摘要
【Abstract】 Hawksbill sea turtles (Eretmochelys imbricata) are important for maintaining healthy coral reef ecosystems currently qualify as “critically endangered” by the IUCN. Their gut microbiota is closely linked to host nutrition and health, however, the gut microbiota of hawksbill sea turtles from a natural reserve remains unclear. Therefore, exploring their microbial community structure in a natural reserve may provide valuable information on strategies for protecting this species. In this study, we investigated hawksbill sea turtle fecal microbial communities from a natural reserve using 16S metagenomics and compared the gut microbiota from fecal samples of hawksbill and green sea turtles (Chelonia mydas). The results indicated that the structure of fecal microbial communities was significantly different between hawksbill and green sea turtles. In hawksbill sea turtles, the three dominant phyla were Bacteroidetes, Firmicutes, and Fusobacteria, whereas the fecal microbial communities of green sea turtles were mainly composed of Firmicutes, Bacteroidetes, and Proteobacteria. Among the hawksbill sea turtle fecal microbes, the predominant genera were Cetobacterium and Rikenell, whereas in green sea turtles, the predominant genera were Bacteroides and Paludibacter. In addition, predictive metagenomic analysis indicated that sugar catabolism was enriched in green sea turtle fecal microbiota, whereas pathways related to secondary metabolite production were enriched in hawksbill sea turtle fecal microbiota. Our study provides preliminary data on the fecal microbiota features of sea turtles from the natural reserve, which may contribute to the management of the food requirements and long-term conservation of hawksbill sea turtles.
摘要译文
【摘要】hawksbill海龟（Eretmochelys imbricata）对于维持健康的珊瑚礁生态系统至关重要，目前有资格被IUCN“极度濒危”。他们的肠道菌群与宿主的营养和健康密切相关，但是，霍克斯比尔海龟的肠道菌群尚不清楚。因此，在自然储备中探索其微生物社区结构可能会提供有关保护该物种的策略的宝贵信息。在这项研究中，我们研究了使用16S元基因组学的天然储备中的鹰海龟粪便微生物群落，并比较了鹰鸟和绿海龟（Chelonia mydas）的粪便样品的肠道微生物群。结果表明，霍克斯比尔和绿海龟之间的粪便微生物群落的结构显着差异。在鹰海龟中，三个主要的门是细菌植物，坚硬和梭菌，而绿海龟的粪便微生物群落主要由企业，细菌植物和蛋白质菌组成。在鹰海龟粪便微生物中，主要的属是杆菌和瑞克内尔，而在绿海龟中，主要的属属属是杆菌和pal。此外，预测性宏基因组分析表明，糖的分解代谢富集在绿海龟粪便微生物群中，而与继发代谢物产生有关的途径富含鹰龟粪粪菌群。我们的研究提供了有关自然储备中海龟的粪便菌群特征的初步数据，这可能有助于管理食品需求和长期保护鹰队海龟。
Yuan Chen [1];Zhongrong Xia [2];Hongwei Li (0000-0001-9993-6607) [3];. Comparative analysis of the fecal bacterial communities of hawksbill sea turtles (Eretmochelys imbricata) and green sea turtles (Chelonia mydas)[J]. FEMS Microbiology Letters, 2022,369(1)