Novel Pathotypes of Elsinoë australis Associated with Citrus australasica and Simmondsia chinensis in Australia

Miles, Andrew K. and Tan, Yu Pei and Shivas, Roger G. and Drenth, André (2015) Novel Pathotypes of Elsinoë australis Associated with Citrus australasica and Simmondsia chinensis in Australia. Tropical Plant Pathology, 40 (1). pp. 26-34. ISSN 1982-5676

Abstract

Molecular phylogenetic analysis, morphology and pathogenicity to citrus fruit were used to study two isolates of Elsinoë australis associated with scab-like symptoms on a fruit of Citrus australasica (finger lime) and Simmondsia chinensis (jojoba) in Australia. In addition to being associated with finger lime, the isolate from finger lime could cause scab symptoms on C. × aurantium cv. Murcott tangor in pathogenicity tests, but could not cause scab symptoms on the other orange, mandarin, lemon or grapefruit tested. Pathogenicity tests also support previous studies showing the isolate from jojoba could not produce symptoms on fruit of C. natsudaidai. Based on the findings of this study, two novel pathotypes of E. australis are designated from Australia; namely the Finger Lime (FL) pathotype associated with finger lime, and the Jojoba Black Scab (JBS) pathotype associated with black scab of jojoba. The significance of these novel E. australis pathotypes on market access and biosecurity issues for citrus are briefly discussed.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 18 May 2017 22:06
Last Modified: 18 May 2017 22:06
Uncontrolled Keywords: ITS; Phylogeny; Scab; Taxonomy; TEF;
Fields of Research : 06 Biological Sciences > 0607 Plant Biology > 060704 Plant Pathology
07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970106 Expanding Knowledge in the Biological Sciences
B Economic Development > 82 Plant Production and Plant Primary Products > 8202 Horticultural Crops > 820203 Citrus Fruit
Identification Number or DOI: 10.1007/s40858-015-0005-0
URI: http://eprints.usq.edu.au/id/eprint/31340

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