金色蝗属一新种（直翅目：蝗总科）

本文记述在吉林省长白山,黑龙江省镜泊湖地区采到蝗虫－新种──长白山金色蝗Ｃｈｒｙｓａｃｒｉｓｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ,并附有特征图。     

金色蝗属一新种：（直翅目：蝗总科）

本文记述在吉林省长白山,黑龙江省镜泊湖地区采到蝗虫一新种－－长白山金色蝗Ｃｈｒｙｓａｃｒｉｓ ｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,并附有特征图。     

长白山珍稀植物－草苁蓉

长白山珍稀植物－草苁蓉于英赵淑春修荆昌（吉林农业大学野植教研室,长春１３０１１８）（吉林省园艺特产管理站）长白山珍稀野生植物草苁蓉（ＢｏｓｃｈｎｉａｋｉａｒｏｓｓｉｃａＦｅｄｔｓｃｈｅｔＦｌｅｒｏｖ）,系列当科（Ｏｒｏｂａｎ－ｃｈａｃｅａｅ）植物,俗...     

中国鳞Yao属一新种（弹尾目：鳞Yao科）

记述采自中国长白山的鳞Ｙａｏ属Ｔｏｍｏｃｅｒｕｓ １新种,长白山鳞Ｙａｏ Ｔ．ｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓ,ｓｐ．ｎｏｖ．。模式标本保存于北京自然博物馆。     

中国鳞属一新种(弹尾目:鳞科)

记述采自中国长白山的鳞虫兆属 Ｔｏｍ ｏｃｅｒｕｓ １新种：长白山鳞虫兆 Ｔ． ｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓ, ｓｐ． ｎｏｖ．。模式标本保存于北京自然博物馆。     

应用典汇聚地应分析探讨长白山金发藓科植物的生态位分化

应用对应分析（Ｃａｎｏｎｉｃａｌ Ｃｏｒｒｅｓｐｏｎｄｅｎｃｅ Ａｎａｌｙｓｉｓ,ＣＣＡ）对长白山主要生态系统３０个样点中的１３种金发藓科植物分布与环境因子间的关系进行了研究。发现在长白山地区,金发藓科植物在拔同度、土壤含砂量、含水量、酸度、光照条件等资源维上存在明显的生态分化现象。１３种金发藓科植物中,球蒴金发藓（Ｐｏｌｙｔｒｉｃｈｕｍ ｓｐｈａｅｒｏｔｈｅｃｉｕｍ（Ｂｅｓｃｈ．）Ｃ．Ｍｕｌｌ、     

长白山站的研究数据库管理系统

长白山站的研究数据库管理系统翟永华,赵士洞（中国科学院沈阳应用生态研究所１１００１５）Ｄａｔｅ－ＢａｓｅＭａｎａｇｅｍｅｎｔＳｙｓｔｅｍｉｎＣｈａｎｇｂａｉｓｈａｎＦｏｒｅｓｔＥｃｏｓｙｓｔｅｍＲｅｓｅａｒｃｈＳｔａｔｉｏｎ．￥ＺｈａｉＹｏｎｇｈｕａ...     

三种蝮蛇抗栓酶对闭塞性血管疾病血流变学及血小板作用的比较

对蛇岛、浙江、长白山三种不同产地的蝮蛇抗栓酶（ＡｈｙｌｓａｎｔｉｎｆａｒｃｔａｓｅＥｎｚｙｍｅＡＥ）对闭塞性血管疾病患者血流变学变化影响及血小板作用的差异进行了比较。结果表明：三种ＡＥ均有较明显降低全血粘度、血浆粘度及血球压积的作用,而三种ＡＥ间的作用无显著性差异;降低血沉的作用以长白山ＡＥ较佳;祛纤作用以长白山ＡＥ及蛇岛ＡＥ为佳;三种ＡＥ均有明显的降低血小板作用。认为对血流变学及血小板的作用,长白山ＡＥ优于蛇岛ＡＥ,蛇岛ＡＥ优于浙江ＡＥ,而其中长白山ＡＥ的祛纤及蛇岛ＡＥ降低血小板作用最强     

长白山北坡椴树阔叶红松林群落特征

长白山北坡椴树阔叶红松林群落特征孙中伟,赵士洞（中国科学院沈阳应用生态研究所１１００１５）ＣｏｍｍｕｎｉｔｙＦｅａｔｕｒｅｓｏｆＴｉｌｉａ－ＫｏｒｅａｎＰｉｎｅＦｏｒｅｓｔｏｎＮｏｒｔｈｅｒｎＳｌｏｐｅｏｆＣｈａｎｇｂａｉＭｏｕｎｔａｉｎｓ￥。Ｓｕｎ...     

东北地区蝗虫－新属及三新种（直翅目：蝗总科）

本文记述了采自东北地区蝗虫的一新属,拟蹦蝗属Ｓｉｎｏｐｏｄｉｓｍｏｉｄｅｓｇｅｎ．ｎｏｖ．及三新种,千山拟蹦蝗Ｓｉｎｏｐｏｄｉｓｍｏｉｄｅｓｑｉａｎｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ．、草绿拟蹦蝗Ｓｉｎｏｐｏｄｉｓｍｏｉｄｅｓｐｒａｓｉｎａｓｐ．ｎｏｖ．和长白山玛蝗Ｍｉｒａｍｅｌｌａｃｈａｎｇｂａｉｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ．。模式标本保存于陕西师范大学动物研究所。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

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     

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.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.