Microbial diversity studies of Arabian Sea sediment

Marine ecosystems are distinctive ecological niche, with a variety of microbes playing important roles in nutrient recycling and other ecological processes, thereby requiring a thorough exploration of their microflora. Similarly Arabian Sea sediments are hotspots for microbial diversity and therefore requires a detailed investigation. Bacterial diversity profiles of marine metagenome were brought to light by the present studies based on Illumina sequencing trageting the V3 regions of 16S rRNA gene, revealing the roles of different bacteria in nutrient cycling and organic matter degradation. The analysis also revealed the existence of many unknown sequences, indicating a large untapped bacterial diversity in these areas.海洋生态系统属于独特的生态位（ecological niche），各类微生物在营养循环及其他生态过程中发挥着重要作用，因此亟需对其微生物区系（microflora）开展全面探索。阿拉伯海沉积物同样是微生物多样性的热点区域，故而需要进行细致深入的研究。本研究基于靶向16S rRNA基因（16S rRNA gene）V3区的Illumina测序（Illumina sequencing）技术，对海洋宏基因组（metagenome）的细菌多样性特征进行了解析，阐明了不同细菌在营养循环与有机质降解过程中的功能。分析结果同时还发现了大量未知序列，表明该区域存在大量尚未被发掘的细菌多样性资源。