Root-endophytic Chaetomium cupreum chemically enhances aluminium tolerance in via increasing the aluminium detoxicants, chlorogenic acid and oosporein

Haruma, Toshikatsu*  ; Yamaji, Keiko*; Ogawa, Kazuyoshi*; Masuya, Hayato*; Sekine, Yurina   ; Kozai, Naofumi   

Miscanthus sinensis Andersson is a pioneer plant species that grows naturally at mining sites. can detoxify aluminium (Al) by producing phytosiderophores. Root-endophytic Chaetomium cupreum, which produces microbial siderophores, enhances Al tolerance in M. sinensis. We identified the siderophore produced by C. cupreum as oosporein. It was revealed that oosporein could detoxify Al. Inoculation test of C. cupreum onto M. sinensis in acidic mine soil showed that C. cupreum promoted seedling growth, and enhanced Al tolerance.