Proposals for definition of strigolactones and description of stereochemistry in biological activities

2016 Fiscal Year Final Research Report

• Project/Area Number: 26850069
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Bioorganic chemistry
• Research Institution: Utsunomiya University
• Principal Investigator: XIE Xiaonan 宇都宮大学, バイオサイエンス教育研究センター, 助教 (30610323)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: ストリゴラクトン / 立体化学

Outline of Final Research Achievements

Strigolactones (SLs) are carotenoid-derived signaling molecules that mediate symbiotic and parasitic communications in the rhizosphere and plant hormones that regulate the growth and development of plants through crosstalk with other hormones. Natural SLs are classified into two groups based on the stereochemistry of the B－C ring junction. In angiosperms, rice and cucumber produce orobanchol-type SLs, while cotton and strawberry produce strigol-type SLs. By contrast, Chinese milk vetch is a producer of both types of SLs. Tobacco plants also produce both types of SLs, and the ratio of orobanchol- to strigol-type SLs significantly differ between cultivars. In this study, we demonstrate that such species-specific phenomena in SL production also occur in the transport of exogenous SLs from roots to shoots.

Free Research Field

天然物有機化学