A systematic study reveals that Xylella fastidiosa strains from pecan are part of X. fastidiosa subsp. multiplex

Melanson, R. A., Sanderlin, R. S., McTaggart, A. R. and Ham, J. H. (2012) A systematic study reveals that Xylella fastidiosa strains from pecan are part of X. fastidiosa subsp. multiplex. Plant Disease, 96 8: 1123-1134. doi:10.1094/PDIS-09-11-0730-RE


Author Melanson, R. A.
Sanderlin, R. S.
McTaggart, A. R.
Ham, J. H.
Title A systematic study reveals that Xylella fastidiosa strains from pecan are part of X. fastidiosa subsp. multiplex
Journal name Plant Disease   Check publisher's open access policy
ISSN 0191-2917
1943-7692
Publication date 2012-08
Year available 2012
Sub-type Article (original research)
DOI 10.1094/PDIS-09-11-0730-RE
Volume 96
Issue 8
Start page 1123
End page 1134
Total pages 12
Place of publication St. Paul, MN United States
Publisher American Phytopathological Society
Collection year 2013
Language eng
Formatted abstract
Xylella fastidiosa causes disease in a number of economically important crops, ornamental plants, and shade trees, including grapevine, citrus, oleander, and sycamore. In pecan, X. fastidiosa causes pecan bacterial leaf scorch (PBLS), which leads to defoliation and reduces nut yield. No economically effective treatments are available for PBLS. In order to improve PBLS management practices, it is necessary to determine the subspecies of X. fastidiosa strains that infect pecan so that potential sources of inoculum may be identified. Multiprimer polymerase chain reaction (PCR) and phylogenetic analyses using nucleotide sequence data from the 16S-23S rRNA intergenic transcribed spacer (ITS) region and pglA consistently identified strains of X. fastidiosa isolated from pecan as X. fastidiosa subsp. multiplex. Enterobacterial repetitive intergenic consensus PCR and repetitive extragenic palindromic (REP)-PCR analyses were congruent with phylogenetic analyses. REP-PCR analyses indicated genetic variation within strains of X. fastidiosa from pecan. From these same analyses, X. fastidiosa strains from sycamore, grapevine, and oleander from Louisiana were identified as subsp. multiplex, subsp. fastidiosa, and subsp. sandyi, respectively. This study provides additional information about the host ranges of X. fastidiosa subspecies
Keyword Leaf Scorch Disease
Citrus Variegated Chlorosis
Polymerase-Chain Reaction
Intergenic Spacer Sequences
Glassy Winged Sharpshooter
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Queensland Alliance for Agriculture and Food Innovation
 
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Created: Wed, 28 Aug 2013, 16:16:44 EST by Alistair Mctaggart on behalf of Qld Alliance for Agriculture and Food Innovation