Blackleg of Potato Plant Caused by a Serologically Specific Strain of Erwinia carotovora var. carotovora (Jones) Dye
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چکیده
منابع مشابه
Characterization of atypical Erwinia carotovora strains causing blackleg of potato in Brazil.
AIMS To determine the characteristics of bacteria associated with the blackleg disease of potato in Brazil and compare them with species and subspecies of pectolytic Erwinia. METHODS AND RESULTS Biochemical and physiological characteristics of 16 strains from blackleg-infected potatoes in State of Rio Grande do Sul, Brazil, were determined and differentiated them from all the E. carotovora su...
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Ten isolates of Erwinia carotovora ssp. carotovora (Ecc) were isolated from infected potato tubers of Picasso, Sante, and Nevskiy varieties collected from different regions in Kyrgyzstan. Isolates were identified as Erwinia carotovora ssp. carotovora (Ecc) by standard bacteriological techniques and pathogenicity tests on tubers and also by PCR analyses. Tests on the pathogenicity of E. carotovo...
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The polygalacturonase, clearly differentiated from polygalacturonic acid trans-eliminase, produced in the culture fluid of Erwinia carotovora was purified 56-fold by means of acetone precipitation, acetate butfer extraction, and two successive treatments by chromatography on carboxymethyl cellulose. The purified enzyme is specific for nonmethoxylated polygalacturonic acid. It shows an optimum p...
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The purified obelin was electrophoresed on 7 % polyacrylamide gels in Tris-glycine buffer, pH 8.3, containing 0.1 mM-EDTA. Gels stained with Coomassie Brilliant Blue showed a single band at the buffer front, which correlated in position with luminescent activity. This activity could be eluted from unstained gel slices by soaking them overnight in 0.1 mM-EDTA-lOmM-Hepes, pH 7.0, at 4°C. Obelin i...
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Erwinia carotovora ssp. carotovora (Ecc) is a Gram-negative enterobacterium that causes soft rot in potato and other plants. The main virulence factors, secreted extracellular enzymes, degrade the plant cell wall, leading to plant tissue maceration. Extracellular enzymes, cellulases, proteases and pectinolytic enzymes are subject to complex regulatory networks including quorum sensing, two-comp...
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ژورنال
عنوان ژورنال: Japanese Journal of Phytopathology
سال: 1975
ISSN: 1882-0484,0031-9473
DOI: 10.3186/jjphytopath.41.513