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Transcriptional response of oil palm (Elaeis guineensis Jacq.) inoculated simultaneously with both Ganoderma boninense and Trichoderma harzianum


Citation

Ho, Chai Ling and Tan, Yung Chie and Yeoh, Keat Ai and Lee, Wei Kang and Ghazali, Ahmad Kamal and Yee, Wai Yan and Hoh, Chee Choong (2018) Transcriptional response of oil palm (Elaeis guineensis Jacq.) inoculated simultaneously with both Ganoderma boninense and Trichoderma harzianum. Plant Gene, 13. 56 - 63. ISSN 2352-4073

Abstract

Application of beneficial microbes offers an environmentally friendly alternative for mitigation of basal stem rot (BSR) disease in oil palm. However, the biocontrol mechanisms of Trichoderma against the pathogenic Ganoderma spp. which cause BSR are largely unknown at the molecular level. To identify the transcripts involved during induced systemic resistance (ISR), we analyzed the root transcriptomes of oil palm seedlings inoculated simultaneously with both G. boninense and T. harzianum, and un-inoculated oil palm seedlings, as well as those that were inoculated with either pathogenic or beneficial fungi. Our analyses revealed that the biocontrol mechanisms of T. harzianum against G. boninense involve modulation of genes related to biosynthesis of phytohormones (ethylene, MeJA and MeSA), antioxidant (l-ascorbate and myo-inositol) and unique secondary metabolites such as momilactone, cell wall metabolisms, and detoxification of phytotoxic compounds; in addition to its role as a biofertilizer which improves nutritional status of host plant. The outcomes of this study have fueled our understanding on the biocontrol mechanisms involving T. harizianum against G. boninense infection in oil palm roots.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Institute of Plantation Studies
Institute of Tropical Agriculture
DOI Number: https://doi.org/10.1016/j.plgene.2018.01.003
Publisher: Elsevier
Keywords: Ganoderma; Global gene expression; Induced resistance; Oil palm; Trichoderma
Depositing User: Nida Hidayati Ghazali
Date Deposited: 17 Apr 2020 15:19
Last Modified: 17 Apr 2020 15:19
Altmetrics: https://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.plgene.2018.01.003
URI: http://psasir.upm.edu.my/id/eprint/74329
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