Identification of an<i>Erwinia</i>sp. different from<i>Erwinia amylovora</i>and responsible for necrosis on pear blossoms

Roselló, Montserrat; Peñalver, J.; Llop, Pablo; Gorris, M. T.; Cambra, M.; López, Marı́a M.; Chartier, R.; Garcia, F.; Montón, Carmina

doi:10.1080/07060660609507268

Cited by 27 publications

(34 citation statements)

References 25 publications

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“…Results suggested that the strains of causal agent for flower necrosis of red poppy displayed the same phenotypic characteristics (Table 2) with Erwinia piriflorinigrans (Roselló et al 2006;López et al 2011).…”

Section: Discussionmentioning

confidence: 68%

“…Unlike Erwinia amylovora, the causal agent of fire blight, E. piriflorinigrans attacks only blossoms and no other parts of plants are apparently affected (Roselló et al 2006). Other usual fire blight hosts in the same area did not display any symptoms of infection with this Erwinia species (Smits et al 2013).…”

Section: Discussionmentioning

confidence: 93%

“…The control plants were inoculated with sterile distilled water. Different bioassays (immature pear fruits, detached pear shoots, and detached pear blossoms) were carried out with representative strains as described by Roselló et al (2006).…”

Section: Pathogenicity Testmentioning

confidence: 99%

“…The species Erwinia piriflorinigrans, a Gram-negative plant-pathogenic bacterium was described to cause necrotic pear blossoms (López et al 2011;Roselló et al 2006). Unlike Erwinia amylovora, the causal agent of fire blight, E. piriflorinigrans affects blossoms and no other parts of plants (Roselló et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Unlike Erwinia amylovora, the causal agent of fire blight, E. piriflorinigrans affects blossoms and no other parts of plants (Roselló et al 2006). …”

Section: Introductionmentioning

confidence: 99%

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Isolation and characterization of Erwinia piriflorinigrans causal agent flower necrosis of red poppy

Amirabad

Khodakaramian

2017

Australasian Plant Pathol.

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In 2016, necrosis symptoms was observed on stem and flower of red poppy (Papaver rhoeas) in Hamadan province of Iran. Symptomatic samples were collected and suspicious bacterial agent was isolated on nutrient agar medium. The phenotypic features of the bacterial strains were characterized and some molecular traits were examined. The bacterial strains phenotypically showed a high similarity to the members of Enterobacteriaceae, in particular Erwinia piriflorinigrans. All tested strains were pathogenic on red poppy and blossoms of pear under greenhouse condition. The phylogenetic analysis based on 16S rRNA and atpD genes sequences showed that representative strains were very similar to Erwinia piriflorinigrans. This is the first report of the presence of Erwinia piriflorinigrans as a causal agent of flower necrosis of red poppy worldwide.

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Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 93%

Section: Pathogenicity Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Unlike Erwinia amylovora, the causal agent of fire blight, E. piriflorinigrans affects blossoms and no other parts of plants (Roselló et al 2006). …”

Section: Introductionmentioning

confidence: 99%

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Isolation and characterization of Erwinia piriflorinigrans causal agent flower necrosis of red poppy

Amirabad

Khodakaramian

2017

Australasian Plant Pathol.

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Erwinia amylovora: Modern Methods for Detection and Differentiation

et al. 2008

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Erwinia amylovora is the causative agent of fire blight, a very destructive disease of numerous members of the rosaceae. The primary route of infection for host species, including commercially grown apple and pear, is the newly opened blossom. Susceptibility of flowers to infection for only a few days creates narrow window for infection. Not surprisingly, the risk of disease is related to E. amylovora population size. As a result, methods that supply quick, accurate and sensitive quantification of the pathogen population are important tools for determining the need for and the efficacy of disease control intervention. Plating samples and assessing colony-forming units constitutes an accurate and sensitive but slow method. Endpoint PCR is quick and sensitive but is not particularly amenable to quantification. We describe a real-time PCR procedure that provides all requirements. This method is based on chromosomal genes rather than on the pEa29 plasmid and so can be used to measure isolates that have been cured of the plasmid. The method has been used very successfully in directly quantify whole E. amylovora cells, in a variety of tissues from the orchard environment.

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Genomics of Erwinia amylovora and Related Erwinia Species Associated with Pome Fruit Trees

Zhao

2014

Genomics of Plant-Associated Bacteria

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Identification of anErwiniasp. different fromErwinia amylovoraand responsible for necrosis on pear blossoms

Cited by 27 publications

References 25 publications

Isolation and characterization of Erwinia piriflorinigrans causal agent flower necrosis of red poppy

Isolation and characterization of Erwinia piriflorinigrans causal agent flower necrosis of red poppy

Erwinia amylovora: Modern Methods for Detection and Differentiation

Genomics of Erwinia amylovora and Related Erwinia Species Associated with Pome Fruit Trees

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