Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L

Abstract Rising CO2 concentration, a driving force of climate change, is impacting global food security by affecting plant physiology. Nevertheless, the effects of elevated CO2 on primary and secondary metabolism in tea plants (Camellia sinensis L.) still remain largely unknown. Here we showed that...

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Autores principales:	Xin Li, Lan Zhang, Golam Jalal Ahammed, Zhi-Xin Li, Ji-Peng Wei, Chen Shen, Peng Yan, Li-Ping Zhang, Wen-Yan Han
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c291ea0c08c34c1fb1cb0dd5ce9082aa
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spelling	oai:doaj.org-article:c291ea0c08c34c1fb1cb0dd5ce9082aa2021-12-02T16:06:25ZStimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L10.1038/s41598-017-08465-12045-2322https://doaj.org/article/c291ea0c08c34c1fb1cb0dd5ce9082aa2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08465-1https://doaj.org/toc/2045-2322Abstract Rising CO2 concentration, a driving force of climate change, is impacting global food security by affecting plant physiology. Nevertheless, the effects of elevated CO2 on primary and secondary metabolism in tea plants (Camellia sinensis L.) still remain largely unknown. Here we showed that exposure of tea plants to elevated CO2 (800 µmol mol−1 for 24 d) remarkably improved both photosynthesis and respiration in tea leaves. Furthermore, elevated CO2 increased the concentrations of soluble sugar, starch and total carbon, but decreased the total nitrogen concentration, resulting in an increased carbon to nitrogen ratio in tea leaves. Among the tea quality parameters, tea polyphenol, free amino acid and theanine concentrations increased, while the caffeine concentration decreased after CO2 enrichment. The concentrations of individual catechins were altered differentially resulting in an increased total catechins concentration under elevated CO2 condition. Real-time qPCR analysis revealed that the expression levels of catechins and theanine biosynthetic genes were up-regulated, while that of caffeine synthetic genes were down-regulated in tea leaves when grown under elevated CO2 condition. These results unveiled profound effects of CO2 enrichment on photosynthesis and respiration in tea plants, which eventually modulated the biosynthesis of key secondary metabolites towards production of a quality green tea.Xin LiLan ZhangGolam Jalal AhammedZhi-Xin LiJi-Peng WeiChen ShenPeng YanLi-Ping ZhangWen-Yan HanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xin Li Lan Zhang Golam Jalal Ahammed Zhi-Xin Li Ji-Peng Wei Chen Shen Peng Yan Li-Ping Zhang Wen-Yan Han Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L
description	Abstract Rising CO2 concentration, a driving force of climate change, is impacting global food security by affecting plant physiology. Nevertheless, the effects of elevated CO2 on primary and secondary metabolism in tea plants (Camellia sinensis L.) still remain largely unknown. Here we showed that exposure of tea plants to elevated CO2 (800 µmol mol−1 for 24 d) remarkably improved both photosynthesis and respiration in tea leaves. Furthermore, elevated CO2 increased the concentrations of soluble sugar, starch and total carbon, but decreased the total nitrogen concentration, resulting in an increased carbon to nitrogen ratio in tea leaves. Among the tea quality parameters, tea polyphenol, free amino acid and theanine concentrations increased, while the caffeine concentration decreased after CO2 enrichment. The concentrations of individual catechins were altered differentially resulting in an increased total catechins concentration under elevated CO2 condition. Real-time qPCR analysis revealed that the expression levels of catechins and theanine biosynthetic genes were up-regulated, while that of caffeine synthetic genes were down-regulated in tea leaves when grown under elevated CO2 condition. These results unveiled profound effects of CO2 enrichment on photosynthesis and respiration in tea plants, which eventually modulated the biosynthesis of key secondary metabolites towards production of a quality green tea.
format	article
author	Xin Li Lan Zhang Golam Jalal Ahammed Zhi-Xin Li Ji-Peng Wei Chen Shen Peng Yan Li-Ping Zhang Wen-Yan Han
author_facet	Xin Li Lan Zhang Golam Jalal Ahammed Zhi-Xin Li Ji-Peng Wei Chen Shen Peng Yan Li-Ping Zhang Wen-Yan Han
author_sort	Xin Li
title	Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L
title_short	Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L
title_full	Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L
title_fullStr	Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L
title_full_unstemmed	Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L
title_sort	stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in camellia sinensis l
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c291ea0c08c34c1fb1cb0dd5ce9082aa
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Stimulation in primary and secondary metabolism by elevated carbon dioxide alters green tea quality in Camellia sinensis L

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