自然科学版
陕西师范大学学报(自然科学版)
生命科学
丹参法呢基焦磷酸合酶基因(SmFPPS1)的表达模式
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周露1,化文平1,2,杨滢1,王喆之1,李翠芹1*
(1教育部药用资源与天然药物化学重点实验室;西北濒危药材资源开发国家工程实验室;陕西师范大学 生命科学学院,陕西 西安 710062; 2 陕西教育学院 生命科学与技术系,陕西 西安 710100)
周露,女,硕士研究生,主要研究方向为植物生物技术. E-mail:angel_276653819@126.com.*通信作者: 李翠芹,女,副教授,博士. E-mail: licuiqin16@snnu.edu.cn.
摘要:
克隆了丹参中萜类物质合成相关的法呢基焦磷酸合酶基因(farnesyl diphosphate synthase, SmFPPS1, HQ687768),并对其序列特征进行了分析,发现该基因编码产物含有异戊烯基转移酶的特征结构域定位于细胞质中.功能互补分析显示,SmFPPS1不具有牻牛儿基牻牛儿基焦磷酸合酶(geranylgeranyldiphosphate synthase, GGPPS)活性.实时荧光定量PCR分析结果显示,SmFPPS1在丹参生长的各个时期具有一定的组成性表达,在其花期的各器官中主要在花中表达,而且其表达受到茉莉酸甲酯(methyl jasmonate, MeJA)和真菌诱导子信号的诱导.
关键词:
丹参;法呢基焦磷酸合酶;表达模式
收稿日期:
2011-12-25
中图分类号:
Q945.3
文献标识码:
A
文章编号:
1672-4291(2013)02-0070-06
基金项目:
国家自然科学基金资助项目(31000134);中央高校基本科研业务费重点项目(GK200901014).
Doi:
Expression pattern of farnesyl diphosphate synthase(SmFPPS1) from Salvia Miltiorrhiza Bunge
ZHOU Lu1, HUA Wen-ping1,2, YANG Ying1, WANG Zhe-zhi1, LI Cui-qin1*
(1 Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, Shaanxi Normal University, Xi′an 710062,Shaanxi,China; 2 Shaanxi Institute of Education, Department of Life Scienceand Technology, Xi′an 710100, Shaanxi, China)
Abstract:
Tanshinones are the major active components of Danshen, which are derived from terpenoids, and farnesyl diphosphate synthase (FPPS) is a key enzyme in terpenoids biosynthetic pathway. A novel FPPS(SmFPPS1, HQ687768) in Salvia miltiorrhiza was cloned and characterized. Bioinformatics analysis showed that SmFPPS1 locates in cytoplasm, and it contains a prenyltransferase domain and two Asp-rich characteristic motifs. The functional complementation tests showed that SmFPPS1 didn′t exhibit activity of GGPPS. Quantitative real-time PCR analysis revealed that the gene expressed constitutively in different development periods, mainly in flowers, and the expression could be induced by methyl jasmonate (MeJA) and fungal elicitor signal.
KeyWords:
Salvia miltiorrhiza; farnesyl diphosphate synthase; expression pattern