Abstract

Basal stem rot due to a fungal pathogen, Ganoderma boninense, is one of the most devastating diseases in oil palm throughout the major palm oil producer countries. This study investigated the potential of polypore fungi as biological control agents against pathogenic G. boninense in oil palm. In vitro antagonistic screening of selected non-pathogenic polypore fungi was performed. Based on in planta fungi inoculation on oil palm seedlings, eight of the 21 fungi isolates tested (GL01, GL01, RDC06, RDC24, SRP11, SRP12, SRP17, and SRP18) were non-pathogenic. In vitro antagonistic assays against G. boninense revealed that the percentage inhibition of radial growth (PIRG) in dual culture assay for SRP11 (69.7%), SRP17 (67.3%), and SRP18 (72.7%) was relatively high. Percentage inhibition of diameter growth (PIDG) in volatile organic compounds (VOCs) in dual plate assay of SRP11, SRP17, and SRP18 isolates were 43.2%, 51.6%, and 52.1%, respectively. Molecular identification using the internal transcribed spacer gene sequences of SRP11, SRP17, and SRP18 isolates revealed that they were Fomes sp., Trametes elegans, and Trametes lactinea, respectively.

Details

Title
Exploring the potential of Bornean polypore fungi as biological control agents against pathogenic Ganoderma boninense causing basal stem rot in oil palm
Author
Darlis, Darwana 1 ; Jalloh, Mohamadu Boyie 1   VIAFID ORCID Logo  ; Chin, Clament Fui Seung 1   VIAFID ORCID Logo  ; Basri, Noor Khairani Mohamad 1 ; Besar, Normah Awang 2   VIAFID ORCID Logo  ; Ahmad, Khairulmazmi 3   VIAFID ORCID Logo  ; Rakib, Mohd. Rashid Mohd. 1   VIAFID ORCID Logo 

 Universiti Malaysia Sabah, Faculty of Sustainable Agriculture, Sandakan, Malaysia (GRID:grid.265727.3) (ISNI:0000 0001 0417 0814) 
 Universiti Malaysia Sabah, Faculty of Tropical Forestry, Kota Kinabalu, Malaysia (GRID:grid.265727.3) (ISNI:0000 0001 0417 0814) 
 Universiti Putra Malaysia, Department of Plant Protection, Faculty of Agriculture, Serdang, Malaysia (GRID:grid.11142.37) (ISNI:0000 0001 2231 800X) 
Pages
10316
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2829617285
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.