植物组织特异性生物钟研究进展  

Research Progress of Tissue-specific Circadian Clock in Plant

作　　者：武小龙 许琦 刘铃 诸葛强 Wu Xiaolong;Xu Qi;Liu Ling;Zhuge Qiang(Key Laboratory of Forest Genetics ＆ Biotechnology of the Ministry of Education,Co-Innovation Center for the Sustainable Forestry in Southern China,College of Biology and Environment,Nanjing Forestry University,Nanjing,210037)

机构地区：[1]南京林业大学生物与环境学院南方现代林业协同创新中心林木遗传与生物技术省部共建教育部重点实验室,南京210037

出　　处：《分子植物育种》2018年第22期7527-7534,共8页Molecular Plant Breeding

基　　金：国家自然科学基金项目(31570650);国家国际科技合作专项(2014DFG32440);江苏高校优势学科建设工程项目(PAPD)共同资助

摘　　要：组织特异性生物钟是指多细胞生物个体中生命活动在各组织中差异表达的由时序结构决定的内在节律性。在哺乳动物中,昼夜节律网络中的组织特异性分级一直广受争论,但是由于技术所限,在植物中研究甚少。对一些生物钟基因的研究,可以增强植物的适应性和抗逆性,提高生物量。通过对组织特异性生物钟系统的修饰,我们可能会操纵目标组织来调节特异的农业性状。本研究对近期一些关于植物中组织特异性生物钟以及它们之间分级耦合网络的研究进行了分析总结,并描述了这些生物钟的组织特异性功能及其性质,进一步讨论了这一网络结构以及其中可能共享该网络时序信息的潜在信使。Tissue-specific circadian clock refers to the intrinsic rhythms that are differentially expressed in various tissues as determined by the temporal structure of life activities in multicellular organisms. Tissue-specific hierarchies in circadian networks has been widely debated in mammals, whereas little is known in plants owing to technology limitations. Research on some circadian clock genes can enhance the adaptability and resistance of plant, meanwhile, increase biomass. Modification of a circadian clock system in a specific tissue might allow us to regulate specific agricultural traits regulated by manipulating the targeted tissue. In this review, we analyzed and summarized tissue-specific circadian clock in plant and the research of the coupling network hierarchies between them, and described tissue specific function and properties of these circadian clocks as well. In addition, we discussed the structure of the network and potential messengers that might share temporal information on such a network.

关 键 词：生物钟 昼夜节律 组织特异性 分级网络 耦合因子 

分 类 号：Q945[生物学—植物学]