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Alternate host screening of Thekopsora areolata in Scandinavia: a new record on Prunus grayana

Zhang, Ke and Olson, Åke and Samils, Berit and Kaitera, Juha (2021). Alternate host screening of Thekopsora areolata in Scandinavia: a new record on Prunus grayana. Botany. 99 , 589-600
[Research article]

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Abstract

The cherry spruce rust caused by Thekopsora areolata (Fr.) Magnus results in significant losses in spruce seed production in the forest industry. The pathogen is present in Asia and Europe but absent from North America where it has been considered as a potential threat and listed as a quarantine organism by the United States Department of Agriculture. A comprehensive list and in-depth information regarding the alternate hosts of this pathogen are important for conducting epidemiological studies and for optimal disease control. Prunus padus L. is the main alternate host reported for T. areolata. In this study, we investigated the susceptibility of domestic and exotic Prunus spp. and other potential alternate host-plant species native to Scandinavia to T. areolata infection through a field survey and aeciospore inoculation experiments in the greenhouse and laboratory. No new susceptible species were found. In Sweden, a new record of Prunus grayana Maxim. with low susceptibility to T. areolata was found. In addition, we updated the list of currently confirmed alternate hosts of T. areolata according to field observations and inoculation results. Prunus padus and Prunus serotina Ehrh., as well as their hybrids and subspecies of Prunus padus, are highly susceptible, while Prunus depressa Pursh, Prunus grayana, Prunus spinosa L., and Prunus tenella Batsch are considered slightly susceptible.

Authors/Creators:Zhang, Ke and Olson, Åke and Samils, Berit and Kaitera, Juha
Title:Alternate host screening of Thekopsora areolata in Scandinavia: a new record on Prunus grayana
Series Name/Journal:Botany
Year of publishing :2021
Volume:99
Page range:589-600
Number of Pages:12
Publisher:CANADIAN SCIENCE PUBLISHING
ISSN:1916-2790
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:rust fungi, Picea abies (L.) H.Karst, cherry spruce rust, susceptibility, Prunus
URN:NBN:urn:nbn:se:slu:epsilon-p-114185
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-114185
Additional ID:
Type of IDID
DOI10.1139/cjb-2021-0023
Web of Science (WoS)000708448400001
ID Code:26006
Faculty:S - Faculty of Forest Sciences
Department:(NL, NJ) > Dept. of Forest Mycology and Plant Pathology
(S) > Dept. of Forest Mycology and Plant Pathology
Deposited By: SLUpub Connector
Deposited On:02 Nov 2021 09:25
Metadata Last Modified:02 Nov 2021 09:31

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