Chitosan: a Safe Alternative to Synthetic Fungicides to Manage Dry Rot in Stored Potatoes

Raigond, Pinky; Sagar, Vinay; Mishra, Tanuja; Thakur, Aditi; Kumar, Vinod; Gupta, V.K.; Dutt, Som; Changan, Sushil

doi:10.1007/s11540-019-9421-8

Cited by 7 publications

(6 citation statements)

References 26 publications

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“…A recent study showed that a concentration of 0.25% chitosan completely inhibits F. sambucinum growth and prevents the other physiological losses in tubers. Chitosan was effective in managing dry rots in a dose-dependent manner in potato cultivar Kufri Jyoti and Kufri Chipsona (Raigond et al 2019). Further studies are also going on regarding the chitosan mediated induced defense response in potato plant and its role in regulating other physiological processes in potato tubers.…”

Section: Chemical Controlmentioning

confidence: 95%

“…Sodium silicate inhibited the pathogenic activity against F. sulphureum in vitro and reduced dry rot lesions of tubers in vivo (Li et al 2009). Other GRAS compounds, such as essential oils and plant extracts have also shown a good in vitro and in vivo inhibition of dry rot causing fungi in the form of seed treatment or fumigation (Baturo-Ciesniewska et al 2015;Hay et al 2019;Raigond et al 2019). Garlic (Allium sativum L.) essential oil found effective in reducing the severity of dry rot disease caused by F. solani (Bång 2007).…”

Section: Chemical Controlmentioning

confidence: 99%

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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: Chemical Controlmentioning

confidence: 95%

Section: Chemical Controlmentioning

confidence: 99%

Potato dry rot disease: current status, pathogenomics and management

et al. 2020

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“…Accordingly, generally-recognised-as-safe (GRAS) substances, such as inorganic acids, organic acids, inorganic salts, organic salts, essential oils and phytohormones, all display excellent effects in terms of sustainably controlling the dry rot of potato. Raigond et al [ 91 ] indicated that chitosan application significantly managed dry rot in potato, and he also found that a chitosan coating significantly reduced Fusarium incidence by inhibiting Fusarium growth. Xue et al [ 7 ] suggested that chitosan, sodium silicate and β-aminobutyric acid treatments markedly inhibited the expansion of lesion diameter in tubers infected with F. sulphureum .…”

Section: Dry Rot Of Potato Tubersmentioning

confidence: 99%

Pathogenicity, Mycotoxin Production, and Control of Potato Dry Rot Caused by Fusarium spp.: A Review

Xue

Liu

Yang³

2023

JoF

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Fusarium dry rot is one of the major potato diseases during storage after harvest, which not only results in quality degradation but also causes great economic losses. The disease can be elicited by some species of Fusarium, and the pathogenic fungi of Fusarium causing potato dry rot are considerably diverse in various countries and regions. The disease caused by Fusarium spp. is associated with mycotoxins accumulation, which has phytotoxic and mycotoxic effects on humans and animals. Chemical synthetic fungicide is considered the main control measure for the Fusarium dry rot of potato; nevertheless, it is unfortunate that persistent application inevitably results in the emergency of a resistant strain and environmental contamination. A comprehensive disease control strategy includes potato cultivar selection, appropriate cultural practices (crop rotation, cultivate pattern, fertilization, and irrigation), harvesting processes and postharvest treatments (harvesting, classification, packaging, wound healing), and storage conditions (environmental disinfection, temperature, humidity and gas composition) along with the application of fungicide pre-harvest or post-harvest. Recently, emerging studies have indicated that eco-friendly strategies include physical control, chemical methods (such as the application of generally-recognised-as-safe (GRAS) compounds or chemical (elicitors) and biological control have been introduced to combat the Fusarium dry rot of potato.

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“…Chitosan and β-aminobutyric acid (BABA) applications suppressed the development of lesion diameter and trichothecenes accumulation in potato tuber inoculated with F. sulphureum, the involved mechanism is related with the increases in enzyme activities associated with induced resistance, and down-regulated genes involved in trichothecenes biosynthesis pathway [69]. Raigond et al [70] also indicated that chitosan was effective in managing dry rots in a dose-dependent manner in potato cultivar Kufri Jyoti and Kufri Chipsona. As we know, chitosan can be as coating thin film material, in future chitosan should be used as a kind of coating thin film material to manage postharvest disease in potato tuber.…”

Section: Chemical Controlmentioning

confidence: 99%

Potato Dry Rot Caused by Fusarium spp. and Mycotoxins Accumulation and Management

Xue¹,

Yang²

2022

Fusarium - An Overview of the Genus

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Dry rot of potato (Solanum tuberosum L.) is an important postharvest disease during storage. The decay can be caused by several different species of Fusarium spp., such as, F. sambucinum, F. coeruleum, F. oxysporum, F. avenaceum, F. culmorum. The pathogen of Fusarum spp. causing dry rot of potato is considerable different in different countries and regions. The typical symptom of potato dry rot is sunken and wrinkled brown to black tissue patch on tuber with less dry matter and shriveled flesh. Fusarium spp. only invades host through wound or natural orifice during pre-harvest, storage and transportation period. Some Fusarium species infection associated with mycotoxins accumulation, which has phytotoxicity and mycotoxicoses in humans and animals. Synthetic fungicide is the main strategy to control the dry rot of potato, however, there are series of problem, such as environmental pollution, pathogen resistance. An integrated approach to manage the disease includes the introduction of resistant cultivar, appropriate cultural practices, and storage conditions combined with the application of synthetic fungicides pre-harvest or post-harvest. Moreover, some chemical fungicides and microbial antagonists have been integrated into potato dry rot management.

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Chitosan: a Safe Alternative to Synthetic Fungicides to Manage Dry Rot in Stored Potatoes

Cited by 7 publications

References 26 publications

Potato dry rot disease: current status, pathogenomics and management

Potato dry rot disease: current status, pathogenomics and management

Pathogenicity, Mycotoxin Production, and Control of Potato Dry Rot Caused by Fusarium spp.: A Review

Potato Dry Rot Caused by Fusarium spp. and Mycotoxins Accumulation and Management

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