Mao Pan, Wang Yan, Li Lingling, Ji Shunshi, Li Peijing, Liu Lingyun, Chen Jinni, Sun Hui, Luo Xia, Ye Changyun
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
Microorganisms. 2023 Aug 27;11(9):2166. doi: 10.3390/microorganisms11092166.
is an important pathogen that can cause listeriosis. Despite the growing recognition of spp. as a foodborne and environmental pathogen, the understanding of its prevalence and characteristics of spp. in the marine environment remains unknown. In this study, we first investigated the genetic and phenotypic characteristics of species isolated in a coastal city in China. The findings revealed that the sequence type 87 (ST87) , a prevalent clinical and seafood strain in China, dominates in recreational beach sands and possesses a notable biofilm-forming capacity in seawater. The presence of ST87 in coastal environments indicates the potential health risks for both recreational activities and seafood consumption. Moreover, the ST121 isolates from sand had a versatile plasmid encoding multifunctional genes, including for UV resistance, for salt resistance, and for oxidative resistance and multiple transposases, which potentially aid in survival under natural environments. Black-headed gulls potentially facilitate the spread of , with similar ST35 strains found in gulls and beach sand. As a reservoir of microbes from marine environments and human/animal excrement, coastal sand would play an important role in the spread of and is an environmental risk for human listeriosis.
是一种可导致李斯特菌病的重要病原体。尽管人们越来越认识到[菌名]属是一种食源性和环境性病原体，但对其在海洋环境中的流行情况和特征的了解仍然未知。在本研究中，我们首先调查了在中国一个沿海城市分离出的[菌名]物种的遗传和表型特征。研究结果表明，序列型87（ST87）[菌名]，一种在中国流行的临床和海鲜菌株，在休闲海滩沙子中占主导地位，并且在海水中具有显著的生物膜形成能力。沿海环境中存在ST87[菌名]表明休闲活动和食用海鲜都存在潜在的健康风险。此外，从沙子中分离出的ST121菌株具有一个多功能质粒，编码包括抗紫外线、抗盐和抗氧化的基因以及多个转座酶，这可能有助于在自然环境中生存。黑头鸥可能促进[菌名]的传播，在海鸥和海滩沙子中发现了相似的ST35菌株。作为来自海洋环境和人类/动物粪便的微生物库，沿海沙子在[菌名]的传播中起着重要作用，并且是人类李斯特菌病的一个环境风险因素。
