血友病患者血清中淋巴腺病病毒/人T细胞Ⅲ型病毒抗体检测

对浙江省1982～1984年注射了美国产浓缩Ⅶ因子制剂的18例血友病患者,用酶联免疫吸附法(ELTSA)检测了血清中淋巴腺病病毒/人T细胞Ⅲ型病毒(LAV/HTLV-Ⅲ)抗体,发现4例阳性,并经免疫荧光试验和Western印迹法证实。2例应用了国产浓缩Ⅷ因子者抗体阴性。一例从美国来华旅游死于艾滋病者,LAV/HTLV-Ⅲ抗体阳性。本研究证明,LAV/HTLVⅢ病毒巳通过美国生产的Ⅷ因子制剂传入中国。     

溴氰菊酯对鼠脑蛋白质磷酸化作用的影响

以小鼠大脑碎片与[γ-~(32)P]ATP一起保温,观察到溴氰菊酯对蛋白1—3磷酸化的刺激作用和对4、5磷酸化的抑制作用,表明溴氰菊酯对大脑蛋白质磷酸化产生了影响。从鼠脑分离了C、D、S三个组分,分别进行的蛋白质磷酸化试验结果表明,C、D组分可能是重要的磷酸化部位。 蛋白1、2、3的磷酸化明显地受到溴氰菊酯的刺激,这三个蛋白质可能是“蛋白Ⅲb”的几种形式。溴氰菊酯对“蛋白Ⅲb”磷酸化的刺激,可能会影响神经末梢的神经激素释放,从而影响到与其相关的某些神经功能。     

棉属栽培种与野生种杂交的不亲和性

本文研究了棉属栽培种与野生种杂交的不亲和性,试验材料涉及5个染色体组,包括2个栽培种(陆地棉和中棉)和5个野生种(戴维逊氏棉、瑟伯氏棉、三裂棉、阿拉伯棉和比克氏棉)。以陆地棉作母本,异己花粉管在花柱中生长缓慢,有花粉管胚珠低于10%,陆地棉×戴维逊氏棉杂种胚在子叶期坏死。以中棉作母本,不亲和性主要表现在受精后的胚胎发育过程中。     

城市中的伴人植物

伴人植物分布于城市中的许多地方,常被视为杂草而清除。本文论述了城市伴人植物的特点、分布,及其在城市环境保护及美化中的作用,最后列出了北方城市中一些常见伴人植物的名称。     

菜粉蝶颗粒体病毒对哺乳动物的实验感染

The experimental infection of mammals (such as mouse, golden hamster and nude mouse) was conducted with Pieris rapae Granulosis Virus (PrGV) of baculoviridae of insect virus by way of peritonal and intravenous injection, per os and inhalation. 7-50 days after injection, target insects were reinoculated with the visceral extracts of infected mammals and killed by 5-100%, displaying typical symptom infected by granulosis virus. GV and its latticed structure of inclusion body were found in the ultrathin section of spleen which took out from infected nude mouse via peritoneal injection under electronmicroscope.     

Assays for the effects of volatile compounds from artificially damaged cotyledons of subterranean clover on the redlegged earth mite, Halotydeus destructor

The effects on the redlegged earth mite (Halotydeus destructor) (Acarina: Penthaleidae) of volatile compounds released from artificially damaged cotyledons of subterranean clover (Trifolium subterraneum L.), a host plant, were investigated with different assays. Mites were repelled by the volatile compounds in flask tube and in trimmed cotyledon disc tests. No differences could be shown between different tissue amounts and between resistant and susceptible varieties. When a membrane sachet was used containing either 2-(E)-hexenal, a compound produced by damaged subclover cotyledons, or the total volatile compounds collected from damaged cotyledons of Dalkeith (susceptible) admixed with 1% glucose, mites gathered to low but were deterred by high concentrations of the compounds. Volatile compounds collected from the resistant variety DGI007 were more deterrent than those from the susceptible Dalkeith. Membrane sachets containing 30 p.p.m. of 2-(E)-hexenal and 1% glucose were less preferred than cotyledons of Dalkeith (susceptible) but were not different from DGI007 (resistant). By increasing the glucose concentration to 5%, the membrane sachets with 30 p.p.m. of 2-(E)-hexenal were preferred to cotyledons of either variety. The results indicate that the membrane feeding technique provides a sensitive way of assaying volatile compounds from damaged subclover cotyledons against the mite.     

藏酋猴的分类与分布

本文基于外部形态,毛色,头骨特征和地理分布对藏酋猴进行了分类整理,认为藏酋猴在不同地理区域之间的差异已达到了亚种水平,可分为４个亚种（包括两新亚种）：Ｍ．ｔｈｉｂｅｔａｎａｔｈｉｂｅｔｎａ,Ｍ．ｔｈｉｂｅｔａｎａｐｕｌｌｕｓ．Ｍ．ｔｈｉｂｅｔａｎａｈｕａｎｇｓｈａｎｅｎｓｉｓｓｕｂｓｐ．ｎｏｖ．和Ｍ．ｔｈｉｂｅｔａｎａｇｕｉｚｈｏｕｅｎｓｉｓｓｕｂｓｐ．ｎｏｖ。     

水稻伸长生长的数学模型

水稻地上部诸器官的伸长生长,可以分为3个阶段和两个过渡期．器官在前期的凹型曲线生长为加速生长（定为第1阶段）,中期的直线生长为等速生长（第2阶段）,后期的凸型曲线生长为减速生长（第3阶段）;每两个阶段临界处均存在特殊的生长过程,前面的定为第1过渡期,做变加速生长,后面的定为第2过渡期,做变减速生长.组成器官的各个细胞的伸长生长,也可以分为前期凹型曲线阶段、中期的直线阶段以及这两个阶段临界处的过渡期.运用类比原理推断;细胞在凹型曲线阶段,其原生质的膨压大于壁压,而且这两个压差始终维持稳定,这就使细胞做等加速生长;细胞经过过渡期的变加速生长过渡到直线生长阶段,在这个阶段中,膨压大小与壁压相等,这就使细胞以过渡期最末的生长速度做等速生长;最后壁压大于膨压,而且这两个相差压会阻止细胞的“惯性”生长直至停止生长,其结果产生减速生长．     

可乐茄叶肉原生质体培养再生植株

本文报道茄属果树可乐茄（ＳｏｌａｎｕｍｑｕｉｔｏｅｎｓｅＬａｍ．）叶肉原生质体的分离、培养及植株再生。幼嫩叶片原生质体经酶游离、纯化后,以１×１０４个／ｍｌ密度培养于稍加改良Ｋ８ｐ（附加２,４－Ｄ０．５ｍｇＬ（－１）、ＮＡＡ１．０ｍｇＬ（－１）和ＢＡ０．５ｍｇＬ（－１））的培养基中,三天后开始分裂,一周分裂３—４次。一个月形成小细胞团,植板率为０．１—０．２％,小细胞团转培养于ＭＳ＋２,４－Ｄ０．５ｍｇＬ（－１）上增殖后进行分化。原生质体来源愈伤组织在ＩＡＡ（０．１—１．０ｍｇＬ（－１））与ＢＡ或ＺＴ组合的培养基中能诱导器官发生,芽分化率最高可达４２．９％;但ＩＡＡ、ＢＡ、ＺＴ三者一起使用未见任何器官分化。小芽在ＭＳ＋ＩＡＡ０．２ｍｇＬ（－１）中生根成植株。可乐茄叶肉原生质体的植株再生,可应用于育种和茄属植物遗传工程研究。