研究表明,党参多糖为党参药材中主要的化学成分,同时也是药效活性成分,本文拟采用苯酚-硫酸法和HPLC法,对10批潞党参药材及其他产地不同基源党参药材进行党参多糖和党参炔苷含量测定,并进行指纹图谱研究,为制订潞党参药材质量标准及党参资源的品质评价提供科学依据.
膜脂分子是膜的基本机构物质,它的组成和含量决定了膜的流动性、完整性及功能的正常行驶.重组膜脂分子是植物响应环境改变的重要方式.标志膜稳定性的膜脂比例PC/PE,DGDG/MGDG没有发生显变化,说明引种过程膜脂可以保持很好的稳定性及双层结构;在高山植物引种到低地的过程中,膜脂必然发生响应的一系列变化来适应该过程.高山植物的引种是将从极端环境转移到温和环境的过程,而这一过程与植物逆境处理过程相反.
根据调查,将以往古树生长不良、濒死乃至死亡的原因归结为内在因素、环境因素、病虫危害、人为破坏、管理因素、专业因素,基于以往濒死的杧果古树、圆叶蒲葵古树等成功保护、救治的经验,提出强化管理、专业介入、防止人为破坏、消除不良环境因素、病虫害预警与防治、古树健康诊断与古树活力提升的六大举措.
水平基因转移现象是指不经过有性生殖过程而实现基因转移的现象.高等植物之间的水平基因转移现象是近年来才被发现并受到广泛关注.植物之间的寄生过程是高等植物水平基因转移的一条重要途径.锁阳属有2个种,锁阳(Cynomorium songaricum Rupr.)和欧洲锁阳(Cynomorium coccineum Linn.)o锁阳主要分布于中国、中亚和蒙古,主要寄生在无患子目白刺科植物上.
马兰[Kalimeris indica(Linn.) Sch.-Bip.]为菊科马兰属多年生草本植物,其嫩茎叶、嫩梢及地下茎可食,全草可药用.性凉,味辛,归肺、肝、胃、大肠经,具有凉血止血,清热利湿,解毒消肿的功能,主治吐血,衄血,血痢,崩漏,创伤出血,黄疸,水肿,淋浊,感冒,咳嗽,咽痛喉痹,痔疮,痈肿,丹毒,小儿疳积[1].
Pheromone-binding proteins (PBPs), a sub-family of odorant-binding proteins (OBPs), are thought primarily to bind and transport the sex pheromones in moths.Considering multiple component constitution
The polyphagous Helicoverpa armigera (Hübner) and the oligophagous Helicoverpa assulta (Guenée) (Lepidoptera: Noctuidae) were crossed and backcrossed with both female parent species in our laboratory.
The β-thymosins are abundant peptides in vertebrates, and thymosin β4 (Tβ4) is a highly conserved member of the β-thymosin family.Tβ4 acts as an extracellular modulator in tissue repair, cell migratio
Insect pheromone binding proteins (PBPs) are believed to solubilize and transport hydrophobic sex pheromones across sensillum lymph to membrane-associated pheromone receptors.To address the molecular
Background: Hsp90 is vitally important among the various HSPs because its target proteins are always steroid hormone receptors, signaling kinases, and a variety of transcription factors involved in va