Molecular basis of host regulation by symbiotic Spiroplasma

2015 Fiscal Year Final Research Report

• Project/Area Number: 25450492
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Insect science
• Research Institution: National Institute of Agrobiological Sciences
• Principal Investigator: Kageyama Daisuke 国立研究開発法人農業生物資源研究所, 昆虫微生物機能研究ユニット, 主任研究員 (60401212)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: スピロプラズマ

Outline of Final Research Achievements

During the process of searching for suitable Spiroplasma strains for research from nature, I found a Spiroplasma strain from a predatory flower bug of the genus Orius. This Spiropalsma strains was found cultivable in liquid as well as solid artificial media. I found some interesting features of proliferation that differ according to the different culture conditions-i.e., within insects, in the liquid medium, and on the solid medium, which requires further research. Attempt to extract plasmid genome following mass culture failed, probably indicating that this Spiroplasma strain lacks plasmid. On the other hand, a male-killing Spiroplasma strain derived from a lacewing of the genus Mallada was not cultivable under the above conditions, reflecting the differences in the nutritional requirements and/or degree of intimacy with insects.

Free Research Field

共生微生物