植物化学

The journal well informs the research advances in the fields of experimental biology and ecology of insects and other terrestrial arthropods, with both pure and applied scopes, mainly including chemical and sensory ecology, infochemicals, behavioural ecology, biosystematics, evolution, nutrition and natural and transgenic plant resistance etc.

该杂志全面提供了昆虫与其他陆地节肢动物实验生物学与生态学的研究进展，包括理论与应用范围，内容主要涉及化学与感官生态学、信息化学、行为生态学、生物系统学、进化、营养以及自然与转基因植物抗性等等。

Smell is tougher to implant than colour because it not only matters whether a plant can make odoriferous chemicals, it also matters what it does with them.

在花中加入香味要比加入颜色难，因为前者涉及植物能否合成有味化学物质以及如何处理这些化学物质。

The development and history of chemical control for powdery mildew was briefly reviewed, and some important fungicides and the mechanism of their action were introduced.

对植物白粉病的化学防治历史和发展进行了综述，同时介绍了一些重要的药剂及其作用机制，并讨论了白粉病化学防治中存在的问题。

In order to study relationship between insects and plants in island habitats,a survey was carried out of intensity and patterns of Castanopsis sclerophylla leaf eating by insects on several isles in the Qiandao Lake,Zhejiang Province.

昆虫从植物获得食物，对植物造成损伤，也对植物造成自然选择的压力，使它产生化学和物理的防卫机制，这种协同进化关系维持了热带森林丰富的物种多样性[1]。

Nutrition solution culture, ICP-AES, the differential centrifugation technique and sequential chemical extraction method, suppression subtractive hybridization , RAPD were used in this thesis to study the mechanisms of copper tolerance and accumulation by Commelina communis grown in copper mine deposit which was reported to be a Cu hyperaccumulator, compared with C. communis grown in normal soil. Several aspects were examined, including: difference of copper tolerance and accumulation between C. communis grown in copper mine deposit and that grown in normal soil; difference of growth and nutrient accumunation between C. communis grown in copper mine deposit and that grown in normal soil under copper treatment; physiological differences between between C. communis grown in copper mine deposit and that grown in normal soil under copper treatment; subcellular distribution and chemical forms of Cu in C. communis; identification of cDNA fragments differentially expressed in C. communis grown in copper mine deposit; genetic diversity and copper tolerance of C. communis, tolerance mechanisms to copper in C. communis are discussed.

中文题名鸭跖草对铜的耐性机理和富集特征研究副题名外文题名 Mechanisms of Cu tolerance and accumulation by Commelina communis 论文作者廖斌导师蓝崇钰束文圣学科专业环境科学研究领域\研究方向学位级别博士学位授予单位中山大学学位授予日期2003 论文页码总数128页关键词重金属污染植物修复超富集植物土壤污染铜污染鸭跖草馆藏号BSLW /2003 /X53 /12 论文以本实验室报道的生长于矿山上的铜超富集植物鸭跖草和生长于正常土壤中的鸭跖草为试验材料，分别运用溶液培养法、ICP-AES元素测定技术、差速离心法和化学试剂逐步提取法、抑制消减杂交技术、RAPD技术研究了矿山和非矿山两种生境鸭跖草对铜的耐性和吸收积累的差异，两种生境鸭跖草在铜胁迫下养分吸收和积累的差异，两种生境鸭跖草在铜胁迫下生理反应的差异，以及铜在鸭跖草细胞内的分布及结合形态研究，矿山鸭跖草差异表达的cDNA克隆，铜对鸭跖草种群遗传分化的影响，从这几个方面探讨了矿山鸭跖草对铜的耐性机理。

Some water samples from intakes and outlets of 3 wetland pond beds growing Phragmites communis Trin, Typha angustifolia and Cyperus alternifolius were respectively taken for monitoring and contrasting 5 main water quality indexes including dissolved oxygen, chemical oxygen demand, biochemical oxygen demand in 5 days (BOD5), total nitrogen, and total phosphorus month by month all year around, so as to discover influences of different plant species on water purification efficiency.

摘 要：通过对成都活水公园人工湿地中的3种优势挺水植物所在塘床进出水口的5个主要水质指标：水中溶解氧（dissolved oxygen， DO）、化学需氧量（chemical oxygen demand， CODcr）、5日生化耗氧量（biochemical oxygen demand in 5 days， BOD5）、总氮（total nitrogen， TN）、总磷（total phosphorus， TP）的全年逐月对比监测，探索不同植物种类对污水净化效率的影响，并对湿地中不同植物塘净化效率产生差异的原因作了较全面的分析讨论。

This year, his group showed that EDR1's role is to weaken a plant alarm signal called salicylic acid, a close chemical relative of aspirin that is produced by cells in diseased parts of the plant and orchestrates the plant's defences against the infection.

今年，他的小组显示，edr1的作用在于削弱一种称为水杨酸的植物预警信号，水杨酸是阿斯匹林的化学近亲，由植物罹病部位的细胞分泌，负责组织植物抵抗感染。

At last, the combination of chlorophyll meter and the remote sensing, the use of chlorophyll fluorescence technique in the nutrition diagnosis of plant nitrogen, and the assessment of the forest ecosystem health and the evaluation of ecosystem services by the nutrition diagnosis of plant nitrogen, were discussed.

根据植物氮素营养诊断的发展脉络，总结了化学诊断和无损测试技术的主要内容，重点阐述了植株硝酸盐快速诊断、叶绿素仪和遥感技术在作物氮素营养诊断及氮肥推荐中的应用原理、优缺点以及发展现状，提出可将叶绿素仪和遥感技术结合使用、利用叶绿素荧光技术诊断植物氮素营养以及将植物氮素营养诊断技术应用于森林生态系统健康和生态系统服务功能的评估。

According to depositions of nanostructured silica in plants and chemically synthesized nanostructured silica sprayed into leaves and physical properties of leaf conferred by silica depositions as well, the first step reaction of high-specific supramolecular recognition process of fungi spores and host surfaces is discussed. Nanostructured silica can alter leaf physical properties including topography and hydrophobicity and affect extracellular matrix release and formations of germ tube, appressorium and penetration peg.

初步揭示了纳米结构SiO〓与植物真菌病害发生的关系：从化学合成的纳米结构SiO〓在叶表的沉积以及沉积之后赋予植物叶片独特的物理学特性入手，详细研究了纳米结构SiO〓抑止真菌孢子和寄主表面的高度专一性的超分子识别过程的第一步反应，从而提出纳米结构SiO〓可能改变植物叶表面原有的拓扑结构和疏水等物理学特性，即形成特殊的双亲性表面，影响真菌胞外物质的释放和芽管、附着胞及侵染钉的形成，阻断真菌孢子早期的侵染过程，从而确定靶向的真菌病害的控制措施。

Plant secondary metabolites are the products of interaction of plant and environment, which including primary compounds of terpenes, alkaloids, flavones, steroids, phenols, etc.

植物的次生代谢物质是植物与环境相互作用的产物，是植物建立起来的用以抵抗植食者及病原菌侵害的化学防御机制。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了