Paenibacillus pabuli strain P7S promotes plant growth and induces anthocyanin accumulation in Arabidopsis thaliana

Cao Son Trinh, Chan Young Jeong, Won Je Lee, Hai An Truong, Namhyun Chung, Juhyeong Han, Suk Whan Hong, Hojoung Lee

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


In this study, a novel plant growth-promoting rhizobacteria (PGPR), the bacterial strain Paenibacillus pabuli P7S (PP7S), showed promising plant growth-promoting effects. Furthermore, it induced anthocyanin accumulation in Arabidopsis. When co-cultivated with PP7S, there was a significant increase in anthocyanin content and biomass of Arabidopsis seedlings compared with those of the control. The quantitative reverse transcription-polymerase chain reaction analysis revealed higher expression of many key genes regulating anthocyanin and flavonoid biosynthesis pathways in PP7S-treated seedlings when compared with that of the control. Furthermore, higher expression of pathogen-related genes and microbe-associated molecular pattern genes was also observed in response to PP7S, indicating that the PGPR triggered the induced systemic response (ISR) in A. thaliana. These results suggest that PP7S promotes plant growth in A. thaliana and increases anthocyanin biosynthesis by triggering specific ISRs in plant.

Original languageEnglish
Pages (from-to)264-272
Number of pages9
JournalPlant Physiology and Biochemistry
Publication statusPublished - 2018 Aug

Bibliographical note

Funding Information:
Financial support for this work was provided through a grant from the Korea Institute of Planning and Evaluation for Technology in Food, Agriculture, Forestry and Fisheries (to H.L., 2016; grant # 2016-116118-3 ).

Publisher Copyright:
© 2018 Elsevier Masson SAS


  • Anthocyanin
  • Arabidopsis thaliana
  • CyclinB1
  • PGPR
  • Paenibacillus pabuli P7S

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science


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