Biocontrol mechanism of Bacillus siamensis sp. QN2MO-1 against tomato fusarium wilt disease during fruit postharvest and planting

Microbiological Research, Journal Year: 2024, Volume and Issue: 283, P. 127694 - 127694

Published: March 14, 2024

Language: Английский

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Biocontrol potential of volatile organic compounds produced by Streptomyces corchorusii CG-G2 to strawberry anthracnose caused by Colletotrichum gloeosporioides

Food Chemistry, Journal Year: 2023, Volume and Issue: 437, P. 137938 - 137938

Published: Nov. 5, 2023

Language: Английский

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Integration analysis of transcriptomics and proteomics reveals the inhibitory effect of carvacrol on Alternaria alternata by interfering with carbohydrate metabolism

Postharvest Biology and Technology, Journal Year: 2024, Volume and Issue: 213, P. 112928 - 112928

Published: April 9, 2024

Language: Английский

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Fusarium Tropical Race 4 in Latin America and the Caribbean: status and global research advances towards disease management

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: July 16, 2024

Fusarium wilt of banana (FWB), caused by the soil-borne fungus

Language: Английский

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The Volatile Organic Compounds of Streptomyces spp.: An In-Depth Analysis of Their Antifungal Properties

Microorganisms, Journal Year: 2023, Volume and Issue: 11(7), P. 1820 - 1820

Published: July 16, 2023

The study of volatile organic compounds (VOCs) has expanded because the growing need to search for new bioactive that could be used as therapeutic alternatives. These small molecules serve signals establish interactions with other nearby organisms in environment. In this work, we evaluated antifungal effect VOCs produced by different Streptomyces spp. This was performed using VOC chamber devices allow free exchange without physical contact between microorganisms or diffusible they produce. Antifungal activity tested against Escovopsis weberi, a fungal pathogen affects ant nest stability, and results showed CS014, CS057, CS131, CS147, CS159, CS207, CS227 inhibit reduce growth their emitted VOCs. A GS-MS analysis volatiles captured activated charcoal suggested these strains synthesize several VOCs, many them presence E. accumulation various determining inhibition effect.

Language: Английский

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Dyella aluminiiresistens sp. nov., a Al3+-tolerant bacterium with the ability to inhibit Fusarium oxysporum f. sp. melonis isolated from rhizosphere soil of muskmelon

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, Journal Year: 2025, Volume and Issue: 75(1)

Published: Jan. 6, 2025

A bacterial strain, designated as A6

Language: Английский

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Trichoderma virens XZ11-1 producing siderophores inhibits the infection of Fusarium oxysporum and promotes plant growth in banana plants

Microbial Cell Factories, Journal Year: 2025, Volume and Issue: 24(1)

Published: Jan. 16, 2025

Language: Английский

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Biocontrol Effect Induced by Streptomyces anulatusZAM4‐4 on Phytophthora capsici Causing Pepper Blight in Capsicum annuum

Plant Pathology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

ABSTRACT Pepper blight, caused by the soilborne pathogen Phytophthora capsici , poses a formidable threat to pepper ( Capsicum annuum ) production. The prevalent use of chemical fungicides for blight management has been associated with adverse environmental consequences. To address drawbacks in agriculture, exploration biological control agents emerged as promising alternative. Here, we identified strain ZAM4‐4 Streptomyces anulatus which demonstrated potent inhibitory effects against P . impeding spore germination and zoospore release, while significantly enhancing activities superoxide dismutase (SOD), peroxidases (POD) phenylalanine ammonia‐lyase (PAL). Moreover, application fermentation resulted notably increased height fresh weight plants compared group. Interestingly, exhibited compatibility variety conventional (metalaxyl, dimethomorph fluopicolide), encouraging us explore its combined enhance effectiveness. Both laboratory pot experiments provided compelling evidence that achieved efficacy comparable high concentrations alone combatting blight. Overall, our investigation not only bolstered resistance inhibiting reproduction elevating enzymatic activities, consequently stimulating plant growth, but also displayed improved sustained when used combination dimethomorph. These findings highlight potential future applications field sustainable management.

Language: Английский

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2-Nonanol produced by Bacillus velezensis EM-1: a new biocontrol agent against tobacco brown spot

Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 16

Published: April 30, 2025

Tobacco brown spot disease, caused by Alternaria alternata, poses a significant threat to crop production. Traditional control methods, particularly chemical fungicides, have raised concerns about environmental impact and resistance. Although our previous research has shown that volatile compounds produced Bacillus velezensis EM-1 can effectively suppress A. the specific antifungal their mechanisms remain unclear. In this study, exposure volatiles from strain significantly inhibited mycelial growth spore germination of with 2-nonanol identified as most potent compound. Fumigation experiments revealed exhibited strong dose-dependent toxicity, an EC50 0.1055 μL/cm3 minimum inhibitory concentration 0.2166 μL/cm3. vivo on tobacco leaves confirmed reduced disease incidence slowed lesion expansion. Transcriptome analysis indicated downregulated expression genes encoding D-glucose synthesis in carbon metabolism, which limited energy acquisition alternata. Moreover, antioxidant enzymes, including superoxide dismutase (SOD) catalase (CAT), was markedly suppressed 2-nonanol, thereby exacerbating cellular damage induced oxidative stress. These findings suggest holds potential biocontrol agent for managing underscoring promising role organic (VOCs) development environmentally friendly products.

Language: Английский

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Antimicrobial mechanisms and secondary metabolite profiles of Streptomyces hygroscopicus subsp. hygroscopicus 5–4 against banana fusarium wilt disease using metabolomics

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: June 9, 2023

Fusarium wilt of bananas (FWB) is seriously affecting the sustainable development banana industry and caused by devastating soil-borne fungus oxysporum f. sp. cubense tropical race 4 (Foc TR4). Biological control a promising strategy for controlling in bananas. We previously identified Streptomyces hygroscopicus subsp. 5-4 with strong antifungal activity against FWB. The most possible antimicrobial mechanism strain was explored using metabolomics approach, light microscopy imaging, transmission electron (TEM). membrane integrity ultrastructure Foc TR4 damaged after extract treatment, which supported degradation mycelium, soluble protein content, extracellular reducing sugar NADH oxidase activity, malondialdehyde mitochondrial potential, respiratory chain complex enzyme activity. extracts cultivated at different times were characterized liquid chromatography-mass spectrometer (LC-MS). 647 known metabolites detected strains 5-4. Hygromycin B, gluten exorphin B4, torvoside G, (z)-8-tetradecenal, piperitoside, sarmentosin, pubescenol, other compounds main differential on fermentation culture 7 days. Compared extracts, hygromycin B inhibited mycelial growth TR4, EC50 concentration 7.4 μg/mL. These results showed that could destroy cell to inhibit growth, may be key active metabolite. might candidate FWB provide scientific basis practical application as biological agent.

Language: Английский

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