高等植物的泛肽素基因及其基因表达

高等植物的泛肽素基因及其基因表达印莉萍,刘兴军,林忠平（首都师范大学生物系北京１０００３７）（中科院植物所北京１０００４４）ＵＢＩＯＵＩＴＩＮＧＥＮＥＡＨＤＪＤＳＧＥＮＥＥＸＰＲＥＳＳＩＯＮＩＮＨＩＧＨＥＲＰＬＡＮＴＳ￥ＹｉｎＬｉ－ｐｉｎｇ;ＬｉｕＸ...     

高等植物磷酸烯醇式丙酮酸羧化酶的基因结构及其基因表达的调节

本文综述PEPCase的cDNA克隆,基因克隆及其序列与基因结构的分析,并对其基因表达的调节、基因转移及深入研究的问题进行了论述。     

高等植物基因表达与转录因子

基因在植物体内的表达受到了严格的调控;不同基因,其表达程度不同。例如,与发育及分化有关的基因在表达时还有“时空和空间”的专一性问题,即它们只在特定组织中表达,而且只在特定的发育阶段表达。可见,高等植物基因表达调控起到了维持正常的生长、发育等一切生命活动的作用。目前,高等植物基因表达调控机制研究,已成为植物分子生物学的热点与中心问题,而在转录水平上基因表达调控的研究是这一热点中的重点。本文简要地介绍一下有关这方面的研究进展情况。     

ABA对高等植物基因表达的调节作用

评述高等植物种子发育期期间在逆境条件下ABA对有关基因表达的调节作用,这种调节可发生在转录和转译水平上。     

高等植物的基因转移

本文是1984年4月25日在瑞士弗里堡国家农业研究所举行的讨论会上,瑞士、英国、联邦德国、荷兰等四国的五位专家对遗传学的主要课题之一“高等植物的基因转移”的论述。——译者基因转移的过去、现在和未来在生物进化过程及在遗传学科学的发展和应用中,生物机体的细胞间和细胞内的基因转移总是头等重要的。这种基因转移是遗传变异的基本源泉,因此一方面对基因组的结构和功     

高等植物发育过程中基因表达的调控

一、概述植物的形态建成归根结蒂是由基因控制的,是基因的选择性表达及大分子的修饰和更新的过程。植物特定的基因在环境因素(如光)和体内因子(如内源植物激素、次生代谢物等)相互作用下,依时间和空间顺序表达出特定的 产物。     

外源基因引入高等植物

通过利用携带大肠杆菌-Ti杂种质体的根癌病农杆菌可以把在大肠杆菌K-12中无性繁殖基因引入Arabidopsis植物中,这个杂种质体由如下四个因素组成:(1)大肠杆菌     

外源基因引入高等植物

通过利用携带大肠杆菌-Ti杂种质体的根癌病农杆菌可以把在大肠杆菌K-12中无性繁殖基因引入Arabidopsis植物中,这个杂种质体由如下四个因素组成:(1)大肠杆菌     

Regulation of Gene Expression in Higher Plants

The study on regulation of gene expression in higher plants has attracted attention of many scientists and is also one of the major scientific research areas in modern biological studies. With advancement of the technology of genetic engineering, more and more details of gene regulation are revealed and it has been found that regulatory zones of most genes are located at the 5' upstream promoter regions. Now,the study on regulation of gene expression is mainly focused on light regulated genes, tissue specific genes, environmental stress induced genes, bormone-induced genes and so on. This article gives a more or less comprehensive review on the several aspects mentioned above.     

植物基因表达的代谢调控

通过分析代谢物、激素和环境因素对植物几种基因表达的影响,就植物基因表达的代谢调控进行了讨论,提出了开展有关这方面研究的一些设想。     

Gene Expression and Regulation of Higher Plants Under Soil Water Stress

Higher plants not only provide human beings renewable food, building materials and energy, but also play the most important role in keeping a stable environment on earth. Plants differ from animals in many aspects, but the important is that plants are more easily influenced by environment than animals. Plants have a series of fine mechanisms for responding to environmental changes, which has been established during their long-period evolution and artificial domestication. The machinery related to molecular biology is the most important basis. The elucidation of it will extremely and purposefully promote the sustainable utilization of plant resources and make the best use of its current potential under different scales. This molecular mechanism at least includes drought signal recognition (input), signal transduction (many cascade biochemical reactions are involved in this process), signal output, signal responses and phenotype realization, which is a multi-dimension network system and contains many levels of gene expression and regulation. We will focus on the physiological and molecular adaptive machinery of plants under soil water stress and draw a possible blueprint for it. Meanwhile, the issues and perspectives are also discussed. We conclude that biological measures is the basic solution to solving various types of issues in relation to sustainable development and the plant measures is the eventual way.Key Words: Higher plants, soil water stress, gene regulatory network, drought, anti-drought gene resources, signal, ion homeostasis, physiological mechanisms.     

高等植物的PIN基因家族

PIN是一类编码生长素极性运输载体元件的基因家族,影响着高等植物生长素的外向运输和众多生长发育过程。近年来该基因家族的相关成员陆续在不同物种中得到克隆。本文就PIN蛋白家族的结构、功能和活性调控的研究进展作一介绍。     

利用烟草瞬时表达系统检测高等植物基因的剪接加工

解析基因的剪接加工机制是了解植物形态建成、生长发育和逆境胁迫应答的重要环节．与动物相比,植物中相应的研究进展较为缓慢．利用农杆菌介导的烟草瞬时表达系统,分别对单子叶植物水稻BADH2和双子叶植物拟南芥GR7基因片段在烟草叶片中的转录后剪接加工进行分析．结果表明,一些重要剪接调控元件在植物中保守存在,而烟草瞬时表达系统可以作为研究高等植物剪接调控的重要工具,快捷灵敏地检测基因的剪接加工方式．