查询词典 stems

Our work demonstrates that, in flooded environments, the aerenchyma formation in plant stems is directly related to increases of ethylene and auxin, and flooding may not be the direct stimulus for the formation of aerenchyma.

研究表明，在水淹条件下植物体内通气组织的发生与乙烯和生长素含量的增加有直接关系。

Aerenchyma is typical of the stems of many aquatic plants whose leaves float at the surface of ponds and lakes, giving added buoyancy to the tissues.

通气组织在体内形成一个相互贯通的通气系统，为植物体增加浮力和支持作用。

The results showed that it adapted to saltmorphic circumstances through the following characters: A lot of aerenchyma existed in the vegetative organs;Phellem highly expanded in roots;thick cuticula;more mucilage cells and aleurone grains in parenchyma of roots and stems;A lot of water storing...

结果表明，不同生态环境中生长的马齿苋解剖结构显著不同，盐生马齿苋具有适应盐渍环境的结构特征，这些特征表现为：营养器官通气组织发达；根的次生结构中木栓发达；根、茎的薄壁组织中含有大量的黏液细胞和糊粉粒；叶片表皮的角质膜厚；叶肉中含晶细胞、叶绿体及贮水组织丰富；而这些特征是黑土地上生长的马齿苋所不具备的。

Aims We investigated aerenchyma formation in stems of riparian plants Arundinella anomala and Salix variegate as affected by addition of ethylene and a-naphthalene acetic acid under non-flooded conditions in order to ascertain whether phytohormone ethylene and auxin are direct stimuli for aerenchyma formation in flooded plants.

为了探究乙烯和α-萘乙酸是否是水淹环境条件下植物体内通气组织形成的直接原因，对三峡库区岸生植物野古草和秋华柳在无水淹环境条件下施加乙烯利和α-NAA后茎中通气组织的形成情况进行了研究。

Five days following hormone additions, we obtained transverse sections of mid-stems of A. anomala and S. variegata and analyzed aerenchyma formation using E80i Nikon microscope, ACT-2U and Simple PCI software.

处理5 d后，采用切片法制备其茎中部横切面切片，用E80i Nikon显微镜进行观察，并运用ACT-2U和Simple PCI软件分析野古草和秋华柳茎中通气组织的形成情况。

Any of several herbs of the genera Ajuga and Lycopus in the mint family, having opposite leaves, square stems, and axillary clusters of purplish to white flowers.

夏枯草，筋骨草属植物一种唇形科筋骨草属和石松属的草本植物，有对生的叶子，直茎，腋生的紫色到白色花簇

Educative power stems from the essence of education which promote human's spirit and virtue, and from the educational public life which educatees inevitably move in. The essence of education and the educational public life define the essential characteristic of educative power, that is, the attributes of nature and alienability.

教育权力根源于促使人的灵魂和道德优秀的教育本质以及教育中的个体必然生活于其中的教育公共生活，后两者共同规定了教育权力的本质特性，即来自于教育本身的自然属性和来自于教育公共生活的让渡属性。

A world without professors or specialists or house–keepers with the profiles of policemen, a world which one could slice with one's thought as a fish slices the water with his fin, grazing the stems of the water–lilies, hanging suspended over nests of white sea eggs...How peaceful it is drown here, rooted in the centre of the world and gazing up through the grey waters, with their sudden gleams of light, and their reflections—if it were not for Whitaker's Almanack—if it were not for the Table of Precedency!

这个世界里没有教授，没有专家，没有警察面孔的管家，在这里人们可以像鱼儿用鳍翅划开水面一般，用自己的思想划开世界，轻轻地掠过荷花的梗条，在装满白色海鸟卵的鸟窠上空盘旋……在世界的中心扎下根，透过灰黯的海水和水里瞬间的闪光以及倒影向上看去，这里是多么宁静啊——假如没有惠特克年鉴——假如没有尊卑序列表！

The aim of the research was to primarily discuss the bacteriostatic activity of Alsophila spinulosa leaves and stems so as to provide basis for developing and utilizing Chinese traditional medicine Longgufeng.

初步探讨桫椤叶和茎干提取物的抑菌活性，为中药龙骨风研究开发提供依据。

MethodWith Staphylococcus aureus,Escherichia coli and Bacillus subtilis as tested bacterium,the bacteriostatic effects of ethanol extracts from Alsophila spinulosa leaves and stems on 3 kinds of bacteria were studied and compared with that of coptis extracts.

方法以金黄色葡萄球菌、大肠杆菌、枯草芽孢杆菌为供试菌种，研究了桫椤茎叶和茎干甲醇提取物对它们的抑菌作用，并与黄连提取物的抑菌效果进行比较。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。