中国异伊螨属一新种（蜱螨亚纲：犹伊螨科）

记述异伊螨属Alliphis一新种,湟中异伊螨Alliphis huangzhongensis sp.nov.,模式标本采自青海湟中县总寨地区的螂体。     

异伊螨属1新种（蜱螨亚纲：革螨股：犹伊螨科）

记述异伊螨属1新种:短胸异伊螨Alliphis brevisternalis sp,nov.。     

异伊螨属二新种(蜱螨亚纲:犹伊螨科)

本文记述异伊螨属AlliphisHalbert,1923二个新种：玉溪异伊螨Alliphisyuxiensissp．nov．及大异伊螨Alliphismagnussp.nov.,模式标本采自云南省元江县的蜣螂体上,保存于南京大学医学院寄生虫学教研室。     

异伊螨属二新种

本文记述伊螨属ＡｌｌｉｓｐｈｉｓＨａｌｂｅｒｔ,１９２３二个新种;玉溪异伊螨Ａｌｌｉｐｈｉｓ ｙｕｘｉｅｎｉｓｉｓｓｐ,ｎｏｖ。及大异伊螨Ａｌｌｉｐｈｉｓ ｍａｇｕｓ ｓｐ．ｎｏｖ,模式标本采自云南省元江县的蜣螂体上,保存于南京大学医学院寄生虫学教研室。     

犹伊螨亚科二新种(蜱螨亚纲:犹伊螨科)

本文记述了犹伊螨亚科二新种:陕西犹伊螨Eviphis shaanxiensis sp.nov.与中华异伊螨Allphis sinicus sp.nov., 前者采自陕西宁陕县的中华鼢鼠体上,后者采自宁夏中卫、同心、海源三县的蜉金龟体上。     

青海省犹伊螨属一新种(蜱螨亚纲:犹伊螨科)

记述从青海省同德县巴水乡虫虫体受到的犹伊螨属一新种,定名为同德犹伊螨Ｅｖｕｐｈｉｓ ｔｏｎｇｄｅｎｓｉｓ Ｌｉ,Ｙａｎｇ ｅｔ Ｗａｎｇ,ｓｐ．ｎｏｖ．,新种与喜马拉雅犹伊螨Ｅ．ｈｉｍａｌａｙａｅｎｓｉｓ Ｍａ ｅｔ Ｐｕ,１９８１近似,但根据腹板前中部尖刺状骨化脊及背板具３对小刺可与后者相区别。模式标本保存在青海省地方病防治研究所。     

辽宁犹伊螨属一新种：（蜱螨亚纲：犹伊螨科）

本文对独角仙体上的犹伊螨新种——大连犹伊螨Eviphis dalianensis sp.nov.进行了描述,该种与淮南犹伊螨Eviphis huainanensis Wen,1965近似。模式标本采自辽宁大连市,保存于辽宁省卫生防疫站虫媒消杀科。     

中国犹伊螨属一新种及一新纪录（蜱螨亚纲：犹伊螨科）

本文记术二种采自云南省的犹伊螨：刀形犹伊螨Ｅｖｉｐｈｉｓｃｕｌｔｒａｔｅｌｌｕｓ（Ｂｅｒｌｅｓｅ,１９１０）系国内新纪录种,另一为新种尖犹伊螨Ｅｖｉｐｈｉｓａｃｕｔｕｓｓｐ．ｎｏｖ。标本采自海与元山县的螂体上,存于南京大学医学院寄生虫学教研室,文末附有犹伊螨属我国已知１１种的检索表。     

四川省犹伊螨属三新种记述（蜱螨亚纲：犹伊螨科）

本文的三新种为若尔盖犹伊螨Eviphis ruoergaiensis sp.nov.,南充犹伊螨E.nanchongensis sp.nov.,王朗犹伊螨E.wanglangensis sp.nov.。     

青海犹伊螨属一新种（蜱螨亚纲：犹伊螨科）

本文绘图描述了根田鼠犹伊螨新种Eviphis oeconomus sp.nov.,并讨论了与喜马拉雅犹伊螨E.himalayaensis Ma et Piao,1981的鉴别特征。模式标本采自青海久治县的根田鼠Microtus oeconmus Pallas体上,存放在青海省地方病防治研究所。     

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.