Characterization of sensitivity of grove and packing house isolates of Penicillium digitatum to pyrimethanil

Vázquez, Daniel; Panozzo, Marina; Almirón, N.; Bello, Fierro; Burdyn, L.; Garrán, Sergio

doi:10.1016/j.postharvbio.2014.06.012

Cited by 4 publications

(7 citation statements)

References 9 publications

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“…The PYR‐resistant P. digitatum A21 strain previously isolated was used in this work (Vázquez et al 2014). Alternaria alternata and C. gloeosporioides strains were isolated from decayed fruits showing typical symptoms of black rot and anthracnose, respectively, by touching the infection with a sterile toothpick and seeding in PDA plates.…”

Section: Methodsmentioning

confidence: 99%

“…The incidence of disease was evaluated after 7, 10, 14, 15 and 21 days. To evaluate the incidence of green‐mould disease, the lessons in each fruit were analysed and different stages of disease were pondered with the following numeric values: (0) no infection; (1) initial colonization (softness in wound area); (2) mycelium growing (white around wound) and (3) sporulation (green rot in wound) (Vázquez et al 2014).…”

Section: Methodsmentioning

confidence: 99%

“…Novel fungicides based on different growth inhibition mechanism than benzimidazoles were developed in 1990s such as PYR but even resistant strains of Penicillium sp. emerged (Kinay et al 2007; Kanetis et al 2008; Vázquez et al 2014). Moreover, strains of P. digitatum with multiple resistance to different fungicides such as IMZ, guazatine (GZT), propiconazole (PPZ) and TBZ were identified (Erasmus et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The objective of this work was to evaluate the antagonist potential of Trichoderma strains native to an organic citrus orchard to inhibit the growth of P. digitatum , A. alternata and C. gloeosporioides. To examine whether these strains are able to control pathogens resistant to fungicides, the strain P. digitatum A21 resistant to PYR previously isolated from a citrus packing house was employed in this study (Vázquez et al 2014). In vitro and in vivo experiments showed that T. harzianum IC‐30 is a proficient biological control agent to inhibit the proliferation of green‐mould strains resistant to PYR in post‐harvest oranges.…”

Section: Introductionmentioning

confidence: 99%

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Effectiveness of Trichoderma strains isolated from the rhizosphere of citrus tree to control Alternaria alternata , Colletotrichum gloeosporioides and Penicillium digitatum A21 resistant to pyrimethanil in post‐harvest oranges ( Citrus sinensis L. (Osbeck))

et al. 2020

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Aims: Penicillium digitatum, Alternaria alternata and Colletotrichum gloeosporioides are pathogens responsible for large decays and production losses of citrus. They are commonly controlled by fungicides, whose excessive applications have led to the emergence of resistant P. digitatum strains. Alternative approaches are imperative for sustainable and environmental harmless citrus production, being biological control a promising strategy. The objective was to evaluate the potential of Trichoderma strains native from the rhizosphere of citrus trees to control these pathogens. Methods and Results: Seven strains were isolated and identified as Trichoderma harzianum, T. guizhouense, T. atroviride and T. koningiopsis through morphological and molecular analyses. Five of them showed effective antagonist performance in vitro against the pathogens. The strain T. harzianum IC-30 was the best biological control agent in vivo, obtaining a reduction of rot percentage around 80% after 3 weeks of infection of oranges with P. digitatum A21 (resistant to pyrimethanil). This strain also showed the highest chitinase and glucanase activities. Conclusions: Trichoderma harzianum IC-30 is an optimal antagonist for the control of green mould spreading and other pathogens in post-harvest citrus fruits. Significance and Impact of the Study: The strain combined with supplementary practices could lead to sustainable management of citrus fungal diseases, dispensing with synthetic fungicides.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effectiveness of Trichoderma strains isolated from the rhizosphere of citrus tree to control Alternaria alternata , Colletotrichum gloeosporioides and Penicillium digitatum A21 resistant to pyrimethanil in post‐harvest oranges ( Citrus sinensis L. (Osbeck))

et al. 2020

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“…Pyrimethanil (PYR) is one of the most used fungicides that has been detected in many aquatic ecosystems [5] and one of the most frequently used in European vineyards [9,10,11]. Such increase has heightened the interest in studying the potential risk and influence of PYR on the environment [3,5,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The Ecotoxicity of Pyrimethanil for Aquatic Biota

Araújo¹,

Shinn²,

Müller³

et al. 2015

Toxicity and Hazard of Agrochemicals

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Via the application of agrochemicals, farmers currently guarantee high productivity of fruit and vegetable crops. However, pest reduction using excessive amounts of such chemicals has a negative effect on aquatic organisms. The spray-drift, leaching, runoff or accidental spills occurring during or after application has become a serious and increasing problem for aquatic ecosystems. Pyrimethanil (PYR) is one of the most used fungicides. Such increase has heightened the interest in studying the potential risk and influence of PYR on the environment. In this chapter information on the PYR environmental risks for aquatic organisms was divided into three different approaches: (i) assessment of toxic effects of the pure active ingredient or the commercial formulation on primary producers, (ii) assessment of toxic effects of the pure active ingredient and PYR formulation on aquatic animals, and (iii) estimation of the role of PYR as an environmental disturber by triggering avoidance response. The available data provide evidences that PYR is potentially toxic for many aquatic species, affecting survival, reproduction, feeding, growth, and that it can disturb the environmental quality with no direct effect at the individual level by inducing organisms to migrate to less impacted areas.

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Biocontrol of Penicillium digitatum by native Bacillus and Pseudomonas strains isolated from orange peel

Vanina Ferreira,

Bello,

Fernanda Rivadeneira

et al. 2023

Biological Control

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Characterization of sensitivity of grove and packing house isolates of Penicillium digitatum to pyrimethanil

Cited by 4 publications

References 9 publications

Effectiveness of Trichoderma strains isolated from the rhizosphere of citrus tree to control Alternaria alternata , Colletotrichum gloeosporioides and Penicillium digitatum A21 resistant to pyrimethanil in post‐harvest oranges ( Citrus sinensis L. (Osbeck))

Effectiveness of Trichoderma strains isolated from the rhizosphere of citrus tree to control Alternaria alternata , Colletotrichum gloeosporioides and Penicillium digitatum A21 resistant to pyrimethanil in post‐harvest oranges ( Citrus sinensis L. (Osbeck))

The Ecotoxicity of Pyrimethanil for Aquatic Biota

Biocontrol of Penicillium digitatum by native Bacillus and Pseudomonas strains isolated from orange peel

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