姜黄素对酵母细胞影响的荧光分析

以最简单的真核生物——酿酒酵母为材料,利用姜黄素的荧光性质,借助荧光光谱法和荧光显微镜研究了姜黄素在酵母细胞中的定位及其对酵母生长的影响.结果表明,姜黄素可以进入酵母细胞中并抑制酵母生长,初步得到了姜黄素对酵母作用的量效关系和时间效应结果,证明了姜黄素可以与酵母细胞线粒体结合.本文结果为以酵母为模型研究姜黄素通过线粒体影响细胞代谢及其与细胞凋亡的关系奠定了基础.国家自然科学基金(批准号:81373296);;厦门大学细胞应激生物学国家重点实验室开放课题(批准号:SKLCSB2017KF003)资助~

纪念五四宪法颁布暨全国人民代表大会成立五十周年理论研讨会纪要

今年 9月是五四宪法颁布、全国人民代表大会成立五十周年。五四宪法是新中国的第一部宪法 ,为我国的社会主义民主法制奠定了基础 ,具有划时代的意义。坚持和完善人民代表大会制度 ,是新的历史条件下推进政治体制改革和社会主义政治文明建设的重要内容。基于“以学术表达纪念、以纪念促进学术”的目的 ,中国社会科学院法学研究所于 2 0 0 4年 9月 5日举办了“纪念五四宪法颁布暨全国人民代表大会成立五十周年理论研讨会”。来自全国各地的 70余位代表莅临会议 ,研讨了诸多热点和前沿问题

Morphological and molecular evidences of Aequorea taiwanensis n. sp. from Taiwan Strait,with mtCOI sequence analysis for genus Aequorea

【中文摘要】 报道了中国台湾海峡多管水母属一新种——台湾多管水母(Aequorea taiwanensis n.sp.),详细描述其形态特征,并基于线粒体COI基因片段序列,比较、分析了该新种和乳突多管水母、锥状多管水母的序列差异及遗传距离。形态学和分子学数据都支持台湾多管水母为多管水母属有效种。3种多管水母mtCOI基因片断序列在种间存在明显的多态性,3种多管水母的种间序列差异为9.10%~11.9%,种间遗传距离为0.097~0.130,说明该基因片段适用于多管水母属种、种以下阶元及地理种群甄别和种间系统进化学分析。结合其他学者研究结果,认为mtCOI序列差异10%~20%可以作为多管水母属及其他水螅水母纲动物同属种间差异的标准。 【英文摘要】 Aequorea taiwanensis n.sp., a new species of Aequorea: from Minnan-Taiwan Shoal fishing ground upwelling region was described in this paper. Mitochondrial cytochrome oxidase subunit I (mtCOI) gene fragments of A. taiwanensis, A. papillata and A. conica was successfully amplified by universal primers, and obtained 538 bp sequences. Sequence divergence and genetic distance was analysed based on the mtCOI gene sequences. Both morphological and molecular data supported that A. taiwanensis n.sp is a valid specie..

Aequorea taiwanensis n. sp (Hydrozoa, Leptomedusae) and mtCOI sequence analysis for the genus Aequorea

Aequorea taiwanensis, a new hydrozoan species from the Taiwan Strait Was described using Morphological and molecular characteristics. Both morphological and mitochondrial cytochrome oxidase subunit I (mtCOI) data supported A. taiwanensis n. sp. as a valid species. Sequence divergence and genetic distance of A. taiwanensis n. sp., A. papillata and A. conica were analysed based oil the mtCOI gene sequences. The mtCOI sequences from these three species of the genus Aequorea showed high variation frequency, with sequence divergences ranging from 9. 10% to 11. 9%, and pairwise genetic distances ranging from 0. 097 to 0. 130. MtCOI sequence analysis provided diagnostic molecular systematic characteristics for accurate identification and discrimination of the species of Aequorea or their populations, and will be used to resolve evolutionary relationships among them. It was Suggested that 10%-20% pairwise mtCOI sequence differences indicated the species-level divergence among congeneric species in the Hydromedusae