福建农业学报2025，Vol.40Issue(3)：291-297,7.DOI:10.19303/j.issn.1008-0384.2025.03.009
3个茶树品种吸收和转运硒的差异研究
Differentiate Selenium Uptakes and Translocations of Three Tea Varieties
摘要
Abstract
[Objective]Responses to selenium(Se)uptake and translocation of different tea cultivars were studied.[Method]Sand culture on Echa 1,Echa 11,and Echa 12 tea plants was conducted to determine the content and transport coefficient of Se,the phosphate transporter protein genes in the roots,and the major chemical components in the leaves under 0 or a stress of 0.05 mmol·L-1 Se.[Result]Without Se addition in the soil,Se content in the roots and stems did not significantly differ among the 3 varieties,but that in the leaves of Echa 11 higher than the others.However,with the 0.05 mmol·L-1 Se addition,it increased significantly in different parts of the plants of all varieties.Echa 1 and 12 had significantly more Se than Echa 11 in the roots,while Echa 12 significantly more than the other two in the stems and leaves.The Se translocation in the aboveground plant parts significantly affected the Se content in the leaves.And the expressions of CsPht1;2a in the roots of the 3 varieties paralleled the Se accumulation.The increased exogenous Se also significantly rose the contents of free amino acids by 34.01%,tea polyphenols by 18.19%,caffeine by 9.82%,and flavonoids by 29.95%in Echa 12(P＜0.05),and caffeine in Echa 1 by 24.58%and Echa 11 by 6.58%(P＜0.05).[Conclusion]The significant differences in Se content in the tea plants of 3 different varieties were attributed primarily to the varied aboveground Se translocation.CsPht1;2a was likely to play a significant role in the Se uptake and translocation as well.The effect of soil Se on the leaf quality of the tea plants grown on the ground,however,varied by the species of the cultivar.关键词
茶树品种/沙培/硒含量/磷酸转运蛋白/主要内含成分Key words
tea variety/sand culture/Se content/phosphate transporter protein/main chemical分类
农业科学引用本文复制引用
曹丹,杨明忠,刘艳丽,马林龙,梁金波,金孝芳..3个茶树品种吸收和转运硒的差异研究[J].福建农业学报,2025,40(3):291-297,7.基金项目
国家重点研发计划项目(2021YFD1601103) （2021YFD1601103）
湖北省重点研发计划项目(2023BBB043) （2023BBB043）
湖北省自然科学基金(联合基金)项目(2023AFD065) （联合基金）
湖北省种业高质量发展专项(HBZY2023A001-11) （HBZY2023A001-11）
湖北省农业科技创新中心项目(2021-620-000-001-024) （2021-620-000-001-024）
