欧洲球螋的检疫

北京出入境检验检疫局从美国进境旅客携带的石榴中检出欧洲球螋。了解欧洲球螋的基本特性,能为相关部门对其检疫鉴定提供参考依据。对欧洲球螋的相关文献进行了查阅和整理,详细介绍了欧洲球螋的分类地位、分布、形态特征及近似种等信息,我国出入境检验检疫部门对球螋属的截获情况,讨论了欧洲球螋的检疫意义。认为欧洲球螋在我国无分布且具有一定的入侵风险,口岸应对该虫引起足够的重视。     

云南丝尾螋属一新种(革翅目:丝尾螋科)

记述采自云南省丝尾螋属l新种：六库丝尾螋Diplatys liukuensis,sp．nov．。模式标本保存于浙江自然博物馆。     

黄足肥螋的发生及其对苹果绵蚜的捕食作用

本文对黄足肥螋Euborellia pallipes（Shiraki）的发生及其对苹果绵蚜Eriosoma lanigerum（Hausmann）的捕食作用开展了研究。结果表明：7～9月份是黄足肥螋田间发生高峰期,它对苹果绵蚜E．lanigerum（Hausmann）的功能反应符合HollingⅡ,Na=0．9804N／（1＋0．0108N）,其捕食量随苹果绵蚜密度的增加而增加,日最大捕食量和最佳寻找密度可达46．3头和19．9头。在15～30℃下,黄足肥螋的捕食量随温度的升高而增加,每头成虫在10、15℃、18℃、20℃、25℃和30℃下的取食量分别为3．3头、20．3头、23．8头、25．8头和27．0头。研究表明了黄足肥螋是苹果绵蚜的主要捕食性天敌昆虫之一,应加强保护与利用。     

浙江革翅目昆虫化石的发现(革翅目:姬螋科)

中国姬螋属Sinolabia,新属 属模种:Sinolabia longyouensis gen.et sp.nov. 属征:触角短,多于16节,第1节粗而长,第2—5节短,第2,3,4节之和与节1节等长。足短,无翅,尾铗稍长于最后腹节。 比较:新属的触角第1节和第2、3、4节的比例特殊,和现生的姬螋科各属不同,并且和苏联侏罗纪发现的Semenoviola obliquotruncata Martynov,1925差别显著。因此,本新属的发现对革翅目昆虫的研究提供了新的材料。     

中国聂跳蚜属研究及新种描述（同翅目：斑蚜科）

中国聂跳蚜属研究及新种描述（同翅目：斑蚜科）张万玉,钟铁森,张广学（中国科学院动物研究所北京１０００８０）ＳＵＳＡＮＨＡＬＢＥＲＴ（ＵｎｉｖｅｒｓｉｔｙｏｆＩｄａｈｏ,ＣｏｌｌｅｇｅｏｆＡｇｒｉｃｕｌｔｕｒｅ,Ｕ．Ｓ．Ａ．）聂跳蚜属Ｎ。。。。ｋｙｃｌ...     

四川裸蠓二新种（双翅目：蠓科）

本文描述了１９８１年发现了于四川省的蠓科裸蠓属二新种。分别命名为漫游裸蠓Ａｔｒｉｃｈｏｐｏｇｏｎ（Ａ．）ｐｌａｎｅｔｕｓ（采自泸定县）和四梗裸蠓Ａ．（Ｐｓ．）ｔｅｔｒａｍｉｓｃｈｕｓ（采自南川县）。二新种的模式标本均收藏于北京医学昆虫标本馆。     

圆鸟虱属一新种：食毛目：长角鸟虱科

圆鸟虱属一新种（食毛目：长角鸟虱科）刘思孔（北京自然博物馆,北京１０００５０）关键词食毛目;圆鸟虱属;新种在整理白学礼先生从大石鸡Ａｌｅｃｔ。ｇｒａｅｃａｍａｇｎａ（Ｐｒｚｈｅｖａｌｓｋｉ）上采集的食毛目标本时,发现有２种圆鸟虱（。ｎｄ。）,ｌ种为异...     

铗蠓属一新亚属及其二新种（双翅目：蠓科）

记述发现于我国的铗蠓属Ｆｏｒｃｉｐｏｍｙｉａ１新亚属－－奇蠓亚属Ａｔｏｐｏｍｙｉａ ｓｕｂｇ．ｎｏｖ．及其２新种：奇异铗蠓Ｆ．（Ａｔｏｐｏｍｙｉａ）ａｔｏｐｉａ,ｓｐ．ｎｏｖ．和山地铗蠓Ｆ．（Ａｔｏｐｏｍｙｉａ）ｉｄａｅｕｓ,ｓｐ．ｎｏｖ．。模式标本保存于北京医学昆早标本馆。     

椰心叶甲天敌垫跗螋的生物学研究

垫跗螋Chelisoches morio (Fabricius)是入侵害虫椰心叶甲Brontispa longissima (Gestro)的一种本地天敌.为了了解垫跗螋的生物学习性和控害潜能,本文对垫跗螋的形态特征、生长发育、重要生物学习性以及对椰心叶甲的捕食选择性和捕食量进行了观察研究.垫跗螋雌成虫将产的卵堆积在一起,抱孵在体下,且不时用口器翻动重排卵,受到惊扰时会吃掉卵,甚至初孵的若虫.在室温条件下(20±2)℃,以椰心叶甲2龄幼虫为食料,垫跗螋从卵至成虫的平均发育历期为(107.9±15.2)d;平均每头雌虫产卵量为(138.7±59.5)粒;垫跗螋成虫对椰心叶甲2龄幼虫的日平均捕食量为(6.7±1.1)头.寄主龄期选择性实验表明,垫跗螋成虫和4龄若虫喜欢取食椰心叶甲的2龄幼虫;3龄和2龄若虫喜欢取食椰心叶甲的1龄幼虫.     

中国貂祝蛾属研究及二新种记述(鳞翅目：祝蛾科)

中国貂祝蛾属研究及二新种记述（鳞翅目：祝蛾科）武春生（中国科学院动物研究所北京１０００８０）貂祝蛾属ＡｔｈｙｍｏｒｉｓＭｅｙｒｉｃｋ,１９３５曾一直是瘤祝蛾亚科（Ｔｏｒｏｄｏｒｉｎａｅ）中的一个单型属,分布于我国和日本。其前翅的Ｍ２＋３合并,且靠近共...     

A homozygous female hemophilia A

BACKGROUND:

Hemophilia A (HA), being an X-linked recessive disorder, females are rarely affected, although they can be carriers.

AIMS:

To study the mutation in F8 gene in an extended family with a homozygous female HA.

MATERIALS AND METHODS:

All the seven affected members (six males and one female) were initially screened by Conformation Sensitive Gel Electrophoresis (CSGE) and direct DNA sequencing.

RESULTS:

A homozygous missense mutation c.1315G>A (p.Gly420Ser) was identified in exon 9 of F8 gene in homozygous state in the affected female born of 1° consanguinous marriage and in all the affected male members of the family. Her factor VIII levels was found to be 5.5%, vWF:Ag 120%.

CONCLUSION:

In India, as consanguineous marriages are very common in certain communities (up to 30%), the likelihood of encountering female hemophilia is higher, although this is the first case of HA out of 1600 hemophilia families registered in our Comprehensive Haemophilia Care Center. Genetic diagnosis in such cases is not necessary as all the male children will be affected and daughters obligatory carriers.     

Aminopeptidase A is angiotensinase A

Summary Quantitative histochemical measurements of aminopeptidase A (APA; E.C.3.4.11.7) were done kinetically in the kidney glomeruli of rat and mouse with an instrumental setup consisting of a microdensitometer and a computer-supported morphometric system. The histochemical demonstration of APA was carried out using the simultaneous azo coupling technique (purest-grade Fast Blue B as coupling agent and -l-glutamic acid-4-methoxy-2-naphthylamide as substrate). The methodological studies show that APA activity is calcium-ion-dependent and increases linearly with the thickness of the tissue section (3–12 m) and that the time-course of APA activity as determined by linear regression is linear only for the first 1 to 2 min of the reaction. — Kinetic measurements indicate a 40% decrease in APA activities when -l-glutamic acid-4-methoxy-2-naphthylamide (-l-Glu-MNA) is replaced by -l-aspartic acid-4-methoxy-2-naphthylamide. When -l-Glu-MNA is replaced with l-alanine-4-methoxy-2-naphthylamide, which is a substrate of aminopeptidase M (APM) only very low reaction rates are measurable (about 1.4% of those with -l-Glu-MNA). 100 and 130 mM NaCl in the incubation medium increase APA activities by approximately 16%–17%. — To clarify the functional importance of APA in the kidney, their activities were measured under the influence of angiotensins. The glomerulus was selected as the measuring site, for besides APA it contains no APM or other peptidases that could degrade angiotensins (the glomerular dipeptidyl peptidase IV is not inhibited by angiotensin II). Using the Lineweaver-Burk plot, we determined a K _m of 0.16 mM for the APA in rat glomeruli and 0.14 mM in mouse glomeruli. The V _max in mouse glomeruli is 1.6 times higher than in rat glomeruli. Ang iotensin I, II and III competitively inhibit APA in the rat and mouse glomeruli. — With quantitative histochemical techniques it was possible to show that APA is equivalent to angiotensinase A (splitting off the N-terminal aspartic acid from angiotensin I and II).Supported by the Deutsche Forschungsgemeinschaft (SFB 105)     

A glucoside of urospermal A

The aerial parts of Urospermum picroides afforded, in addition to urospermal A a p-hydroxylphenyl acetate of a glucoside of urospermal A.     

Quadruplexes of human telomere DNA analogs designed to contain G:A:G:A,G:G:A:A,and A:A:A:A tetrads

Replacement of two to four guanines by adenines in the human telomere DNA repeat dG₃(TTAG₃)₃ did not hinder the formation of quadruplexes if the substitutions took place in the terminal tetrad bridged by the diagonal loop of the intramolecular antiparallel three‐tetrad scaffold, as proved by CD and PAGE in both Na⁺ and K⁺ solutions. Thermodynamic data showed that, in Na⁺ solution, the dG₃(TTAG₃)₃ quadruplex was destabilized, the least by the two G:A:G:A tetrads, the most by the G:G:A:A tetrad in which the adenosines replaced syn‐guanosines. In physiological K⁺ solution, the highest destabilization was caused by the 4A tetrad. In K⁺, only the unmodified dG₃(TTAG₃)₃ quadruplex rearranged into a K⁺‐dependent quadruplex form, none of the multiple adenine‐modified structures did so. This may imply biological consequences for nonrepaired A‐for‐G mutations. © 2010 Wiley Periodicals, Inc. Biopolymers 93: 880–886, 2010.     

A monoclonal antibody to ochratoxin A

The production of patulin by P. expansum Link ex Gray growing in apple juice was determined over a range of pH. Patulin was found to be produced in large quantities over a narrow range of pH from 3-2 to 3–8. The biomass produced increased with increasing pH. The changes in pH due to growth of the organism were found to be small.