Physiological studies of Fusarium oxysporum f. sp. melonis

Bhavya, R.; Thammaiah, N.; Devappa, V.; Indiresh, K. M.; Jayappa, J.

doi:10.20546/ijcmas.2019.811.066

Cited by 3 publications

(5 citation statements)

References 3 publications

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“…Bhavya et al (2019) observed that the optimal temperature range for the species F. oxysporum f. sp. melonis (FOSC) was between 20 and 25°C.…”

Section: Discussionmentioning

confidence: 99%

“…Variability was also observed regarding pathogenicity on melon plants and fruit, and sensitivity of these species to fungicides. This phenomenon could be explained because the isolates used in this study belong to different Fusarium complexes(Lima et al, 2021;Medeiros Araújo et al, 2021) Bhavya et al (2019). observed that the optimal temperature range for the species F. oxysporum f. sp.…”

mentioning

confidence: 87%

“…The lower sensitivity of a phytopathogen to a given chemical compound may be due to mutation or another genetic or epigenetic variability mechanism (Parreira et al, 2009). Another aspect that must be considered is the type of fungicide; systemic fungicides, such as those used in this study, are more fungitoxic than protective fungicides, as they are selective and specific for certain groups of fungi, and their selective toxicity greatly depends on the biological target (Azevedo, 2007).…”

Section: Ta B L Ementioning

confidence: 99%

“…Among the post-harvest fruit rot control measures, chemical control through the use of fungicides is a strategy considered indispensable by melon-exporting producers, as these products guarantee a longer shelf life of the fruit, protecting them from new infections during storage and commercialization (Azevedo, 2007).…”

mentioning

confidence: 99%

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Effect of environmental factors, fungicide sensitivity, and pathogenicity of Fusarium spp. associated with fruit rot of melon

Maniçoba

Negreiros

Cavalcante

et al. 2023

Journal of Phytopathology

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Fusarium rot is one of the main postharvest diseases of melons, directly interfering with the quality and commercial use of the fruit. The purpose of this study was to assess the effect of environmental factors (temperature, pH and salinity) and the pathogenicity of four Fusarium species (F. falciforme, F. kalimantanense, F. pernambucanum and F. sulawesiense) belonging to three different species complexes on disease development on melon, as well as the in vitro and in vivo sensitivity of these species to the fungicides azoxystrobin + fludioxonil, imazalil and thiabendazole. The results showed optimum fungal growth temperatures from 24.5 to 27.2°C, and optimum pH from 6.10 to 8.37 for all Fusarium species. NaCl concentrations (250–1000 mM) significantly reduced in vitro mycelial growth for all isolates. All species were pathogenic to melon plants and fruit, with an isolate of F. falciforme being the most aggressive, causing the highest disease severity in plants and fruit (43.3% and 62.5%, respectively). The isolate of F. sulawesiense tested showed high in vitro sensitivity to two fungicides (azoxystrobin + fludioxonil and imazalil), with EC50 values below 1 mg/L of a.i. Fruit inoculated with the selected isolates of F. falciforme and F. pernambucanum showed a reduction in the disease severity on the peduncle when treated with the fungicide thiabendazole (9.0% and 4.0%, respectively). Azoxystrobin + fludioxonil was responsible for the lowest disease severity in the epicarp caused by the same isolates (0.0% and 2.5%, respectively). These results are relevant to improve management strategies for diseases of melon caused by Fusarium spp.

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“…Bhavya et al (2019) observed that the optimal temperature range for the species F. oxysporum f. sp. melonis (FOSC) was between 20 and 25°C.…”

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 87%

Section: Ta B L Ementioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Effect of environmental factors, fungicide sensitivity, and pathogenicity of Fusarium spp. associated with fruit rot of melon

Maniçoba

Negreiros

Cavalcante

et al. 2023

Journal of Phytopathology

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“…The variability within a morphological group shows that identification based only on morphological and cultural characteristics can lead to misidentification since morphological and cultural characteristics are easily influenced by environmental factors such as humidity, temperature and precipitation (Nadjet, 2010;Bhavya et al, 2019). However, according to Henni et al (1994), although mycelial growth is not a stable criterion for differentiation of Fusarium spp.…”

Section: Discussionmentioning

confidence: 99%

Untitled

2021

Int. J. Curr. Res. Biosci. Plant Biol.

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Influence of Nutrition Media and Temperature on the Growth and Development of the Fusarium Oxysporum F. Sp. Cucumerinum Owen – The Causative Agent of Fusarium Wilt of Cucumber

Pikovskyi,

Markovska,

Dudchenko

et al. 2023

Naukovì dopovìdì Nacìonalʹnogo unìversitetu bìoresursìv ì priro

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Fusarium wilt of cucumber is a dangerous disease that causes significant crop losses. The development of effective disease control measures is based on a comprehensive understanding of the ecology of the causative agent of the disease – the fungus Fusarium oxysporum f. sp. cucumerinum Owen, which has not been sufficiently studied under the conditions of Ukraine. The purpose of the work is to study the influence of nutrient media and temperature conditions on the growth and development of the in vitro fungus F. oxysporum f. sp. cucumerinum. The research was carried out according to the methods generally accepted in phytopathology and mycology, in the problem research laboratory "Mycology and Phytopathology" of the Department of Phytopathology of the National University of Life and Environmental Sciences of Ukraine. It was established that the substrate and temperature factors influenced the vegetative growth and sporulation of F. oxysporum f. sp. cucumerinum. The maximum rate of mycelial growth of the fungus was observed on potato-glucose and potato-carrot agar. The most intensive sporulation of the pathogen was noted on potato-glucose agar – 8.3 million pcs./cm2, which is 4.79-6.98 million pcs./cm2 more compared to other investigated media. Optimum for vegetative growth of F. oxysporum f. sp. cucumerinum temperature was 30 °C. The most intensive sporulation of the pathogen occurred at a temperature of 25 °C and amounted to 9.66 million units/cm2. The results of research by various authors indicate the variability of ecological features of the fungus F. oxysporum f. sp. cucumerinum, which indicates the expediency of studying pathogens isolated in the conditions of a specific region and agricultural culture. The obtained results of the ecological features of the fungus can be used to develop an artificial infectious background.

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Physiological studies of Fusarium oxysporum f. sp. melonis

Cited by 3 publications

References 3 publications

Effect of environmental factors, fungicide sensitivity, and pathogenicity of Fusarium spp. associated with fruit rot of melon

Effect of environmental factors, fungicide sensitivity, and pathogenicity of Fusarium spp. associated with fruit rot of melon

Untitled

Influence of Nutrition Media and Temperature on the Growth and Development of the Fusarium Oxysporum F. Sp. Cucumerinum Owen – The Causative Agent of Fusarium Wilt of Cucumber

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