Citrus Bacterial Canker Disease
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Response of sweet orange transgenic plants to infection of Xanthomonas axonopodis pv. citri and Candidatus Liberibacter asiaticus / Resposta de plantas transgenicas de laranja doce (Citrus sinensis L. Osb.) a infecção por Xanthomonas axonopodis pv. citri e Candidatus Liberibacter asiaticus
Huanglongbing (HLB), also known as greening, is the world most important citrus disease and it is caused by the bacterium Candidatus Liberibacter spp. This disease was originated from China and Africa, where were discovered the variants Ca. L. asiaticus and Ca. L. africanus, respectively. In 2004, the disease was detected in Brazil, where the variants asiati
Publicado em: 2008
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2. Gene expression analysis in sweet orange in response to Xanthomonas axonopodis pv. citri and Xanthomonas axonopodis pv. aurantifolii / Expressão diferencial de genes de laranja doce em resposta a infecção por Xanthomonas axonopodis pv. citri e axonopodis pv. aurantifolii
The most aggressive form of the citrus canker disease is caused by the bacteria Xanthomonas axonopodis pv. citri (Xac), which can infect all commercial varieties or species of citrus. In addition to Xac, Xanthomonas axonopodis pv. aurantifolii (Xaa) causes a weaker form of the disease, known as cancrose C, which is restricted to Mexican Lime (Citrus aurantif
Publicado em: 2008
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3. Strutural characterization of hypothetical proteins complex - XACb0032/XACb0033 from Xanthomonas axonopodis pv. citri / Caracterização estrutural do complexo de proteinas hipoteticas - XACb0032/XACb0033 da bacteria Xanthomonas axonopodis pv. citri
Xanthomonas axonopodis pv. citri (Xac) is the causative agent of citrus canker, a disease of significant economic importance worldwide. The molecular bases of the virulence mechanism are still unknown, but is believed that transfer of bacterial virulence proteins directly into the host cell cytoplasm is mediated by protein secretion systems, mainly type III
Publicado em: 2007
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4. Avaliação do potencial de agentes biológicos e seus produtos no controle da cancro cítrico causado por Xanthomonas axonopodis pv. citri
Asiatic citrus canker caused by Xanthomonas axonopodis pv. citri (Xac) (Hasse) is a disease known worldwide in the majority of commercial citrus production areas Limited strategies exist for suppression of citrus canker on more susceptible cultivars. The application of microorganisms as agent to control citrus canker is a great ecological progress to solve t
Publicado em: 2006
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5. Gene Expression in Xanthomonas axonopodis pv. citri Mediated by Plant Inducible Promoter (PIP-box) / "Expressão gênica em Xanthomonas axonopodis pv. citri controlada por promotores induzidos pela planta hospedeira"
The citrus canker, caused by the bacterial pathogen Xanthomonas axonopodis pv citri (Xac), is considered worldwide as one of the most important disease of citrus crop due to the lack of resistance in citrus plants and to the absence of efficient methods to control the disease. It was already shown that several genes involved in virulence and pathogenicity in
Publicado em: 2006
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6. Genetic transformation of citrus with bacterio-opsin (bo), cecropin and gus genes. / Transformação genética de citros com os genes bacteriopsina (bO), cecropina e gus.
Application of modern biotechnology techniques, as genetic transformation, has helped breeding programs of perennial plant species. This technique is already successfully used in citrus in several countries, mostly to the production of more disease-tolerant plants. Present work had three objectives as it follows: 1. genetic transformation of Rangpur lime roo
Publicado em: 2005
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7. Avaliação de agentes biológicos e seus produtos na incidência de lesões foliares do cancro cítrico
O cancro cítrico, causado por Xanthomonas axonopodis pv. citri (Xac), é um grave problema para a citricultura, pois o principal método de controle é a erradicação das plantas contaminadas. O controle biológico com microrganismos representa uma alternativa no controle da doença. Foram obtidos quatro isolados bacterianos, de lesões de cancro cítrico
Publicado em: 2004
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8. Evaluation of the Biolog Substrate Utilization System To Identify and Assess Metabolic Variation among Strains of Xanthomonas campestris pv. Citri
Metabolic fingerprints of 148 strains of Xanthomonas campestris pv. citri originating from 24 countries and associated with various forms of citrus bacterial canker disease (CBCD) were obtained by using the Biolog substrate utilization system. Metabolic profiles were used to attempt strain identification. Only 6.8% of the studied strains were correctly ident
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9. Genomic Relatedness of Xanthomonas campestris Strains Causing Diseases of Citrus †
Xanthomonas campestris strains that cause disease in citrus were compared by restriction endonuclease analysis of DNA fragments separated by pulsed-field gel electrophoresis and by DNA reassociation. Strains of X. campestris pv. citrumelo, which cause citrus bacterial spot, were, on average, 88% related to each other by DNA reassociation, although these stra
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10. Genetic analysis of hrp-related DNA sequences of Xanthomonas campestris strains causing diseases of citrus.
The hrp gene cluster of strains of Xanthomonas campestris that cause diseases of citrus was examined by Southern hybridization of genomic DNA and by restriction endonuclease analysis of enzymatically amplified DNA fragments of the hrp gene cluster. The hrp genes were present in all strains of the pathovars of X. campestris tested in this study, including str
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11. Detection of Xanthomonas campestris pv. citri by the polymerase chain reaction method.
pFL1 is a pUC9 derivative that contains a 572-bp EcoRI insert cloned from plasmid DNA of Xanthomonas campestris pv. citri XC62. The nucleotide sequence of pFL1 was determined, and the sequence information was used to design primers for application of the polymerase chain reaction (PCR) to the detection of X. campestris pv. citri, the causal agent of citrus b