Biological and molecular characterization of field isolates of Alternaria alternata with single or double resistance to respiratory complex II and III inhibitors

Malandrakis, Anastasios A.; Apostolidou, Zoi A.; Louka, Dimitra; Markoglou, Anastasios N.; Flouri, F.

doi:10.1007/s10658-018-1463-2

Cited by 13 publications

(4 citation statements)

References 35 publications

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“…For the successful management of this disease, rotation of fungicides with different modes of actions (multi-site and eco-sustainable fungicides in particular) is crucial due to the onset of resistant strains, particularly against respiration inhibitor fungicides (quinone outside inhibitors (QoIs) and succinate dehydrogenase inhibitors (SDHIs)) [78,79]. Additional strategies to effectively manage the early blight disease include preventive agronomic methods, starting from the choice of resistant cultivars, the use of healthy seeds or transplant material, the adoption of forecasting models, the control of above-ground plant humidity via soil-directed irrigation, crop alternation, the elimination of weeds and plant residues, and the increase of plant vigour through an appropriate fertilization management [80][81][82].…”

Section: Tomato Mosaic Diseasementioning

confidence: 99%

A Review of the Most Common and Economically Important Diseases That Undermine the Cultivation of Tomato Crop in the Mediterranean Basin

et al. 2021

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Tomato (Solanum lycopersicum L.), family Solanaceae, has become in the past fifty years one of the most important and extensively grown horticultural crops in the Mediterranean region and throughout the world. In 2019, more than 180 million tonnes of tomato have been produced worldwide, out of which around 42 million tonnes in Mediterranean countries. Due to its genetic properties, tomato is afflicted by numerous plant diseases induced by fungal, bacterial, phytoplasma, virus, and viroid pathogens. Not only is its genetic inheritance of great importance to the management of the numerous tomato pathogens, but equally as important are also the present climate changes, the recently revised phytopathological control measures, and the globalization of the seed industry. Thus, the recognition of symptoms and the knowledge of the distribution and spread of the disease and of the methods for early detection of the pathogens are the major prerequisites for a successful management of the disease. In this review, we will describe the main tomato pathogens in the Mediterranean area that impact mostly the tomato yield and provide the current and perspective measures necessary for their successful management.

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Section: Tomato Mosaic Diseasementioning

confidence: 99%

A Review of the Most Common and Economically Important Diseases That Undermine the Cultivation of Tomato Crop in the Mediterranean Basin

et al. 2021

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“…The main strategy for decreasing the prevalence of A. alternata is chemical control, which uses both protective and systemic fungicides such as demethylation inhibitors (DMIs), succinate dehydrogenase inhibitors (SDHIs), and quinone outside inhibitors (QoIs) [4,5]. However, due to their widespread use and site-specific mode of action, the fungicides' therapeutic effectiveness has been compromised by the rise of resistant strains [6].…”

Section: Introductionmentioning

confidence: 99%

Phyto-Synthesis and Characterization of Silver Nanoparticles Using Box-Behnken Design and Its Anti-Alternaria Activity

Daniel,

Al-Hashimi,

Keyster

et al. 2023

Clean Technol.

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Alternaria alternata is a global fungal pathogen that causes symptoms such as leaf blight and seed rot resulting in economically significant yield losses in different varieties of crops. Green synthesis of nanoparticles is preferred over other methods of synthesis due to their safety, eco-friendly approach, and cost-effectiveness. Phyto-synthesis of silver nanoparticles (Ag-NPs) using seed extract of Abrus precatorious was optimized and characterized using the Box-Behnken design (BBD). Ag-NPs with a UVmax of 409.01 nm and a crystallite and particle size of 23.75 and 34.36 nm, respectively, were synthesized. In vitro anti-alternaria activity of Ag-NPs showed a concentration-dependent inhibition of the mycelia with a maximum inhibition of 54.61% at 200 ppm which was significantly different (p < 0.05) from propiconazole (1 ppm) with 100% inhibition. A scanning electron micrograph (SEM) of mycelia treated with 200 ppm of Ag-NPs showed a shrunken and shriveled mycelia while the ultrastructure of the mycelia under a transmission electron microscope (TEM) showed the alteration of the fungus cell wall and disappearance of cellular organelles compared to the control sample, while energy dispersive x-ray spectroscopy (EDX) analysis of the mycelia showed the localization of elemental Ag (0.95%) within the cell of the fungus compared to the control. The results of this study highlighted the antifungal potential of Ag-NPs against fungicide-resistant Alternaria alternata to reduce the environmental impact of synthetic fungicides.

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“…For example, a recent study revealed that the application of iprodione over 3 years for treating Alternaria brown spot of Minneola tangelo led to the development of iprodione resistance in A. alternata ( 20 ). Similarly, A. alternata and other Alternaria species isolated from pistachio and tangerine orchards became less sensitive to azoxystrobin, pyraclostrobin (QoIs), boscalid, fluopyram, and isopyrazam (SDHIs) after only 3 to 4 years of consecutive applications of these fungicides ( 21 – 24 ). In addition, Avenot et al found that the sensitivity of A. alternata from pistachio with and without triazole-exposure history (TEB, DIF, and propiconazole) had unimodal but different distribution patterns, suggesting potentially common mechanisms of resistance ( 10 , 23 ).…”

Section: Introductionmentioning

confidence: 99%

Genetic Structure and Triazole Antifungal Susceptibilities of Alternaria alternata from Greenhouses in Kunming, China

Yang

Cui

et al. 2022

Microbiol Spectr

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Biological and molecular characterization of field isolates of Alternaria alternata with single or double resistance to respiratory complex II and III inhibitors

Cited by 13 publications

References 35 publications

A Review of the Most Common and Economically Important Diseases That Undermine the Cultivation of Tomato Crop in the Mediterranean Basin

A Review of the Most Common and Economically Important Diseases That Undermine the Cultivation of Tomato Crop in the Mediterranean Basin

Phyto-Synthesis and Characterization of Silver Nanoparticles Using Box-Behnken Design and Its Anti-Alternaria Activity

Genetic Structure and Triazole Antifungal Susceptibilities of Alternaria alternata from Greenhouses in Kunming, China

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