Study of the ecology of Pyropia yezoensis-symbiotic bacteria and coexistence mechanism in aquaculture environments

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18730
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Aquatic bioproduction science
• Research Institution: Fisheries Research and Education Agency
• Principal Investigator: Fukui Youhei 国立研究開発法人水産研究・教育機構, 中央水産研究所, 研究員 (40565561)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: スサビノリ / 共生細菌 / 細菌叢 / ノリ養殖環境 / 共存機構

Outline of Final Research Achievements

The aim of this study is to elucidate the ecology of Pyropia yezoensis-symbiotic bacteria and the bacterial communities in aquaculture environments of P. yezoensis, and to understand the coexistence mechanism between P. yezoensis and bacterial communities in the aquaculture environments. In this study, we revealed the changes of predominant bacterial communities and the presence of ubiquitous bacteria in samples of seawater and P. yezoensis over two years, using culture and DNA/RNA clone library methods. Furthermore, co-cultivation of P. yezoensis and aquaculture seawater in laboratory experiments provided the information on the bacterial communities closely associated with P. yezoensis.

Free Research Field

環境微生物学