitate the entry of water and solutes. The plant tissues involved in the transport of water and minerals have two major compartments - the apoplast and the symplast. The apoplast includes everything outside the plasma membrane of living cells and consists of cell walls, extracellular spaces, xylem, phloem, and tracheids. The...
54.7K
