Enhancement of biocontrol activity of antagonistic Chryseobacterium Strain KJ1R5 by adding carbon sources against Phytophthora capsici

Yu Seok Kim, Bora Jang, Ill Min Chung, Mee Kyung Sang, Han Mo Ku, Ki Deok Kim, Se Chul Chun

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Carbon utilization by Chryseobacterium strain KJ1R5 was studied to enhance its biocontrol activity against Phytophthora capsici. Chryseobacterium strain KJ1R5 has previously been shown to control Phytophthora blight of pepper (Capsicum annuum L.). Strain KJ1R5 could utilize carbon sources such as L-arabinose, D- cellobiose, β-lactose and D-galactose well. P. capsici could utilize D-glucose well, showing the absorbencies ranged from 0.577 to 0.767 at 600nm. When 2% L- arabinose, which could only be utilized by the biocontrol strain KJ1R5, was amended into the bacterial suspension, the efficacy of biological control increased. Among the amendments of various carbon sources into bacteria] suspension, L-arabinose and D-(+)-glucose significantly enhanced biological control activity, resulting in a reduction of disease incidence to 6.9%, compared to 21.9% for the strain KJ1R5 alone and 81.3% for P. capsici inoculation alone, indicating that amendment with specific carbon sources could increase the biological control activity.

Original languageEnglish
Pages (from-to)164-170
Number of pages7
JournalPlant Pathology Journal
Volume24
Issue number2
DOIs
Publication statusPublished - 2008 Dec 1

Fingerprint

Chryseobacterium
Phytophthora capsici
biological control
arabinose
carbon
glucose
cellobiose
Phytophthora
Capsicum annuum
blight
pepper
galactose
disease incidence
lactose
bacteria

Keywords

  • Antagonistic bacteria
  • Biological control
  • Chryseobacterium
  • Phythophthora blight

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Enhancement of biocontrol activity of antagonistic Chryseobacterium Strain KJ1R5 by adding carbon sources against Phytophthora capsici. / Kim, Yu Seok; Jang, Bora; Chung, Ill Min; Sang, Mee Kyung; Ku, Han Mo; Kim, Ki Deok; Chun, Se Chul.

In: Plant Pathology Journal, Vol. 24, No. 2, 01.12.2008, p. 164-170.

Research output: Contribution to journalArticle

Kim, Yu Seok ; Jang, Bora ; Chung, Ill Min ; Sang, Mee Kyung ; Ku, Han Mo ; Kim, Ki Deok ; Chun, Se Chul. / Enhancement of biocontrol activity of antagonistic Chryseobacterium Strain KJ1R5 by adding carbon sources against Phytophthora capsici. In: Plant Pathology Journal. 2008 ; Vol. 24, No. 2. pp. 164-170.
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