白头叶猴对夜宿石洞的选择

白头叶猴（ＰｒｅｓｂｙｔｉｓＬｅｕｃｏｃｅｐｈａｌｕｓ）栖息在广西南部的岩溶地形，夜里栖息在石洞里。白头叶猴选择夜宿石洞考虑的因素主要是安全和利于寻找食物等；出洞和入洞行为均在猴王的指挥下完成。     

黑叶猴繁殖小群的管理

黑叶猴（Ｐｒｅｓｂｙｔｉｓｆｒａｎｃｏｉｓｉ）属我国Ⅰ类保护动物,在动物园灵长目动物展出中占有独特位置。它代表了叶猴类动物的饲养方式。繁殖管理好黑叶猴,是物种保存计划中的一个重要内容。我们通过２０多年的实践,不断完善繁殖种群管理措施,使第三代黑叶猴参...     

亚洲叶猴属（Presbytis）的颅骨研究

本研究测量了亚洲叶猴８个种成年颅骨１１项变量。通过童因子方差分析、多元统计分析包括差判别分析和由判别分析筛选的变量所组成的星状图等表明,亚洲叶猴能够明显地分成４个亚属;Ｋａｓｉ与Ｐｒｅｓｂｙｔｉｓ有更密切的关系。提出了不同于前人的线系分支图。     

带有PreS的重组乙肝表面抗原在毕赤酵母中的表达

带有ＰｒｅＳ区的乙肝表面抗原（ＨＢｓＡｇ）有望成为新一代更高效的乙肝疫苗。利用毕赤属酵母（Ｐｉｃｈｉａ ｐａｓｔｏｒｉｓ）表达系统,表达了带有ＰｒｅＳ区免疫决定簇的理组乙肝表面抗原Ｓ１Ｓ、ＳＳ１和Ｓ２Ｓ。对表达产物的性质鉴定表明,产物可以形成２具有相应的Ｓ、ＰｒｅＳ１或ＰｒｅＳ２抗原性的颗粒,表达水平高于啤酒酵母（Ｓａｃｃｈａｒｏｍｙｃｅｓ ｃｅｒｅｖｉｓｉａｅ）表达系统。     

西藏林芝真蚋亚属三新种（双翅目：蚋科）

本文记述西藏林芝真蚋亚属Ｅｕｓｉｍｕｌｉｕｍ三种：凸端真蚋Ｓｉｍｕｌｉｕｍ（Ｅｕｓｉｍｕｌｉｕｍ）ｃｏｎｃａｖｕｓｔｙｌｕｍｓｐ．ｎｏｖ．、林芝真蚋Ｓｉｍｕｌｉｕｍ（Ｅｕｓｉｍｕｌｉｕｍ）ｌｉｎｇｚｉｅｎｓｅｓｐ．ｎｏｖ．、裂缘真蚋Ｓｉｍｕｌｉｕｍ（Ｅｕｓｉｍｕｌｉｕｍ）ｓｃｈｉｚｏｌｏｍｕｎｓｐ．ｎｏｖ 。     

中国瘿蚊金小蜂属研究(膜翅目:金小蜂科)

研究了中国金小蜂科、金小蜂亚科的瘿蚊金小蜂属Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ Ｓｚｅｌｅｎｙｉ,１９４１,重新描述了中国分布的２个种：斑腹瘿蚊金小蜂Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ ｍｉｒｉｆｉｃｕｓ（Ｇｉｒａｕｌｔ）及斑腹金小蜂Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ ｏｒｙｚａｅ （Ｓｕｂｂａ Ｒａｏ）,编制了中国瘿蚊金小峰属分种检索表。其中,斑腹瘿蚊金小蜂Ｐｒｏｐｉｃｒｏｓｃｙｔｕｓ ｍｉｒｉｆｉｃｕｓ （Ｇｉ     

五加属学名考证及其一些新组合

本文考证了五加属学名,支持废弃不合法名称ＡｃａｎｔｈｏｐａｎａｘＭｉｑ．,强调应用合法名称ＥｌｅｕｔｈｅｒｏｃｏｃｃｕｓＭａｘｉｍ,在此基础上,将Ａｃａｎｔｌｈｏｐａｎａｘ属名下２种及１变种并入Ｅｌｅｕｔｈｅｒｏｃｏｃｃｕｓ属名,并对Ｅｌｅｕｔｈｅｒｏｃｏｃｃｕｓ属的４个异名作了订正。     

广东滩涂经济鱼类寄生吸虫──Ⅲ、单孔科、单脏科和八睾科吸虫的研究(复殖目)

本文对广东滩涂经济鱼类寄生复殖吸虫中的单孔科ＨａｐｌｏｐｏｒｉｄａｅＮｉｃｏｌｌ,１９１４,单胜科ＨａｐｌｏｓｐｌａｎｃｈｎｉｄａｅＰｏｃｈｅ,１９２６和八睾科ＯｃｔｏｔｅｓｔｉｄａｅＹａｍａｇｕｔｉ,１９７１吸虫进行研究,其中长尾亚科Ｅｌｏｎａｉｎｕｒｉｎａｅ和鲻长尾吸虫Ｅｌｏｎｇｉｎｕｒｕｓｍｕｕｇｉｌｕｓ分别作为单孔科的新亚科和新属新种;雄囊新单脏吸虫Ｎｅｏｈａｐｌｏｓｐｌａｎｃｈｎｕｓｃｉｒｒｕｓａｃｉ作为单脏科的新属新种;天竺鲷八睾吸虫Ｏｃｔｏｔｅｓｔｉｓａｐｏｇｏｎｉ作为八睾科、八睾吸虫属Ｏｃｔｏｔｅｓｔｉｓ（Ｗａｎｇ,１９６３）Ｙａｍａｇｕｔｉ,１９５１的新种。     

乳酸乳酸球菌基因表达调控研究进展

乳酸乳酸球菌基因表达调控研究进展还连栋（中国科学院微生物研究所,北京１０００８０）乳酸球菌属（Ｌａｃｔｏｃｏｃｃｕｓ）包括５个种,其中乳酸乳酸球菌（Ｌａｃｔｏｃｏｃｃｕｓｌａｃｔｉｓ）是最典型的一个种。乳酸乳酸球菌以前被称之为乳酸菌或Ｎ群链球菌（Ｓｔ...     

THREE NEW SPECIES OF GENUS Stephanitis FROM CHINA (Hemiptera: Heteroptera: Tingidae)

本文报道采自中国西部的冠网蝽属（ＳｔｅｐｈａｎｉｔｉｓＳｔａｌ）３新种：祁连冠网蝽ＳｔｅｐｈａｎｉｔｉｓｑｉｌｉａｎｅｎｓｉｓＢｕｓｐ．ｎｏｖ．,采自甘肃省天祝县乌鞘岭;萧氏冠网蝽ＳｔｅｐｈａｎｉｔｉｓｈｓｉａｏｉＢｕｓｐ．ｎｏｖ．,采自四川省小金县和雅安县,曾被错误鉴定为“Ｓｔｅｐｈａｎｉｔｉｓｆａｓｃｉ－ｉｃａ－ｒｉｎａＴａｋｅｙａ”（萧采瑜等,１９８１）;狭冠网蝽ＳｔｅｐｈｎｉｔｉｓａｎａｇｕｓｔａｔａＢｕｓｐ．ｎｏｖ．采自甘肃省武都县和武威县。模式标本均保存在南开大学生物系昆虫标本室。     

Curcuminoids as inhibitors of thioredoxin reductase: A receptor based pharmacophore study with distance mapping of the active site

Curcumin is the yellow pigment of turmeric that interacts irreversibly forming an adduct with thioredoxin reductase (TrxR), an enzyme responsible for redox control of cell and defence against oxidative stress. Docking at both the active sites of TrxR was performed to compare the potency of three naturally occurring curcuminoids, namely curcumin, demethoxy curcumin and bis-demethoxy curcumin. Results show that active sites of TrxR occur at the junction of E and F chains. Volume and area of both cavities is predicted. It has been concluded by distance mapping of the most active conformations that Se atom of catalytic residue SeCYS498, is at a distance of 3.56 from C13 of demethoxy curcumin at the E chain active site, whereas C13 carbon atom forms adduct with Se atom of SeCys 498. We report that at least one methoxy group in curcuminoids is necessary for interation with catalytic residues of thioredoxin. Pharmacophore of both active sites of the TrxR receptor for curcumin and demethoxy curcumin molecules has been drawn and proposed for design and synthesis of most probable potent antiproliferative synthetic drugs.     

A Unique Protease Cleavage Site Predicted in the Spike Protein of the Novel Pneumonia Coronavirus (2019-nCoV) Potentially Related to Viral Transmissibility

正Dear Editor,In December 2019, a novel human coronavirus caused an epidemic of severe pneumonia(Coronavirus Disease 2019,COVID-19) in Wuhan, Hubei, China(Wu et al. 2020; Zhu et al. 2020). So far, this virus has spread to all areas of China and even to other countries. The epidemic has caused 67,102 confirmed infections with 1526 fatal cases     

Comparative morphology of the carpel in the Liliaceae: Hewardieae, Petrosavieae, and Tricyrteae

The young pistils in the melanthioid tribes, Hewardieae, Petrosavieae and Tricyrteae, are uniformly tricarpellate and syncarpous. They lack raphide idioblasts. All are multiovulate, with bitegmic ovules. The Petrosavieae are marked by the presence of septal glands and incomplete syncarpy. Tepals and stamens adhere to the ovary in the Hewardieae and the Petrosavieae but not in the Tricyrteae. Two vascular bundles occur in the stamens of the Hewartlieae and Tricyrtis latifolia. Ventral bundles in the upper part of the ovary of the Hewardieae are continuous with compound septal bundles and placental bundles in the lower part. Putative ventral bundles occur in the alternate position in the Tricyrteae and putative placental bundles in the opposite. position in the Petrosavieae. The dichtomously branched stigma in each carpel of the Tricyrteae is supplied by a bifurcated dorsal bundle.     

Entwicklungsgeschichte und Ultrastruktur von Pollenkitt und Exine bei nahe verwandten entomophilen und anemophilen Angiospermensippen derAlismataceae,Liliaceae, Juncaceae,Cyperaceae, Poaceae undAraceae

Some closely related members of the monocotyledonous familiesAlismataceae, Liliaceae, Juncaceae, Cyperaceae, Poaceae andAraceae with variable modes of pollination (insect- and wind-pollination) were studied in relation to the ultrastructure of pollenkitt and exine (amount, consistency and distribution of pollenkitt on the surface of pollen grains). The character syndromes of pollen cementing in entomophilous, anemophilous and intermediate (ambophilous or amphiphilous) monocotyledons are the same in principal as in dicotyledons. Comparing present with former results one can summarize: 1) The pollenkitt is always produced in the same manner by the anther tapetum in all angiosperm sub-classes. 2) The variable stickiness of entomophilous and anemophilous pollen always depends on the particular distribution and consistency of the pollenkitt, but not its amount on the pollen surface. 3) The mostly dry and powdery pollen of anemophilous plants always contains a variable amount of inactive pollenkitt in its exine cavities. 4) A step-by step change of the pollen cementing syndrome can be observed from entomophily towards anemophily. 5) From the omnipresence of pollenkitt in all wind-pollinated angiosperms studied one can conclude that the ancestors of anemophilous angiosperms probably have been zoophilous (i.e. entomophilous) throughout.

     

Identification and Characterization of the First Equine Parainfluenza Virus 5

正Dear Editor,Parainfluenza virus 5 (PIV5), known as canine parainfluenza virus in the veterinary field, is a negative-sense,nonsegmented, single-stranded RNA virus belonging to the Paramyxoviridae family (Chen 2018). The virus was first reported in primary monkey kidney cells in 1954 (Hsiung1972), then it has been frequently discovered in various