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Article

Colletotrichum Species Causing Anthracnose of Citrus in Australia

1
Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
2
Agriculture Victoria, Department of Jobs, Precincts and Regions, AgriBio Centre, 5 Ring Road, La Trobe University, Bundoora, VIC 3083, Australia
3
School of Applied Systems Biology, La Trobe University, Bundoora, VIC 3083, Australia
4
Faculty of Science, The University of Melbourne, Parkville, VIC 3010, Australia
5
Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
*
Author to whom correspondence should be addressed.
J. Fungi 2021, 7(1), 47; https://doi.org/10.3390/jof7010047
Received: 21 December 2020 / Revised: 4 January 2021 / Accepted: 6 January 2021 / Published: 12 January 2021
(This article belongs to the Special Issue Fungal Biodiversity and Ecology)
Colletotrichum spp. are important pathogens of citrus that cause dieback of branches and postharvest disease. Globally, several species of Colletotrichum have been identified as causing anthracnose of citrus. One hundred and sixty-eight Colletotrichum isolates were collected from anthracnose symptoms on citrus stems, leaves, and fruit from Victoria, New South Wales, and Queensland, and from State herbaria in Australia. Colletotrichum australianum sp. nov., C. fructicola, C. gloeosporioides, C. karstii, C. siamense, and C. theobromicola were identified using multi-gene phylogenetic analyses based on seven genomic loci (ITS, gapdh, act, tub2, ApMat, gs, and chs-1) in the gloeosporioides complex and five genomic loci (ITS, tub2, act, chs-1, and his3) in the boninense complex, as well as morphological characters. Several isolates pathogenic to chili (Capsicum annuum), previously identified as C. queenslandicum, formed a clade with the citrus isolates described here as C. australianum sp. nov. The spore shape and culture characteristics of the chili and citrus isolates of C. australianum were similar and differed from those of C. queenslandicum. This is the first report of C. theobromicola isolated from citrus and the first detection of C. karstii and C. siamense associated with citrus anthracnose in Australia. View Full-Text
Keywords: anthracnose; citrus; Colletotrichum australianum; phylogenetic analysis; taxonomy anthracnose; citrus; Colletotrichum australianum; phylogenetic analysis; taxonomy
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MDPI and ACS Style

Wang, W.; de Silva, D.D.; Moslemi, A.; Edwards, J.; Ades, P.K.; Crous, P.W.; Taylor, P.W.J. Colletotrichum Species Causing Anthracnose of Citrus in Australia. J. Fungi 2021, 7, 47. https://doi.org/10.3390/jof7010047

AMA Style

Wang W, de Silva DD, Moslemi A, Edwards J, Ades PK, Crous PW, Taylor PWJ. Colletotrichum Species Causing Anthracnose of Citrus in Australia. Journal of Fungi. 2021; 7(1):47. https://doi.org/10.3390/jof7010047

Chicago/Turabian Style

Wang, Weixia, Dilani D. de Silva, Azin Moslemi, Jacqueline Edwards, Peter K. Ades, Pedro W. Crous, and Paul W.J. Taylor. 2021. "Colletotrichum Species Causing Anthracnose of Citrus in Australia" Journal of Fungi 7, no. 1: 47. https://doi.org/10.3390/jof7010047

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