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A comparison of Olpidium isolates from a range of host plants using internal transcribed spacer sequence analysis and host range studies

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Hartwright, Lucy M., Hunter, Paul J. and Walsh, John A. (2009) A comparison of Olpidium isolates from a range of host plants using internal transcribed spacer sequence analysis and host range studies. Fungal Biology, Vol.114 (No.1). pp. 26-33. doi:10.1016/j.mycres.2009.09.008 ISSN 0953-7562.

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Official URL: http://dx.doi.org/10.1016/j.mycres.2009.09.008

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Abstract

Olpidium brassicae is a ubiquitous obligate root-infecting fungal pathogen. It is an important vector of a wide range of plant viruses. Olpidium isolates that infected brassica plants did not infect lettuce plants and vice-versa. Host range tests, PCR amplification and sequencing of the internal transcribed spacer (ITS) and 5.8S regions of 25 Olpidium isolates from brassica, carrot, cucumber and lettuce originating from four continents revealed differences between isolates. Based on their ability to infect lettuce and brassicas and the differences between their ITS1, 5.8S and ITS2 regions they could be separated into a number of distinct groups. Comparisons with other published sequences revealed two distinct genetic groups of brassica-infecting isolates, two distinct groups of lettuce-infecting isolates, one of which contained a carrot-infecting isolate and a distinct group comprising a cucumber-infecting isolate and a melon-infecting isolate. The possibility of the isolates belonging to three distinct species is discussed.

Item Type: Journal Article
Subjects: Q Science > QK Botany
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Warwick HRI (2004-2010)
Library of Congress Subject Headings (LCSH): Chytridiomycetes, Virus-vector relationships -- Research, Fungal diseases of plants -- Research, Polymerase chain reaction
Journal or Publication Title: Fungal Biology
Publisher: Elsevier Ltd
ISSN: 0953-7562
Official Date: 1 October 2009
Dates:
DateEvent
1 October 2009["eprint_fieldopt_dates_date_type_available" not defined]
Volume: Vol.114
Number: No.1
Number of Pages: 8
Page Range: pp. 26-33
DOI: 10.1016/j.mycres.2009.09.008
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Funder: European Commission (EC)
Grant number: QLRT-1999-1471 (EC)

Data sourced from Thomson Reuters' Web of Knowledge

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