Endogenous suppressor(s) in Arabidopsis thaliana

Thanh Luan Mai, Tatsuhiro Kawasaki, Aprilia Nur Fitrianti, Le Thi Phuong, Tsugumi Shiokawa, Hiroko Tada, Hidenori Matsui, Yoshiteru Noutoshi, Mikihiro Yamamoto, Yuki Ichinose, Tomonori Shiraishi, Kazuhiro Toyoda

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


An ethyl acetate extract of Arabidopsis thaliana plants was tested for the presence of endogenous suppressor(s) (ES), and the active fraction, which partitioned into water phase contained a molecule(s) < 3000 Da based on a rough estimate using sized membrane filters. Foliar application of the ES enabled typically nonpathogenic fungi (non-adapted pathogens) to cause disease symptoms on A. thaliana. Consistently, the ES fraction severely suppressed the oxidative burst and the expression of defense-related genes such as FRK1, NHO1, WRKY22, WRKY29, PEN2, and PEN3 in plants challenged with non-adapted fungus Colletotrichum gloeosporioides or the fungal elicitor chitin.

Original languageEnglish
Pages (from-to)100-106
Number of pages7
JournalJournal of General Plant Pathology
Issue number2
Publication statusPublished - Mar 1 2020


  • Arabidopsis
  • Defense response
  • Endogenous suppressor (ES)
  • Induced susceptibility
  • Mycosphaerella supprescins

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Plant Science


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