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Identification and Functional Characterization of a Tonoplast Dicarboxylate Transporter in Tomato (Solanum lycopersicum) | |
Liu, Ruiling1; Li, Boqiang; Qin, Guozheng; Zhang, Zhanquan; Tian, Shiping1 | |
2017 | |
发表期刊 | FRONTIERS IN PLANT SCIENCE |
ISSN | 1664-462X |
卷号 | 8 |
摘要 | Acidity plays an important role in flavor and overall organoleptic quality of fruit and is mainly due to the presence of organic acids. Understanding the molecular basis of organic acid metabolism is thus of primary importance for fruit quality improvement. Here, we cloned a putative tonoplast dicarboxylate transporter gene (SlTDT) from tomato, and submitted it to the NCBI database (GenBank accession number: KC733165). SlTDT protein contained 13 putative transmembrane domains in silico analysis. Confocal microscopic study using green fluorescent fusion proteins revealed that SlTDT was localized on tonoplast. The expression patterns of SlTDT in tomato were analyzed by RT-qPCR. The results indicated that SlTDT expressed in leaves, roots, flowers and fruits at different ripening stages, suggesting SlTDT may be associated with the development of different tissues. To further explore the function of SlTDT, we constructed both overexpression and RNAi vectors and obtained transgenic tomato plants by agrobacterium-mediated method. Gas chromatographymass spectrometer (GC-MS) analysis showed that overexpression of SlTDT significantly increased malate content, and reduced citrate content in tomato fruit. By contrast, repression of SlTDT in tomato reduced malate content of and increased citrate content. These results indicated that SlTDT played an important role in remobilization of malate and citrate in fruit vacuoles. |
关键词 | tomato tonoplast transporters overexpression RNAi organic acid composition |
学科领域 | Plant Sciences |
DOI | 10.11646/phytotaxa.316.2.2 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | FRUIT-DEVELOPMENT ; APPLE FRUIT ; ORGANIC-ACIDS ; MALATE ; METABOLISM ; EXPRESSION ; ACCUMULATION ; CHANNEL ; MEMBRANE ; BERRIES |
WOS记录号 | WOS:000406967500002 |
出版者 | FRONTIERS MEDIA SA |
文献子类 | Article |
出版地 | LAUSANNE |
资助机构 | National Key Research and Development Program of China [2016YFD0400902] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31530057] ; Youth Innovation Promotion Association CAS [2015063] |
作者邮箱 | tsp@ibcas.ac.cn |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/22355 |
专题 | 中科院北方资源植物重点实验室 |
作者单位 | 1.Chinese Acad Sci, Key Lab Plant Resources, Inst Bot, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Ruiling,Li, Boqiang,Qin, Guozheng,et al. Identification and Functional Characterization of a Tonoplast Dicarboxylate Transporter in Tomato (Solanum lycopersicum)[J]. FRONTIERS IN PLANT SCIENCE,2017,8. |
APA | Liu, Ruiling,Li, Boqiang,Qin, Guozheng,Zhang, Zhanquan,&Tian, Shiping.(2017).Identification and Functional Characterization of a Tonoplast Dicarboxylate Transporter in Tomato (Solanum lycopersicum).FRONTIERS IN PLANT SCIENCE,8. |
MLA | Liu, Ruiling,et al."Identification and Functional Characterization of a Tonoplast Dicarboxylate Transporter in Tomato (Solanum lycopersicum)".FRONTIERS IN PLANT SCIENCE 8(2017). |
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phytotaxa.316.2.2.pd(6910KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 |
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