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Rickettsia-like-organisms and phytoplasmas associated with diseases in Australian strawberries

Streten-Joyce, Claire, Waite, G, Herrington, M, Hutton, D, Persley, D and Gibb, Karen (2005). Rickettsia-like-organisms and phytoplasmas associated with diseases in Australian strawberries. Australasian Plant Pathology,34(2):157-164.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 5 times in Scopus Article | Citations

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IRMA ID 75033819xPUB4
Title Rickettsia-like-organisms and phytoplasmas associated with diseases in Australian strawberries
Author Streten-Joyce, Claire
Waite, G
Herrington, M
Hutton, D
Persley, D
Gibb, Karen
Journal Name Australasian Plant Pathology
Publication Date 2005
Volume Number 34
Issue Number 2
ISSN 0815-3191   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-23444440621
Start Page 157
End Page 164
Total Pages 8
Publisher CSIRO Publishing
Field of Research 0605 - Microbiology
0607 - Plant Biology
HERDC Category C1 - Journal Article (DEST)
Abstract Strawberry lethal yellows (SLY) disease in Australia is associated with the phytoplasmas Candidatus Phytoplasma australiense and tomato big bud, and a rickettsia-like-organism (RLO). Ca. P. australiense is also associated with strawberry green petal (SGP) disease. This study investigated the strength of the association of the different agents with SLY disease. We also documented the location of SLY or SGP plants, and measured whether they were RLO or phytoplasma positive. Symptomatic strawberry plants collected from south-east Queensland (Australia) between January 2000 and October 2002 were screened by PCR for both phytoplasmas and the RLO. Two previously unreported disease symptoms termed severe fruit distortion (SFD) and strawberry leaves from fruit (SLF) were observed during this study but there was no clear association between these symptoms and phytoplasmas or the RLO. Only two SGP diseased plants were observed and collected, compared with 363 plants with SLY disease symptoms. Of the 363 SLY samples, 117 tested positive for the RLO, 67 tested positive for Ca. P. australiense AGY strain and 11 plants tested positive for Ca. P. australiense PYL variant strain. On runner production farms at Stanthorpe, Queensland the RLO was detected in SLY diseased plants more frequently than for the phytoplasmas. On fruit production farms on the Sunshine Coast, Queensland, Ca. P. australiense was detected in SLY disease plants more frequently than the RLO.
Keywords candidatus phytoplasma australiense
strawberry lethal yellows
strawberry green petal
yellow leaf phytoplasma
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