Characterisation of coral-associated bacterial communities in an urbanised marine environment shows strong divergence over small geographic scales
Characterisation of coral-associated bacterial communities in an urbanised marine environment shows strong divergence over small geographic scales
复制标题
城市化海洋环境中珊瑚相关细菌群落的特征在小地理范围内表现出巨大差异
DOI：
10.1007/s00338-019-01837-1
复制
发表时间：
2019
期刊：
影响因子：
3.5
通讯作者：
Danwei Huang
中科院分区：
文献类型：
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作者：
Benjamin J. Wainwright;L. Afiq;Geoffrey L. Zahn;Danwei Huang
珊瑚全息生物包含一个多样化的细菌群落，这些细菌被广泛认为是维持宿主健康和促进珊瑚礁在不断变化的环境下恢复能力的主要贡献者。然而，人们对这些群落的空间分布以及形成这些模式的过程和机制知之甚少。在这里，我们展示了与造礁珊瑚（Pocillopora acuta）相关的细菌群落，来自城市化珊瑚礁生态系统（新加坡）的九个近海岛屿，可以急剧分化，并且在采样地点之间存在显着差异。我们认为，小尺度的环境因素，如盛行的地表水流和风向，甚至在短距离（< 1公里）内，都是产生细菌群落结构的原因。考虑到我们在不同地点观察到的细菌群落之间的明显差异，我们建议未来的珊瑚礁恢复项目考虑珊瑚全息体的微生物方面，因为这可能会影响珊瑚移植在受体种群中的成功。
The coral holobiont contains a diverse community of bacteria that have been widely acknowledged as a major contributor in the maintenance of host health and in promoting reef resilience under changing environments. However, little is known regarding the spatial distribution of these communities or the processes and mechanisms that are responsible for creating these patterns. Here we show that bacterial communities associated with the reef-building coral, Pocillopora acuta, from nine offshore islands in an urbanised coral reef ecosystem (Singapore) can diverge sharply and are significantly different among sampling locations. We suggest that small-scale environmental factors such as prevailing surface currents and wind direction, even over short distances (< 1 km), are responsible for generating bacterial community structure. Considering the sharp differentiation we observe among bacterial communities from different sites, we recommend that future coral reef restoration projects consider the microbial aspect of the coral holobiont as this may affect the success of coral transplants in recipient populations.