Xylella taiwanensis(XYLETA)
Distribution details in Taiwan
Current pest situation evaluated by EPPO on the basis of information dated
2023: Present, restricted distribution
First recorded in: 1990s
First recorded in: 1990s
EPPO Reporting Service (1994/49) : first record on Asian pear (Pyrus pyrifolia).
EPPO Reporting Service (1996/204) : present on pear causing leaf scorch in several regions (only 2 out of 10 were free), with incidence from 5 to 43%.
EPPO Reporting Service (2007/187) : strains from Taiwan (causing pear leaf scorch) formed a cluster distinct from other known clusters of X. fastidiosa.
EPPO Reporting Service (2017/103) : further molecular and phylogenetic studies have shown that the bacterial strain isolated from P. pyrifolia in Taiwan is a new and distinct species which has been tentatively called Xylella taiwanensis sp. nov.
EPPO Reporting Service (1996/204) : present on pear causing leaf scorch in several regions (only 2 out of 10 were free), with incidence from 5 to 43%.
EPPO Reporting Service (2007/187) : strains from Taiwan (causing pear leaf scorch) formed a cluster distinct from other known clusters of X. fastidiosa.
EPPO Reporting Service (2017/103) : further molecular and phylogenetic studies have shown that the bacterial strain isolated from P. pyrifolia in Taiwan is a new and distinct species which has been tentatively called Xylella taiwanensis sp. nov.
* Chen J, Su C, Chang C (2006) Multigenic sequence comparison of Xylella fastidiosa pear leaf scorch strains from Taiwan to strains from Americas. Phytopathology 96(6) S23.
* Leu LS, Su CC (1993) Isolation, cultivation and pathogenicity of Xylella fastidiosa, the causal bacterium of pear leaf scorch disease in Taiwan. Plant Disease 77, 642-646.
* Review of Plant Pathology, 75(10), p 911 (6738).
* Su CC, Deng WL, Jan FJ, Chang CJ, Huang H, Shih HT, Chen J (2016) Xylella taiwanensis sp. nov. cause of pear leaf scorch disease in Taiwan. International Journal of Systematic and Evolutionary Microbiology 66(11), 4766-4771.
* Su CC, Chang CJ, Yang WJ, Hsu ST, Tzeng KC, Jan FJ, Deng WL (2012) Specific characters of 16S rRNA gene and 16S-23S rRNA internal transcribed spacer sequences of Xylella fastidiosa pear leaf scorch strains. European Journal of Plant Pathology 132(2), 132-203.
------- Pear strains from Taiwan could possibly belong to a new subspecies of X. fastidiosa.
* Su CC, Fung JA, Chang RJ, Chang CJ, Jan JF, Shih HT, Chen JC (2023) TaqMan quantitative-PCR detection of Xylella taiwanensis in Taiwan. Plant Disease (early view). https://doi.org/10.1094/PDIS-01-23-0064-RE
* Weng LW, Lin YC, Su CC, Huang CT, Cho ST, Chen AP, Chou SJ, Tsai CW, Kuo CH (2021) Complete genome sequence of Xylella taiwanensis and comparative analysis of virulence gene content with Xylella fastidiosa. Frontiers in Microbiology 12, 684092. https://doi.org/10.3389/fmicb.2021.684092
* Leu LS, Su CC (1993) Isolation, cultivation and pathogenicity of Xylella fastidiosa, the causal bacterium of pear leaf scorch disease in Taiwan. Plant Disease 77, 642-646.
* Review of Plant Pathology, 75(10), p 911 (6738).
* Su CC, Deng WL, Jan FJ, Chang CJ, Huang H, Shih HT, Chen J (2016) Xylella taiwanensis sp. nov. cause of pear leaf scorch disease in Taiwan. International Journal of Systematic and Evolutionary Microbiology 66(11), 4766-4771.
* Su CC, Chang CJ, Yang WJ, Hsu ST, Tzeng KC, Jan FJ, Deng WL (2012) Specific characters of 16S rRNA gene and 16S-23S rRNA internal transcribed spacer sequences of Xylella fastidiosa pear leaf scorch strains. European Journal of Plant Pathology 132(2), 132-203.
------- Pear strains from Taiwan could possibly belong to a new subspecies of X. fastidiosa.
* Su CC, Fung JA, Chang RJ, Chang CJ, Jan JF, Shih HT, Chen JC (2023) TaqMan quantitative-PCR detection of Xylella taiwanensis in Taiwan. Plant Disease (early view). https://doi.org/10.1094/PDIS-01-23-0064-RE
* Weng LW, Lin YC, Su CC, Huang CT, Cho ST, Chen AP, Chou SJ, Tsai CW, Kuo CH (2021) Complete genome sequence of Xylella taiwanensis and comparative analysis of virulence gene content with Xylella fastidiosa. Frontiers in Microbiology 12, 684092. https://doi.org/10.3389/fmicb.2021.684092