Variation in seed metabolites between two indica rice accessions differing in seed longevity

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dc.creatorLee, Jae-Sung
dc.creatorHay, Fiona R.
dc.date2020-09-19
dc.date2024-12-19T12:53:53Z
dc.date2024-12-19T12:53:53Z
dc.date.accessioned2026-06-27T04:08:23Z
dc.descriptionFor a better understanding of germination after seed storage, metabolite profiling was conducted using hybrid triple quadrupole time-of-flight (QTOF) mass spectrometry. After moisture content (MC) equilibration, seeds of “WAS170” (short-lived) and “IR65483” (long-lived) were stored at 10.9% MC and 45 °C. Samples for metabolite analysis were taken after 0 and 20 days of storage. Among 288 metabolites, two flavonoids (kaempferide and quercetin-3-arabinoside), one amino acid (S-sulfocysteine) and one sugar (D-glucose) increased in “IR65483” seeds after storage but were not detected in “WAS170” seeds. Based on the genome sequence database, we identified clear allelic differences with non-synonymous mutations on the six flavonol synthase genes regulating the accumulation of kaempferol- and quercetin-metabolites. On the other hand, two metabolites (thiamine monophosphate and harmaline) increased in short-lived seeds after storage; these metabolites could be potential biochemical indicators of seed deterioration.
dc.identifierhttps://hdl.handle.net/10568/164435
dc.identifier.urihttp://hdl.handle.net/123456789/22818
dc.languageen
dc.publisherMDPI
dc.rightsOpen Access
dc.sourceLee, Jae-Sung and Hay, F.R. 2020. Variation in seed metabolites between two indica rice accessions differing in seed longevity. Plants, Volume 9 no. 9 p. 1237
dc.titleVariation in seed metabolites between two indica rice accessions differing in seed longevity
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)