Control of Fusarium Dry Rot Incited by Fusarium oxysporum f. sp. tuberosi Using Sargassum vulgare Aqueous and Organic Extracts

Ammar, Nawaim; Nefzi, Adel; Jabnoun‐Khiareddine, Hayfa; Daami‐Remadi, Mejda

doi:10.4172/1948-5948.1000366

Cited by 6 publications

(4 citation statements)

References 21 publications

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“…), and thyme (Thymus quinquecostatus Celak. ), 30,31 as well as biologically active substances like L-menthone, S-carvacone, chitosan, and thymol, have been reported to effectively inhibit the growth of F. oxysporum. 3,32,33 In this study, we identified more than 30 plant-derived compounds from the literature and further narrowed down the selection to 14 compounds for testing their inhibitory activity against F. oxysporum.…”

Section: Discussionmentioning

confidence: 99%

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Inhibitory effects and mechanisms of cinnamaldehyde against Fusarium oxysporum, a serious pathogen in potatoes

Zhang,

Liu,

Wang

et al. 2024

Pest Management Science

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BACKGROUNDPotatoes, a major economic crop, are significantly impacted by Fusarium dry rot, a prevalent postharvest disease. Despite the broad‐spectrum antimicrobial properties of cinnamaldehyde, a naturally‐derived plant substance, its efficacy against the causal pathogen of potato dry rot (Fusarium oxysporum) and the underlying mechanisms have not been extensively studied.RESULTSOur study demonstrates that cinnamaldehyde effectively inhibits the growth of Fusarium oxysporum, the pathogen responsible for potato dry rot, and increases its sensitivity to environmental stress factors such as extreme temperatures and high salt stress. Treatment with cinnamaldehyde results in altered fungal mycelium morphology, compromised cell wall stability, and disrupted cell membrane integrity, thereby reducing spore viability. Specifically, it interferes with the cell membrane and cell wall structures of the fungus, potentially disrupting fungal growth by modulating signaling pathways involved in cell wall maintenance, chitin metabolism, and GPI‐anchored protein function. Notably, we show that cinnamaldehyde induces a form of regulated cell death in F. oxysporum, which is characterized not as typical apoptosis, as evidenced by Annexin V negative staining. However, the specific cell death type and underlying mechanism still needed to be further explored.CONCLUSIONCinnamaldehyde, an environmentally friendly plant‐based active compound, exhibits strong inhibitory effects on F. oxysporum, indicating its potential use in the prevention and control strategies for potato dry rot. This research contributes to the understanding of novel antifungal mechanisms and offers promising insights into eco‐friendly alternatives for managing this economically significant postharvest disease.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

“…), and thyme ( Thymus quinquecostatus Celak. ), 30,31 as well as biologically active substances like L‐menthone, S‐carvacone, chitosan, and thymol, have been reported to effectively inhibit the growth of F. oxysporum 3,32,33 …”

Section: Discussionmentioning

confidence: 99%

Inhibitory effects and mechanisms of cinnamaldehyde against Fusarium oxysporum, a serious pathogen in potatoes

Zhang,

Liu,

Wang

et al. 2024

Pest Management Science

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“…The identified Aspergillus, Penicillium, Colletotrichum and Trichoderma strains were effective in suppressing F. sambucinum and F. solani. The use of aqueous extract from brown algae Sargassum vulgare reduced dry rot severity by 55% as compared to control (Nawaim et al 2017). The quest of finding some bioagents and chemicals for induced resistance led to the finding of T2-Toxin produced by Fusarium species which developed inherent resistance in potato against F. sulphureum.…”

Section: Biological Controlmentioning

confidence: 99%

Potato dry rot disease: current status, pathogenomics and management

et al. 2020

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Potato dry rot disease caused by Fusarium species is a major threat to global potato production. The soil and seed-borne diseases influence the crop stand by inhibiting the development of potato sprouts and cause severe rots in seed tubers, table and processing purpose potatoes in cold stores. The symptoms of the dry rot include sunken and wrinkled brown to black tissue patches on tubers having less dry matter and shriveled flesh. Fungal infection accompanied by toxin development in the rotten tubers raises more concern for consumer health. The widespread dry rot causing fungal species (Fusarium graminearum) is reported to have a hemibiotrophic lifestyle. A cascade of enzymes, toxins and small secreted proteins are involved in the pathogenesis of these hemibiotrophs. With the availability of the genome sequence of the most devastating species Fusarium sambucinum, it is important to identify the potential pathogenicity factors and small secreted proteins that will help in designing management strategies. Limited resistant cultivars and the emergence of fungicide-resistant strains have made it more threatening for potato cultivation and trade. Several novel fungicide molecules (Azoxystrobin, chlorothalonil and fludioxonil), are found very effective as tuber treatment chemicals. Besides, many beneficial bioagents and safer chemicals have shown antibiosis and mycoparasitism against this pathogen. Germplasm screening for dry rot resistance is important to assist the resistance breeding program for the development of resistant cultivars. This review aims to draw attention to the symptomatology, infection process, pathogenomics, the role of toxins and management approaches for potato dry rot disease, which is very much critical in designing better management strategies.

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“…Biological management has evolved as a viable, effective, and safe alternative technique for managing fungal phytopathogens in recent decades [ 13 ]. A novel approach in disease management and plant growth enhancement entails utilizing bacterial and fungal bioagents instead of relying on synthetic chemical inputs [ 14 , 15 , 16 ]. Isolating microorganisms, particularly actinobacteria, stands out due to their capability to produce secondary metabolites like antibiotics and extracellular enzymes.…”

Section: Introductionmentioning

confidence: 99%

Combatting Sugar Beet Root Rot: Streptomyces Strains’ Efficacy against Fusarium oxysporum

Abdelghany,

Yassin,

Abu-Ellail

et al. 2024

Plants

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Sugar beet root rot disease triggered by Fusarium oxysporum f. sp. radicis-betae is a destructive disease and dramatically affects the production and quality of the sugar beet industry. Employing beneficial microorganisms as a biocontrol strategy represents an eco-friendly and sustainable approach to combat various plant diseases. The distinct aspect of this study was to assess the antifungal and plant growth-promoting capabilities of recently isolated Streptomyces to treat sugar beet plants against infection with the phytopathogen F. oxysporum. Thirty-seven actinobacterial isolates were recovered from the rhizosphere of healthy sugar beet plants and screened for their potential to antagonize F. oxysporum in vitro. Two isolates SB3-15 and SB2-23 that displayed higher antagonistic effects were morphologically and molecularly identified as Streptomyces spp. Seed treatment with the fermentation broth of the selected Streptomyces strains SB3-15 and SB2-23 significantly reduced disease severity compared to the infected control in a greenhouse experiment. Streptomyces SB2-23 exhibited the highest protective activity with high efficacy ranging from 91.06 to 94.77% compared to chemical fungicide (86.44 to 92.36%). Furthermore, strain SB2-23 significantly increased plant weight, root weight, root length, and diameter. Likewise, it improves sucrose percentage and juice purity. As a consequence, the strain SB2-23’s intriguing biocontrol capability and sugar beet root growth stimulation present promising prospects for its utilization in both plant protection and enhancement strategies.

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Control of Fusarium Dry Rot Incited by Fusarium oxysporum f. sp. tuberosi Using Sargassum vulgare Aqueous and Organic Extracts

Cited by 6 publications

References 21 publications

Inhibitory effects and mechanisms of cinnamaldehyde against Fusarium oxysporum, a serious pathogen in potatoes

Inhibitory effects and mechanisms of cinnamaldehyde against Fusarium oxysporum, a serious pathogen in potatoes

Potato dry rot disease: current status, pathogenomics and management

Combatting Sugar Beet Root Rot: Streptomyces Strains’ Efficacy against Fusarium oxysporum

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