Efficacy of fosetyl-Al, propamocarb, dimethomorph, cymoxanil, metalaxyl and metalaxyl-M in Czech Pseudoperonospora cubensis populations during the years 2005 through 2010

Pavelková, Jana; Lebeda, A.; Sedláková, B.

doi:10.1016/j.cropro.2014.02.006

Cited by 20 publications

(7 citation statements)

References 25 publications

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“…dimethomorph, mandipropamid) and strobilurins (e.g. azoxystrobin) [ 5 – 10 , 13 , 19 – 21 , 40 , 41 ].…”

Section: Discussionmentioning

confidence: 99%

“…Isolates resistant to mefenoxam and strobilurins [ 6 ] were found in US fields [ 7 , 8 ]. Resistance was also reported for cymoxanil and propamocarb [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 97%

“…Resistance to PAs in P . cubensis was discovered in Israel two years after introduction of metalaxyl [ 11 ] and thereafter in other countries [ 10 , 12 , 13 ]. PA-resistant isolates in Israel possessed higher competitive fitness [ 14 ] and exhibited much reduced sensitivity to mancozeb compared to PA-sensitive isolates [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

“…cubensis collected in China in 2012, Vietnam in 2013 and India in 2014 [ 3 ]. Varying frequencies of PA resistant isolates were detected in the Czech Republic between 2005 and 2009 [ 10 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

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The Novel Oomycide Oxathiapiprolin Inhibits All Stages in the Asexual Life Cycle of Pseudoperonospora cubensis - Causal Agent of Cucurbit Downy Mildew

Cohen

2015

PLoS ONE

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Oxathiapiprolin is a new oomycide (piperidinyl thiazole isoxazoline class) discovered by DuPont which controls diseases caused by oomycete plant pathogens. It binds in the oxysterol-binding protein domain of Oomycetes. Growth chambers studies with detached leaves and potted plants showed remarkable activity of oxathiapiprolin against Pseudoperonospora cubensis in cucurbits. The compound affected all stages in the asexual life cycle of the pathogen. It inhibited zoospore release, cystospore germination, lesion formation, lesion expansion, sporangiophore development and sporangial production. When applied to the foliage as a preventive spray no lesions developed due to inhibition of zoospore release and cystospore germination, and when applied curatively, at one or two days after inoculation, small restricted lesions developed but no sporulation occurred. When applied later to mature lesions, sporulation was strongly inhibited. Oxathiapiprolin suppressed sporulation of P. cubensis in naturally-infected leaves. It exhibited trans-laminar activity, translocated acropetaly from older to younger leaves, and moved from the root system to the foliage. Seed coating was highly effective in protecting the developed cucumber plants against downy mildew. UV microscopy observations made with cucumber leaves infected with P. cubensis revealed that inhibition of mycelium growth and sporulation induced by oxathiapiprolin was associated with callose encasement of the haustoria.

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“…dimethomorph, mandipropamid) and strobilurins (e.g. azoxystrobin) [ 5 – 10 , 13 , 19 – 21 , 40 , 41 ].…”

Section: Discussionmentioning

confidence: 99%

“…Isolates resistant to mefenoxam and strobilurins [ 6 ] were found in US fields [ 7 , 8 ]. Resistance was also reported for cymoxanil and propamocarb [ 9 , 10 ].…”

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Novel Oomycide Oxathiapiprolin Inhibits All Stages in the Asexual Life Cycle of Pseudoperonospora cubensis - Causal Agent of Cucurbit Downy Mildew

Cohen

2015

PLoS ONE

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“…There are many reports suggesting that the concentration of viruses, bacteria and fungi in an infected plant is reduced when the exogenous substances are used to induce the resistance. Seemingly, this science can offer influential ways to protect the plant against various pathogens (Xue et al 2019;Teresa et al 2014;Sreeja 2014;Pavelková et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Treatment of Lime Witches’ Broom Phytoplasma-Infected Mexican Lime with a Resistance Inducer and Study of its Effect on Systemic Resistance

Rastegar

Zamharir

Cai

et al. 2020

J Plant Growth Regul

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Destruction caused by plant diseases is terrible. Mexican lime witches' broom (MLWB) is a phytoplasma disease, which has caused considerable damage in Mexican lime tree in southern parts of Iran. In order to protect the plant against this pathogen, it is required to apply an appropriate treatment to induce resistance. Moreover, for better comprehension of disease mechanism, the analysis of phytohormones as one of the most critical basic components in plant cells, probably involved in resistance mechanisms, is of great importance. In this work, Mexican lime trees infected with lime witches'-broom phytoplasma (LWBP) were treated with Previcur Energy Tm (31% fosetyl-Alluminum plus 53% propamocarb) 4/ 000 as the resistance inducer against phytoplasma. In the next step, phytohormone levels in healthy Mexican lime were compared with those of infected and treated lime trees. For analysis of phytohormones, one-step dispersive solid phase extraction (DSPE) combined with liquid chromatography-tandem mass spectrometry-multiple reaction monitoring (LC-MS/MS-MRM) mode was used. A total of 54 phytohormones including cytokinins, auxins, jasmonates, gibberellins, salicylic acid and abscisic acid groups were simultaneously analyzed for treated, infected, and healthy plants. Totally, 18 phytohormones from plant leave extract were detected, among which levels of 11 phytohormones including SA, JA, JA-Phe, JA-Ile, JA-Leu, OPDA, CZ, iP7G, cZ9G, TZr and 2MeStZR were significantly changed in both infected and treated plants. Result of the present study indicated that the applied treatment was able to reduce the severity score in plant. On the other hand, phytoplasma (as a biotic stress) and treatment with Previcur Energy Tm (as a resistance inducer) could affect fundamental processes in plant via regulation of phytohormone levels.

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Impact of Repeated Applications of Metalaxyl on Its Dissipation and Microbial Community in Soil

Wang

Zhu

Wang

et al. 2015

Water Air Soil Pollut

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Efficacy of fosetyl-Al, propamocarb, dimethomorph, cymoxanil, metalaxyl and metalaxyl-M in Czech Pseudoperonospora cubensis populations during the years 2005 through 2010

Cited by 20 publications

References 25 publications

The Novel Oomycide Oxathiapiprolin Inhibits All Stages in the Asexual Life Cycle of Pseudoperonospora cubensis - Causal Agent of Cucurbit Downy Mildew

The Novel Oomycide Oxathiapiprolin Inhibits All Stages in the Asexual Life Cycle of Pseudoperonospora cubensis - Causal Agent of Cucurbit Downy Mildew

Treatment of Lime Witches’ Broom Phytoplasma-Infected Mexican Lime with a Resistance Inducer and Study of its Effect on Systemic Resistance

Impact of Repeated Applications of Metalaxyl on Its Dissipation and Microbial Community in Soil

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