红豆杉离体胚培养快速育苗研究

采用Ｂ５和ＭＳ相组合的ＢＭ基本培养基和适宜浓度的激素（２,４－Ｄ,６－ＢＡ和ＧＡ３）能解除红豆杉种胚的休眠．单因子试验和不同组合的正交试验结果显示：单独使用２,４－Ｄ０．１ｍｇ／Ｌ,６－ＢＡ２ｍｇ／Ｌ和ＧＡ３２ｍｇ／Ｌ均在一定程度上促使红豆杉种胚的萌发,萌发率分别为７０％,５５％和２８．６％;最佳正交组合为６－ＢＡ１ｍｇ／Ｌ＋２,４－Ｄ０．１ｍｇ／Ｌ＋ＡＣ４ｇ／Ｌ,萌发率达８１％．     

荞麦组织培养中的植株再生

用荞麦无菌苗的幼茎和幼叶作外植体分别接种在ＭＳ补加不同激素组合的培养基上培养获得再生植株。实验结果表明,适宜诱导愈伤组织的激素组合为２．４－Ｄ４．０ｍｇ／Ｌ＋ＫＴ０．２ｍｇ／Ｌ,适宜愈伤组织生长的激素组合为２．４－Ｄ１．０ｍｇ／Ｌ＋ＫＴ１．０ｍｇ／Ｌ。诱导芽的较适宜的组合为６－ＢＡ３．０ｍｇ／Ｌ＋ＩＡＡ０．１ｍｇ／Ｌ,不定芽接种到含ＭＳ＋ＩＢＡ２．０ｍｇ／Ｌ＋ＫＴ０．１ｍｇ／Ｌ的ＭＳ培养基上就能生     

甜瓜种苗克隆

以古拉巴、蜜翠、伊丽莎白,西莫洛托４个引进杂交种甜瓜和七宝甜瓜,小麦瓜,青皮绿肉、亭林雪瓜本地品种为材料,用其子叶为外植体进行培养,获得无性繁殖系,结果表明,杂交种的芽诱导率高于本地品种;在１４种激素配比组合中ＭＳ＋６－ＢＡ０．５ｍｇ／Ｌ＋ＩＡＡ０．０５ｍｇ／Ｌ培养基丛生芽诱导率最高,达７２％－７６％;ＭＳ＋６－ＢＡ０．２ｍｇ／Ｌ＋ＩＡＡ０．０５ｍｇ／Ｌ培养基最利于芽伸长;生根培养基为ＭＳ＋ＩＡＡ０．２ｍｇ／Ｌ＋ｎａａ０．５ｍｇ／Ｌ,平均每粒种子可获得的８棵再生植株。     

骆驼刺高效离体植株再生体系的建立

通过对络驼刺（Ａｌｈａｇｉ ｐｓｅｕｄａｌｈａｇｉ Ｄｅｓｖ）不同外植体来源、不同培养基及激素配比的比较,建立骆驼刺培养高效再生植株实验体系。表明骆驼刺下胚轴切段在含１．５￣２．０ｍｇ／Ｌ２,４－Ｄ和０．５￣１．０ｍｇ／Ｌ ６－ＢＡ的ＭＳ培养基中１００％诱导愈伤组织,在含１．５ｍｇ／Ｌ ６－ＢＡ和１．０ｍｇ／Ｌ ＮＡＡ的ＭＳ培养基上愈伤组织分化成苗,转至含２．０ｍｇ／Ｌ ＩＢＡ和０．２ｍｇ／Ｌ ＮＡＡ的ＭＳ培养基上成根得到完整再生植株,组织学观察表明植株再生主要为器官发生途径,染色体稳定遗传。     

雪兔子叶的组织培养及植株再生

以雪兔子无菌苗的幼叶为外植体,接种到ＭＳ补加ＮＡＡ（１．０－２．０）ｍｇ／Ｌ、６－ＢＡ（０．１－１．０）ｍｇ／Ｌ的培养基上诱导愈伤组织,其中以ＭＳ＋ＮＡＡ２．０ｍｇ／Ｌ＋６－ＢＡ０．５ｍｇ／Ｌ的诱导效果最好,经６周培养即可形成大量的黄绿色愈伤组织,诱导率可达１００％,经２－３次继代培养后,将生长发良好的愈伤组织转接到ＭＳ附加６－ＢＡ（０．５－２．０）ｍｇ／Ｌ、ＩＡＡ（０．０５－０．１）ｍｇ／Ｌ、Ｎ     

巴西铁的茎组织培养

以巴西铁（Ｄｒａｃａｅｎａ　ｓａｎｄｅｒｉｅｎａ）茎段为接种材料，ＭＳ为基本培养基，吲哚乙酸（ＩＡＡ）、茶乙酸（ＮＡＡ），２，４－二氯苯氧乙酸（２．４－Ｄ）、６－苄氨基嘌呤（６－ＢＡ）、６一糠基氨基嘌呤（６－ＦＡ）、吲哚丁酸（ＩＢＡ）、生根粉（ＡＢＴ１）、玉米素（ＺＴ）为附加成分，进行诱导、分化、生根试验。诱导结果表明：ＩＡＡ不起作用，２，４－Ｄ有较好的促进作用，０．５ｍｇ／Ｌ（２，４－Ｄ）＋２ｍｇ／Ｌ（６－ＢＡ）组合，诱导率高达９０％。分化结果表明：ＮＡＡ、６－ＢＡ效果较好，６－ＦＡ作用不明显，ｌｍｇ／ＬＮＡＡ＋４ｍｓ／Ｌ（６－ＢＡ）＋２ｍｓ／ＬＺＴ组合，分化率最高．达８１．１％。生根结果表明：ＭＳ＋０．５ｍｇ／ＬＮＡＡ＋０．５ｍｇ／Ｌ（６－ＦＡ），ＭＳ＋０．４ｍｇ／ＬＮＡＡ＋２ｍｇ／ＬＩＢＡ，ＭＳ＋０．２ｍｇ／ＬＮＡＡ＋０．１ｍｇ／Ｌ（６－ＦＡ）＋ＡＢＴ１三种培养基均发根，生根率７０％以上，根粗，但有点脆，若培养基中加入活性碳产生的根则细而韧。     

建兰簇生原球茎的诱导及分化诸因素研究

以建兰的腋芽为外植体,诱导出了簇生原球茎．Ｂ５和ＭＳ培养基均适宜,在１～５ｍｇ／ＬＮＡＡ和０．５～３ｍｇ／ＬＢＡ的范围内,激素含量高,有利于簇生原球茎的诱导．激素浓度高于４ｍｇ／Ｌ,能形成假根茎．假根茎和簇生原球茎均能分化出营养芽和花芽．花芽在连续光照下,可在试管内开花．椰乳亦是原球茎诱导的促进物质,以８％～１５％的浓度为宜．１ｍｇ／ＬＢＡ和０．６ｍｇ／Ｌ４ＰＵ－３０能促进原球茎的分化．活性炭对防止褐化,促进根系生长是有用的     

风信子外植体植株再生系统的研究

风信子叶片及鳞片直接诱导下定芽的培养基为ＭＳ附加６－ＢＡ２．５ｍｇ／Ｌ、ＮＡＡ２．０ｍｇ／Ｌ、ＩＡＡ０．５ｍｇ／Ｌ和ＭＳ附加６－ＢＡ２．５ｍｇ／Ｌ、ＮＡＡ２．５ｍｇ／Ｌ。不定芽发育成小鳞茎的培养基为ＭＳ附加ＧＡ０．２ｍｇ／Ｌ、ＩＡＡ０．５ｍｇ／Ｌ。鳞茎移栽成活率为９０％,从而建立了风信子植株再生系统。     

甘蓝型油菜萝卜质不育系恢复材料Ad—6（F4）测交二代恢？…

油菜萝卜胞质不育系恢复材料Ａｄ－６（Ｆ４）测交二代恢复株ＴＣＦ２,在ＭＳ附加５ｍｇ／Ｌ ６－ＢＡ＋０．５ｍｇ／Ｌ ＮＡＡ,３ｍｇ／Ｌ,６－ＢＡ＋０．２ｍｇ／Ｌ ＮＡＡ,３ｍｇ／Ｌ ６－ＢＡ｜０．３ｍｇ／Ｌ ＮＡＡ＋６００ｍｇ／Ｌ水解５ｍｇ／Ｌ－６－ＢＡ＋０．３ｍｇ／Ｌ ＮＡＡ＋５ｍｇ／Ｌ ＡｇＮＯ３对ＴＣＦ２诱导丛生芽有较好的效果。     

播娘蒿子叶及下胚轴诱导再生植株的研究

用揪娘嵩种子,在附加６－ＢＡ０．５～１．０ｍｇ／Ｌ＋ＮＡＡ０．１ｍｇ／Ｌ的ＭＳ培养基上获得无菌苗,幼苗的下胚轴在含６－ＢＡ０．１ｍｇ／Ｌ＋ＮＡＡ０．５ｍｇ／Ｌ的ＭＳ培养基上的出愈情况最佳,将来自下胚轴的愈伤组织培养了含有６－ＢＡ２．０ｍｇ／Ｌ＋ＮＡＡ０．２ｍｇ／Ｌ的ＭＳ培养基上分化出的丛生芽状态最好,最佳生根培养基为１／２ＭＳ＋ＩＢＡ０．５ｍｇ／Ｌ＋ＮＡＡ０．０５ｍｇ／Ｌ。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with