Complex research on the allelopathic effect of macrophytes on cyanobacteria and the effect of microplastics on macrophytes, cyanobacteria, and macrophytes allelopathy on cyanobacteria

研究了微塑料(MPS)对铜绿假单胞菌暴露罗莱玛的影响。同时测定了MPS对蓝藻的抑制作用。与单一培养相比，微塑料在铜绿假单胞菌共培养中对罗莱玛根部的吸附没有变化。与单一培养相比，蓝藻对罗氏沼虾的生长和生理影响较大。在共存条件下，低浓度MP抑制铜绿假单胞菌的生长，高浓度则促进铜绿假单胞菌生长。MP浓度越高，氧化应激越强。纳米塑料暴露实验表明，纳米塑料对罗莱玛和铜绿假单胞菌的生长和生理也有影响。实地考察发现，我们测试的几乎所有淡水资源都受到了微塑料的污染。

The effect of microplastics (MPs) on the M. roraima response to M. aeruginosa exposure was studied. The effect of MPs on cyanobacteria was also tested. The adsorption of microplastics to the M. roraima roots was unchanged in M. aeruginosa co-culture compared to the monoculture. The cyanobacteria affected the growth and physiology of M. roraima than monoculture. Under the co-existence condition, M. aeruginosa growth was reduced at lower MP concentration and increased at higher concentrations. The oxidative stress increased at higher MP concentrations. Nanoplastic exposure experiments revealed that nano-plastics also have impacts on M. roraima and M. aeruginosa growth and physiology. Fieldwork found that almost all the freshwater resources we tested were contaminated with microplastics.