|Title:||Xylella fastidiosa Diversity||Authors:||Rodrigo Piacentini Paes De Almeida
Adam Christopher Retchless
|Keywords:||Xylella fastidiosa;vector-borne;Pierce's disease;Pear leaf scorch;xylem||Issue Date:||Aug-2013||Publisher:||農業試驗所||Related Publication(s):||農業試驗所特刊第173號||Start page/Pages:||107-116||Source:||2013 媒介昆蟲與蟲媒病害國際研討會專刊||Conference:||2013 媒介昆蟲與蟲媒病害國際研討會
Proceedings of the 2013 International Symposium on Insect Vectors and Insect-Borne Diseases
The bacterial plant pathogen Xylella fastidiosa causes disease in a wide range of host plant species. However, the species is very diverse phylogenetically and phenotypically. There are four broadly recognized subspecies of X. fastidiosa, which primarily cause disease in a host specific manner. Furthermore, clusters within subspecies may also be host specific. Despite the fact that host specificity is an important characteristic of X. fastidiosa phylogenetic clusters, the determinants of specificity are unknown; this bacterium lacks a type III secretion system and effectors, often associated with specificity in other bacterial plant pathogens. Furthermore, field populations have been shown to have large genetic diversity. Because horizontal gene
transfer, rearrangements, and other mutational processes appear to be frequent in X. fastidiosa, understanding how it evolves is of importance, especially in face of the fact that new diseases caused by this bacterium continue to emerge.
|Appears in Collections:||應用動物組|
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