云南卵翅蝗属二新种(直翅目,蝗总科)

记述卵翅蝗属Caryanda St(a)tl,1878 2新种,印氏卵翅蝗Caryanda yini Mao et Ren,sp.nov.和尾齿卵翅蝗Caryanda dentata Mao et Ou,sp.nov.;为便于比较补充记述了上述2种的近似种德宏卵翅蝗Caryanda dehongensis Mao,Xu et Yang,2003的雄性外生殖器.模式标本及本文使用的其它标本均保存于大理学院生命科学与化学学院.     

卵翅蝗属云南省二新种记述(直翅目,斑腿蝗科)

记述采自云南省的卵翅蝗属Caryanda 2新种:抱须卵翅蝗Caryanda amplexicerca sp.nov.和犁须卵翅蝗Caryanda cultricerca sp.nov..模式标本保存于西南林学院.抱须卵翅蝗,新种Caryanda amplexicerca sp.nov.(图1～4,9～12)新种近似方板卵翅蝗Caryanda quadrata Bi et Xia,1984.区别是:1)前翅明显超过第1腹节背板后缘;2)后足股节橙红色,胫节蓝绿色;3)雄性尾须片状,侧扁,顶端明显向内向下弯曲,呈抱握状;4)雌性下生殖板后缘中央圆弧形突出.词源:新种命名根据雄性具有抱握状的尾须.正模(♂),云南省个旧卡房(23°22'N,103°09'E),2100m,2006-09-03,柳青采集;副模20(♂)(♂),18♀♀,同正模.犁须卵翅蝗,新种Caryanda cultricerca sp.nov.(图5～8,13～16)新种近似三齿卵翅蝗Caryanda triodonta Fu et Zheng,1994.区别是:1)前翅长雄性2.5～3.6 mm,雌性3.0～3.8 mm;2)雄性尾须犁状;3)雌性下生殖板后缘具三突,中突钝角形,两侧突顶圆,翘起.词源:新种命名根据雄性具有犁状的尾须.正模(♂),云南省临沧永德(23°53'N,100°05'E),2060m,2006-08-17,柳青采集;副模17(♂)(♂),8♀♀,同正模.     

云南省卵翅蝗属一新种(直翅目,斑腿蝗科)

记述采自云南省普洱地区卵翅蝗属1新种,即圆板卵翅蝗Caryanda cyclata sp.nov.,新种近似于方板卵翅蝗Caryanda quadrata Bi et Xia,1984,主要区别为:1)雄性肛上板盾形,后缘圆弧形;2)雌性下生殖板后缘具3齿;3)雌性前翅超过第1腹节背板后缘;4)雄性尾片及肛上板两侧缘非黑色;5)雄性尾须黑色;6)前翅黑色;7)后足股节端半部橙红色;8)后足胫节青兰色.模式标本保存于陕西师范大学动物研究所昆虫标本室.     

中国斑腿蝗科二新种记述(直翅目,蝗总科)

记述了中国斑腿蝗科2新种:红股蹦蝗Sinopodisma rufofemoralis sp.nov.(正模♂,副模6♂♂,2♀♀,广西融安元宝山);钝齿卵翅蝗Caryanda obtusidentata sp.nov.(正模♂,副模4♂♂,2♀♀,湖南宜章莽山自然保护区泽子坪).新种的模式标本均保存于湖南师范大学生命科学学院动物标本馆.     

云南卵翅蝗属一新种记述 (直翅目:斑腿蝗科)

记述采自滇西南地区德宏的卵翅蝗属Caryanda 1新种:德宏卵翅蝗Caryanda dehongensis, sp. nov., 模式标本保存于大理学院生命科学与化学系。 德宏卵翅蝗Caryanda dehongensis,新种(图1~4) 本新种近似于方板卵翅蝗Caryanda quadrata Bi et Xia 和大尾片卵翅蝗C. macrofurcula Mao et Ou,但以以下特征区别于后二种:1)体较大,♂19.5~20.0 mm,♀22.5~25.5 mm;2)前胸背板沟前区长为沟后区长的2.4(♂)或2.8(♀)倍;3)雄性次末节背板后缘具三角形小尾片;4)雄性肛上板长盾形,后缘中央三角形突出;5)雌性下生殖板后缘接近平直。 正模:♂,云南德宏(24.7°N,98.2°E),2002-Ⅷ-20,李燕珍采;副模:2♂♂4♀♀,云南德宏(24.7°N,98.2°E),2002-Ⅹ-01,李燕珍、徐吉山、杨国辉采。     

武陵山地区卵翅蝗属二新种：直翅目：斑腿蝗科

本文记述采自湖南湘西武陵山地区卵翅蝗属Ｃａｒｙａｎｄａ二新种,武陵山卵翅蝗Ｃａｒｙａｎｄａ ｗｕｌｉｎｇｓｈａｎａ ｓｐ．ｎｏｖ．和三齿卵翅蝗Ｃａｒｙａｎｄａ ｔｒｉｏｄｏｎｔａ ｓｐ．ｎｏｖ．。模式标本保存于陕西师范大学生物系。     

广西省苗儿山自然保护区蝗虫二新种（直翅目：斑腿蝗科）

记述采自广西南岭山地苗儿山自然保护区斑腿蝗科Catantopidae龙州蝗属Longzhouacris You et Bi,1983 1新种：苗儿山龙州蝗L.miaoershanensis,sp.nov.及卵翅蝗属Caryanda Stal,1878 1新种：苗儿山卵翅蝗C.miaoershana,sp.nov.。新种模式标本保存于湖南师范大学生命科学学院桃花坪校区昆虫标本室。     

四川蝗虫二新种(直翅目:蝗总科)

1985年5—10月作者等在四川省卧龙自然保护区和马边县大风顶自然保护区进行竹类害虫调查,采得危害竹林的卵翅蝗属Caryanda St(?)l,1878一新种;并在整理四川省永川森林病虫防治试验站蝗虫标本时,又发现该属一新种,现记述如下。模式标本保存于缺西师范大学生物系蝗虫研究室。     

中国卵翅蝗属一新种记述(直翅目,蝗总科)

记述了中国斑腿蝗科卵翅蝗属1新种:四齿卵翅蝗C.quadridenta sP.nov..正模♂,副模9♂♂,10♀♀,中国重庆市四面山,海拔900m,2003-08-06,黄建华采.新种模式标本均保存于湖南师范大学生命科学学院动物标本馆.     

广东省卵翅蝗属一新种(直翅目:蝗总科)

在调查广东省封开县黑石顶自然保护区的昆虫中,作者发现斑腿蝗科卵翅蝗属(Caryanda Stl,1878)一新种。模式标本保存于中山大学昆虫学研究所标本室。 黑条卵翅蝗Caryanda nigrolinedta新种(图1—9) 雄虫 体型小。头短于前胸背板。触角丝状,细长,向后远超过后足股节基部,中段     

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.