The timing of exogenous ethylene supplementation differentially affects stored sweetpotato roots

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dc.contributor.author Amoah, Robert Sarpong
dc.contributor.author Landahl, Sandra
dc.contributor.author Terry, Leon A.
dc.date.accessioned 2016-07-06T09:09:24Z
dc.date.available 2016-07-06T09:09:24Z
dc.date.issued 2016-06-14
dc.identifier.citation Robert 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 92-102 en_UK
dc.identifier.issn 0925-5214
dc.identifier.uri http://dx.doi.org/10.1016/j.postharvbio.2016.05.013
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/10094
dc.description.abstract The 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.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International en_UK
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Respiration en_UK
dc.subject Sprouting en_UK
dc.subject Sugars en_UK
dc.subject Phenolics en_UK
dc.subject Abscisic acid en_UK
dc.title The timing of exogenous ethylene supplementation differentially affects stored sweetpotato roots en_UK
dc.type Article en_UK


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