Characterization of Arabidopsis thaliana FLAVONOL SYNTHASE 1 (FLS1) -overexpression plants in response to abiotic stress

Nguyen Hoai Nguyen, Jun Hyeok Kim, Jaeyoung Kwon, Chan Young Jeong, Wonje Lee, Dongho Lee, Suk Whan Hong, Hojoung Lee

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)


Flavonoids are an important group of secondary metabolites that are involved in plant growth and contribute to human health. Many studies have focused on the biosynthesis pathway, biochemical characters, and biological functions of flavonoids. In this report, we showed that overexpression of FLS1 (FLS1-OX) not only altered seed coat color (resulting in a light brown color), but also affected flavonoid accumulation. Whereas fls1-3 mutants accumulated higher anthocyanin levels, FLS1-OX seedlings had lower levels than those of the wild-type. Besides, shoot tissues of FLS1-OX plants exhibited lower flavonol levels than those of the wild-type. However, growth performance and abiotic stress tolerance of FLS1-OX, fls1-3, and wild-type plants were not significantly different. Taken together, FLS1 can be manipulated (i.e., silenced or overexpressed) to redirect the flavonoid biosynthetic pathway toward anthocyanin production without negative effects on plant growth and development.

Original languageEnglish
Pages (from-to)133-142
Number of pages10
JournalPlant Physiology and Biochemistry
Publication statusPublished - 2016 Jun 1


  • Abiotic stress
  • Abscisic acid (ABA)
  • Anthocyanin
  • Arabidopsis thaliana
  • FLS1
  • Flavonol

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science


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