Evidence map›Paper›PMID 39517196›Full record

ArticleFoods (Basel, Switzerland)2024

Impact of Mild Field Drought on the Aroma Profile and Metabolic Pathways of Fresh Tea (

Xiaohui Liu, Fabao Dong, Yucai Li, Fu Lu, Botao Wang, Taicen Zhou, Degang Zhao, Mingzheng Huang, Feifei Wang

Abstract read
In one paragraph

Article in Foods (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Xiaohui LiuPlant Conservation & Breeding Technology Center, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Institute of Prataculture, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China.ORCID 0009-0004-2565-0824
Fabao DongCollege of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550025, China.
Yucai LiCollege of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550025, China.
Fu LuCollege of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550025, China.
Botao WangCollege of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550025, China.
Taicen ZhouCollege of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550025, China.
Degang ZhaoPlant Conservation & Breeding Technology Center, Guizhou Key Laboratory of Agricultural Biotechnology, Guizhou Institute of Prataculture, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China.ORCID 0000-0003-0546-2960
Mingzheng HuangCollege of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550025, China.ORCID 0000-0002-3009-0559
Feifei WangKey Laboratory of Plant Functional Genomics of the Ministry of Education, Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Institutes of Agricultural Science, Yangzhou University, Yangzhou 225009, China.

Funding

the China Postdoctoral Science Foundation 2021M693807the Open Fund Project of the Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education (Gui-zhou University) QJH-KY-Z [2020]255the Science and Technology Plan Project of Guizhou province QKHJC-ZK[2022] YB180
6 · The paper itself

Abstract

Aroma plays a pivotal role in defining tea quality and distinctiveness, and tea producers have often observed that specific drought conditions are closely associated with the formation and accumulation of characteristic aroma compounds in tea leaves. However, there is still limited understanding of the differential strategies employed by various tea cultivars in response to drought stress for the accumulation of key volatile aroma compounds in fresh tea leaves, as well as the associated metabolic pathways involved in aroma formation. In this study, two widely cultivated tea cultivars in China, Fuding Dabai (FD) and Wuniuzao (WNZ), were examined to assess the impact of mild field drought stress on the composition and accumulation of key volatile aroma compounds in fresh leaves using headspace gas chromatography-ion mobility spectrometry (HS-GC-IMS) and headspace solid phase micro-extraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) technologies. Results revealed that drought stress led to a substantial increase in the diversity of volatile compounds (VOCs) in FD, while WNZ exhibited a notable rise in low-threshold VOC concentrations, amplifying sweet, floral, fruity, and earthy aroma profiles in post-drought fresh leaves. Through partial least squares discriminant analysis (PLS-DA) of HS-GC-IMS and HS-SPME-GC-MS data, integrating variable importance projection (VIP) scores and odor activity values (OAVs) above 1, 9, and 13, key odor-active compounds were identified as potential markers distinguishing the drought responses in the two cultivars. These compounds serve as crucial indicators of the aromatic profile shifts induced by drought, providing insights into the differential metabolic strategies of the cultivars. Additionally, KEGG enrichment analysis revealed 12 metabolic pathways, such as terpenoid biosynthesis, fatty acid synthesis, cutin, suberine, and wax biosynthesis, and phenylalanine metabolism, which may play crucial roles in the formation and accumulation of VOCs in tea leaves under drought stress. These findings provide a comprehensive framework for understanding the cultivar-specific mechanisms of aroma formation and accumulation in tea leaves under mild drought conditions.

Indexed as

aroma profileCamellia sinensis cultivardrought stressfresh tea leavesgas chromatography–ion mobility spectrometry (GC-IMS)headspace solid-phase micro-extraction gas chromatography–mass spectrometry (HS-SPME-GC-MS)odor-active aroma compoundsodor activity values (OAVs)

Identifiers

PMID39517196
PMCPMC11544960

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.