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https://hdl.handle.net/2440/58633
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Type: | Journal article |
Title: | Infection of Cullen australasicum (syn. Psoralea australasica) with Alfalfa mosaic virus |
Author: | Nair, R. Habili, N. Randles, J. |
Citation: | Australasian Plant Disease Notes, 2009; 4(1):46-48 |
Publisher: | CSIRO Publishing |
Issue Date: | 2009 |
ISSN: | 1833-928X |
Statement of Responsibility: | R. M. Nair, N. Habili and J. W. Randles |
Abstract: | Severe yellow mosaic and leaf distortion symptoms have been observed on Cullen australasicum (cullen) plants growing in experimental plots at Urrbrae, South Australia. The incidence of the affected plants in a 2-year-old stand was ~80%. Symptom distribution on plants was uneven and symptom intensity appeared to vary between seasons. Alfalfa mosaic virus (AMV) was identified in 6/10 symptomatic and 1/10 asymptomatic field plants by reverse transcription-polymerase chain reaction (RT–PCR). Transmission of mosaic symptoms from cullen to cullen by mechanical inoculation was unsuccessful, but a cullen AMV isolate passaged through herbaceous indicators induced systemic mosaic in 1/4 of inoculated cullen seedlings. No seed transmission of AMV was observed in 50 seedlings raised from symptomatic parents. These results show that cullen is a host of AMV, but further studies are needed to determine whether AMV is the sole cause of the mosaic disease. |
Rights: | Copyright Australasian Plant Pathology Society 2009 |
DOI: | 10.1071/DN09019 |
Published version: | http://www.publish.csiro.au/nid/208/paper/DN09019.htm |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest |
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