中国孤雌生殖卤虫中多倍体同工酶基因的表达

采用聚丙烯酰胺凝胶垂直板电泳地,对中国孤雌生殖卤虫１０个品系的２６个多倍体单个体克隆的９种同工酶的基因表达情况、种群遗传结构以及进化关系进行了研究。在研究的９种同工酶中ＬＤＨ、６ＰＧＤＨ、ＧＤＨ为单态酶、ＭＤＨ、ＰＯＤ、ＥＳＴ、ＡＣＰ、ＡＬＰ和α－ＡＭＹ为多态酶。ＭＤＨ、ＰＯＤ重复基因不表达。为功能二倍体,ＥＳＴ、ＡＣＰ、ＡＬＰ和α－ＡＭＹ重复基因表达。,以遗传相似系数所做的聚类分析结果可以明显表     

社鼠组织器官同工酶的研究

用聚丙烯酰胺凝胶等电聚焦电泳方法,分析了社鼠的肝、肾、心肌、骨骼肌、肺、脾和脑等多种组织器官的ＬＤＨ、ＡＤＨ、ＥＳＴ、和ＳＯＤ４种同工酶,对各组织器官的酶带数目和分布,以及酶活性进行了比较研究。结果表明,社鼠的ＬＤＨ同工酶、ＡＤＨ同工酶和ＥＳＴ同工酶具有比较明显的组织特异性,而ＳＯＤ同工酶的组织特异性较低。肺和脾除ＥＳＴ同工酶活性较高外,脑除ＬＤＨ同工酶活性较高外,其它３种同工酶的活性均较低;而肝和肾中４种同工酶的活性普遍很高。心肌和骨骼肌因氧张力不同而使ＬＤＨ同工酶酶谱存在明显差异,但其它３种同工酶酶谱却非常相似。同工酶的组织特异性与各组织器官所执行的生理功能是相一致的     

青草鲢鳙四种鱼同工酶的比较研究

采用聚丙烯酰氨垂直板状连续电泳方法,对青草鲢鳙６种组织、１０种同工酶和蛋白质进行了电泳研究,并结合作者以前做的工作,对所研究的共２１种同工酶和蛋白质在４种鱼中的组织分布,位点表达及活性作了分析和总结。结果表明：４种鱼同工酶的种内组织分布差异大于种间差异;ＡＤＨ、ＡＭＹ、ＣＡＴ、ＥＳＴ、ＭＥ、ＰＯＸ、ＳＤＨ存在不同程度的种间差异,可作为种类的遗传标记;４种鱼ＭＤＨ、ＧＯＴ、ＡＬＰ、ＡＯ、ＳＯＤ同工酶谱非常相似,只在活性上略有差异;ＬＤＨ、Ｇ６ＰＤＨ和ＣＯＸ的酶谱特征可作为青草和鲢鳙两个亚科的鉴别标记。     

STUDIES ON THE PATTERN OF MEGASPOROGENESIS AND MICROTUBULAR CYTOSKELETON CHANGES IN CYMBIDIUM SINENSE

ＳＴＵＤＩＥＳＯＮＴＨＥＰＡＴＴＥＲＮＯＦＭＥＧＡＳＰＯＲＯＧＥＮＥＳＩＳＡＮＤＭＩＣＲＯＴＵＢＵＬＡＲＣＹＴＯＳＫＥＬＥＴＯＮＣＨＡＮＧＥＳＩＮＣＹＭＢＩＤＩＵＭＳＩＮＥＮＳＥ￥Ｓ．Ｙ．ＺｅｅＸ．Ｌ．Ｙｅ（１ＢｏｔａｎｙＤｅｐａｒｔｍｅｎｔ,Ｕｎｉ...     

拟南芥：植物分子生物学研究的模式物种

拟南芥：植物分子生物学研究的模式物种陈璋（福建省花卉研究中心福州３５０００２）ＡＲＡＢＩＤＯＰＳＩＳＴＨＡＬＩＡＮＡＡＳＡＭＯＤＥＬＳＰＥＣＩＥＳＦＯＲＰＬＡＮＴＭＯＬＥＣＵＬＡＲＢＩＯＬＯＧＹＳＴＵＤＩＥＳ￥ＣｈｅｎＺｈａｎｇ（ＦｕｊｉａｎＰｒｏｕ...     

白头叶猴的性比与社会结构

白头叶猴的性比与社会结构ＳＴＵＤＹＯＮＳＥＸＲＡＴＩＯＡＮＤＳＯＣＩＯ－ＳＴＲＵＣＴＵＲＥＯＦＦＷＨＩＴＥ－ＨＥＡＤＥＤＬＥＡＦＭＯＮＫＥＹＫｅｙｗｏｒｄｓＷｈｉｔｅ－ｈｅａｄｅｄｌｅａｆｍｏｎｋｅｙ;Ｓｅｘｒａｔｉｏ;Ｓｏｃｉｏ－ｓｔｒｕｃｔｕｒｅ...     

乌鳢胃肠内分泌细胞的免疫组织化学研究

乌鳢胃肠内分泌细胞的免疫组织化学研究夏立群,王庆堂（同济医科大学组织胚胎学教研室武汉４３００３０）关键词乌鳢,内分泌细胞,免疫组织化学ＰＡＰ方法ＩＭＭＵＮＯＣＹＴＯＣＨＥＭＩＣＡＬＳＴＵＤＹＯＦＴＨＥＥＮＤＯＣＲＩＮＥＣＥＬＬＳＩＮＴＨＥＧＡＳＴＲＯ...     

小鼠孤雌胚胎干细胞集落的建立

ＥＳＴＡＢＬＩＳＨＭＥＮＴＯＦＳＴＥＭＣＥＬＬＣＯＬＯＮＩＥＳＦＲＯＭＰＡＲＴＨＥＮＯＧＥＮＥＴＩＣＡＬＬＹＤＥＲＩＶＥＤＢＬＡＳＴＯＣＹＳＴＳＯＦＭＯＵＳＥ小鼠孤雌胚胎干细胞集落的建立ＫｅｙｗｏｒｄｓＭｏｕｓｅ,Ｐａｒｔｈｅｎｏｇｅｎｅｔｉｃｅｍ...     

不同代龄SME—1细胞和南方鲶上皮组织同工酶的初步分析

以不同代龄的ＳＭＥ－１细胞和南方鲶为材料,用聚丙酰胺圆盘电泳对ＬＤＨ、ＭＤＨ 、α－ＥＳＴ、β－ＥＳＴ和ＳＯＤ同工酶进行了分析,２月龄和１２月龄个体上皮细胞中仅α－ＥＳＴ和ＭＤＨ有明显差异,后者酶活力较高。     

荔枝胚胎发育的研究

荔枝胚胎发育的研究邱燕平,张展薇,丘荣熙（广东省农科院果树所,广州５１０６５０）（广东教育学院,广州５１０３０３）ＳＴＵＤＹＯＮＥＭＢＲＹＯＡＮＤＥＮＤＯＳＰＥＲＭＤＥＶＥＬＯＰＭＥＮＴＯＦＬＩＴＣＨＩＣＨＩＮＥＮＳＩＳＳＯＮＮ￥ＱｉｕＹａｎ－ｐｉｎ...     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.     

杆状病毒出芽病毒粒子膜融合蛋白的研究进展

杆状病毒是一类感染节肢动物的病原微生物,其基因组为双链环状DNA,大小为80～180kb.     

Inception of the Modern Public Health System in China and Perspectives for Effective Control of Emerging Infectious Diseases: In Commemoration of the 140th Anniversary of the Birth of the Plague Fighter Dr. Wu Lien-Teh

In this article, we systematically review Dr. Wu Lien-Teh's academic achievements and outstanding contributions in the prevention and control of the plague epidemic in northeast China and introduce the development of the earliest public health epidemic prevention system in China in order to commemorate the 140th anniversary of Dr. Wu Lien-Teh's birth. We hope that this article will provide insights into the effective prevention and control of emerging infectious diseases as well as the current worldwide pandemic of COVID-19, facilitating the improvement and development of public health systems in China and around the globe.