First Report of Ashy stem blight caused by Macrophomina phaseolina on Aeonium canariense in Egypt

Abdel-Kader, M. M.; El-Mougy, Nehal S.; Aly, M. D. E.; Lashin, S. M.

doi:10.4172/2157-7471.1000101

Cited by 9 publications

(5 citation statements)

References 22 publications

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“…The most effective treatments resulted from in vitro experiments were used in the greenhouse. Black polyethylene bags (20-cm diameter x 30-cm height) were filled with (5 kg) of soil infested with the pathogen (1 g inoculum : 100 g soil), then irrigated and left for one week to allow the inoculum to grow and produce mycelium and spores (Abdel-Kader et al, 2010). Sugar beet variety that is sensitive to damping off and root rot diseases (Toro variety from Germany) was planted in pots.…”

Section: -In Vivo Experiments 1-greenhouse Experimentsmentioning

confidence: 99%

Using Green Chemicals and Biological Control Agents for Controlling the Seed-Borne Pathogen Fusarium moniliforme in Sugar Beet

Shawki

Elsayed

Abido

et al. 2020

Journal of Plant Protection and Pathology

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Seeds of fifteen sugar beet (Beta vulgaris L.) cultivars were collected in 2018 and 2019 in Egypt and screened for their seed-borne mycoflora using deep-freezing blotter method. Among those fungi recovered from sugar beet seeds, a plant pathogen Fusarium moniliforme was the most dominant. Thus, it was tested for its pathogenicity and transmission against sugar beet plants. Green chemicals (antioxidants) and biological control agents were used for suppressing F. moniliforme in comparison with Fludioxonil/Mefenoxam (Maxim XL 3.5% FS ® ; a chemical fungicide), Potassium silicate at concentrations (4, 6, 8, 10 and 12 ml/L), Nicotinic acid at concentrations (1, 5, 10, 15 and 20 mM/L), Trichoderma harzianum, T. hamatum and Bacillus subtilis were tested against F. moniliforme in vitro, in the greenhouse and in the field. The results assured that nicotinic acid at 5 mM/L, T. harzianum and T. hamatum and potassium silicate at 12 ml/L were the best treatments compared with the Maxim ® fungicide (control). But nicotinic acid at 5 mM/L was the most effective among all treatments.

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Section: -In Vivo Experiments 1-greenhouse Experimentsmentioning

confidence: 99%

Using Green Chemicals and Biological Control Agents for Controlling the Seed-Borne Pathogen Fusarium moniliforme in Sugar Beet

Shawki

Elsayed

Abido

et al. 2020

Journal of Plant Protection and Pathology

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“…phaseolina has shown to be comparatively a hard pathogen to control, and cultural, chemical or biological disease management strategies have failed to provide expected results (Abdel-Kader et al, 2010). So far, no registered fungicide has become available to fight M. phaseolina (Srinivasan et al, 2009), although some fungicides such as quintozene (PCNB) and captan have been used against this pathogen to some extent (Frison et al, 1990;Dubey et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Many economically important oilseed plants, such as Glycine max, Gossypium herbaceum, Zea mays, Sesamum indicum, Phaseolus vulgaris and Helianthus annuus, also become victims of this fungus, with great yield loss (Mayek-Perez et al, 2002;Beas et al, 2006;Abdel-Kader et al, 2010). Besides being a destructive phytopathogen, M. phaseolina has also been documented as an opportunistic pathogen to human with the potential to weaken plant, animal, and human immunity (Arora et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

ANTIFUNGAL ACTIVITY OF Cirsium arvense EXTRACTS AGAINST PHYTOPATHOGENIC FUNGUS Macrophomina phaseolina

et al. 2017

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-Leaves, stems, roots and inflorescence of the asteraceous weed Circium arvense were extracted in methanol for two weeks. Methanol was evaporated in a rotary evaporator. Different concentrations (1, 2, 3, 4 and 5%) of methanolic extracts were prepared, and their antifungal activities were studied against Macrophomina phaseolina, using malt extract broth as growth medium. In general, extracts of all plant parts showed antifungal activities to variable extents. The highest antifungal activity occurred due to methanolic extract of leaves, followed by stem and root extracts, resulting in 10-74%, 6-57% and 11-39% reduction in fungal biomass over control, respectively. Inflorescence extract showed the least antifungal activity, resulting in 2-30% reduction in fungal biomass over control. There was a linear and inverse relationship between extract concentrations and fungal biomass for extracts of all the four parts. GC-MS analysis showed that there were 10 compounds in most effective methanolic leaf extract. Among these, 10-octadecanoic acid, methyl ester (26.442%), 2H-1-benzopyran, 6,7-dimethoxy-2-2-dimethyl (20.195%), hexadecanoic acid, methyl ester (15.752%) and 9,12-octadecadienoic acid (Z,Z)-, methyl ester (12.628%) were predominant compounds in the extract that may be responsible for antifungal activity. This study concludes that methanolic leaf extracts of C. arvense can be used for the management of M. phaseolina. 2H-1-benzopirano, 6,7-dimetoxi-2-2-dimetil (20,195%), ácido hexadecanóico, éster de metilo (15,752%) e ácido 9-12-octadecadienóico (Z,Z)-, éster de metilo (12,628%) Keywords

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“…A preliminary study on strawberry in Queensland found viable M. phaseolina in strawberry crowns that had been buried in soil after six months . Microsclerotia are also highly resistant under arid and water-stressed conditions Abdel-Kader et al, 2010). However, high soil moisture reduces the survival of M. phaseolina microsclerotia in soil, mainly attributed to lysis of mycelium from increased bacterial activity (Dhingra and Chagas, 1981).…”

Section: Environmental Influences On Behaviour and Survival Of M Phaseolinamentioning

confidence: 99%

“…Consequently, as the debris of infected plant material decomposes, microsclerotia are then released into the soil providing inoculum for future crops. The microsclerotia, which are composed of aggregations of hyphae surrounded with a melanised rind , are reported to persist within the soil for up to 15 years and are considered highly resistant under arid and water-stressed conditions (Abdel-Kader et al, 2010).…”

Section: Chapter 2 Comparison Of Macrophomina Phaseolina Inoculation Techniques On Strawberry 21 Introductionmentioning

confidence: 99%

Pathogenicity studies on strawberry to identify sources of resistance against Macrophomina phaseolina

Gomez¹

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Charcoal rot, caused by soil-borne fungal pathogen Macrophomina phaseolina (Tassi) Goidanich, is an important disease that affects strawberry cultivation in Australia. The pathogen has also been reported to cause significant plant losses worldwide and its emergence has been associated with the loss of the soil fumigant methyl bromide. Current fumigants are not able to eradicate the pathogen as effectively as methyl bromide.Management of the pathogen is also difficult due to its wide host range and ability to persist in the soil. The development of charcoal rot resistant genotypes is a major focus of the Australian Strawberry Breeding Program (ASBP). There are, however, several key gaps in the knowledge of charcoal rot of strawberry in Australia in order to breed for resistance.To address the lack of knowledge on host-pathogen interactions, a series of glasshouse experiments were conducted during 2015-2018 at the Maroochy Research Facility in Nambour, Australia. The first of the objectives was to develop an efficient and reliable inoculation method to be used for future disease screening. Two techniques were evaluated on two strawberry genotypes: inserting a M. phaseolina colonised-toothpick into the plant and drenching the potting media with a suspension of microsclerotia. A second objective was to identify genotypes with sources of resistance to M. phaseolina, where current and historical strawberry genotypes were screened. The third objective was to characterise M. phaseolina isolates for diversity and pathogenicity to strawberry, with the aggressiveness of thirty Australian M. phaseolina isolates investigated. Lastly, a genotype by isolate study was conducted to determine if there was a pathogenicity relationship between plant genotype and M. phaseolina isolate.M. phaseolina colonised-toothpicks were able to cause charcoal rot symptoms on two genotypes, and the likelihood of mortality at any given time was the same for both genotypes using this method. On the other hand, drenching plants with a M. phaseolina microsclerotia suspension found that one cultivar had a higher likelihood of mortality, suggesting inoculation by this method may better differentiate susceptibility between genotypes. For this reason, drenching potting media with a suspension of microsclerotia was the technique selected for subsequent pathogenicity assays for this study and for future breeding line screening.Studies on the strawberry genotype response to M. phaseolina showed the genotypes tested had varying degrees of resistance. Historical cultivars 'Earlibrite', 'Kabarla' and 'Phenomenal' were shown to be the most resistant to M. phaseolina. The cultivars 'Camarosa', 'Albion', Strawberry Festival', 'Rubygem', and 'Florida Radiance' were the least resistant.M. phaseolina isolates from Australia were non-specific as all isolates tested in this study were able to cause charcoal rot symptoms on strawberry. There were significant differences, however, in the pathogenicity of the thirty isolates of M. phaseolina assessed, which categorised in...

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First Report of Ashy stem blight caused by Macrophomina phaseolina on Aeonium canariense in Egypt

Cited by 9 publications

References 22 publications

Using Green Chemicals and Biological Control Agents for Controlling the Seed-Borne Pathogen Fusarium moniliforme in Sugar Beet

Using Green Chemicals and Biological Control Agents for Controlling the Seed-Borne Pathogen Fusarium moniliforme in Sugar Beet

ANTIFUNGAL ACTIVITY OF Cirsium arvense EXTRACTS AGAINST PHYTOPATHOGENIC FUNGUS Macrophomina phaseolina

Pathogenicity studies on strawberry to identify sources of resistance against Macrophomina phaseolina

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