河南省藓类植物新报

报道了最近在河南省宝天曼自然保护区所采１４号藓类植物标本中,经研究,其中包括１个新变种,即：苏氏牛舌藓河南变种Ａｎｏｍｏｄｏｎ ｓｏｌｏｖｊｏｖｉｉ Ｌａｚａｒｅｎｋｏ ｖａｒ．ｈｅｎａｎｅｎｓｉｓ Ｔａｎ,Ｂｏｕｆｆｏｒｄ ｅｆ Ｙｉｎｇ,ｖａｒ．ｎｏｖ．另外有８种为河南省新纪录。     

中国白粉菌科的四个新记录种

本文报道了中国白粉菌科Ｅｒｙｓｉｐｈａｃｅａｅ的四个新记录种和变种,即：ＥｒｙｓｉｐｈｅｃａｔａｌｐａｅＳｉｍｏｎ．,Ｅ．ｔｈｅｓｉＪｕｎｅｌ,Ｅ．ｕｌｍａｒｉａｅＤｅｓｍ．和ＭｉｃｒｏｓｐｈａｅｒａｄｉｆｆｕｓａＣｏｏｋｅ＆Ｐｅｃｋｖａｒ．ｔｈｅｒｍｏｐｓｉｄｉｓ（Ｊａｃｚ．）Ｔ．Ｚ．Ｌｉｕｃｏｍｂ．ｎｏｖ．。最后的变种同时是新组合。     

四种旱生藓类植物的比较结构学观察

对新疆产的４种藓类植物茎、叶的表面及内部结构进行了观察,结果表明：尖叶大帽藓（Ｅｎｃａｌｙｐｔａ ｒｈａｂｄｏｃｕｒｐａ Ｓｃｈｗａｅｇｒ．）茎的中部结构类似于种子植物（单子叶）根的内皮层,其茎表皮也有类似于种子植物表皮毛（腺毛）的腺体。在阔叶紫萼藓（Ｇｒｉｍｍｉａ ｌａｅｖｉｇａｔａ（Ｂｒｉｄ．）Ｂｒｉｄ．）茎的中轴部,厚角组织发达,数层皮部厚壁组织也很发达。小石藓（Ｗｅｉｓｉａ ｃｏｎｔｒｏｖ     

中国齿裂菌属研究Ⅱ.

我国齿裂菌属的４个分类单元,其中包括２个新种：生于青冈」Ｃｙｃｌｏｂａｌａｎｏｐｓｉｓｇｌａｕｃａ（Ｔｈｕｎｂ．）Ｏｅｒｓｔ．「上的青冈齿裂菌（Ｃｏｃｃｏｍｙｃｅｓ ｃｙｃｌｏｂａｌａｎｏｐｓｉｓ Ｙ．Ｒ．Ｌｉｎ＆Ｚ．Ｚ．．Ｌｉ ｓｐ．ｎｏｖ．）和生于香叶树（Ｌｉｎｄｅｒａ ｃｏｍｍｕｎｉｓ Ｈｅｍｓｌ．）上的福建齿裂菌（Ｃ．ｆｕｊｉａｎｅｎｓｉｓ Ｙ．Ｒ．Ｌｉｎ＆Ｃ．Ｔ．．Ｘｉａｎｇ ｓｐ．ｎｏ     

书评Book Reviews Ⅲ

Ａ．Ｙ．Ｒｏｓｍａｎ，Ｒ．Ｅ．Ｔｕｌｏｓ，Ｔ．Ｅ．Ｏ’Ｄｅｌ＆Ｒ．Ｇ．Ｔｈｏｒｎ：ＰｒｏｔｏｃｏｌｓｆｏｒａｎａｌｔａｘａｂｉｏｄｉｖｅｒｓｉｔｙｉｎｖｅｎｔｏｒｙｏｆｆｕｎｇｉｉｎａＣｏｓｔａＲｉｃａｎｃｏｎｓｅｒｖａｔｉｏｎａｒｅａ（Ｐａｒｋｗ...     

盘菌纲一新属——新齿裂菌属

在安徽省黄山杜鹃〗Ｒｈｏｄｏｄｅｎｄｒｏｎ ｍａｃｕｌｉｆｅｒｕｍ Ｆｒａｎｃｈ．ｓｓｐ．ａｎｈｗｅｉｅｎｓｅ （Ｗｉｌｓ．）Ｃｈａｍｂ．〖上发现盘菌纲一新属－－新齿裂菌属（ＮＨｅｏｃｏｃｃｏｍｙｃｅｓＹ．Ｒ．Ｌｉｎ,Ｃ．Ｔ．Ｘｉａｎｇ＆Ｚ．Ｚ．Ｌｉ）．对该属及其模式种－－杜鹃新齿裂菌（Ｎ．ｒｈｏｄｏｄｅｎｄｒｉ Ｙ．Ｒ．Ｌｉｎ,Ｃ．Ｔ．Ｘｉａｎｇ＆Ｚ．Ｚ．Ｌｉ）进行了描述和讨论。主模式标本存放在     

中国尾孢菌属及其近似属的研究Ⅱ.

５种尾孢菌和２种假尾孢菌,其中有３个新种：杜若尾孢Ｃｅｒｃｏｓｐｏｒａ ｐｏｌｌｉａｅ－ｊａｐｏｎｉｃａｅＹ．Ｌ．Ｇｕｏ＆Ｙ．Ｊｉａｎｇ,ｓｐ．ｎｏｖ．,日本锦带花尾孢Ｃ．ｗｅｉｇｅｌａｅ－ｊａｐｏｎｉｃａｅＹ．Ｌ．Ｇｕｏ＆Ｙ．Ｊｉａｎｇ,ｓｐ．ｎｏｖ．和旋覆花假尾孢Ｐｓｅｕｄｏｃｅｒｃｏｓｐｏｒａ ｉｎｕｌａｅＹ．Ｌ．Ｇｕｏ＆Ｙ．Ｊｉａｎｇ,ｓｐ．ｎｏｖ．,１个新组合：紫菀假尾孢Ｐｓｅｕｄｏｃｅ     

藓类植物传孢类型及其系统演化关系

藓纲包括３个亚纲（Ｂｒｏｔｈｅｒｕｓ,１９２４－１９２５）。泥炭藓亚纲、黑藓亚纲,真藓亚纲,全世界约１００个科,近８００属,约１５０００种。藓类的传孢类型和藓类植物系统演化有密切关系。我们认为传孢不同类型,直接反映了他们的演化程度。我们根据藓类孢子体的分化、蒴齿分化与其机能,分为５种传孢类型。即腐媒传孢型,风媒孢型,汽－风媒传孢型,水媒传孢型,和虫媒传孢型等５种。根据它们的演化程度比较,我们提出了     

中国剪管蓟马属种类及一新种记述：缨翅目：管蓟马科

本文记述了剪管蓟马属Ｐｓａｌｉｄｏｔｈｒｉｐｓ中国的６种,其中有中国新记录１种：爪哇剪管藓马：Ｐ．ａｍｅｎｓＰｒｉｅｓｎｅｒ和１新种：车八岭剪管藓马Ｐ．ｃｈｅｂａｌｉｎｇｉｃｕｓｓｐ．ｎｏｖ。模式标本存 南农业大学昆虫标本室。     

华南地区羽枝藓属（平藓科）和凋叶藓属（薄齿藓科）植物研究

本文研究了华南地区羽枝藓属（Ｐｉｎｎａｔｅｌｌａ）和凋叶藓属（Ｃａｄｕｃｉｅｌｌａ）植物．简要讨论了羽枝藓属和凋叶藓属的系统位置．确认华南地区产羽枝藓属４种,即爪哇羽枝藓（Ｐ．ａｎｂｉｇｕａ）、纤细羽枝藓（Ｐ．ａｎａｃａｍｐｔｏｌｅｐｉｓ）、嵌边羽枝藓（Ｐ．ｉｎｔｒａｌｉｍｂａｔａ）和东亚羽枝藓（Ｐ．ｍａｋｉｎｏｉ）,凋叶藓２种,即广东凋叶藓（Ｃ．ｇｕａｎｇｄｏｎｇｅｎｓｉｓ）和凋叶藓（Ｃ．ｍａｒｉｅｉ）．其中爪哇羽枝藓为广东、贵州、海南岛之新记录,纤细羽枝藓为中国大陆（广东、广西）和海南岛之新记录,东亚羽枝藓为福建、广西和海南岛之新记录,广东调叶藓为海南岛之新记录,暂将Ｐ．ａｌｏｐｅｃｕｒｉｏｉｄｅｓ处理为存疑种。本文还包括分种检索表、各种的简要识别特征、产地及生境资料．     

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.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

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.