Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation and College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, PR China.
BNU-HKUST Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, Guangdong, 519087, PR China.
Chemosphere. 2023 Jan;310:136663. doi: 10.1016/j.chemosphere.2022.136663. Epub 2022 Oct 4.
Lithium (Li) is gaining attention due to rapid rise in modern industries but their ultimate fingerprints on plants are not well established. Herein, we executed a meta-analysis of the existing recent literature investigating the impact of Li sources and levels on plant species under different growth conditions to understand the existing state of knowledge. Toxic effects of Li exposure in plants varies as a function of medium and interestingly, more negative responses are reported in hydroponic media as compared to soil and foliar application. Additionally, toxic effects of Li vary with Li source materials and LiCl more negatively affected plant development parameters such as plant germination (n = 48) and root biomass (n = 57) and recorded highly uptake in plants (n = 78), while LiNO has more negative effects on shoot biomass. The Li at <50 mg L concentrations significantly influenced the plant physiological indicators including plant germination and root biomass, while 50-500 mg L Li concentration influence the biochemical parameters. The dose-response relationship (EC) ranges regarding the exposure medium of Li sources in plant species were observed 24.6-196.7 ppm respectively. The uptake potential of Li is dose-dependent and their translocation/bioaccumulation remains unknown. Future work should include full life cycle studies of the crops to elucidate the bioaccumulation of Li in edible tissues and to investigate possible trophic transfer of Li.
锂（Li）在现代工业中迅速崛起，引起了人们的关注，但它们对植物的最终影响尚未得到充分证实。在此，我们对现有近期文献进行了荟萃分析，研究了不同生长条件下不同锂源和水平对植物物种的影响，以了解现有知识状况。植物中 Li 暴露的毒性效应随介质而变化，有趣的是，与土壤和叶面施用相比，水培介质中报告的负面反应更多。此外，Li 的毒性效应随 Li 源材料而变化，LiCl 对植物发育参数（如植物发芽（n=48）和根生物量（n=57））的负面影响更大，并且在植物中记录到更高的摄取量（n=78），而 LiNO 对地上生物量的影响更大。Li 在 <50 mg L 浓度下显著影响植物的生理指标，包括植物发芽和根生物量，而 50-500 mg L Li 浓度则影响生化参数。在植物物种中，Li 源暴露介质的剂量-反应关系（EC）范围分别为 24.6-196.7 ppm。Li 的摄取潜力与剂量有关，其迁移/生物累积仍不清楚。未来的工作应包括对作物进行全生命周期研究，以阐明 Li 在可食用组织中的生物累积情况，并研究 Li 可能的营养转移。
