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Early detection of Fusarium basal rot infection in onions and shallots based on VOC profiles analysis
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Wesoly, Malgorzata, Daulton, Emma, Jenkins, Sascha, van Amsterdam, Sarah, Clarkson, John P. and Covington, James A. (2024) Early detection of Fusarium basal rot infection in onions and shallots based on VOC profiles analysis. Journal of Agricultural and Food Chemistry, 72 (7). pp. 3664-3672. doi:10.1021/acs.jafc.3c06569 ISSN 1520-5118.
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wesoly-et-al-2024-early-detection-of-fusarium-basal-rot-infection-in-onions-and-shallots-based-on-voc-profiles-analysis.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2552Kb) | Preview |
Official URL: http://doi.org/10.1021/acs.jafc.3c06569
Abstract
Gas chromatography ion-mobility spectrometry (GC-IMS) technology is drawing increasing attention due to its high sensitivity, low drift, and capability for the identification of compounds. The noninvasive detection of plant pests and pathogens is an application area well suited to this technology. In this work, we employed GC-IMS technology for early detection of Fusarium basal rot in brown onion, red onion, and shallot bulbs and for tracking disease progression during storage. The volatile profiles of the infected and healthy control bulbs were characterized using GC-IMS and gas chromatography-time-of-flight mass spectrometry (GC-TOF-MS). GC-IMS data combined with principal component analysis and supervised methods provided discrimination between infected and healthy control bulbs as early as 1 day after incubation with the pathogen, classification regarding the proportion of infected to healthy bulbs in a sample, and prediction of the infection’s duration with an average R2 = 0.92. Furthermore, GC-TOF-MS revealed several compounds, mostly sulfides and disulfides, that could be uniquely related to Fusarium basal rot infection.
Item Type: | Journal Article | ||||||||
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Subjects: | S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) |
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SWORD Depositor: | Library Publications Router | ||||||||
Library of Congress Subject Headings (LCSH): | Onions -- Diseases and pests, Fusarium oxysporum, Fusarium diseases of plants, Allium, Fungal diseases of plants, Ion mobility spectroscopy, Mass spectrometry | ||||||||
Journal or Publication Title: | Journal of Agricultural and Food Chemistry | ||||||||
Publisher: | American Chemical Society (ACS) | ||||||||
ISSN: | 1520-5118 | ||||||||
Official Date: | 21 February 2024 | ||||||||
Dates: |
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Volume: | 72 | ||||||||
Number: | 7 | ||||||||
Page Range: | pp. 3664-3672 | ||||||||
DOI: | 10.1021/acs.jafc.3c06569 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 4 March 2024 | ||||||||
Date of first compliant Open Access: | 5 March 2024 | ||||||||
RIOXX Funder/Project Grant: |
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