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Showing 1 to 20 of 85 for “"Pseudomonas syringae"”.
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Pathogenicity Genes of Pseudomonas Syringae Pv. Tabaci Br2
Pseudomonas syringae pv. tabaci BR2 produces tabtoxin and causes wildfire disease on tobacco and bean plants. Tn5 mutants of PTBR2.024 were generated by using pGS9::Tn5. The Tn5 mutants wre prototrophs, resistant to kanamycin, nalidixic acid, and streptomycin, but sensitive to chloramphenicol. …
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Motility and Chemotaxis of Pseudomonas Syringae Subsp. Glycinea
Flagellar motility in Pseudomonas syringae subsp. glycinea (Psg), as determined by capillary assay, is best at sub-optimal growth temperatures (17-27 C) and inhibited at higher temperatures. Motility is optimal in the presence of 10$\sp{-5}$ M EDTA in potassium phosphate buffer at pH 6-7. Reduced …
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Elucidating three novel mechanisms of Pseudomonas syringae pathogenicity
Pseudomonas syringae is an important bacterial plant pathogen that, as a species, is known to cause disease on hundreds of different plant species. However, any individual pathovar of P. syringae typically only causes disease on one or a few plant species, which constitute the host range of the …
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Desarrollo de un método de detección sensible y específico de Pseudomonas syringae pv. syringae y Pseudomonas syringae pv. morsprunorum en cerezos
Las bacterias Pseudomonas syringae pv. syringae (Pss) y Pseudomonas syringae pv. morsprunorum (Psm) afectan al cerezo, especialmente a plantas jóvenes, y causan pérdidas económicas importantes a nivel mundial. Para contrarrestar esta situación, una de las medidas es poder contar con herramientas …
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New hypotheses about the origin of Pseudomonas syringae crop pathogens
Pseudomonas syringae is a common foliar plant pathogenic bacterium that causes diseases on many crop plants. We hypothesized that today's highly virulent P. syringae crop pathogens with narrow host range might have evolved after the advent of agriculture from ancestral P. syringae strains with wide …
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Characterization of a Pathogenicity Gene in Pseudomonas Syringae Pv. Tabaci Strain PTBR2.024
In planta growth curves showed that PTBR4.000 could not reach the same population level in tobacco or green bean leaves as PTBR4.000. A 4.2 kb Hin dIII-Eco RI fragment cloned downstream of a vector promoter was able to restore pathogenicity to PTBR4.000 in intact tobacco leaves. ORF1 and ORF2 were …
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Plasmid Structure and Function in Plant-Pathogenic Pseudomonas Syringae (outer-Membrane Proteins)
Thirty isolates of Pseudomonas syringae pv/ tabaci, pv. angulata, (pathogens on tobacco) pv. coronafaciens, and pv. striafaciens (pathogens on oat) were examined for plasmid DNAs. The strains were obtained from plants throughout the world and some over 30 years ago. Sixteen of the twenty-two …
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Kasvipatogeenin Pseudomonas syringae pv. tomato DC3000 -bakteerin tuottamien Hop-efektoriproteiinien merkitys taudin syntyyn
Pseudomonas syringae pv. tomato DC3000 -bakteeri (Pst DC3000) on kasvipatogeeni, joka aiheuttaa isäntäkasveissa täplätaudin, etenkin tomaatilla. Pst DC3000 -bakteerin koko genomi on sekvensoitu vuonna 2003 Buell ym., minkä jälkeen se on ollut tärkeä malliorganismi kasvipatologiassa. Pst DC3000 …
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Investigation of host cell wall degrading strategies of Pseudomonas syringae pv. actinidiae (Psa)
… by an outbreak of bacterial canker caused by Pseudomonas syringae pv. actinidiae (Psa). The invasion strategies and the mobility of Psa pathogen in the kiwifruit plant have not been fully described. Recent comparative genomic studies of Psa strains and other P. syringae pathovars that also …
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Survival of ice nucleation-active and genetically engineered inactive strains of Pseudomonas syringae
… and genetically engineered non-INA strains of Pseudomonas syringae was compared under starvation and freezing conditions. In starvation experiments, both strains displayed similar survival curves and recovery from starvation was nearly identical for the two strains. In freezing experiments, oat …
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CHARACTERIZATION OF CA²⁺-MEDIATED VIRULENCE AND MICROBIAL COMPETITION IN THE PLANT PATHOGEN PSEUDOMONAS SYRINGAE
… their physiology and coordinate virulence.Pseudomonas syringae, a model bacterial plant pathogen, uses a sophisticated arsenal of virulence factors, including the type III secretion system (T3SS), virulence factors, and phytotoxins, to manipulate plant cellular processes and suppress …
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CHARACTERIZATION OF BACTERIAL LIPOPOLYSACCHARIDES (Pseudomonas syringae pv. tomato and Pseudomonas syringae pv. apii) AND PECTINS OF TOMATO AND CELERY PLANTS (Lycopersicon esculentum and Apium graveolens) REGARDING THEIR POSSIBLE ROLE IN HOST/PATHOGEN-INTERACTION
… mit zwei vorbildlichen Systemen nämlich. Pseudomonas syringae pv. apii und seine Hauptrechner Apium graveolens (Sellerie) und P. s. pv. tomato und Lycopersicum esculentum (Tomato). Biochemische Analysen der LPS und der Pflanzenpektine wurden durchgeführt und die qualitativen und …
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Evaluation of Bioherbicidal Properties of Pseudomonas syringae pv. tagetis for Control of Canada thistle (Cirsium arvense)
… as a replacement for conventional herbicides is Pseudomonas syringae pv. tagetis, as it produces tagetitoxin, which causes chlorosis and stunting in plants of the Asteraceae. The objective of my thesis was to assess P. syringae pv. tagetis strains for use as an organic bioherbicide for Canada …
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Phenotypic and genotypic relationship between tabtoxin production and pathogenicity in Pseudomonas syringae pv. tabaci strain PTBR2.024
Pseudomonas syringae pv. tabaci strain PTBR2.024 produces tabtoxin and causes wildfire disease on tobacco and green bean. PTBR7.000, a Tn5 mutant of PTBR2.024, does not produce tabtoxin, is nonpathogenic on tobacco and is prototrophic. A 3-kb fragment from a genomic library of the parent strain …
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Investigating NLR-mediated immunity and Pseudomonas syringae effector interactions with two MACPF domain proteins in Arabidopsis thaliana.
… by effectors of the Arabidopsis pathogen Pseudomonas syringae pv tomato. From this screen I identified one effector that may interact with NSL1. Collectively, this work provides novel insight into the molecular aspects of host-pathogen interactions.
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Getting out of the water and into the air: Understanding aerosolization of the bacterium Pseudomonas syringae from aquatic environments
… distances through the atmosphere. The bacterium Pseudomonas syringae can be found in aquatic environments and in the atmosphere and may express an ice nucleation protein (bacteria expressing the protein are Ice+ and bacteria not expressing the protein are Ice-). Ice+ bacteria may be involved in …
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Effects of simulated acidic precipitation on the colonization and ice nucleation activity of Pseudomonas syringae pv. syringae and Erwinia herbicola
Precipitation over the eastern United States has been increasing in acidity, particularly within the last three decades. The average annual pH of rain in this area is about 4.2. The foliar surface, or phylloplane, of soybean can be damaged by rain acidified to pH 2.9. Simulated acidic precipitation …
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Development of genetic mapping and DNA markers for tolerance to bacterial stem blight caused by Pseudomonas syringae pv. syringae in alfalfa
… constantly facing biotic and abiotic challenges.Pseudomonas syringae is a gram-negative bacterial pathogen capable of affecting a wide range of plants around the world. Pseudomonas syringae pv. syringae is the causal agent of bacterial stem blight (BSB) of alfalfa and losses can reach 50% of the …
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