The timing of exogenous ethylene supplementation differentially affects stored sweetpotato roots

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dc.contributor.authorAmoah, Robert Sarpong
dc.contributor.authorLandahl, Sandra
dc.contributor.authorTerry, Leon A.
dc.date.accessioned2016-07-06T09:09:24Z
dc.date.available2016-07-06T09:09:24Z
dc.date.issued2016-06-14
dc.description.abstractThe effects of continuous supplemental ethylene (10 μL L−1) timing on the physiology and biochemistry of sweetpotato roots during storage at 25 °C were examined. Alongside continuous ethylene or air treatments, a subset of the roots were transferred at dormancy break, from those previously stored in ethylene into air and vice-versa. The study showed distinctive ethylene-induced effects on the metabolism of individual sugars, phenolic compounds and phytohormones (abscisic acid and zeatin riboside) across the spatial gradient of the root flesh and skin tissues. Although ethylene flushing doubled root respiration, sprout growth was significantly suppressed. Supplementation of roots with ethylene after dormancy break effectively inhibited sprout growth as much as continuous ethylene alone. On the other hand, truncating ethylene application after dormancy release promoted vigorous sprout growth. After prolonged storage, ethylene treatment was associated with increased weight loss and incidence of proximal rots. Supplemental ethylene also accelerated the catabolism of monosaccharides, and promoted accumulation of phenolic compounds in the proximal root sections.en_UK
dc.identifier.citationRobert S. Amoah, Sandra Landahl, Leon A. Terry, The timing of exogenous ethylene supplementation differentially affects stored sweetpotato roots, Postharvest Biology and Technology, Volume 120, October 2016, Pages 92-102en_UK
dc.identifier.issn0925-5214
dc.identifier.urihttp://dx.doi.org/10.1016/j.postharvbio.2016.05.013
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10094
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen_UK
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectRespirationen_UK
dc.subjectSproutingen_UK
dc.subjectSugarsen_UK
dc.subjectPhenolicsen_UK
dc.subjectAbscisic aciden_UK
dc.titleThe timing of exogenous ethylene supplementation differentially affects stored sweetpotato rootsen_UK
dc.typeArticleen_UK

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