Biofilm on the reaf of Zostera marina as the nersary habitat for useful microbes

本研究重点研究了作为沿海地区代表性植物的滨小藻（Zostera marina）的珊瑚礁和芦苇（Phragmites australis）的沉水茎上形成的生物膜中存在的细菌，特别是对有害藻类进行灭藻并进行氮循环的细菌。结果表明，这两种海岸植物都有大量的杀藻细菌和反硝化细菌，这是氮循环的关键细菌种群，这意味着海岸植物作为这两种有用细菌种群的重要神经栖息地。根据这些结果，我可以从微生物生态学的角度提出日本海岸植物、滨竹和南竹形成代表性景观的意义。

This study has focused on the bacteria, especialy the bacteria algicidal on the harmful algae and carrying out the nitrogen cycling, inhabiting in the biofilms formed on the reafs of Zostera marina and on the submerged stems of Phragmites australis, which are both the representative plants of coastal area. The results shows that the both coastal plants housed many algicidal bacteria and denitrifying bacteria, which are the key bacterial population in the nitrogen cycle, meaning the coastarl plants are important as the nersary habitats for the both useful bacterial populations. From the results, I could propose the significance of coastal plants, Z. marina and P. australis forming representative landscape over Japan, from the aspect of microbial ecology.