| Insect-Transmitted Urediniospores of the Rust Puccinia punctiformis Cause Systemic Infections in Established Cirsium arvense Plants. | |
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MedLine Citation:
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PMID: 18943745 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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ABSTRACT The rust fungus Puccinia punctiformis has potential as a biological control agent for creeping thistle Cirsium arvense, because systemically infected shoots usually die before flowering. The mechanism of rust transfer as well as the spore type responsible for systemic infections have been a source of controversy. One possibility of successful transmission is the use of the weevil Ceratapion onopordi as a vector. Our results from a garden experiment show that urediniospores transmitted by the weevil are able to induce systemic infections in established thistle clones. Furthermore, the weevil origin and the date of rust treatment significantly influenced the number of rust-infected shoots. The earlier a shoot was treated, the higher the probability of rust transmission. These results challenge the current belief that teliospores passing through the soil and infecting root buds are the major cause of systemic infections in the field. Further research on biological control of creeping thistle should therefore concentrate on the application of urediniospores to enhance systemic rust infections. |
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Authors:
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H Wandeler; S Bacher |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Phytopathology Volume: 96 ISSN: 0031-949X ISO Abbreviation: Phytopathology Publication Date: 2006 Aug |
Date Detail:
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Created Date: 2008-10-23 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9427222 Medline TA: Phytopathology Country: United States |
Other Details:
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Languages: eng Pagination: 813-8 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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