白粉

A method combining chemical and biological experiments and computer-aided molecular design was used to optimize lead compounds with inhibiting activity against Sphaerotheca fuliginea.

本文介绍了用结合化学、生物实验以及计算机辅助分子设计方法优化对瓜类白粉病毒有抑制作用的先导化合物的研究。

Antifungal (Sphaerotheca fusca Blum.) and cytotoxic activities against Hela cell of the compounds were evaluated, and some compounds showed good biological activities.

测试了化合物对黄瓜白粉病菌的抑制活性和对宫颈癌细胞的毒性作用，部分化合物表现出较好的生物活性。

The inhibiting effects of extracts from 22 plant species to Sphaerotheca fuliginea were tested on cucumber seedlings with two cotyledons each.

采用小株子叶法测试了22种植物提取物对黄瓜白粉病菌的抑制作用。

According to a series of reaction of powdery mildew to different host, it could be confirmed that the disease was caused by Sphaerotheca fuliginea. There were two races, race 1 and race 2France, of which race 2 France was the dominant one.

根据一系列甜瓜白粉病菌鉴别寄主的抗感反应，初步确定北京地区瓜类蔬菜白粉病由Sphaerotheca fuliginea所致，且存在两个生理小种，即小种1和2France，优势生理小种是小种2France。

To reduce the growth of pathogen by 50%, the concentration of chitosan to restrain Botrytiscinera Persoon Fries was 0.53 mg/ml, Sphaerotheca humuli.

壳聚糖对三种腐烂病菌有效抑制中浓度分别为：草莓白粉病菌0.53mg/mL，草莓灰霉病菌1.31mg/mL，梨轮纹病菌0.51mg/mL。

For a reliable diagnosis of plant diseases and insect pests,spectroscopy analysis technique and mutispectral imaging technique are proposed to diagnose five cucumber diseases,namely Trichothecium roseum,Sphaerotheca fuliginea,Cladosporium cucumerinum,Corynespora cassiicola and Pseudoperonospora cubensis.

为了实现可靠的植物病虫害诊断，文章提出把光谱分析技术和多光谱成像技术相结合的方法用于常见的红粉、黑星、白粉、褐斑和霜霉五种黄瓜病害的识别研究。

At the fifth day after BTH, SA and SiO2 spraying, seedlings were inoculated with Sphaerotheca fuliginea, and disease indexes, leaf lignin and HRGP contents were determined for four times at alternate days.

以抗白粉病甜瓜品种'银帝'和感病品种'卡拉克赛'为材料，用BTH、SA和SiO2溶液分别预处理，5 d后接种白粉病菌并分4次调查处理植株的发病情况、测定叶片细胞壁中木质素和羟脯氨酸糖蛋白含量。

After spraying the fermentation supernatant of endophytic actinomycetes GKSHJA and PR1-8, the impact of the endophytic actinomycetes against Sphaerotheca fuliginea histomorphology were tested by the differential interference, and the enzyme activity of POD, SOD, PAL on cucumber leaf treated by spraying endophytic actinomycetes were tested by the spectrophotometer.

对喷施内生放线菌GKSHJA及PR1-8发酵上清液处理后采用微分干涉的方法观测生防菌对白粉菌的组织形态学影响，利用分光光度计测定喷施发酵液后黄瓜叶片内POD、SOD、PAL酶活变化。

Commassie brilliant blue staining can clearly display the different structures of Sphaerotheca fuliginea, such as germinating conidia, initial germtubes, hyphae and conidiophores, and hardly stain the host tissue, presenting a striking contrast between fungus and host tissue.

考马斯亮蓝组织透明染色方法可以清楚观察到白粉病菌的5个发育阶段，即萌发的分生孢子、初生芽管、胞间菌丝、分生孢子梗和后期菌落。考马斯亮蓝几乎使寄主组织不着色，不产生背景色干扰，而菌体变深蓝色。

A good protein powder, thermogenic and creatine, are all you need to spend you money on.

蛋白粉、发热剂与肌酸是值得你去投资的营养食品。

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。