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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.plaphy.2014.02.017
|2 doi
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|a pubmed24n0788.xml
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|a (DE-627)NLM236428098
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|a (NLM)24632491
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|a (PII)S0981-9428(14)00061-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Hong, Gaojie
|e verfasserin
|4 aut
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|a Biosynthesis of catechin components is differentially regulated in dark-treated tea (Camellia sinensis L.)
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 15.12.2014
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|a Date Revised 10.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier Masson SAS. All rights reserved.
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|a Tea (Camellia sinensis L.) is a crop with both commercial and medicinal value with remarkably high polyphenol content in the form of catechins. To understand the molecular regulation of catechin biosynthesis in tea, we treated the tea plants with darkness. We used qRT-PCR to validate the expression of genes involved in catechin biosynthesis. It indicated that dark treatment displayed different effects on the genes participating in tea flavonoid (FL) pathway. The early genes of FL biosynthesis pathway, CHSI, F3H and DFR, remained at steady expression levels when treated by darkness. It is noteworthy that the expression level of LAR increased and the level of ANS decreased under dark conditions. The vanillin assay showed that the dark-treated plants contained lower levels of total catechins than those grown under normal conditions. The HPLC analysis further demonstrated the changes in biosynthesis of catechins under these conditions. In accordance with the gene expression pattern, the content of epicatechins (ECs) declined and that of catechins (Cs) was elevated in response to the darkness. Our study uncovered the molecular mechanisms and biochemical changes of shading in tea cultivation
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Catechins
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|a Darkness
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|a Flavonoid pathway
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|a Tea
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|a Transcriptional regulation
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|a Anthocyanins
|2 NLM
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|a Plant Proteins
|2 NLM
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|a Tea
|2 NLM
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|a Catechin
|2 NLM
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|a 8R1V1STN48
|2 NLM
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|a Mixed Function Oxygenases
|2 NLM
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|a EC 1.-
|2 NLM
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|a Alcohol Oxidoreductases
|2 NLM
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|a EC 1.1.-
|2 NLM
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|a dihydroflavanol 4-reductase
|2 NLM
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|a EC 1.1.1.-
|2 NLM
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|a flavanone 3-dioxygenase
|2 NLM
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|a EC 1.14.11.9
|2 NLM
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|a NADH, NADPH Oxidoreductases
|2 NLM
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|a EC 1.6.-
|2 NLM
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|a Acyltransferases
|2 NLM
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|a EC 2.3.-
|2 NLM
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|a flavanone synthetase
|2 NLM
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| 650 |
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|a EC 2.3.1.74
|2 NLM
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|a Wang, Jie
|e verfasserin
|4 aut
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|a Zhang, Yong
|e verfasserin
|4 aut
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|a Hochstetter, Danielle
|e verfasserin
|4 aut
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|a Zhang, Shuping
|e verfasserin
|4 aut
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|a Pan, Yue
|e verfasserin
|4 aut
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|a Shi, Yunlong
|e verfasserin
|4 aut
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|a Xu, Ping
|e verfasserin
|4 aut
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|a Wang, Yuefei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant physiology and biochemistry : PPB
|d 1991
|g 78(2014) vom: 30. Mai, Seite 49-52
|w (DE-627)NLM098178261
|x 1873-2690
|7 nnns
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| 773 |
1 |
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|g volume:78
|g year:2014
|g day:30
|g month:05
|g pages:49-52
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|u http://dx.doi.org/10.1016/j.plaphy.2014.02.017
|3 Volltext
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|d 78
|j 2014
|b 30
|c 05
|h 49-52
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