Elucidation of the mechanism that heterotrophic bacteria induce the growth of the cyanobacterial strain on agar media

2016 Fiscal Year Final Research Report

• Project/Area Number: 26650166
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Ecology/Environment
• Research Institution: Shimane University
• Principal Investigator: HAYASHI Shohei 島根大学, 生物資源科学部, 助教 (20725593)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 共生 / シアノバクテリア / 寒天培地 / 従属栄養細菌

Outline of Final Research Achievements

Synechococcus leopoliensis CCAP1405/1 cannot grow on agar media although the strain can grow in liquid media. However, the strain can grow when co-cultured with heterotrophic bacteria, such as Bacillus subtilis 168, on agar media. Supply of sulfide in the cysteine biosynthesis pathway from B. subtilis 168 was suggested for the mechanism. Additionally, B. subtilis 168 determines whether or not to induce the growth of S. leopoliensis CCAP1405/1 depending on its environmental and own conditions.

Free Research Field

微生物生態学