旋花植物

The direction of rotation is often constant in a species; for example, Convolvulus always rotates in an anticlockwise direction.

在特定的物种中旋转的方向是恒定的，例如旋花科植物总是逆时针方向旋转。

Any of various similar trailing or twining plants, such as the black bindweed.

旋花属植物一种相似的蔓生或缠绕植物，如黑旋花

The flexible twining or climbing stem of certain plants, such as the hop, woodbine, or bindweed.

蔓，藤某些蔓生或缠绕植物的茎，如啤酒花、紫茎忍冬或旋花

"Convolvulus:any of various mostly trailing or twining plants of the widespread genus Convolvulus, having funnel-shaped flowers and including several weeds and a few grown as ornamental s."

旋花：任一种分布广泛的旋花属的通常为蔓生或对生的植物，开有漏斗状花朵，包括几种野草和几种作为观赏植物栽培的植物。

OBJECTIVE: Three sesquiterpene lactones 1-O-acetylbritannilactone, isoalantolactone and britannilactone were isolated from the roots of Inula helenium and the flowers of Inula japonica. The antitumor activities of the three sesquiterpenoids in the cell lines of HeLa, HEC-1, SHIN3, HOC-21 and HAC-2 were measured, and the relationship between structure and activity and the possible mechanisms were explored.

目的： 观察菊科植物中分离出的3种倍半萜化合物异土木香内酯、1-氧-乙酰大花旋覆花内酯和大花旋覆花内酯对体外培养的人子宫颈癌HeLa细胞、人子宫内膜癌HEC-1细胞、人卵巢透明细胞癌SHIN3及HOC-21细胞和人卵巢囊腺癌HAC-2细胞增殖的影响，研究这3种倍半萜化合物的体外抑制肿瘤细胞增殖作用及其结构与活性之间的构效关系，进而探讨3种倍半萜化合物的体外抑制肿瘤细胞增殖的可能机制。

Food plant (Ipomoea batatas; family Convolvulaceae) native to tropical America and widely cultivated in tropical and warm temperate climates.

旋花科植物，学名为Ipomoea batatas，块根可食。原产于热带美洲，广泛栽培于热带及暖温带地区

Study on the pollen morphology of the family Convolvulaceae of China.

标题 我国旋花科植物花粉形态的研究。

Study on the pollen morphology of the family Convolvulaceae of China.

Title 我国旋花科植物花粉形态的研究。

Several anti-tumor cell lines and carbonic anhydrase Ⅱ model were established. More than 10000 compounds and extracts from plants were screened using these models and about 10 compounds showed strong inhibitory activities. Two species of plants Inula helianthus-aquatica and Saussurea deltoidea were chosen to investigate chemical and bioactivity constituents based on the results of screening of extracts and fractions. 58 compounds were isolated and identified from these two plants, 6 compounds were found to be new and 14 compounds showed anti-tumor activities. We also studied the anti-tumor mechanism of the compound bigelovin isolated from Inula helianthus-aquatica. Bigelovin was found with apoptotic activity against cell line U266 by lowering the amount of important transcription factor E2F-1 which inhibits the cell cycle at G0/G1 stage. Docking study on 7 natural new phenolic inhibitors of CA Ⅱ and 3D-QSAR study on 61 sulfonamide inhibitors of CA Ⅱwere also investigated. The calculated results were in good correlation with experimental results.

基于以上两种重要疾病和研究组方向，本论文工作开展了多个肿瘤细胞株和碳酸酐酶Ⅱ靶标模型的建立和筛选工作，累计筛选1万多个/次样品，发现10余个活性较强化合物；从粗提取物筛选结果中选取两种抗肿瘤活性强的菊科植物水朝阳旋覆花(Inula helianthus-aquatica)和三角叶凤毛菊进行了系统化学和活性成分研究，分离鉴定了58个化合物，发现6个新化合物和14个抗肿瘤活性化合物；通过合作对水朝阳旋覆花中活性较强的bigelovin进行了抗肿瘤作用机制研究，发现它可能是通过降低G2期重要的转录因子E2F-1，致使细胞周期阻滞在G0/G1期，引起多发性骨髓瘤U266细胞凋亡；开展了7个新的天然酚类CAⅡ抑制剂的对接研究和61个合成的系列磺酰胺类CAⅡ抑制剂的3D-QSAR分析，结果表明计算与实验一致。

The results show that the bioaccumulation coefficience in the aboveground of Scnecio vulgaris、Sonchus brachyotus、Znula Britannica、Artemisia scoparia、Artemisia annua、Peucedamum terebinthaceum and Polygonum bungeanum are more l respectively,and the concentration of Cd in the aboveground of plant is more than that in root,which possessed basic characteristics of hype...

结果表明：欧洲千里光、巨荬菜、欧亚旋覆花、猪毛蒿、黄花蒿、石防风和柳叶刺蓼 7种植物对 Cd的富集系数最大，且地上部 Cd的含量大于根部 Cd的含量，具备了重金属超富集植物的基本特征；植物地上部重金属含量与植物上部生物量的大小无关；以杂草为研究对象，有可能筛选出地上部重金属富集量大并且地上部生物量也高的超富集植物。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。