This study investigated the physicochemical surface changes of various plastics caused by indigenous communities. The first invading microbes on plastics in 4 different aquatic communities including seawater, freshwater, marine sediments and lake sediments were developed in microcosm incubation experiments. A mixture of weathered plastics (PE, PS, PET) was incubated with different indigenous communities under their respective habitat simulations. All microbial communities were able to form populations on all plastic surfaces with time-dependent development. Biofilm also affected floatation of plastics and the communities on PE foam (PF) were dominated by genera affiliated with plastic and hydrocarbon degraders. The results showed that indigenous populations were able to degrade plastic pieces and utilize them as carbon sources where the weight of PF was reduced more effectively than PS and PET. Besides, carbonyl groups that were seen with FTIR on initial PF disappeared after microbial treatment along with signs of bioerosion on the plastic surface.

这项研究调查了土著社区引起的各种塑料的物理化学表面变化。在缩影培养实验中，开发了在海水，淡水，海洋沉积物和湖泊沉积物等4个不同水生群落中对塑料产生的第一批入侵微生物。在其各自的栖息地模拟下，将风化塑料的混合物（PE，PS，PET）与不同的土著社区进行孵育。所有微生物群落都能够随着时间的发展在所有塑料表面上形成种群。生物膜也影响了塑料的漂浮，PE泡沫（PF）上的群落主要由与塑料和碳氢化合物降解剂相关的属组成。结果表明，土著居民能够降解塑料碎片，并将其用作碳源，从而比PS和PET更有效地降低了PF的重量。此外，在微生物处理后，用FTIR在初始PF上看到的羰基消失了，并且塑料表面上出现了生物侵蚀的迹象。