نتایج جستجو برای: xylella fastidiosa
تعداد نتایج: 945 فیلتر نتایج به سال:
Pierce’s disease (PD), a lethal disease of grapevine, is caused by Xylella fastidiosa, a Gram-negative, xylem-limited bacterium, transmitted from plant to plant by xylem feeding insects.1 Strains of X. fastidiosa have also been associated with diseases that cause tremendous losses in many other economically important plants including citrus.2 Although the complete genome sequence of X. fastidio...
Here, we describe the draft genome sequences of two Xylella fastidiosa strains: Xf6c and Xf32, which have been obtained from infected coffee plants in Brazil, and are associated with the disease known as coffee leaf scorch (CLS).
Xylella fastidiosa (Xf) causes wilt disease in plants and is responsible for major economic and crop losses globally. Owing to the public importance of this phytopathogen we embarked on a comparative analysis of the complete genome of Xf pv citrus and the partial genomes of two recently sequenced strains of this species: Xf pv almond and Xf pv oleander, which cause leaf scorch in almond and ole...
Xylella fastidiosa is a xylem-limited bacterium that causes citrus variegated chlorosis disease in sweet orange. There is evidence that X. fastidiosa interacts with endophytic bacteria present in the xylem of sweet orange, and that these interactions, particularly with Methylobacterium mesophilicum, may affect disease progress. However, these interactions cannot be evaluated in detail until eff...
A genome-wide search was performed to identify simple sequence repeat (SSR) loci among the available sequence databases from four strains of Xylella fastidiosa (strains causing Pierce's disease, citrus variegated chlorosis, almond leaf scorch, and oleander leaf scorch). Thirty-four SSR loci were selected for SSR primer design and were validated in PCR experiments. These multilocus SSR primers, ...
Xylella fastidiosa infects a wide range of plant hosts and causes economically serious diseases, including Pierce's disease (PD) of grapevines. X. fastidiosa biocontrol strain EB92-1 is infectious to grapevines but does not cause symptoms. The draft genome of EB92-1 reveals that it may be missing 10 potential pathogenicity effectors.
Quantification 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...
چکیده تعیین ویژگی های مولکولی و بیولوژیکی xylella fastidiosa در ایران به وسیله ی: ناصر امانی فر علائم بیماری های ناشی از xylella fastidiosa از سال ها قبل در برخی از مناطق ایران روی درختان میوه و غیر مثمر به ویژه بادام و مو مشاهده شده است. بیماری با علائم برگ سوختگی در بادام از طریق پیوند به بادام رقم مامایی در شرایط گلخانه قابل انتقال بود. آلودگی تعدادی از نمونه های دارای علائم از بادا...
Computational analyses of four bacterial genomes of the Xanthomonadaceae family reveal new unique genes that may be involved in adaptation, pathogenicity, and host specificity. The Xanthomonas genus presents 3636 unique genes distributed in 1470 families, while Xylella genus presents 1026 unique genes distributed in 375 families. Among Xanthomonas-specific genes, we highlight a large number of ...
Title of Document: Chemotherapeutic Treatment Options to Manage Xylella fastidiosa in Shade Trees Darren DeStefano Master of Natural Resource Sciences 2005 Directed By: Associate Professor Joseph Sullivan Natural Resource Sciences and Landscape Architecture Xylella fastidiosa is a fastidious, xylem-limited, broad spectrum, bacterial plant pathogen native to the Americas, causing substantial eco...
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