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Seasonal distribution of phytoplasmas in Australian grapevines

Constable, FE, Gibb, KS and Symons, RH (2003). Seasonal distribution of phytoplasmas in Australian grapevines. Plant Pathology,52(3):267-276.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 26 times in Scopus Article | Citations

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Title Seasonal distribution of phytoplasmas in Australian grapevines
Author Constable, FE
Gibb, KS
Symons, RH
Journal Name Plant Pathology
Publication Date 2003
Volume Number 52
Issue Number 3
ISSN 1365-3059   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-0038805241
Start Page 267
End Page 276
Total Pages 10
Place of Publication Oxford, England
Publisher Blackwell Publishing
Field of Research 0607 - Plant Biology
HERDC Category C1 - Journal Article (DEST)
Abstract The distribution and persistence of phytoplasmas were determined in Australian grapevines. Phytoplasmas could be detected using the polymerase chain reaction (PCR) from shoots, cordons, trunks and roots throughout the year, and phytoplasmas appear to persistently infect Australian grapevines from year to year. Phytoplasmas were not always detected in samples from the same sampling area from one sampling period to the next. Phytoplasma detection by PCR was improved by sampling from shoots, cordons and trunks, especially during October (early spring). The diseases expressed by the 20 grapevines used in the distribution and persistence studies were monitored. Australian grapevine yellows disease (AGY) was expressed by 17/20 grapevines at some time during the study, whilst only 4/20 and 15/20 grapevines expressed restricted growth disease (RG) and late season leaf curl disease (LSLC), respectively. All grapevines with RG and LSLC also had AGY. The three diseases were persistently expressed in some grapevines and remission of disease was observed in others. The results of PCR detection in the same grapevines indicated that phytoplasmas were more frequently detected in AGY-affected grapevines that also expressed RG and LSLC compared with grapevines expressing AGY alone. Phytoplasmas were detected in symptomless plant material but less frequently compared with AGY-affected material.
Keywords australian grapevine yellows
disease detection and diagnosis
grapevine
phytoplasma
polymerase chain reaction
amplification
dna
DOI http://dx.doi.org/10.1046/j.1365-3059.2003.00849.x   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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