INRA, UMR CARRTEL, 75 av de Corzent, F-742003 Thonon-les-Bains, France.
Mar Pollut Bull. 2013 Jan 15;66(1-2):39-46. doi: 10.1016/j.marpolbul.2012.11.015. Epub 2012 Dec 4.
Mangroves are threatened ecosystems that provide numerous ecosystem services, especially through their wide biodiversity, and their bioremediation capacity is a challenging question in tropical areas. In a mangrove in Mayotte, we studied the potential role of microbial biofilm communities in removing nutrient loads from pre-treated wastewater. Microbial community samples were collected from tree roots, sediments, water, and from a colonization device, and their structure and dynamics were compared in two areas: one exposed to sewage and the other not. The samples from the colonization devices accurately reflected the natural communities in terms of diversity. Communities in the zone exposed to sewage were characterized by more green algae and diatoms, higher bacteria densities, as well as different compositions. In the area exposed to sewage, the higher cell densities associated with specific diversity patterns highlighted adapted communities that may play a significant role in the fate of nutrients.
红树林是受到威胁的生态系统，提供了众多生态系统服务，特别是通过其广泛的生物多样性，以及它们的生物修复能力是热带地区的一个具有挑战性的问题。在马约特的一个红树林中，我们研究了微生物生物膜群落从预处理废水中去除营养负荷的潜力。从树根、沉积物、水和定植装置中采集微生物群落样本，并在两个区域（一个暴露于污水，另一个不暴露于污水）比较它们的结构和动态。定植装置中的样本在多样性方面准确反映了自然群落。暴露于污水的区域中的群落的特征是绿藻和硅藻更多，细菌密度更高，以及不同的组成。在暴露于污水的区域中，与特定多样性模式相关的更高的细胞密度突出了适应的群落，这些群落可能在营养物质的命运中发挥重要作用。
