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Metabolomes of potato root exudates: compounds that stimulate resting spore germination of the soil-borne pathogen Spongospora subterranea
Citation
Balendres, MA and Nichols, DS and Tegg, RS and Wilson, CR, Metabolomes of potato root exudates: compounds that stimulate resting spore germination of the soil-borne pathogen Spongospora subterranea, Journal of Agricultural and Food Chemistry, 64, (40) pp. 7466-7474. ISSN 0021-8561 (2016) [Refereed Article]
Copyright Statement
Copyright 2016 American Chemical Society
DOI: doi:10.1021/acs.jafc.6b03904
Abstract
Root exudation has importance in soil chemical ecology influencing rhizosphere microbiota. Prior studies reported root exudates from host and nonhost plants stimulated resting spore germination of Spongospora subterranea, the powdery scab pathogen of potato, but the identities of stimulatory compounds were unknown. This study showed that potato root exudates stimulated S. subterranea resting spore germination, releasing more zoospores at an earlier time than the control. We detected 24 low molecular weight organic compounds within potato root exudates and identified specific amino acids, sugars, organic acids, and other compounds that were stimulatory to S. subterranea resting spore germination. Given that several stimulatory compounds are commonly found in exudates of diverse plant species, we support observations of nonhost-specific stimulation. We provide knowledge of S. subterranea resting spore biology and chemical ecology that may be useful in formulating new disease management strategies.
Item Details
Item Type: | Refereed Article |
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Keywords: | powdery scab, root infection, Plasmodiophorid, HILIC UPLC-MS, zoospore release, metabolomics, root exudates, potato disease |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Horticultural production |
Research Field: | Horticultural crop protection (incl. pests, diseases and weeds) |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Horticultural crops |
Objective Field: | Field grown vegetable crops |
UTAS Author: | Balendres, MA (Mr Mark Balendres) |
UTAS Author: | Nichols, DS (Dr David Nichols) |
UTAS Author: | Tegg, RS (Dr Robert Tegg) |
UTAS Author: | Wilson, CR (Professor Calum Wilson) |
ID Code: | 112132 |
Year Published: | 2016 |
Web of Science® Times Cited: | 30 |
Deposited By: | Tasmanian Institute of Agriculture |
Deposited On: | 2016-10-27 |
Last Modified: | 2017-11-06 |
Downloads: | 0 |
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