The Spider Orchid
<i>Caladenia crebra</i>
Produces Sulfurous Pheromone Mimics to Attract its Male Wasp Pollinator
作者:Björn Bohman、Ryan D. Phillips、Gavin R. Flematti、Russell A. Barrow、Rod Peakall
DOI:10.1002/anie.201702864
日期:2017.7.10
We identified floral semiochemicals from Caladenia (spider orchids) for the first time. We further demonstrate that C. crebra attracts its single pollinator species with a unique system of (methylthio)phenols, three of which are new natural products. Furthermore, as predicted, the same compounds constitute the sex pheromone of the pollinator, the thynnine wasp Campylothynnus flavopictus, representing
最有趣的自然观察之一是通过性欺骗对兰花进行授粉。兰花与其性吸引的雄性昆虫授粉媒介之间的相互作用是化学物质的基础,其中涉及的信号传导化合物称为化学信息素,预计可以模仿性信息素的化学成分。我们首次从Caladenia(蜘蛛兰花)中鉴定了花卉化学信息素。我们进一步证明,C。crebra以独特的(甲硫基)苯酚系统吸引其单个传粉昆虫,其中三个是新的天然产物。此外,正如预测的那样,相同的化合物构成了授粉媒介的性信息素,即胸腺黄蜂(Campylothynnus flavopictus),代表膜翅目中首次出现含硫性信息素。