植物生物学

Since the 1990s , most literature on predicting weediness or invasiveness of plants has focused on the characteristics of the plant , or on the invaded environment .

20世纪90年代以来，关于植物入侵争论的焦点集中于入侵植物本身的生物学特点或入侵生境特点，然而，争议多于结论，至今未能找出有效预测外来植物入侵性的答案。

On the base of study on arbuscular endomycorrhiza of Alnus of Changbai Mountain and nitrogen-fixing woods of Northeast of China, the paper attempted to reveal the DNA molecular polymorphism of the symbiotic arbuscular endomycorrhizal fungi for the effect that make better use of the fungi resource.

本项研究利用分子生物学技术和研究方法对中国吉林长白山地区非豆科固氮植物以及东北地区固氮树木的丛枝菌根真菌DNA分子多态性及其与宿主植物之间的相互关系等进行初步研究，旨在利用分子生态学理论和研究方法揭示丛枝菌根真菌多样性及其与宿主植物之间相互适应和协同进化的一般规律，为更好地保护和利用这一重要的微生物资源提供理论依据。

With a study of plant community succession on 5 stocking rates,herbage utilizational efficiency and risk-benefit balance,it is suggested the sustainable development should follow:(1)no degradational principle of rangeland,(2)the maximum herbage utilizational efficiency,(3)the risk-benefit balance,When stocking rate was no more than 2.67 sheep/hm2,the proportion of grasses and plant biodiversity index and evenness were increased based on Artemisia frigida and short-grass rangeland.

草地畜牧业可持续发展的三大生物经济原则为草场不退化原则、最大生物学效率原则和风险-利润权衡原则：(1)草场不退化原则。在冷蒿小禾草退化草原上，暖季期间1.33～2.67羊/hm\+2的放牧率下可使其发生恢复演替，禾草的比例增大，植物多样性指数和均匀度指数均有所提高，从而达到利用式改良的目的；相反，若继续重牧或过牧，放牧绵羊喜食的植物种类将进一步减少，植物多样性指数也有所降低。

ABSTRACT Pedicularis species provide ideal materials to study flower evolution, pollination biology, and plant speciation for their substan...

马先蒿属植物以其丰富的花部变异为研究植物的花部进化与传粉适应，传粉生物学以及植物的物种形成提供了理想的材料。

ABSTRACT Pedicularis species provide ideal materials to study flower evolution, pollination biology, and plant speciation for their substantial variation in floral design.

马先蒿属植物以其丰富的花部变异为研究植物的花部进化与传粉适应，传粉生物学以及植物的物种形成提供了理想的材料。

This paper reviewed the research advances in the resistance to in-suck fungicide, including the biological characteristics of resistant and sensitive phytopathogenic fungi, the mechanism of in-suck fungicide to phytopathogenic fungi, the resistant mechanism of phytopathogenic fungi to in-suck fungi, molecular detection techniques of fungicide resistance to phytopathogenic fungi and the application of the resistance-fungicide of phytopathogenic fungi.

本文综述了近年来国内外植物病原真菌对内吸性杀菌剂抗药性研究在抗性菌和敏感菌的生物学特征、内吸性杀菌剂对植物病原真菌的作用机制、植物病原真菌对内吸性杀菌剂的抗药机制、抗性菌株的分子检测技术以及抗药性利用等方面的成果。

The invention relates to a new strain producing taxol and a taxol preparation method. The taxol is a diterpenoid alkaloid drug which is extracted from taxaceae plants and has a plurality of anti-tumor effects. Taxus, also known as yew, is a prehistoric plant with a history of 0.2 billion years and is a rare plant species with low growing speed; the biological characteristics of the taxus have high demand on the ecological environment; the natural renewal ability is poor, so the amount of the species is very limited, belonging to an endangered protection plant with limited resource, thus, scientists at home and abroad actively research and develop new taxol sources. The new strain for producing the taxol of the invention is the strain which is first separated from the bark of T.cuspidate Sieb.

产紫杉醇的新菌种及其选育和制备紫杉醇的方法，紫杉醇是从红豆杉属植物中提取出来的具有多种抗肿瘤疗效的二萜生物碱类药物，由于红豆杉，又名紫杉，是两亿年前的史前植物，是珍稀树种，生长速度缓慢，并且其生物学特性对生态环境要求较高，天然更新能力差，所以种群数量极为有限，属濒危保护植物，资源十分有限，因此，国内外学者都在积极地研究开发紫杉醇的新药源，本发明产紫杉醇的新菌种，所述的新菌种为从东北红豆杉T.cuspidate Sieb。

During the period of past three years, the project finished the research of conservation biology on the four endangered and endemic plants from Theaceae. Their detail distribution and living states were completely investigated, about 120 indivaduals of the critically endangered Euryodendron excelsum and abandant individuals and population of Apterosperma oblata were newly found.

本项目三年来，通过对山茶科猪血木、圆籽荷、猴子木、厚皮香及长果核果茶等濒危和特有植物的保护生物学研究，摸清了其野外详细分布、生长状况，发现极度濒危植物猪血木的个体数为120余株、濒危植物圆籽荷仍有大量的个体和种群。

According to the global distribution and other related information of important insects and acarids which endanger farming, forest and those products in 1996 to 2005, reported by the European and Mediterranean Plant Protection Organization and CAB International, 14 pests have been screened out which should be regarded as potential quarantining species from 145 pests after comparing and analyzing their habits, host plants, damage and spread.

依据EPPO(欧洲和地中海植物保护组织)和CABI (国际农业与生物科学中心)于1996～2005年陆续公布的对农业、林业及农林产品有害的重要昆虫和蜱螨类植物害虫的全球分布图以及其它一些相关资料，通过害虫生物学习性、寄主植物及其危害、传播途径等几个方面比较分析，我们从145种有害生物种筛选出14种，列为潜在的检疫性有害生物。

It covers the following topics: cultured plant species and its development history, evolution of plant unit and colony, plant growth and development and its yield formation, plant production and environment, production process management and its technology, plant propagation, greenhouse engineering, plant

植物生产学是应用生物学领域最为重要的主干课程，是将现代生物技术与工程技术具体应用于以植物为对象的生产过程，以取得植物生产的社会、经济的和生态效益。

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。