纳米塑料是否对植物和根瘤菌具有潜在毒性? 当前的知识和建议。
Are nanoplastics potentially toxic for plants and rhizobiota? Current knowledge and recommendations.
机构信息
Univ. Rennes, CNRS, Géosciences Rennes - UMR 6118, F-35000 Rennes, France.
Univ. Rennes, CNRS, ECOBIO - UMR 6553, F-35000 Rennes, France.
出版信息
NanoImpact. 2023 Jul;31:100473. doi: 10.1016/j.impact.2023.100473. Epub 2023 Jun 29.
Soil is now becoming a reservoir of plastics in response to global production, use/disposal patterns and low recovery rates. Their degradation is caused by numerous processes, and this degradation leads to the formation and release of plastic nanoparticles, i.e., nanoplastics. The occurrence of nanoplastics in the soil is expected to both directly and indirectly impact its properties and functioning. Nanoplastics may directly impact the physiology and development of living organisms, especially plants, e.g., by modifying their production yield. Nanoplastics can also indirectly modify the physicochemical properties of the soil and, as a result, favour the release of related contaminants (organic or inorganic) and have an impact on soil biota, and therefore have a negative effect on the functioning of rhizospheres. However all these results have to be taken carefully since performed with polymer nano-bead not representative of the nanoplastics observed in the environment. This review highlight thus the current knowledge on the interactions between plants, rhizosphere and nanoplastics, their consequences on plant physiology and development in order to identify gaps and propose scientific recommendations.
土壤现在正成为塑料的储存库,这是由于全球的生产、使用/处置模式和低回收率造成的。它们的降解是由许多过程引起的,这种降解导致了塑料纳米颗粒(即纳米塑料)的形成和释放。预计纳米塑料在土壤中的存在将直接和间接影响其性质和功能。纳米塑料可能会直接影响生物体,特别是植物的生理和发育,例如通过改变它们的产量。纳米塑料还可以间接改变土壤的物理化学性质,从而有利于相关污染物(有机或无机)的释放,并对土壤生物群产生影响,因此对根际的功能产生负面影响。然而,所有这些结果都必须谨慎对待,因为使用的聚合物纳米珠不能代表在环境中观察到的纳米塑料。因此,本综述强调了目前关于植物、根际和纳米塑料之间相互作用的知识,以及它们对植物生理和发育的影响,以便确定差距并提出科学建议。