Inhibitory effect of Pseudomonas spp. on the development of Botrytis cinerea and Penicillium expansum

Bryk, H.; Dyki, B.; Sobiczewski, P.

doi:10.17221/467-pps

Cited by 6 publications

(5 citation statements)

References 19 publications

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“…Most predominant microflora were Bacillus and Pseudomonas sp. This is in conformity with Bryk et al, (2004) who isolated two strains of Pseudomonas sp. (B194 and B224) from apple leaves.…”

Section: Estimation Of Predominant Epiphytes By Fruit Washing Methodssupporting

confidence: 92%

Studies on Epiphytic Microflora on Apple (Malus domestica Borkh.) Fruits and Leaves

Banoo¹,

Shahnaz²,

Banday³

et al. 2020

Int.J.Curr.Microbiol.App.Sci

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“…Most predominant microflora were Bacillus and Pseudomonas sp. This is in conformity with Bryk et al, (2004) who isolated two strains of Pseudomonas sp. (B194 and B224) from apple leaves.…”

Section: Estimation Of Predominant Epiphytes By Fruit Washing Methodssupporting

confidence: 92%

Studies on Epiphytic Microflora on Apple (Malus domestica Borkh.) Fruits and Leaves

Banoo¹,

Shahnaz²,

Banday³

et al. 2020

Int.J.Curr.Microbiol.App.Sci

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“…The greatest action of bacteria was observed after 48 h of incubation in mixture of 3:5. These results are in agreement with observations by some researchers (Janisiewicz and Korsten, 2002;Bryk et al, 2004), who demonstrated that P. syringae controlled growth of P. expansum.…”

Section: Antagonism Between Bacterium and Fungussupporting

confidence: 93%

Evaluation of gamma irradiation effect and Pseudomonas flourescens against Penicillium expansum

Mostafavi¹,

Mirmajlessi²,

Fathollahi³

et al. 2011

Afr. J. Biotechnol.

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Antagonistic effect of Pseudomonas fluorescens and influence of gamma irradiation on the development of Penicillium expansum, the causal agent of postharvest disease on apple fruit was studied. P. fluorescens was originally isolated from rhizosphere of the apple trees. Suspension of P. fluorescens and P. expansum were mixed in test tubes in proportions of 1:5, 2:5, 3:5 and 4:5 (V/V). The inhibitory effect depended on the proportion of the bacterium to the fungus in the mixture. The best inhibition was observed after 48 h at the ratio of 3:5. Gamma irradiation above 3 KGy completely inhibited mycelial growth, while the highest dose around 600 Gy mostly killed P. expansum spores. Our experiment demonstrates that the combination of gamma irradiation and P. fluorescens was more effective in reducing P. expansum growth, than either treatment alone and that the integration of irradiation and antagonist treatments can be more effective. The results of this study show that improved control by irradiation at labeled dose in combination with antagonist could allow direct incorporation of the biocontrol agent. Thus, the combination of the P. fluorescens with gamma irradiation showed an impressive effect on increasing applied range of irradiation for postharvest control by decreasing of dose rate.

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“…The microscopic examination of B. cinerea germinated conidia exposed to FC treatments demonstrated that FC substantially altered morphology of conidia and germ tubes and this effect was linked to the FC concentration. The morphological changes in the germ tubes suggest that the treatment had changed the developmental pattern of the germinating spores, an observation that has been reported in other studies evaluating the effect of synthetic fungicides, NPs or BCAs on fruit pathogens (Jijakli and Lepoivre 1998;Rosslenbroich and Stuebler 2000;Bryk et al 2004;Reglinski et al 2010), although this effect is reported for first time in this study for fatty acid-based NPs. Changes in cell morphology may be due to the characteristics of the viscose FC matrix formed around B. cinerea conidia, which may interfere with Figure 6 Effect of fatty acid-based product Foodcoat (FC) field applications on fungal populations on Sauvignon blanc grape berries at harvest (Marlborough, NZ, 2011).…”

Section: Discussionsupporting

confidence: 77%

“…The morphological changes in the germ tubes suggest that the treatment had changed the developmental pattern of the germinating spores, an observation that has been reported in other studies evaluating the effect of synthetic fungicides, NPs or BCAs on fruit pathogens (Jijakli and Lepoivre ; Rosslenbroich and Stuebler ; Bryk et al . ; Reglinski et al . ), although this effect is reported for first time in this study for fatty acid–based NPs.…”

Section: Discussionmentioning

confidence: 99%

Mode of action of a fatty acid-based natural product to control Botrytis cinerea in grapes

et al. 2014

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Aims: To investigate the efficacy and mode of action of the fatty acid-based product Foodcoat â (FC) against Botrytis cinerea. Methods and Results: In vitro, in vivo and field experiments were carried out to investigate the effect of different concentrations of FC on B. cinerea germination and infection of grape leaves and berries, using three selected isolates and comparing results with those achieved by the commercialized product Protector HML (PRT). Furthermore, the effect of field applications of FC on the grape berry microbiota was investigated. FC reduced B. cinerea germination and grape berry severity by up to 54 and 96%, respectively, compared with the untreated controls. Conclusions: Foodcoat demonstrated efficacy that was equal or greater than the registered product, PRT. A multiple mode of action was hypothesized for FC suppression of B. cinerea, including: inhibition of germination and germ tube alteration, protection of host green tissues and enhancement of the natural yeast populations on the berry surface. Significance and Impact of the Study: The efficacy of both products has been quantified and their modes of action described, suggesting them for field applications against B. cinerea, alone or in combined strategies. This is also the first report of a fatty acid-based product stimulating natural yeast populations on grape berries.

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Inhibitory effect of Pseudomonas spp. on the development of Botrytis cinerea and Penicillium expansum

Cited by 6 publications

References 19 publications

Studies on Epiphytic Microflora on Apple (Malus domestica Borkh.) Fruits and Leaves

Studies on Epiphytic Microflora on Apple (Malus domestica Borkh.) Fruits and Leaves

Evaluation of gamma irradiation effect and Pseudomonas flourescens against Penicillium expansum

Mode of action of a fatty acid-based natural product to control Botrytis cinerea in grapes

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