在微塑性毒性下通过纳米减轻硬质膜的双应力缓解:再氧平衡,病原体抑制和转录组重编程
Kunhao Zhang1, Muhammad Raza Farooq1,2,3, Youtao Chen2,3
1Anhui Province Key Laboratory of Crops Integrated Pest Management, Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Institutes, School of Plant Protection, Anhui Agriculture University, Hefei 230036, China.
Journal of agricultural and food chemistry
|December 12, 2025
概括
纳米颗粒 (SeNPs) 保护菜植物免受微塑料 (MP) 和真菌 (Sclerotinia sclerotiorum) 的破坏. SeNP可以改善植物生长,光合作用和防御机制,防止环境压力因素的组合.
科学领域:
- 环境科学 环境科学
- 植物病理学 植物病理学
- 纳米技术纳米技术
背景情况:
- 微塑料 (MPs) 和硬质结核菌 (HP) 对植物生长产生负面影响.
- 没有充分了解MPs和HP的联合作用,以及纳米粒子 (SeNPs) 的缓解潜力.
研究的目的:
- 在联合MP和HP压力下调查SeNPs对大麻 (Brassica napus L.) 的保护作用.
- 评估对SeNPs治疗的生理,生化和转录基因反应.
主要方法:
- 评估种子发芽,植物活力和生长速度.
- 测量了光合作用效率,叶绿素含量,同化和叶子水分.
- 分析了抗氧化酶活性,活性氧物种 (ROS) 和脂质过氧化.
- 进行了转录组分析,以检查基因表达模式.
- 评估了SeNPs对S. sclerotiorum的抗真菌活性.
主要成果:
- SeNPs增强了种子发芽和植物活力,而MP则减少了生长.
- 同时应用SeNPs与MPs改善了光合作用,叶绿素,同化和叶子水分.
- SeNPs对S. sclerotiorum表现出显著的抗真菌活性,抑制了细胞生长和酶分泌.
- SeNPs降低了ROS和脂质过氧化,调节了H2O2水平,并增强了抗氧化防御.
- 转录组分析表明,SeNPs恢复了光合作用和防御基因表达,调节了MAPK信号,并改善了氧化还原平衡.
结论:
- SeNPs有效地减轻了微塑料的植物毒性和兰中的Sclerotinia sclerotiorum的致病性.
- SeNPs在管理植物中的联合生物和非生物压力方面显示出监管潜力.
- 结果强调了考虑与环境微塑料暴露相关的健康风险的重要性.
相关概念视频
01:09Microbe-Plant Interactions
140
Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...
140
01:28Microbial Bioremediation of Pesticides
85
Pesticides often feature structurally complex chemical architectures, incorporating halogen groups and multiple aromatic rings. These characteristics confer high chemical stability, rendering many pesticides resistant to natural degradation processes. This resistance poses significant environmental concerns, as persistent pesticide residues can accumulate in ecosystems and affect non-target organisms.Despite the inherent stability of many pesticides, certain microorganisms possess the metabolic...
85
01:24Microbial Corrosion
93
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
93
01:28Microbial Bioremediation of Plastics
131
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
131