Analysis of the impact of latitude on the structure and composition of tea leaves and associated cold resistance

Food chemistry advances Pub Date : 2025-04-08 DOI:10.1016/j.focha.2025.100982

Tian Lili , Li Juan , Lin Haiyan , Yao Yuantao , Huang Jian′an

{"title":"Analysis of the impact of latitude on the structure and composition of tea leaves and associated cold resistance","authors":"Tian Lili , Li Juan , Lin Haiyan , Yao Yuantao , Huang Jian′an","doi":"10.1016/j.focha.2025.100982","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, we selected three tea (<em>Camellia sinensis</em>) varieties (Lucha 1, HuangJincha 2, Xueyacha 100). Lucha 1 exhibited the highest levels of sugars suggesting a link between the levels of these three sugars and cold resistance. Varying tea polyphenol and amino acid content in analyzed tea plant samples were associated with differences in leaf palisade tissue and spongy tissue thickness. The leaves of Lucha 1 were thicker, with thinning of the upper epidermis, thickening of the lower epidermis and spongy tissue, and tightening of the palisade tissue, increased stomatal density, and a waxy epidermis with visible crystals. Xueyacha 100 exhibited no epidermal waxy crystallization in the analyzed leaf tissues. Lucha 1 and Xueyacha 100 leaf cells contained chloroplasts rich in osmophilic granules, thylakoids, starch granules, and graminaceous granules. Latitude thus impacts tea leaf structure and composition and associated cold resistance, providing a foundation for selecting cold-resistant tea germplasm resources.</div></div>","PeriodicalId":73040,"journal":{"name":"Food chemistry advances","volume":"7 ","pages":"Article 100982"},"PeriodicalIF":0.0000,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food chemistry advances","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772753X2500098X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, we selected three tea (Camellia sinensis) varieties (Lucha 1, HuangJincha 2, Xueyacha 100). Lucha 1 exhibited the highest levels of sugars suggesting a link between the levels of these three sugars and cold resistance. Varying tea polyphenol and amino acid content in analyzed tea plant samples were associated with differences in leaf palisade tissue and spongy tissue thickness. The leaves of Lucha 1 were thicker, with thinning of the upper epidermis, thickening of the lower epidermis and spongy tissue, and tightening of the palisade tissue, increased stomatal density, and a waxy epidermis with visible crystals. Xueyacha 100 exhibited no epidermal waxy crystallization in the analyzed leaf tissues. Lucha 1 and Xueyacha 100 leaf cells contained chloroplasts rich in osmophilic granules, thylakoids, starch granules, and graminaceous granules. Latitude thus impacts tea leaf structure and composition and associated cold resistance, providing a foundation for selecting cold-resistant tea germplasm resources.

查看原文本刊更多论文

纬度对茶叶结构、成分及其抗寒性的影响分析

本研究选择了3个茶（Camellia sinensis）品种（庐茶1号、黄金茶2号、雪崖茶100号）。卢卡茶1号的糖含量最高，这表明这三种糖的含量与抗寒性之间存在联系。茶树样品中茶多酚和氨基酸含量的变化与叶栅栏组织和海绵组织厚度的差异有关。茶1号叶片较粗，上表皮变薄，下表皮和海绵组织变厚，栅栏组织变紧，气孔密度增大，表皮呈蜡质状，可见结晶。雪崖茶100叶片组织中未见表皮蜡质结晶。茶1号和雪雅茶100号叶片细胞中含有丰富的亲渗透颗粒、类囊体、淀粉颗粒和禾粒。纬度影响着茶叶的结构组成及其抗寒性，为选育耐寒茶叶种质资源提供了依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊