Naturally Produced Aerosols of Pseudomonas glycinea

Venette, J. R.

doi:10.1094/phyto-65-737

Cited by 34 publications

(20 citation statements)

References 7 publications

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“…Nearly all the airborne bacteria detected were captured about 12 cm above the potted grass exposed to wind-driven rain or sprinkler irrigation, indicating that the bacteria may have been dispersed in ballistic particles generated by impaction of water droplets rather than in aerosols. Splash rather than aerosol dispersal is further indicated by the fact that the bacteria collected on medium in the Andersen sampler were only on the top stage, which is where ballistic particles would most likely be captured in this sampler (Venette & Kennedy, 1975), Previous work in our laboratory (unpublished) indicated that epiphytic populations of P. syringae on trees in nurseries can drop to undetect-able levels and then rise to detectable levels during different times of the year. This observation raised questions concerning the source of inoculum for resurgence of the populations.…”

Section: Discussionmentioning

confidence: 98%

Survival and dispersal of a marked strain of Pseudomonas syringae in a maple nursery

Malvick

Moore

1988

Plant Pathology

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A pathogenic Pseudomonas syringae strain resistant to rifampicin and nalidixic acid was sprayed upon and colonized maple twigs and perennial ryegrass. The inoculated twigs were sampled at intervals of 2‐3 weeks from July 1985 to September 1986, and epiphytic populations of the marked strain recovered during this time ranged from undetectable to 104 colony‐forming units/g. The results showed that this strain of P. syringae could overwinter on maple twigs and potentially serve as a source of inoculum in the spring. Aerial dispersal was also investigated. The marked strain inoculated onto grass growing in pots was detected on medium in inverted petri plates, on maple leaves and with an Andersen sampler positioned from 12 to 100 cm above the grass. The number of detectable cells that dispersed vertically upwards was low even in the presence of wind, rain, or irrigation water. The marked strain inoculated onto maple branches was isolated from grasses under the inoculated trees, showing that P. syringae was dispersed downward. Lateral dispersal of the marked strain from inoculated to uninoculated trees was not detected. The identity of the antibiotic‐resistant strain isolated from the trees and grasses was confirmed by DNA restriction‐fragment profile analysis.

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Section: Discussionmentioning

confidence: 98%

Survival and dispersal of a marked strain of Pseudomonas syringae in a maple nursery

Malvick

Moore

1988

Plant Pathology

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“…The physical proximity between soil and the various grapevine parts make this hypothesis very likely. In the most common grapevine training systems, the vine trunk and canopy are near the ground, facilitating the migration of micro-organisms from the soil to aerial parts of the plant through rain splash, high winds, insects, etc., [60], [61], [62], [63]. Mechanical soil management, like tillage, a common practice used to control weeds in vineyards, may also contribute to the migration of telluric micro-organisms to the aerial part of the plant.…”

Section: Discussionmentioning

confidence: 99%

Characterization of Epiphytic Bacterial Communities from Grapes, Leaves, Bark and Soil of Grapevine Plants Grown, and Their Relations

et al. 2013

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Despite its importance in plant health and crop quality, the diversity of epiphytic bacteria on grape berries and other plant parts, like leaves and bark, remains poorly described, as does the role of telluric bacteria in plant colonization. In this study, we compare the bacterial community size and structure in vineyard soils, as well as on grapevine bark, leaves and berries. Analyses of culturable bacteria revealed differences in the size and structure of the populations in each ecosystem. The highest bacteria population counts and the greatest diversity of genera were found in soil samples, followed by bark, grapes and leaves. The identification of isolates revealed that some genera – Pseudomonas, Curtobacterium, and Bacillus – were present in all ecosystems, but in different amounts, while others were ecosystem-specific. About 50% of the genera were common to soil and bark, but absent from leaves and grapes. The opposite was also observed: grape and leaf samples presented 50% of genera in common that were absent from trunk and soil. The bacterial community structure analyzed by T-RFLP indicated similarities between the profiles of leaves and grapes, on the one hand, and bark and soil, on the other, reflecting the number of shared T-RFs. The results suggest an interaction between telluric bacterial communities and the epiphytic bacteria present on the different grapevine parts.

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“…In general, the movement of bacterial plant pathogens over long distances is facilitated by water splash, wind‐driven rain and aerosol (Venette & Kennedy, ; Fitt et al ., ; Butterworth & McCartney, ; Upper & Hirano, ; Mundt et al ., ; Bock et al ., ), vectors such as man, mites and insects (Smith et al ., ; Civerolo, ; Brown, ) and via imported infected fruits (Civerolo, ; Brown, ) and planting materials (Goodman & Hattingh, ; Janse & Wenneker, ; EPPO, ). The latter is one of the most serious problems for effective control of bacterial disease of woody plants.…”

Section: Introductionmentioning

confidence: 99%

Xanthomonas arboricola disease of hazelnut: current status and future perspectives for its management

Lamichhane

Varvaro

2013

Plant Pathology

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This review presents an overview of bacterial blight, the predominant and emerging hazelnut disease worldwide. Here, disease symptomatologies, disease cycle, epidemiology, detection and identification methods are thoroughly discussed. It also focuses on plant health regulations and control strategies. The information reported throughout the review could help to give a better understanding of the hazelnut-bacterial blight pathosystem. A thorough knowledge of this pathosystem is important for the effective management of bacterial blight across the hazelnut orchards of the world.

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Naturally Produced Aerosols of Pseudomonas glycinea

Cited by 34 publications

References 7 publications

Survival and dispersal of a marked strain of Pseudomonas syringae in a maple nursery

Survival and dispersal of a marked strain of Pseudomonas syringae in a maple nursery

Characterization of Epiphytic Bacterial Communities from Grapes, Leaves, Bark and Soil of Grapevine Plants Grown, and Their Relations

Xanthomonas arboricola disease of hazelnut: current status and future perspectives for its management

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