Sun Hong, Li Hui, Zhan Ya Guang, Li Yang
College of Life Sciences, Northeast Forestry University, Harbin 150040, China.
College of Resources and Environmental Engineering, Anhui University, Hefei 230601, China.
Ying Yong Sheng Tai Xue Bao. 2018 May;29(5):1653-1659. doi: 10.13287/j.1001-9332.201805.036.
The diversity of phyllosphere bacteria is one of the hotspots in the research area of plant-microbial relationship. There are still a lot of controversies in the main factors influencing community structure of phyllosphere bacteria. In this study, the phyllosphere bacterial community structure of Osmanthus fragrans and Nerium indicum grown in three habitats was investigated based on high-throughput sequencing and the main driving factors were examined. The results showed that there was no significant difference in phyllosphere bacterial diversity between the two plant species grown in three habitats. For phyllosphere bacterial community of two plant species from three habitats, the dominant phyla were Actinobacteria, Bacteroidetes, Chlamydiae, Cyanobacteria, Firmicutes and Proteobacteria, and the dominant genera included Methylobacterium, Sphingomonas, Hymenobacter, Polaromonas and Spirosoma. The structure of phyllosphere bacterial community was influenced by habitats, host species identity and species-habitat interaction, among which habitat showed the strongest effect.
叶际细菌的多样性是植物 - 微生物关系研究领域的热点之一。在影响叶际细菌群落结构的主要因素方面仍存在诸多争议。本研究基于高通量测序技术，对生长于三种生境中的桂花和夹竹桃的叶际细菌群落结构进行了调查，并探究了主要驱动因素。结果表明，生长于三种生境中的两种植物的叶际细菌多样性无显著差异。对于来自三种生境的两种植物的叶际细菌群落，优势菌门为放线菌门、拟杆菌门、衣原体门、蓝细菌门、厚壁菌门和变形菌门，优势菌属包括甲基杆菌属、鞘氨醇单胞菌属、鞘脂杆菌属、极地单胞菌属和螺菌属。叶际细菌群落结构受生境、宿主物种身份以及物种 - 生境相互作用的影响，其中生境的影响最为强烈。
