【摘 要】
:
A small solute has been obtained with column chromatography, which only exists and accumulates in the leaves of dune reed in northwest China's desert region. It
【机 构】
:
Institute of Life Science
论文部分内容阅读
A small solute has been obtained with column chromatography, which only exists and accumulates in the leaves of dune reed in northwest China's desert region. Its unique polyamine and aromatic features are quite different from those well-known ones accumulated under stresses. The natural quantity of the solute is strikingly proportional to the level of local high temperature, and a large section is distributed in the photosynthetic chloroplasts. Under lab conditions, we have proved that the solute plays a role in protecting or conserving chloroplasts under heat stress. So it is reasonable to suppose that the high resistance of dune reed to environmental high temperature and/or drought is at least partially due to the accumulation of this unique solute.
其他文献
“旅游景观房产”的概念一经提出便迅速在全国蔓延开来,在旅游业、房地产业和休闲娱乐业都刮起了一阵强劲的旋风。休闲度假旅游将成为未来旅游活动的主流,但在中国,休闲度假
通过分析汽轮发电机液压系统常见故障,对其故障原因进行研究分析,并提出可行预防和处理措施,以期减少故障发生几率。
By analyzing the common faults of the hydraulic sys
CTC调度集中系统是信号系统中非常重要的一个子系统,文章主要针对客运专线调度集中系统的主要功能、系统结构等进行了简单介绍。
CTC scheduling centralized system is a v
本文针对路基常见的特征、病害产生的原因进行了分析与探讨,提出了防治措施.
目的 通过对以社区为基础的艾滋病 /性病预防的干预研究 ,建立社区艾滋病 /性病综合预防干预的模式并评价其效果。方法 采用系统抽样的方法抽取 650名矿区居民 ,进行多种形
通过对甘巴拉山K0-K7乳胶室所观测到的部分族事例与运用COSMOS,CORSIKA程序产生的模拟族事例进行了可分辨能量中心(EDC)的共线性的分析,结果表明:在实验族事例中,共线事例产
首先简单介绍中央空调的类型,然后重点探讨中央空调安装和现场检测问题.中央空调是一个系统工程,其安装施工质量的好坏,将直接影响到使用效果,甚至造成系统不能正常运行.
冰川末端位置的重复测量结果表明, 喜马拉雅山中段的冰川过去几十年一直处于退缩状态, 其中珠穆朗玛峰的冰川自1960年代以来平均退缩速度为5.5~8.7 m/a; 希夏邦马蜂的冰川自19
In the granite-NaF-H2O system, there exists a nucleation lag in the course of alkali feldspar crystallization indicated by experiments on crystallization kineti
石油企业HSE管理体系运行中存在着领导重视不够、缺乏总体运行计划、与日常管理脱节、风险识别和评价水平低、作业指导文件针对性不强、应急预案操作性不强、监督考核力度不