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Phytol-containing seaweed extracts as control for Ganoderma boninense


Citation

Abdul Aziz, Syamimi Diyana and Jafarah, Nur Fazirah and Balia Yusof, Zetty Norhana (2019) Phytol-containing seaweed extracts as control for Ganoderma boninense. Journal of Oil Palm Research, 31 (2). pp. 238-247. ISSN 1511-2780; ESSN: 2811-4701

Abstract

Basal stem rot (BSR) is a disease in oil palm caused by a fungal pathogen, Ganoderma boninense. Utilisation of seaweeds as a control agent has not been explored. This study investigated the anti-fungal potential of Malaysian seaweed extracts against G. boninense and identification of the compounds. Seaweeds cfSargassum oligocystum, Caulerpa racemosa, Caulerpa racemosa var. lamouroxii and cfHalimeda macrophysa were collected and subjected to crude extraction with various solvents. Methanolic extracts of all species displayed the highest yield with an average of 15.25% compared to dry weight. Anti-fungal assays were carried out against G. boninense using the poisoned food technique and three highest inhibitions were exhibited by C. racemosa var. lamouroxii dichloromethane extract (46.82%), cf H. macrophysa dichloromethane extract (33.49%) and C. racemosa methanol extract (28.06%). Dominant compounds detected via gas chromatography-mass chromatography (GC-MS) in extracts with anti-fungal potential includes phytol. Anti-fungal assay using standard phytol showed growth inhibition of G. boninense of up to 21% inhibition. Caulerpa racemosa var. lamouroxii, cf H. macrophysa, C. racemosa and cf S. oligocystum dichloromethane extracts contain 474, 117, 106 and 19 mg litre-1 of phytol respectively. These findings suggested that Malaysian seaweeds are a good source of anti-fungal compounds for utilisation in controlling the BSR disease of oil palm in Malaysia.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Institute of Bioscience
DOI Number: https://doi.org/10.21894/jopr.2019.0018
Publisher: Malaysian Palm Oil Board
Keywords: Anti-fungal activity, Basal stem rot disease, Ganoderma boninense, Phytol, Seaweeds.
Depositing User: Ms. Nur Faseha Mohd Kadim
Date Deposited: 14 Dec 2022 07:51
Last Modified: 14 Dec 2022 07:51
URI: http://psasir.upm.edu.my/id/eprint/81742
Statistic Details: View Download Statistic

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