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- Comparison of Ganoderma boninense Isolate’s Aggressiveness Using Infected Oil Palm Seedlings
- Mei Lieng Lo , Tu Anh Vu Thanh , Frazer Midot , Sharon Yu Ling Lau , Wei Chee Wong , Hun Jiat Tung , Mui Sie Jee , Mei-Yee Chin , Lulie Melling
- J. Microbiol. 2023;61(4):449-459. Published online April 25, 2023
- DOI: https://doi.org/10.1007/s12275-023-00040-w
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Abstract
- Basal stem rot incidence caused by a white-rot fungus, Ganoderma boninense, is the major disease of oil palm in Southeast Asia. The rate of disease transmission and host damage are affected by variations in pathogen aggressiveness. Several other studies have used the disease severity index (DSI) to determine G. boninense aggressiveness levels while verifying disease using a culture-based method, which might not provide accurate results or be feasible in all cases. To differentiate G. boninense aggressiveness, we employed the DSI and vegetative growth measurement of infected oil palm seedlings. Disease confirmation was performed through scanning electron microscopy and molecular identification of fungal DNA from both infected tissue and fungi isolated from Ganoderma selective medium. Two-month-old oil palm seedlings were artificially inoculated with G. boninense isolates (2, 4A, 5A, 5B, and 7A) sampled from Miri (Lambir) and Mukah (Sungai Meris and Sungai Liuk), Sarawak. The isolates were categorized into three groups: highly aggressive (4A and 5B), moderately aggressive (5A and 7A), and less aggressive (2). Isolate 5B was identified as the most aggressive, and it was the only one to result in seedling mortality. Out of the five vegetative growth parameters measured, only the bole size between treatments was not affected. The integration of both conventional and molecular approaches in disease confirmation allows for precise detection.
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Citations
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- An In-Depth Study of Phytopathogenic Ganoderma: Pathogenicity, Advanced Detection Techniques, Control Strategies, and Sustainable Management
Samantha C. Karunarathna, Nimesha M. Patabendige, Wenhua Lu, Suhail Asad, Kalani K. Hapuarachchi
Journal of Fungi.2024; 10(6): 414. CrossRef - Advancements in the nanodelivery of azole-based fungicides to control oil palm pathogenic fungi
Azren Aida Asmawi, Fatmawati Adam, Nurul Aini Mohd Azman, Mohd Basyaruddin Abdul Rahman
Heliyon.2024; 10(18): e37132. CrossRef - Characterizations of Ganoderma species causing basal stem rot disease in coconut tree
Umesh Sajjan, Manjunath Hubballi, Abhay K. Pandey, V. Devappa, H. P. Maheswarappa
3 Biotech.2024;[Epub] CrossRef
- An In-Depth Study of Phytopathogenic Ganoderma: Pathogenicity, Advanced Detection Techniques, Control Strategies, and Sustainable Management
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