Sun Yi, Li Hongjun, Zhang Jinyong, Wang Haining, Cui Xiaoyu, Gao Xin, Qiao Wenwen, Yang Yuyi
State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian 116023, China.
State Environmental Protection Key Laboratory of Coastal Ecosystem, National Marine Environmental Monitoring Center, Dalian 116023, China.
Mar Pollut Bull. 2024 Jan;198:115894. doi: 10.1016/j.marpolbul.2023.115894. Epub 2023 Dec 14.
A lot of plastic floats are presented in the kelp cultivation zone, enabling us to effectively evaluate the differences between surface water (SW) and plastic-attached (PA) microbial communities. In this study, we explored the microbial communities (both bacteria and protists) in SW and PA niches during the kelp cultivation activities. Effects of habitat niches on the diversity and composition of microbial communities were found. Beta partitioning and core taxa analyses showed species turnover and local species pool governed the microbial community assembly, and they contributed more to bacteria and protists, respectively. Based on the results of null model, bacterial communities presented a more deterministic and homogeneous assembly compared to protistan communities. Moreover, microbial communities in PA niche had higher species turnover and homogenizing assembly compared to the SW niche. The results of this study supplemented the theory of microbial community assembly and expanded our understanding of protists in plastisphere.
海带养殖区出现了大量塑料浮子，这使我们能够有效评估地表水（SW）和附着塑料（PA）的微生物群落之间的差异。在本研究中，我们探索了海带养殖活动期间SW和PA生态位中的微生物群落（细菌和原生生物）。发现了栖息地生态位对微生物群落多样性和组成的影响。β划分和核心分类群分析表明，物种周转和本地物种库分别主导了细菌和原生生物的微生物群落组装。基于空模型的结果，与原生生物群落相比，细菌群落呈现出更具确定性和同质性的组装。此外，与SW生态位相比，PA生态位中的微生物群落具有更高的物种周转和同质化组装。本研究结果补充了微生物群落组装理论，并扩展了我们对塑料球上原生生物的理解。
