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Showing 1 to 20 of 68 for “"Erwinia"”.
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Motility and Chemotaxis of Erwinia Amylovora
… and cultural factors influence the motility of Erwinia amylovora by affecting either flagella synthesis of motility itself. Flagella synthesis is temperature dependent with an optimum at 18-23(DEGREES)C. However, bacterial cells grown at these temperatures are actively motile even at …
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Motility and Chemotaxis of Erwinia Herbicola and Its Effect on Erwinia Amylovora (Biological Control, Phytobacteriology, Fire Blight)
… required for motility and chemotaxis in Erwinia herbicola (112Y) were determined by the capillary assay. Actively motile cells were selected from the periphery of swarming colonies grown on soft agar (0.25%) modified Emerson's medium plates minus the ingredient nutrient broth. The optimum …
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Regulation of amylovoran biosynthesis in Erwinia amylovora
… blight, caused by the gram-negative bacterium Erwinia amylovora, is one of the most devastating bacterial diseases for the apple and pear industry. Two pathogenicity factors strictly required for E. amylovora to cause disease are the exopolysaccharide amylovoran and the type III secretion …
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Characterization of major virulence regulators of Erwinia amylovora
Erwinia amylovora is the causal agent of the devastating fire blight disease which is a major concern to the apple and pear industry. Fire blight costs millions of dollars of economic losses all over the world. Exopolysaccharide (EPS) amylovoran and type III secretion system (T3SS) are two major …
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Transfer of plasmids by genetically-engineered Erwinia carotovora
The ability of a genetically-engineered <i>Erwirzia carotovora</i> subsp. <i>carotovora</I> (Ecc) strain to transfer recombinant chromosomal DNA or plasmids to wildtype Ecc or <i>Pseudomonas fluorescens</i> was tested on filters, within soil microcosms, and <i>in planta</i>. Ecc was engineered by …
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Posttranscriptional and posttranslational regulation of virulence in erwinia amylovora
Erwinia amylovora is the causal agent of fire blight, the most destructive bacterial disease of the Rosaceae family plants. Two virulence factors, the type III secretion system (T3SS) and the exopolysaccharide (EPS) amylovoran, are strictly required for its pathogenicity. Our previous studies have …
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Elucidation of the osmoregulatory locus, ompRZ, in Erwinia chrysanthemi
… over the other, depending on osmotic conditions. Erwinia chrysanthemi, which causes "soft rot" in a wide range of economically important crops, has been demonstrated to contain porin-like proteins similar to OmpF and OmpC. The expression of these porins was regulated in a similar manner to OmpF …
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Sobrevivência e herança da resistência a Erwinia psidii em eucalipto
Erwinia psidii é, atualmente, um dos principais patógenos da eucaliptocultura no Brasil. Embora seu manejo tem sido baseado no plantio de clones resistentes, pouco se sabe a respeito do período de sobrevivência de E. psidii e o modelo de herança da resistência de eucalipto à doença. Neste estudo, …
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Genome-wide studies of virulence-associated mechanisms in Erwinia amylovora
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Molecular mechanisms of pathogenesis incited by Erwinia carotovora subsp. carotovora
Erwinia carotovora subsp. Carotovora (Ecc) incites soft-rot on many plants. It is believed that soft-rot is due to the concerted activity of extracellular enzymes. Recombinant DNA techniques were used to study the molecular basis of pathogenesis incited by Ecc. Specifically, a clone library of Ecc …
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Erwinia carotovora extracellular proteases: characterization and role in soft rot
<u>Erwinia carotovora</u> subsp. <u>carotovora</u> (Ecc) strain EC14, a Gram-negative bacterium, causes soft rot on several crops, including potato. Maceration of potato tuber tissue is caused by secreted pectolytic enzymes. Other cell-degrading enzymes may also have roles in pathogenesis, …
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Environmental risk assessment of a genetically-engineered microorganism, Erwinia carotovora
… risk from releasing an engineered strain of Erwinia carotovora. A terrestrial microcosm system for use in GEM risk assessment studies was developed for use in assessing alterations of microbial structure and function that may be caused by introducing the engineered strain of E. carotovora. …
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Characterization of a novel virulence determinant in Erwinia carotovora subspecies atroseptica SCRI1043
… on the characterization of the gene rsmS in Erwinia carotovora subsp. atroseptica (Eca). Eca is a phytopathogenic Gram-negative bacteria, producing virulence factors, such as plant cell wall degrading enzymes {PCWDEs), which enable the initiation and maintenance of host plant invasion. rsmS …
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Genes implicados en la adaptación de Erwinia chrysanthemi al microambiente de la planta
… un putativo transportador tipo ABC de Erwinia chrysanthemi que se ha denominado YbiT. El gen contiguo a ybiT, denominado pab, muestra similitud de secuencia con proteínas de biosíntesis de antibióticos. El mutante ybiT (BT117) retiene toda la virulencia, pero muestra una capacidad …
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Physiological and genetic evidence for an OmpB signal transduction system in Erwinia chrysanthemi
… OmpC in response to medium osmolarity in E. coli.Erwinia chrysanthemi has been found to be sensitive to desication. Proliferation of soft rot, caused by this organism, has also been associated with irrigation. E.chrysanthemi has also been observed to respond to changes in medium osmolarity. …
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Inheritance of Resistance in Dent Corn to Wheat Streak Mosaic Virus and Erwinia Stewartii
Host resistance is the primary means of controlling diseases of field crops, such as dent corn (Zea mays L.). Knowledge of the inheritance of resistance facilitates its incorporation into agronomically desirable germplasm. Relatively little is known about the inheritance of resistance in corn
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