In order to explore the method of new stock micropropagation , the micropropagated plantlets of malus pruniolia var . ringo were used as material to culture in designed sugar - free culture box with environmental control system for studying their rooting ability , photosynthesis and root morphogenesis , and compared with those cultured in sugar - containing culture system 摘要为了探索新的砧木快速繁殖的方法,以圆叶海棠离体新梢为供试材料,采用自行设计的无糖培养箱和环境控制系统,进行无糖培养生根研究,比较无糖培养与有糖培养海棠离体新梢光合指标和根系形态指标之间的差异。
The results showed that the levels of endogenous polyamines in embryogenic calli were higher than those in non - embryogenic calli ; the changes of endogenous polyamines in the process of somatic embryogenesis approximately showed an " m " curve during embryogenic callus and globular embryoids ; the content of polyamines was the 2 turning - point stages in the changes of endogenous polyamines in somatic embryogenesis ; the changes of endogenous polyamines were earlier than those of morphogenesis 结果表明:龙眼胚性愈伤组织中内源多胺含量比非胚性愈伤组织高;体胚发生过程中内源多胺含量变化趋势大致呈" m "状,在胚性愈伤组织和球形胚阶段转折;内源多胺含量的变化先于形态学的变化。
Human bone morphogenetic protein 3 is a member of tgf - b superfamily . lt can induce the differentiation of cartilage and bone tissue in mesenchymal cell . and is important to bone self - repairment and bone development during embryo morphogenesis . in addition , some other biological activities of hbmp - 3 have also been found . such as inducing development of embryo and stimulating differentiation of neural and blood cells . therefore , there is a great prospect in the use of hbmp - 3 . there is trace content of hbmp - 3 in human body . it has been expressed in the expression system of eukaryotes and prokaryotes respectively , but its application is restricted because of defects in the process and modification after translation in prokaryotic cells and higher costs and lower yields existed in eukaryotic expression system 人骨形成蛋白3 ( hbmp - 3 )属于tgf -超家族的一员,可以诱导间充质细胞分化为软骨和骨,在胚胎时期骨骼发育和骨再生修复中起着重要的作用,而且对胚胎发育过程中中胚层的诱导和分化、造血组织的发育以及神经系统的发育和修复等都起着重要作用,因而hbmp - 3有广阔的市场前景。它在人体内含量极微,尽管研究人员已经在原核细胞和真核细胞表达系统中分别进行了表达,但是由于原核表达系统缺乏翻译后的加工修饰,真核表达系统存在成本高、产量低等特点,限制了其在临床上的应用。
The t1 - weighted and ^ - weighted magnetic resonance imaging ( mri ) have been used to study the morphogenesis of chicken embryo and other contains in the egg during the earlier hatching process . t2 values of amniotic fluid , yolk and egg white have been measured by the means of multi slice multi echo ( msme ) sequence . in - vivo " h magnetic resonance spectroscopy ( in - vivo * h mrs ) has been used to analyze the ingredients of amniotic fluid , yolk and egg white 用核磁共振成像( magneticresonanceimaging , mrl )中ti加权、 2加权成像的方法在无损的条件下对鸡胚发育过程中的形态结构变化进行了研究,得到了胚胎及蛋白、蛋黄等在胚胎发育的早期结构变化的图像,并用多片多回波( multislicemultiecho , msme )的方法测定了它们中质子的r2值,为研究胚胎的发育过程提供了有价值的参考。
It is used to probe the relationship between the structure and activity of proteins ; to define the roles of particular proteins and protein assembles in the cell ; to determine the logic and order of molecular events during differentiation and morphogenesis ; to improve the activity of enzyme , antibiotics and so on 引导蛋白质功能进化常用的方法是模拟和加速蛋白质基因自然重组的进程,即在蛋白质的基因中引进随机突变。因此,蛋白质基因体外随机突变的方法影响着引导蛋白质功能进化的效果。
Morphogenesis (from the Greek morphê shape and genesis creation, literally, "beginning of the shape") is the biological process that causes an organism to develop its shape. It is one of three fundamental aspects of developmental biology along with the control of cell growth and cellular differentiation.
morphogenesisとは意味:{名} : 形態形成{けいたい けいせい} morphogenesis meaning: Noun: morphogenesis `morfu'jenisis Differentiation and growth of the structure of an organism (or a part of an organism) Type of: development , growing , growth , maturation...morphogenesis en francais:n. morphogénèse, développement des formes ou des structures caractéristiques d'une espèce vivante (biologie, embryologie)morphogenesis artinya:morfogenesismorphogenesis 뜻:noun, 형태 형성(발생)morphogenesis перевод:1) _биол. морфогенез