Rodrigues Jorge, Gerós Hernâni, Côrte-Real Manuela, Cássio Fernanda
CBMA-Centre of Molecular and Environmental Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal.
IB-S-Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal.
J Xenobiot. 2025 May 1;15(3):65. doi: 10.3390/jox15030065.
Glyphosate based-herbicides are stressors of great concern because they can impact aquatic ecosystems. Similarly, lithium, a metal, is currently of concern because of its increasing use worldwide. Because glyphosate-based herbicides and lithium might co-occur in aquatic environments, there is a need to assess their impacts on aquatic organisms, such as aquatic fungi, as they play a key role in plant litter decomposition in streams. Microcosm assays were used to examine the effects of lithium and the herbicide isopropylammonium glyphosate (IPAG), alone or in mixtures, on microbial leaf mass loss, total fungal sporulation and biomass production. IPAG (alone and combined with LiCl) neither affected plant litter decomposition nor fungal biomass production, but boosted total fungal sporulation. , the most tolerant species among the twelfth leaf inhabitant fungal species, is the major contributor to total fungal sporulation. IPAG interacts with LiCl in the total fungal sporulation and sporulation of , , and , indicating a species dependent-effect. IPAG alone or combined with LiCl greatly decreased the diversity of spores, as did as LiCl alone, but to a lesser extent. Finally, aquatic fungal communities reveal redundancy and resiliency to IPAG and LiCL, maintaining the health of aquatic ecosystems.
草甘膦基除草剂是备受关注的应激源，因为它们会影响水生生态系统。同样，金属锂目前也受到关注，因为其在全球的使用量不断增加。由于草甘膦基除草剂和锂可能在水生环境中同时出现，因此有必要评估它们对水生生物（如水生真菌）的影响，因为水生真菌在溪流中植物残体分解中起着关键作用。微型生态系统试验用于研究锂和除草剂异丙胺草甘膦（IPAG）单独或混合使用对微生物叶片质量损失、总真菌孢子形成和生物量生产的影响。IPAG（单独使用以及与LiCl混合使用）既不影响植物残体分解，也不影响真菌生物量生产，但会促进总真菌孢子形成。在第十二种叶片栖息真菌物种中最具耐受性的物种是总真菌孢子形成的主要贡献者。IPAG与LiCl在总真菌孢子形成以及[具体物种]、[具体物种]和[具体物种]的孢子形成方面存在相互作用，表明存在物种依赖性效应。单独的IPAG或与LiCl混合使用会大幅降低孢子多样性，单独使用LiCl时也是如此，但程度较轻。最后，水生真菌群落显示出对IPAG和LiCL的冗余性和恢复力，维持了水生生态系统的健康。
