Accumulation of apocarotenoids in mycorrhizal roots of leek (Allium porrum)

Colonization of leek roots by the mycorrhizal fungus Glomus intraradices resulted in the accumulation of an apocarotenoid mixture consisting of cyclohexenone and mycorradicin derivatives. The prevailing cyclohexenone derivatives are identified as glycosides and acylglycosides of blumenol C and related aglycones.