河北大锥蚤—新亚种记述(蚤目:角叶蚤科)

报道采自湖北省神农架林区大锥蚤属ＭａｃｒｏｓｔｙｌｏｐｈｏｒａＥｗｉｎｇ,１９２９一新亚种,即河北大锥蚤神农架亚种Ｍａｃｒｏｓｔｙｌｏｐｈｏｒａｈｅｂｅｉｅｎｓｉｓｓｈｅｎｎｏｎｇｊｉａｅｎｓｉｓｓｐ．ｎｏｖ．。模式标本保存于湖北省医学科学院寄生虫病研究所媒介昆虫研究室。     

大锥蚤属一新种记述：（蚤目：角叶蚤科）

本文记述大锥蚤属Ｍａｃｒｏｓｔｙｌｏｐｈｏｒａ Ｅｗｉｎｇ,１９２９一新种,木鱼大锥蚤Ｍａｃｒｏｓｔｙｌｏｐｈｏｒａ ｍｕｙｕｅｎｓｉｓ ｓｐ．ｎｏｖ．,采自湖北省西北部神农架林区的棕足鼯鼠窝和岩松鼠体上,模式标本分别存放湖北省科学学院寄研究所和福建医学院医学昆虫研究室。     

大锥蚤属一新种记述（蚤目：角时蚤科）

本文记述大锥蚤属ＭａｃｒｏｓｔｙｌｏｐｈｏｒａＥｗｉｎｇ,１９２９－新种,木鱼大雄蚤Ｍａｃｒｏｓｔｙｌｏｐｈｏｒａｍｕｙｕｅｎｓｉｓｓｐ．ｎｏｖ,采自湖北省西北部神农架林区的棕足鼯鼠窝（Ｐｅｔａｕｒｉｓｔａｃｌａｒｋｅｉ）和岩松鼠（Ｓｃｉｕｒｏｔｍｉａｓｄａｖｉｄｉａｎｕｓ）体上,模式标本分别存放湖北省医学科学院寄生虫病研究所和福建医学院医学昆虫研究室。     

青海省多毛蚤属一新种记述(蚤目:多毛蚤科)

报道多毛蚤属Ｈｙｓｔｒｉｃｈｏ「ｐｓｙｌｌａ Ｔａｓｃｈｅｎｂｅｒｇ一新种,詹氏多毛蚤Ｈｙｓｔｒｉｃｈｏｐｓｙｌｌａ ｚｈａｎｉ ｓｐ．ｎｏｖ．,采自青海省民和县古鄯林场的斯氏水麝Ｑｕ Ｃｈｉｍａｒｒｏｇａｌｅ ｓｔｙａｎｉ体上。模式标本存于青海省地方病防治研究所。     

朝鲜叉蚤一新亚种记述：（蚤目：多毛蚤科）

本文记述了采自湖北省神农架林区叉蚤属Ｄｏｒａｔｏｐｓｙｌｌａ的一新亚种,命名为朝鲜叉蚤湖北亚种,新亚种Ｄｏｒａｔｏｐｓｙｌｌａ ｃｏｒｅａｎａ ｈｕｂｅｉｅｎｓｉｓ ｓｓｐ．ｎｏｖ．标本存于湖北省医学科学院寄生虫病研究所。     

中国西部纤蚤属两新种记述（蚤目：多毛蚤科）

本文报道了采自我国西部纤蚤属Ｒｈａ－ｄｉｎｏｐｓｙｌｌａ Ｊｏｒｄａｎ ｅｔ Ｒｏｔｈｓｃｈｉｌｄ,１９１２两新种;乌兰纤蚤Ｒｈａｄｉｎｏｐｓｙｌｌａ ｕｌａｎｇｅｎｓｉｓ Ｃａｉ ｅｔ Ｗｕ,ｓｐ,ｎｏｖ。和西藏纤蚤Ｒｈａｄｉｎｏｐｓｙｌｌａ ｘｉｚａｎｇｅｎｓｉｓ Ｃａｉ,Ｌｉ ｅｔ Ｚｈｅｎｇ,ｓｐ。ｎｏｖ。模式标本存放在作者单位。     

盲鼠蚤属一新种记述：蚤目：细蚤科

本文记述盲鼠蚤属ＴｙｐｈｌｏｍｙｏｐｓｙｌｌｕｓＬｉｅｔＨｕａｎｇ,１９８０一新种,巴山盲鼠蚤Ｔｙｐｈｌｏｍｙｏｐｓｙｌｌｕｓｂａｓｈａｎｅｎｓｉｓｓｐ．ｎｏｖ．,采自湖北省北部神农架林区猪尾鼠Ｔｙｐｈｌｏｍｙｓｃｉｎｅｒｅｕｓ和短尾ＧｏｕＡｎｏｕｒｏｓｏｒｅｘｓｑｕａｍｉｐｅｓｓｑｐｕａｍｉｐｅｓ体上     

青海多毛蚤属一新种记述（蚤目：多毛蚤科）

本文报道多毛蚤属Ｈｙｓｔｒｉｃｈｏｐｓｙｌｌａ的一新种,文贞多毛蚤Ｈ．ｗｅｎｚｈｅｎｉ ｓｐ．ｎｏｖ．,新种与近缘种圆凹多毛蚤Ｈ．ｒｏｔｕｎｄｉｓｉｎｕａｔａ,多刺多毛蚤Ｈ．ｍｕｌｔｉｄｅｎｔａｔａ和尼泊尔的Ｈ．ｓｙｎａｐｔｉｃａ接近而又有明显区别,新种采自青海省同德县的斯氏水麝鼠句Ｃｈｉｍａｒｒｏｇａｌｅ ｓｔｙａｎｉ,标本存青海省地方病防治研究所。     

栉叶蚤属一新种：蚤目：细蚤科

本文记述栉叶蚤属一新种,永登栉叶蚤Ｃｔｅｎｏｐｈｙｌｌｕｓ（Ｃｔｅｎｏｐｈｙｌｌｕｓ）ｙｏｎｇｄｅｎｇｉｓｐ．ｎｏｖ．标本采自甘肃省永登县,宿主为达乌尔鼠兔。     

古蚤属一新种记述（蚤目：多毛蚤科）

本文记述采自经省神农架林区古蚤属Ｐａｌａｅｏｐｓｙｌｌａ Ｗａｇｎｅｒ,１９０３－新种,巫山古蚤Ｐａｌａｅｏｐｓｙｌｌａ ｗｕｓｈａｎｅｎｓｉｓ ｓｐ．ｎｏｖ．,模式标本存于湖北省医学科学院寄生虫病研究所。     

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.