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

    54 Citations (Scopus)

    Abstract

    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
    Volume103
    DOIs
    Publication statusPublished - 2016 Jun 1

    Bibliographical note

    Funding Information:
    We would like to thank Dr. Christoph Ringli (Institute of Plant Biology, University of Zürich) for donating the fls1-3 mutant seeds. This work was supported by a grant from the Institute of Life Science and Natural Resources, Korea University (to Hojoung Lee and Jun Hyeok Kim, 2013).

    Publisher Copyright:
    © 2016 Elsevier Masson SAS.

    Keywords

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

    ASJC Scopus subject areas

    • Physiology
    • Genetics
    • Plant Science

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