Penetration of sweet cherry skin by 45Ca-salts: pathways and factors

Abstract Calcium is beneficial to sweet cherry physiology. The objective was to investigate factors affecting uptake of Ca into mature sweet cherry fruit through their skins. Penetration of 45Ca-salts was monitored using whole fruit or excised fruit skins mounted in diffusion cells. Penetration of 4...

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Autores principales:	Andreas Winkler, Moritz Knoche
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2384ee646b28487193a6c1b82c7eb001
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spelling	oai:doaj.org-article:2384ee646b28487193a6c1b82c7eb0012021-12-02T16:53:11ZPenetration of sweet cherry skin by 45Ca-salts: pathways and factors10.1038/s41598-021-90727-02045-2322https://doaj.org/article/2384ee646b28487193a6c1b82c7eb0012021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90727-0https://doaj.org/toc/2045-2322Abstract Calcium is beneficial to sweet cherry physiology. The objective was to investigate factors affecting uptake of Ca into mature sweet cherry fruit through their skins. Penetration of 45Ca-salts was monitored using whole fruit or excised fruit skins mounted in diffusion cells. Penetration of 45CaCl2 into intact fruit and through excised skins increased with time. Sealing the pedicel/fruit junction decreased penetration, but sealing the stylar scar had no effect. There was little difference in permeances of the fruit skin to 45CaCl2, 45Ca(NO3)2, 45Ca-formate, 45Ca-acetate, 45Ca-lactate or 45Ca-propionate. Only 45Ca-heptagluconate penetrated at a slower rate. Increasing temperature markedly increased Ca-penetration. Penetration was most rapid at 35 °C, intermediate at 22 °C and slowest at 12 °C. Increasing relative humidity (RH) from 0, 28, 75 to 100% increased penetration of 45CaCl2, but penetration of 45Ca-formate was restricted to 100% RH. Increasing the RH from 50 to 100% at 96 h after droplet application had no effect on penetration of 45CaCl2, but increased penetration of 45Ca-formate. The results reveal that: (1) the fruit/pedicel junction is a site of preferential Ca-uptake and (2) Ca-penetration is limited by the mobility of the Ca ion in the dried-down droplet residue when the point of deliquescence of the applied salt exceeds the ambient RH.Andreas WinklerMoritz KnocheNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Andreas Winkler Moritz Knoche Penetration of sweet cherry skin by 45Ca-salts: pathways and factors
description	Abstract Calcium is beneficial to sweet cherry physiology. The objective was to investigate factors affecting uptake of Ca into mature sweet cherry fruit through their skins. Penetration of 45Ca-salts was monitored using whole fruit or excised fruit skins mounted in diffusion cells. Penetration of 45CaCl2 into intact fruit and through excised skins increased with time. Sealing the pedicel/fruit junction decreased penetration, but sealing the stylar scar had no effect. There was little difference in permeances of the fruit skin to 45CaCl2, 45Ca(NO3)2, 45Ca-formate, 45Ca-acetate, 45Ca-lactate or 45Ca-propionate. Only 45Ca-heptagluconate penetrated at a slower rate. Increasing temperature markedly increased Ca-penetration. Penetration was most rapid at 35 °C, intermediate at 22 °C and slowest at 12 °C. Increasing relative humidity (RH) from 0, 28, 75 to 100% increased penetration of 45CaCl2, but penetration of 45Ca-formate was restricted to 100% RH. Increasing the RH from 50 to 100% at 96 h after droplet application had no effect on penetration of 45CaCl2, but increased penetration of 45Ca-formate. The results reveal that: (1) the fruit/pedicel junction is a site of preferential Ca-uptake and (2) Ca-penetration is limited by the mobility of the Ca ion in the dried-down droplet residue when the point of deliquescence of the applied salt exceeds the ambient RH.
format	article
author	Andreas Winkler Moritz Knoche
author_facet	Andreas Winkler Moritz Knoche
author_sort	Andreas Winkler
title	Penetration of sweet cherry skin by 45Ca-salts: pathways and factors
title_short	Penetration of sweet cherry skin by 45Ca-salts: pathways and factors
title_full	Penetration of sweet cherry skin by 45Ca-salts: pathways and factors
title_fullStr	Penetration of sweet cherry skin by 45Ca-salts: pathways and factors
title_full_unstemmed	Penetration of sweet cherry skin by 45Ca-salts: pathways and factors
title_sort	penetration of sweet cherry skin by 45ca-salts: pathways and factors
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2384ee646b28487193a6c1b82c7eb001
work_keys_str_mv	AT andreaswinkler penetrationofsweetcherryskinby45casaltspathwaysandfactors AT moritzknoche penetrationofsweetcherryskinby45casaltspathwaysandfactors
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Penetration of sweet cherry skin by 45Ca-salts: pathways and factors

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