植物化学的

Botanically known as Echinacea purpurea, this beautiful purple coneflower contains chemical constituents that studies show stimulates the immune system's response to viral and bacterial invaders. Echinacea can be used preventively to safely curb minor illnesses, but there's a trick: you must use Echinacea frequently in the first few days of a minor illness, and for several days afterwards.

植物学名被称为紫锥菊，这个美丽的紫色金光菊属植物含有化学成分，研究显示它能刺激免疫系统对病毒和细菌的入侵有反应，紫锥菊可作为预防使用，能安全遏制小病，但是有个特点，你需要在小病的开始几天频繁地使用它，并且之后几天也是。

Recently, the scientists of American aerospace bureau discover, in the evergreen plant that observe a part of a historical period and green flowerer, a lot of have remove the effect of poisonous and chemical material inside the building.

最近，美国航空航天局的科学家们发现，常青的观叶植物以及绿色开花植物中，很多都有消除建筑物内有毒化学物质的作用。

The electron-dense lead phosphate deposits, an indication of ATPase activity, mainly distributed on the plasma membrane and tonoplast in the mesophyll cells of palisade and spongy tissue, in which there is no obvious differences of ATPase distribution and activities.

以及两者在-5℃下处理1d后的叶肉细胞进行了ATPase的超微细胞化学定位的比较观察，并对冷驯化可提高植物抗寒力及ATPase与植物抗寒性关系进行了探讨。

This paper summarizes the chemical constituents,pharmacological action and clinical applications of Alternanthera plant ,and the antiviral actions of Alternanthera philoxeroides in clinic are mainly generalized.

从化学成分、药理作用及临床应用三个方面综述了莲子草属植物的研究进展，着重总结了空心莲子草在临床上的抗病毒作用，为莲子草属植物和空心莲子草的进一步开发应用提供了参考。

It expounded the kind and function of halophytic vegetation which can make vegetation and pesticide, it also told us the manufacture and use method about halophytic vegetation, aim at trace standard of agricultural chemical which in agricultural trade to use agricultural ch...

面对在农产品贸易中苛刻的农药残留标准，使用植物源农药，减少化学农药的施用量，生产绿色无公害食品，盐生植物具有极大的潜在威力。

Since 1980s, the insecticidal plant has been investigated by multi-subjects crossed research in the world.

是我国著名的杀虫植物，自1980年代以来，已从化学和生物学的角度对这一杀虫植物进行了多学科的交叉研究。

Davidia involucrata Baill is a kind of Chinese protected special plant, and Ligustrum sinens gorwthing in Fujian China is used in Chinese traditional medicine, but there are not many published paper reaching in their chemical constituents.

珙桐是我国特有的国家一级保护植物，福建产女贞小腊是我国传统的一种中药材，目前对这两种植物的化学成分研究很少。

ResultsOnly five species of Pholidota genus were studied and 41 compounds were isolated and characterized including 9,10dihydrophenanthrenes, phenanthraquinone, bibenzyls, stilbenes, triterpenoids, phenyl propanoids, lignans, sterols and aliphatic compounds, and some plants and compounds exhibited analgesic, antioxidant, anticancer and NO production inhibitory activities.

结果目前石仙桃属植物研究所涉及的种类仅5种，从该属植物中分离出化学成分41种，包括9， 10二氢菲、菲醌、联苄、二苯乙烯、三萜、苯丙素、木脂素、甾体和脂肪族等结构类型。一些种类所含成分在镇痛、抗氧化、抗癌、抑制NO生成等方面显示了较好的活性。

Until now, all taxol used in cancer chemotherapy and scientific research is isolated from yew tree or semi-synthesized from its precursors such as baccatin III, 10-deacetylbaccatin III and so on which all are isolated from this natural plant.

至今为止，所有用于临床治疗和科学研究的紫杉醇都是从红豆杉植物中直接分离或由巴卡丁III， 10-脱酰基巴卡丁III等化学半合成前体合成而得，而这些前体也是由植物中分离得到的。

The " alarm signal" is a chemical message transmitted between individual plants: this too can be measured by the new equipment .

这种&警报信号&是植物与植物之间传递的一种化学信号，这也能通过新的装置探测出来。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。