Characterization of the Synergistic Effect of Fungal Isolates in Suppressing Ganoderma boninense and Enhancing Oil Palm Growth.

IF 3.5 4区 生物学 Q2 MICROBIOLOGY
Muhammad Salahudin Kheirel Anuar, Amalia Mohd Hashim, Shamala Sundram, Siti Rahmah Abdul Rahman, Chai Ling Ho, Mui-Yun Wong, Noor Baity Saidi, Helmi Wasoh, Mohd Termizi Yusof
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Abstract

The globally vital oil palm, a major oil producer, confronts productivity challenges due to Ganoderma boninense (Gb), causing output decline. Chemical control efforts have proven ineffective, prompting exploration of microbial-based biocontrol. While single fungal biocontrol research exists, the impact of employing multiple biocontrols concurrently to combat Ganoderma and enhance oil palm growth remains uncharted. This study examined four soil-derived fungal isolates for their ability to antagonize Gb PER71 in vitro. Molecular identification categorized them as Talaromyces spp. and Penicillium sp. Moreover, all isolates were revealed to have at least three plant growth-promoting (PGP) traits and were shown to have phosphoric hydrolase, ester hydrolase, peptide hydrolase, and glycosidase activities which are essential for plant growth. Furthermore, the synergistic evaluation of fungal isolates was tested against Gb PER71. One out of six combinations of fungal isolates showed a synergistic effect in vitro, and two showed a synergistic effect in planta. The application of single and combined fungal isolates tested in planta also suppressed Gb PER71 and enhanced oil palm growth compared to control groups. The findings indicate the promising potential of these isolates as biocontrol agents (BCAs) and bioformulations against Gb in oil palm cultivation.

真菌分离物在抑制灵芝和促进油棕生长方面的协同效应特征。
全球重要的油棕榈是一种主要的油料生产植物,但由于灵芝(Gb)的影响,其产量面临下降的挑战。化学防治已被证明无效,这促使人们探索基于微生物的生物防治。虽然存在单一真菌生物防治研究,但同时采用多种生物防治措施来防治灵芝并促进油棕生长的影响仍是未知数。本研究考察了四种来自土壤的真菌分离物在体外拮抗 Gb PER71 的能力。分子鉴定将它们归类为塔拉酵母菌属(Talaromyces spp.)和青霉属(Penicillium sp.)。此外,所有分离物都被发现具有至少三种促进植物生长(PGP)的特性,并被证明具有磷酸水解酶、酯水解酶、肽水解酶和糖苷酶活性,这些活性对植物生长至关重要。此外,还测试了真菌分离物对 Gb PER71 的协同评价。六种真菌分离物组合中有一种在体外显示出协同效应,两种在植物体内显示出协同效应。与对照组相比,在植物体内应用单一和组合真菌分离物也能抑制 Gb PER71,并促进油棕榈的生长。研究结果表明,这些分离物作为生物防治剂(BCA)和生物制剂在油棕种植中防治革兰氏阴性菌的潜力巨大。
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来源期刊
Journal of Basic Microbiology
Journal of Basic Microbiology 生物-微生物学
CiteScore
6.10
自引率
0.00%
发文量
134
审稿时长
1.8 months
期刊介绍: The Journal of Basic Microbiology (JBM) publishes primary research papers on both procaryotic and eucaryotic microorganisms, including bacteria, archaea, fungi, algae, protozoans, phages, viruses, viroids and prions. Papers published deal with: microbial interactions (pathogenic, mutualistic, environmental), ecology, physiology, genetics and cell biology/development, new methodologies, i.e., new imaging technologies (e.g. video-fluorescence microscopy, modern TEM applications) novel molecular biology methods (e.g. PCR-based gene targeting or cassettes for cloning of GFP constructs).
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