45. ゼニゴケが生産するストリゴラクトンの解析(口頭発表,植物化学調節学会第46回大会)

概要

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At the previous meeting, we reported that Physcomitrella patens subsp. patens, a bryophyte which is a basal lineage of land plants, produces strigolactones (SLs). In the present study, strigolactones produced by Marchantia polymorpha L. which is evolutionary most apart from angiosperms, were examined. Marchantia was grown on 1/2 B5 solid media for 10, 15, 20, 25, 30, 35 and 40 days, and extracted with ethyl acetate, respectively. Characterization of SLs in these extracts was conducted by comparing retention times of germination stimulants on reversed phase HPLC with those of synthetic and/or natural standards and by using LC-MS/MS. LC-MS/MS analyses confirmed the presence of SLs in Marchantia extracts, and identified solanacol, two orobanchol isomers, 2'-epiorobanchyl acetate, fabacyl acetate and 5-deoxystrigol. These results indicate that strigolactones appeared when plants first colonized land.
2011-10-03