Topics and trends in fresh tea (Camellia sinensis) leaf research: A comprehensive bibliometric study

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: April 6, 2023

Tea plant ( Camellia sinensis ) is a widely cultivated cash crop and tea favorite functional food in the world. Fresh leaves (FTLs) play critical role bridging two fields closely related to cultivation processing, those are, biology biochemistry. To provide comprehensive overview of development stages, authorship collaboration, research topics, hotspots their temporal evolution trends field FTLs research, we conducted bibliometric analysis, based on 971 publications FTLs-related published during 2001-2021 from Web Science Core Collection. CiteSpace, R package Bibliometrix, VOSviewer were employed this research. The results revealed that history can be roughly divided into three namely initial stage, slow stage rapid stage. Journal Agricultural & Food Chemistry most articles field, while Frontiers Plant held highest total citations h-index. influential country, institution, author was identified as China, Chinese Academy Sciences, Xiaochun Wan, respectively. categorized main topics: regulation mechanism key genes, metabolism features essential compounds, plants’ growth stress responses. concerning are application advanced technologies, metabolites, leaf color variants, effective treatments. There has been shift basic biochemical enzymatic studies molecular mechanisms depend multi-omics technologies. We also discussed future field. This study provides summary making it easier for researchers informed about its history, status, trends.

Language: Английский

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Genome-wide identification and integrated analysis of TCP genes controlling ginsenoside biosynthesis in Panax ginseng

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Jan. 13, 2024

Abstract Panax ginseng is an important medicinal plant, and ginsenosides are the main bioactive molecules of ginseng. The TCP (TBI, CYC, PCF) family a group transcription factors (TFs) that play role in plant growth development, hormone signalling synthesis secondary metabolites. In our study, 78 PgTCP transcripts were identified from established transcriptome database. A phylogenetic tree analysis showed 67 with complete open reading frames classified into three subfamilies, including CIN, PCF, CYC/TB1. Protein structure genes had bHLH structures. Chromosomal localization 63 localized on 17 24 chromosomes Chinese genome. Expression pattern differed among different lineages spatiotemporally specific. Coexpression network indicated coexpressed involved activities or metabolic regulation expression levels class I (PCF) significantly downregulated, while II (CIN CYC/TB1) upregulated, suggesting may be metabolism As PgTCP26-02 gene was found to related ginsenoside synthesis, its predicted protein further analysed. Our results provide new insights origin, differentiation, evolution function ginseng, as well metabolism.

Language: Английский

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The spatiotemporal variations of L-glutamic acid and catechins during the development of etiolated tea leaves in ‘Huangjinye’

Scientia Horticulturae, Journal Year: 2024, Volume and Issue: 328, P. 112888 - 112888

Published: Jan. 28, 2024

Language: Английский

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CsREV-CsTCP4-CsVND7 module shapes xylem patterns differentially between stem and leaf to enhance tea plant tolerance to drought

Cell Reports, Journal Year: 2024, Volume and Issue: 43(4), P. 113987 - 113987

Published: March 21, 2024

Cultivating drought-tolerant tea varieties enhances both yield and quality of plants in northern China. However, the mechanisms underlying their drought tolerance remain largely unknown. Here we identified a key regulator called CsREV, which differentially regulates xylem patterns between leaves stems, thereby conferring plants. When occurs, upregulation CsREV activates CsVND7a-dependent vessel differentiation. when persists, differentiation is hindered as CsVND7a downregulated by CsTCP4a. This, combined with CsREV-promoted secondary-cell-wall thickness vessel, leads to enhanced curling leaves, characteristic closely associated plant tolerance. Notably, this inhibitory effect CsTCP4a on expression absent allowing stem vessels continuously differentiate. Overall, CsREV-CsTCP4-CsVND7 module utilized shape potentially balancing water transportation utilization improve

Language: Английский

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Regulation of biosynthesis of the main flavor-contributing metabolites in tea plant ( Camellia sinensis ): A review

Critical Reviews in Food Science and Nutrition, Journal Year: 2022, Volume and Issue: 63(30), P. 10520 - 10535

Published: May 24, 2022

In the process of adapting to environment, tea plants (Camellia sinensis) endow with unique flavor and health functions, which should be attributed secondary metabolites, including catechins, L-theanine, caffeine terpene volatiles. Since content these flavor-contributing metabolites are mainly determined by growth plant, it is very important understand their alteration regulation mechanisms. present work, we first summarize distribution, change characteristics main in different cultivars, organs under environmental stresses plant. Subsequently, discuss regulating mechanisms involved biosynthesis based on existing evidence. Finally, propose remarks perspectives future study relating metabolites. This review would contribute acceleration research characteristic breeding programs plants.

Language: Английский

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Dynamic change of tea (Camellia sinensis) leaf cuticular wax in white tea processing for contribution to tea flavor formation

Food Research International, Journal Year: 2022, Volume and Issue: 163, P. 112182 - 112182

Published: Nov. 20, 2022

Language: Английский

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Systematic Analysis of the R2R3-MYB Family in Camellia sinensis: Evidence for Galloylated Catechins Biosynthesis Regulation

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 12

Published: Jan. 3, 2022

The R2R3-MYB transcription factor (TF) family regulates metabolism of phenylpropanoids in various plant lineages. Species-expanded or specific MYB TFs may regulate species-specific metabolite biosynthesis including phenylpropanoid-derived bioactive products. Camellia sinensis produces an abundance specialized metabolites, which makes it excellent model for digging into the genetic regulation plant-specific biosynthesis. most abundant health-promoting metabolites tea are galloylated catechins, and epigallocatechin gallate (EGCG), is specifically relative C. sinensis. However, transcriptional catechin remains elusive. This study mined associated with A total 118 proteins, classified 38 subgroups, were identified. subgroups to expanded hypothesized be essential evolutionary diversification tea-specialized metabolites. Notably, nine these genes expressed preferentially apical buds (ABs) young leaves, exactly where catechins accumulate. Three putative displayed strong correlation key genes, suggesting a role regulating epicatechin (ECG) EGCG. Overall, this paves way reveal

Language: Английский

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Genome-Wide Analysis of the TCP Gene Family and Their Expression Pattern Analysis in Tea Plant (Camellia sinensis)

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: July 1, 2022

TEOSINTE BRANCHED1/CYCLOIDEA/PCF (TCP) transcription factors have been suggested to control the cell growth and proliferation in meristems lateral organs. A total of 37 CsTCP genes were identified divided into two classes, class I (PCF, group 1) II (CIN CYC/TB1, groups 2, 3). The residues Camellia sinensis (Tea plant) (CsTCP) proteins between definitely different loop, helix I, regions; however, eighteen conserved tandem was found bHLH. There are a large number homologous gene pairs three groups. Additionally, most obvious differences motif composition. results illuminated that supposed complementary functions, whereas those same seem display function redundancies. is no relationship members genome size, family has only expanded since divergence monocots eudicots. WGD/segmental duplication played vital role expansion tea plant, lot. Most 1 more widely non-specifically expressed, 2 mainly expressed buds, flowers, leaves. some up-/downregulated varying degrees under stress, 3 basically do not respond stress. TCP involved abiotic stress response mostly belong PCF group. Some may as Arabidopsis, but there functional differentiation.

Language: Английский

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Light Intensity Regulates Low-Temperature Adaptability of Tea Plant through ROS Stress and Developmental Programs

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(12), P. 9852 - 9852

Published: June 7, 2023

Low-temperature stress limits global tea planting areas and production efficiency. Light is another essential ecological factor that acts in conjunction with temperature the plant life cycle. However, it unclear whether differential light environment affects low adaptability of (Camellia sect. Thea). In this study, materials three groups intensity treatments showed differentiated characteristics for low-temperature adaptability. Strong (ST, 240 μmol·m-2·s-1) caused degradation chlorophyll a decrease peroxidase (POD), superoxide dismutase (SOD), catalase (CAT), ascorbate (APX), polyphenol oxidase (PPO) activities, as well an increase soluble sugar, protein, malondialdehyde (MDA), relative conductivity leaves. contrast, antioxidant enzyme content, were highest weak (WT, 15 μmol·m-2·s-1). Damage was observed both ST WT to moderate (MT, 160 frost resistance test. Chlorophyll strong behavior prevented photodamage, maximum photosynthetic quantum yield PS II (Fv/Fm) decreased increasing intensity. This suggests browning occurs on leaf surface through may have been stressed by previous reactive oxygen species (ROS). Frost intolerance mainly related delayed tissue development tenderness holding. Interestingly, transcriptome sequencing revealed stronger favors starch biosynthesis, while cellulose biosynthesis enhanced weaker light. It mediated form carbon fixation plant, associated

Language: Английский

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Advances in Purple Tea Research: Chemical Compositions, Anthocyanin Synthesis and Regulation, Processing, and Health Benefits

Horticulturae, Journal Year: 2024, Volume and Issue: 10(1), P. 50 - 50

Published: Jan. 4, 2024

Purple tea, renowned for its anthocyanin content and distinctive purple hue, has gained prominence. The in tea can exceed three times that of traditional green-leaf tea. harbors various anthocyanins, implicating intricate pathways biosynthesis transcriptional regulation. Concurrently, owing to chemical composition, the processing may be constrained, potentially influencing sensory attributes flavor profile richness anthocyanins yielded potential health benefits, including antioxidative anti-cancer properties, rendering a sought-after commodity market. However, current research on remains incomplete, indistinct networks regulatory mechanisms, incomplete characterization, need comprehensive investigations into biological activities. limited foundation greatly reduced popularity consumption This paper aims provide an overview recent advancements regulation as well compositions, processing, benefits review will groundwork future efforts selection innovation germplasm, expansion market consumption.

Language: Английский

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