Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling

Abstract The aim of the present study was to evaluate the effect of post-flowering chilling of sweet cherry (Prunus avium L.) on the content of biochemical parameters in the leaf (chloroplast pigments, sugars and phenolics). The effect of chilling was investigated in two experiments. Potted 2-year-o...

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Autores principales:	Matej Vosnjak, Helena Sircelj, Metka Hudina, Valentina Usenik
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5c307ef2075741078cbda0e7e3862df1
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spelling	oai:doaj.org-article:5c307ef2075741078cbda0e7e3862df12021-12-02T18:18:06ZResponse of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling10.1038/s41598-021-86732-y2045-2322https://doaj.org/article/5c307ef2075741078cbda0e7e3862df12021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86732-yhttps://doaj.org/toc/2045-2322Abstract The aim of the present study was to evaluate the effect of post-flowering chilling of sweet cherry (Prunus avium L.) on the content of biochemical parameters in the leaf (chloroplast pigments, sugars and phenolics). The effect of chilling was investigated in two experiments. Potted 2-year-old trees of cv. 'Grace Star' and 'Schneiders' were exposed to one, two or three consecutive overnight chillings at an average air temperature of 4.7 °C (Experiment I), but in the following year only trees of 'Grace Star' were chilled at 2.2 °C (Experiment II), 3 to 7 weeks after flowering. The analysis of the biochemical parameters was performed by high performance liquid chromatography combined with electrospray ionization mass spectrometry. Chilling at 4.7 °C caused little or no stress, while 2.2 °C induced more intense stress with increased zeaxanthin, sugar and phenolic content in leaves, while exposure of trees to higher temperatures and closer to flowering showed no changes. Two or three consecutive overnight chilling periods increased the phenolic content and enhanced the accumulation of zeaxanthin in the leaves. Sucrose, sorbitol, fructose, total sugar, and total flavonoid content in leaves increased within 48 h after chilling. Zeaxanthin epoxidized within 24 h after one and 48 h after one and two consecutive overnight chillings.Matej VosnjakHelena SirceljMetka HudinaValentina UsenikNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Matej Vosnjak Helena Sircelj Metka Hudina Valentina Usenik Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
description	Abstract The aim of the present study was to evaluate the effect of post-flowering chilling of sweet cherry (Prunus avium L.) on the content of biochemical parameters in the leaf (chloroplast pigments, sugars and phenolics). The effect of chilling was investigated in two experiments. Potted 2-year-old trees of cv. 'Grace Star' and 'Schneiders' were exposed to one, two or three consecutive overnight chillings at an average air temperature of 4.7 °C (Experiment I), but in the following year only trees of 'Grace Star' were chilled at 2.2 °C (Experiment II), 3 to 7 weeks after flowering. The analysis of the biochemical parameters was performed by high performance liquid chromatography combined with electrospray ionization mass spectrometry. Chilling at 4.7 °C caused little or no stress, while 2.2 °C induced more intense stress with increased zeaxanthin, sugar and phenolic content in leaves, while exposure of trees to higher temperatures and closer to flowering showed no changes. Two or three consecutive overnight chilling periods increased the phenolic content and enhanced the accumulation of zeaxanthin in the leaves. Sucrose, sorbitol, fructose, total sugar, and total flavonoid content in leaves increased within 48 h after chilling. Zeaxanthin epoxidized within 24 h after one and 48 h after one and two consecutive overnight chillings.
format	article
author	Matej Vosnjak Helena Sircelj Metka Hudina Valentina Usenik
author_facet	Matej Vosnjak Helena Sircelj Metka Hudina Valentina Usenik
author_sort	Matej Vosnjak
title	Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
title_short	Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
title_full	Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
title_fullStr	Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
title_full_unstemmed	Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
title_sort	response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/5c307ef2075741078cbda0e7e3862df1
work_keys_str_mv	AT matejvosnjak responseofchloroplastpigmentssugarsandphenolicsofsweetcherryleavestochilling AT helenasircelj responseofchloroplastpigmentssugarsandphenolicsofsweetcherryleavestochilling AT metkahudina responseofchloroplastpigmentssugarsandphenolicsofsweetcherryleavestochilling AT valentinausenik responseofchloroplastpigmentssugarsandphenolicsofsweetcherryleavestochilling
_version_	1718378275424698368

Response of chloroplast pigments, sugars and phenolics of sweet cherry leaves to chilling

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