Pseudomonas syringaeStrains ESC-10 and ESC-11 Survive in Wounds on Citrus and Control Green and Blue Molds of Citrus

Bull, Carolee T.; Stack, James P.; Smilanick, Joseph L.

doi:10.1006/bcon.1996.0476

Cited by 73 publications

(41 citation statements)

References 33 publications

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“…Moreover, although the biocontrol activity of antagonistic bacteria and yeasts has been demonstrated on a variety of commodities, the mode of action of these microbial biocontrol agents has not been fully elucidated. In the case of bacterial antagonists, it has been suggested that their biocontrol activity may be partly associated with the production of antibiotics [37,38]. Antagonistic yeasts have been selected mainly for their capability to rapidly colonize and grow in surface wounds, and subsequently to out compete the pathogen for nutrients and space.…”

Section: Resultsmentioning

confidence: 99%

Different Approaches of Bio-control Agents for Controlling Root Rot Incidence of Some Vegetables under Greenhouse Conditions

Abdel-Kader¹,

El-Mougy²,

Aly³

et al. 2012

IJAF

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Different approaches of some antagonistic fungal, bacterial and yeast agents applied as seed treatment or soil drench was evaluated against various soil-borne pathogens causing vegetables root rot disease under greenhouse conditions. The tested pathogenic fungi were Alternaria solani Fusarium solani, F. oxysporum, Rhizoctonia solani, Sclerotium rolfsii, Macrophomina phaseolina and Pythium sp., meanwhile the tested bio-agents were Trichoderma harzianum, T. Viride and Bacillus subtilis, Pseudomonas flourescens and Sacchromyces serivisae. Significant reduction in the disease incidence was observed in bio-agent treatments in comparison with untreated control. Root rot incidence, at pre-emergence stage, significant effect was observed in bio-agent treatments as seed soaking comparing with soil drench treatment. The treated seeds showed a protective effect for seeds germination against the invasion by soil-borne pathogenic fungi. Meanwhile, soil drenched with different bio-agents showed more efficacy for reducing root rot incidence at post-emergence growth stage of tested vegetables, Cucumber, Cantaloupe, Tomato and Pepper. The obtained results revealed that the antagonist T. harzianum showed significant superior effect to reduce diseases incidence followed by B. subtilis. Also, the antagonists T. viride and P. fluorescence occupied significantly the second degree for reducing root rot incidence. The treatment with S. serevisiae had the lowest effect on disease incidence, although it significantly lesser than check control treatment. The present study demonstrates that application of bio-agents as seed treatment and soil drench may be useful for controlling root rot disease in field.

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Section: Resultsmentioning

confidence: 99%

Different Approaches of Bio-control Agents for Controlling Root Rot Incidence of Some Vegetables under Greenhouse Conditions

Abdel-Kader¹,

El-Mougy²,

Aly³

et al. 2012

IJAF

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“…Our studies confirmed the potential of this species to control P. expansum, B. cinerea and also R. stolonifer in different cultivars of apple and pears. Many biotic and abiotic factors, such locations, disease and fruit variety could influence the magnitude of control performed by the antagonists (Bull et al 1997). In fact Biosave 10 and Biosave 110 applied in the same conditions do not control diseases to the same extent Marchi 1992, Jeffers andWright 1994).…”

Section: Discussionmentioning

confidence: 99%

Biocontrol of postharvest decay using a new strain of Pseudomonas syringae CPA-5 in different cultivars of pome fruits

Nunes

Usall²,

Teixidó³

et al. 2008

AFSci

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Epiphytic micro-organisms isolated from fruits and leaves surfaces of apples from different orchards were screened for antagonistic activity against Penicillium expansum. From all micro-organisms tested the new strain CPA-5 of Pseudomonas syringae, isolated from organic orchard, was selected. This strain was very effective against Botrytis cinerea, P. expansum and Rhizopus stolonifer at various antagonist and pathogen concentrations on 'Golden Delicious' apple, and 'Blanquilla', 'Rocha' and 'Conference' pear. Under cold storage conditions and in semi-commercial trials P. syringae (CPA-5) significantly reduced development of P. expansum and B. cinerea on 'Golden Delicious' apple, and 'Blanquilla' and 'Rocha' pears. Control of P. expansum equal to the fungicide imazalil was obtained with CPA-5 at 10 8 cfu ml -1 on 'Gold Delicious' apple and 'Rocha' pear. The populations of P. syringae CPA-5 increased more than 100-fold during the first 50 days, and then remained stable on apple, and slightly decreased on pears. This indicates the high capacity of this antagonist to colonize wound surfaces of pome fruits under cold storage conditions.

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“…Various microorganisms, including Bacillus subtilis, B. pumilus, Burkholderia cepacia, Pseudomonas syringae, P. glathei, Pantoea agglomerans, Candida famata, C. oleophila, Trichoderma viride, and Myrothecium roridum have been shown to have fungistatic or fungicidal effects to P. digitatum and have been explored, with some success, for reducing postharvest green mold decay in citrus [5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Inhibition of Penicillium digitatum and Citrus Green Mold by Volatile Compounds Produced by Enterobacter cloacae

Chen¹,

Peng²

2016

J Plant Pathol Microbiol

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Penicillium digitatum causes green mold decay on citrus fruit, resulting in severe economic losses to citrus growers and packers worldwide. The present study is to evaluate the control of citrus green mold by volatiles produced by Enterobacter cloacae. An E. cloacae strain isolated from plant rhizospheres was able to produce three volatile organic compounds, which were identified as butyl acetate, phenylethyl alcohol, and 4,5-dimethyl-1-hexene by GC/MS chromatography. The volatile compounds produced by E. cloacae inhibited conidial germination and hyphal elongation of P. digitatum and reduced green mold severity. E. cloacae cultured at temperatures ranging from 16°C to 28°C, at pH values ≤6, or in a substrate carrier (sphagnum moss, vermiculite, or perlite) provided superior control against P. digitatum. A laboratory formulation using E. cloacae and perlite protected citrus fruit from green mold up to 22 days and its effectiveness outperformed fungicide application at room temperature (~25°C). The results implicate practical application of E. cloacae as a biofumigant for controlling citrus postharvest decay caused by P. digitatum. Significantly, the study provides a model for future research on how to formulate an effective biocontrol agent for disease management.

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Pseudomonas syringaeStrains ESC-10 and ESC-11 Survive in Wounds on Citrus and Control Green and Blue Molds of Citrus

Cited by 73 publications

References 33 publications

Different Approaches of Bio-control Agents for Controlling Root Rot Incidence of Some Vegetables under Greenhouse Conditions

Different Approaches of Bio-control Agents for Controlling Root Rot Incidence of Some Vegetables under Greenhouse Conditions

Biocontrol of postharvest decay using a new strain of Pseudomonas syringae CPA-5 in different cultivars of pome fruits

Inhibition of Penicillium digitatum and Citrus Green Mold by Volatile Compounds Produced by Enterobacter cloacae

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