Enhancement of oxidative and drought tolerance in Arabidopsis by overaccumulation of antioxidant flavonoids

The notion that plants use specialized metabolism to protect against environmental stresses needs to be experimentally proven by addressing the question of whether stress tolerance by specialized metabolism is directly due to metabolites such as flavonoids. We report that flavonoids with radical scavenging activity mitigate against oxidative and drought stress in Arabidopsis thaliana. Metabolome and transcriptome profiling and experiments with oxidative and drought stress in wild-type, single overexpressors of MYB12/PFG1 (PRODUCTION OF FLAVONOL GLYCOSIDES1) or MYB75/PAP1 (PRODUCTION OF ANTHOCYANIN PIGMENT1), double overexpressors of MYB12 and PAP1, transparent testa4 (tt4) as a flavonoid-deficient mutant, and…

• UO
  University of North Texas
• JA
  Japan Advanced Plant Science Network
• MO
  Ministry of Education, Culture, Sports, Science and Technology

  Award: CREST
• UB
  Universität Bielefeld
• CU
  Chiba University
• R
  RIKEN
• CR
  Core Research for Evolutional Science and Technology
• SI
  Strategic International Collaborative Research Program