The antagonistic effect of phenolic compounds on ligninolytic and cellulolytic enzymes of Ganoderma boninense, causing basal stem rot in oil palm

Arthy Surendran, Yasmeen Siddiqui*, Halimi Mohd Saud, Nusaibah Syd Ali, Sivakumar Manickam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Ganoderma sp. is a white-rot fungus and the causal pathogen of basal stem rot (BSR) in oil palm. To identify a potential chemical control for Ganoderma, ten naturally occurring plant phenolic compounds, namely benzoic acid, curcumin, 2,6-dimethoxyl benzoic acid, 2,6-dimethoxyl phenol, guaiacol, ferulic acid, pyrocatechol, salicylic acid, syringic acid and vanillic acid were assessed for their antagonistic effect on Ganoderma as well their effect on the secretion of wood-degrading enzymes. Mycelial inhibition was dose dependent in each experiment and ranged from 4.4% to 100%. All the phenolic compounds except ferulic acid completely inhibited the growth of Ganoderma in a 'poisoned food' test using the range of concentrations that were tested. However, liquid media cultures containing low concentrations of phenolic compounds showed increased biomass production. Microscopic observations revealed that mycelia growing on media containing phenolic compounds showed deterioration. A significant decrease in the production of ligninolytic enzymes, as well as cellulose, amylase and xylanase was identified. The in vitro tests revealed that benzoic acid had the greatest inhibitory effect. The selected phenolic compounds inhibited the growth as well as the production of wood degrading enzymes indicating their potential use as chemical controls against Ganoderma for disease management of BSR.

Original languageEnglish
Pages (from-to)1437-1446
Number of pages10
JournalInternational Journal of Agriculture and Biology
Volume19
Issue number6
DOIs
Publication statusPrint publication - 2017
Externally publishedYes

Bibliographical note

Funding Information:
The authors thank the Ministry of Science and Technology and Innovation (MOSTI) Malaysia, for providing financial support under the project Science fund (02-01-04-SF1904) and University Putra Malaysia.

Publisher Copyright:
© 2017 Friends Science Publishers.

Keywords

  • Basal stem rot
  • Cellulolytic enzymes
  • Ganoderma
  • Ligninolytic enzymes
  • Phenolic compounds

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