Citrus Variegated Chlorosis: Detection of Xylella fastidiosa in Symptomless Trees
نویسندگان
چکیده
منابع مشابه
Stable transformation of the Xylella fastidiosa citrus variegated chlorosis strain with oriC plasmids.
Xylella fastidiosa is a gram-negative, xylem-limited bacterium affecting economically important crops (e.g., grapevine, citrus, and coffee). The citrus variegated chlorosis (CVC) strain of X. fastidiosa is the causal agent of this severe disease of citrus in Brazil and represents the first plant-pathogenic bacterium for which the genome sequence was determined. Plasmids for the CVC strain of X....
متن کاملComparative analyses of the complete genome sequences of Pierce's disease and citrus variegated chlorosis strains of Xylella fastidiosa.
Xylella fastidiosa is a xylem-dwelling, insect-transmitted, gamma-proteobacterium that causes diseases in many plants, including grapevine, citrus, periwinkle, almond, oleander, and coffee. X. fastidiosa has an unusually broad host range, has an extensive geographical distribution throughout the American continent, and induces diverse disease phenotypes. Previous molecular analyses indicated th...
متن کاملPopulation Structure of Xylella Fastidiosa of Citrus Variegated Chlorosis in Sao Paulo State: from a Small Branch to the Whole State
The economic and social importance of citrus production in Brazil and the high economic loss caused by citrus variegated chlorosis (CVC) in Brazilian orchards have resulted in an extensive research program involving the sequencing of the genome of Xylella fastidiosa (Xf) subsp. pauca (Xf-pa, strain 9a5c), the causal agent of CVC. Other genomes of Xf-pa are currently being sequenced. Despite the...
متن کاملNutritional deficiency in citrus with symptoms of citrus variegated chlorosis disease.
It is well known that citrus plants that have been infected by Xylella fastidiosa display nutritional deficiencies, probably caused by production of extracellular polymers by the bacteria that block normal nutrient flow through the xylem. The aim of this work was to study the mineral composition of specific foliar areas in different stages of infection in citrus. Thus, the concentrations of mac...
متن کاملQuantification of Xylella fastidiosa from Citrus Trees by Real-Time Polymerase Chain Reaction Assay.
ABSTRACT Xylella fastidiosa is the causal agent of citrus variegated chlorosis (CVC), a destructive disease of sweet orange cultivars in Brazil. Polymerase chain reaction (PCR)-based assays constitute the principal diagnostic method for detection of these bacteria. In this work, we established a real-time quantitative PCR (QPCR) assay to quantify X. fastidiosa in naturally and artificially infe...
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ژورنال
عنوان ژورنال: International Organization of Citrus Virologists Conference Proceedings (1957-2010)
سال: 1993
ISSN: 0074-7203,2313-5123
DOI: 10.5070/c56j528431