Efficacy of different fungicides and bio control agents against Fusarium oxysporum, causal agent of potato dry rot

Jawed, Shehbaz; Wang, Huafeng; Cheng, Xuhua; Mehmood, Adeel; Kaleri, Arif Hussain; Jatoi, Zaheer Ahmed; Kaleri, Asif Ali; Kubar, Aftab Ali; Nizamani, Mir Muhammad

doi:10.17485/ijst/2019/v12i7/141007

Cited by 4 publications

(4 citation statements)

References 21 publications

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“…The isolates of T. viride VG18, T. harzianum TZ16, T. virens KB31, T. asperellum ÖT1 and T. inhamatum KEB12 controlled F. sambucinum in inoculated tubers stored at 24 °C for 4-6 weeks (Aydın 2019). Paecilomyces lilacinus and T. polysorum significantly reduced the dry rot caused by F. oxysporum (Kubar et al 2019). The role of nonpathogenic endophytes associated with potato phyllosphere and rhizosphere is also positive in dry rot suppression.…”

Section: Biological Controlmentioning

confidence: 97%

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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Section: Biological Controlmentioning

confidence: 97%

Potato dry rot disease: current status, pathogenomics and management

et al. 2020

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“…Subsequently, all samples were incubated at 28 °C for different times (3,6,9, and 12 h). The spores were collected and resuspended in sterile water, staining with FDA and PI as described earlier.…”

Section: Influence Of Cinnamaldehyde On F Oxysporum Pathogenicitymentioning

confidence: 99%

“…5 Field and storage diseases, such as late blight, early blight, black skin, powdery scab, wilt disease, dry rot, and psoriasis, exert significant detrimental impacts on the global yield, quality, and market value of potatoes. 6,7 Postharvest potatoes are highly susceptible to fungal infections, which severely compromise their quality, yield, and value. One of the most serious infectious diseases is dry rot, attributed to the pathogen Fusarium spp.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, potatoes face susceptibility to over 40 pathogens, encompassing viruses, bacteria, fungi, nematodes, and insects 5 . Field and storage diseases, such as late blight, early blight, black skin, powdery scab, wilt disease, dry rot, and psoriasis, exert significant detrimental impacts on the global yield, quality, and market value of potatoes 6,7 . Postharvest potatoes are highly susceptible to fungal infections, which severely compromise their quality, yield, and value.…”

Section: Introductionmentioning

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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