Recent studies demonstrated that plastic degradation in superworms is related to the gut microbiota. To determine whether the biodegradation and gut-microbiota were influenced by ingested plastic polymerization types, foams of polypropylene (PP), polyurethane (PU) and ethylene vinyl acetate (EVA) were selected as representatives of polyolefins, polyester and copolymers, and the sole feedstock for superworms for 45 d. Both growth and survival rates of superworms were influenced by the type of plastic diet. Although the total consumptions of EVA- and PP-fed groups were similar at 29.03 ± 0.93 and 28.89 ± 1.14 mg/g-larva, which were both significantly higher than that of PU-fed groups (21.63 ± 2.18 mg/g-larva), the final survival rates of the EVA-fed group of 36.67 ± 10.41% exhibited significantly lower than that of the PP- and PU-fed groups of 76.67 ± 2.89% and 75.00 ± 7.07%, respectively, and even the starvation group of 51.67 ± 10.93%. The Illumina MiSeq results revealed similarities in the dominant gut bacterial communities between PU- and EVA-fed groups, with an increase in relative abundance of , but significant differences from the PP-fed groups, which had two predominant genera of unclassified Enterobacteriaceae and . Compared to bran-fed groups, changes in gut fungal communities were similar across all plastics-fed groups, with an increase in the dominant abundance of . The abundance of increased in the order of polyolefin, polyester, and copolymer. In summary, plastic ingestion, larval growth, and changes in gut bacterial and fungal community of superworms were all influenced by foam diets of different polymerization types, and especially influences on the gut microbiomes were different from each other.

中文翻译：

---

聚合类型对 Zophobas atratus 幼虫摄入塑料和生物降解的影响，以及肠道细菌和真菌微生物组的演替

最近的研究表明，超级蠕虫的塑料降解与肠道微生物群有关。为了确定生物降解和肠道微生物群是否受到摄入的塑料聚合类型的影响，选择聚丙烯（PP）、聚氨酯（PU）和乙烯醋酸乙烯酯（EVA）泡沫作为聚烯烃、聚酯和共聚物的代表以及唯一原料超级蠕虫45天。超级蠕虫的生长和存活率都受到塑料饮食类型的影响。尽管 EVA 和 PP 喂养组的总消耗量相似，分别为 29.03 ± 0.93 和 28.89 ± 1.14 mg/g-幼虫，但均显着高于 PU 喂养组（21.63 ± 2.18 mg/g-幼虫） ，EVA喂养组的最终存活率为36.67±10.41％，显着低于PP和PU喂养组的76.67±2.89％和75.00±7.07％，甚至饥饿组的51.67 ±10.93%。 Illumina MiSeq 结果揭示了 PU 和 EVA 喂养组之间主要肠道细菌群落的相似性，相对丰度有所增加，但与 PP 喂养组存在显着差异，PP 喂养组有两个主要属的未分类肠杆菌科和 。与麸皮喂养组相比，所有塑料喂养组肠道真菌群落的变化相似，主要丰度有所增加。丰度按聚烯烃、聚酯、共聚物的顺序增加。综上所述，超级蠕虫的塑料摄入、幼虫生长以及肠道细菌和真菌群落的变化均受到不同聚合类型的泡沫饲料的影响，尤其是对肠道微生物组的影响各不相同。