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

• DOI: 10.1371/journal.pone.0212644
• Publication Date: 2019-02-22T19:18:30Z
• Authors: Toshikatsu Haruma; Keiko Yamaji; Kazuyoshi Ogawa; Hayato Masuya; Yurina Sekine; Naofumi Kozai
• Keywords: Miscanthus sinensis; Chlorogenic Acid; Malic acid; Tricarboxylic acid

Miscanthus sinensis Andersson is a pioneer plant species that grows naturally at mining sites. can detoxify aluminium (Al) by producing phytosiderophores, such as chlorogenic acid, citric and malic localizing Al in cell walls. Root-endophytic Chaetomium cupreum, which produces microbial siderophores, enhances tolerance M. sinensis. However, we could not determine whether the siderophores produced C. cupreum actually enhance sinensis, because have yet been identified previous research. The purpose of this study was to clarify how chemically increases under acidic site conditions, especially considering siderophores. Using instrumental analyses, siderophore oosporein. Comparison stability constant between phytosiderophores oosporein indicated similarly shows higher than acid acid. Inoculation test onto mine soil showed promoted seedling growth, enhanced via inducing chlorogenic-acid production These results suggested might promote growth reducing excessive walls, main accumulation. In addition, chemical enhancement be important for adapt