Sugenendran Supramani, Danial Aizat Norhisham, Nur Ardiyana Rejab, Zul Ilham, Wan Abd Al Qadr Imad Wan-Mohtar
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引用次数: 0
Abstract
Basal stem rot (BSR), a devastating disease caused by Ganoderma boninense (synonym G. orbiforme) significantly affects the oil palm industry, particularly in Indonesia and Malaysia. Current control measures for BSR are limited, prompting the need for environmentally sustainable biocontrol alternatives. In this study, the antagonistic potential of medicinal mushrooms against G. orbiforme to mitigate BSR in oil palm were evaluated. Among the tested species, G. lucidum exhibited the highest percentage inhibition of radial growth (PIRG) at 60.96%, followed by G. neojaponicum (50.37%) and Lignosus rhinoceros (13.50%). The biocontrol efficacy of G. lucidum was further assessed using a modified air-lift bioreactor (MALB) system, demonstrating that G. lucidum is non-pathogenic to oil palm and enhanced plant growth by 41.67% in terms of dry weight. In contrast, G. orbiforme inoculation resulted in typical symptoms such as leaf necrosis, yellowing and browning, Cercospora leaf spots and extensive hyphal mass growth, thereby confirming the pathogenicity of this species in oil palm. Infected plants experienced a significant reduction in dry weight by 115.31%. Furthermore, inoculating G. lucidum into plants either before or after inoculation with G. orbiforme positively impacted plant growth, with more pronounced effects when G. lucidum was introduced first, followed by the pathogenic G. orbiforme as tested in MALB system. These findings suggest that G. lucidum could be effectively utilized as a biocontrol agent to control BSR.
期刊介绍：
Biotechnology Letters is the world’s leading rapid-publication primary journal dedicated to biotechnology as a whole – that is to topics relating to actual or potential applications of biological reactions affected by microbial, plant or animal cells and biocatalysts derived from them.
All relevant aspects of molecular biology, genetics and cell biochemistry, of process and reactor design, of pre- and post-treatment steps, and of manufacturing or service operations are therefore included.
Contributions from industrial and academic laboratories are equally welcome. We also welcome contributions covering biotechnological aspects of regenerative medicine and biomaterials and also cancer biotechnology. Criteria for the acceptance of papers relate to our aim of publishing useful and informative results that will be of value to other workers in related fields.
The emphasis is very much on novelty and immediacy in order to justify rapid publication of authors’ results. It should be noted, however, that we do not normally publish papers (but this is not absolute) that deal with unidentified consortia of microorganisms (e.g. as in activated sludge) as these results may not be easily reproducible in other laboratories.
Papers describing the isolation and identification of microorganisms are not regarded as appropriate but such information can be appended as supporting information to a paper. Papers dealing with simple process development are usually considered to lack sufficient novelty or interest to warrant publication.
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