Pierce S Disease
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Field resistance of potato cultivars to foliar early blight and its relationship with foliage maturity and tuber skin types
Three field experiments were carried out to assess the level of resistance of several cultivars to early blight (EB) and to examine the association between host resistance and either foliage maturity or tuber skin types. A total of 26 cultivars were used in Exps. 1 and 2, and 24 in Exp. 3. Plants were inoculated with isolates of Alternaria grandis at 31 days
Trop. plant pathol.. Publicado em: 2014-08
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2. Análise faunística de cigarrinhas (Hemiptera: Cicadellidae) na cultura da videira no Rio Grande do Sul
In some American countries, grapevines are affected by Pierce's disease (PD), which is caused by a particular strain of Xylella fastidiosa not yet reported in Brazil. In order to investigate the potential for PD spread in Brazil in case of pathogen introduction, we conducted a faunistic analysis of leafhoppers (Hemiptera: Cicadellidae) associated to vineyard
Neotropical Entomology. Publicado em: 2010-04
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3. Evidences of siderophores synthesis by Grapevine Xylella fastidiosa, causal agent of pierce's disease, through instrumental approaches
Os sideróforos provenientes de Xylella fastidiosa de videiras foram investigados. Tais metabólitos seqüestram ferro, um elemento essencial, do hospedeiro, o que os torna um potencial fator de patogenicidade. Em um meio de cultura em placa com limitação de ferro, tais sideróforos foram detectados pela reação com o complexo cromoazurol S (CAS). Diferen
Journal of the Brazilian Chemical Society. Publicado em: 2010
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4. Análise faunística de cigarrinhas (Hemiptera: Cicadellidae) e flutuação populacional de potenciais vetores de Xylella fastidiosa em vinhedos nos estados do Rio Grande do Sul e Pernambuco, Brasil / Faunistic analyses of leafhoppers (Hemiptera: Cicadellidae) and seasonal fluctuation of potential vectors of Xylella fastidiosa em vineyards of the States of Rio Grande do Sul and Pernambuco, Brazil
Xylella fastidiosa é uma bactéria fitopatogênica transmitida por insetos vetores conhecidos como cigarrinhas (Hemiptera: Cicadellidae, Subfamília Cicadellinae). Uma estirpe desta bactéria causa o Mal de Pierce em videira nos EUA e México. No Brasil, esta bactéria ainda não foi detectada colonizando videira, embora esta cultura tenha importância em a
Publicado em: 2008
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5. Production and characterization of gum operon mutants of Xylella fastidiosa cvc strain. / Produção e caracterização de mutantes do operon gum de Xylella fastidiosa.
Xylella fastidiosa is a fastidious, xylem restricted, gram.negative bacteria, that causes several economically important diseases as Pierce s disease of grapevine in USA and the Citrus Variegated Chlorosis (CVC) in Brasil. CVC affects severely the São Paulo State citriculture jeopardizing thousands of jobs and millions of dollars of incomes. The genome sequ
Publicado em: 2003
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6. Avaliação de genes diferencialmente expressos em Xylella fastidiosa em condições de adesão
Xy/ella fastidiosa is a gram-negative and xylem-limited bacterium, which is the causal agent of diseases of several important crops, such as the Citrus Variegated Chlorosis in Brazil and the Pierce s disease in grapevine. Due the colonization in environment under high pressure, it is believed that the bacterium presents mechanisms of aggregation among the ce
Publicado em: 2002
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7. Genetic Diversity of Pierce's Disease Strains and Other Pathotypes of Xylella fastidiosa
Strains of Xylella fastidiosa isolated from grape, almond, maple, and oleander were characterized by enterobacterial repetitive intergenic consensus sequence-, repetitive extragenic palindromic element (REP)-, and random amplified polymorphic DNA (RAPD)-PCR; contour-clamped homogeneous electric field (CHEF) gel electrophoresis; plasmid content; and sequencin
American Society for Microbiology.
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8. Thermal Inactivation of Newcastle Disease Virus I. Coupled Inactivation Rates of Hemagglutinating and Neuraminidase Activities
The thermal stability of Newcastle disease virus has been characterized in terms of the rate constants for inactivation of hemagglutinating activity (HA), neuraminidase activity (NA), and infectivity. Inactivation of HA results in the concomitant loss of NA. Infectivity, however, is much more thermolabile. Disintegration of the virus particle is not responsi