Synergistic effects of a cellulase-producing Micromonospora carbonacea and an antibiotic-producing Streptomyces violascens on the suppression of Phytophthora cinnamomi root rot of Banksia grandis

Khaled A. El-Tarabily, Melissa L. Sykes, Ipek D. Kurtböke, Giles E.St J. Hardy, Aneli M. Barbosa, Robert F.H. Dekker

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

Three polyvalent Streptomyces phages were used to isolate four Micromonospora species (M. carbonacea, M. chalcea, M. purpureochromogenes, and M. inositola) from mine-site rhizosphere soils in Western Australia. Streptomyces violascens was isolated using selective isolation techniques from the same soils. The Micromonspora spp. were examined for their ability to produce cellulases. Micromonospora carbonacea, M. chalcea, and M. purpureochromogenes, which were found to produce the enzyme, caused lysis of Phytophthora cinnamomi hyphae. Glasshouse trials showed that the use of the cellulase-producing M. carbonacea isolate, in conjunction with the antibiotic-producing S. violascens isolate, had a synergistic effect on the suppression of the Phytophthora root rot and in promoting growth of Banksia grandis. The importance of using a number of antagonists with different antagonistic abilities to control plant pathogenic fungi is discussed.

Original languageEnglish
Pages (from-to)618-624
Number of pages7
JournalCanadian Journal of Botany
Volume74
Issue number4
DOIs
Publication statusPublished - Apr 1996
Externally publishedYes

Keywords

  • Biological control
  • Cellulases
  • Micromonospora carbonacea
  • Phytophthora cinnamomi
  • Streptomyces violascens

ASJC Scopus subject areas

  • Plant Science

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