跗线螨属两新种：蜱螨亚纲：跗线螨科

本文记述了跗线螨属新种,长毛跗线螨Ｔａｒｓｏｎｅｍｕｓ ｌｏｎｉｓｅｔａｃｅｕｓｓｐ．ｎｏｖ．,泰氏跗线螨Ｔａｒｓｏｍｅｍｕｓ ｔｅｌａａｋｉ ｓｐ．ｎｏｖ．,并与近似种比较。模式标本促存在德国联邦农林生物研究中心,葡萄保护研究所及甘肃农业大学。     

福建角跗线螨属一新种（蜱螨亚纲：跗线螨科）

本文记述角跗线螨属一新种,罩角跗线螨Ｃｅｒａｔｏｔａｒｓｏｎｅｍｕｓ ｔｅｇｍｅｎ ｓｐ．ｎｏｖ．雌螨前足体背板呈罩状覆盖颚体,颚体背面具背中表皮内突。背片Ｈ上ｈ毛内前侧有１对孔隙ｉｈ。正模♀,副模１♀,采自福建南靖县乐土亚热带雨林自然保护区枯死树干的树皮内扁蝽科昆虫Ｍｅｚｉｒａ ｓｐ．体上。模式标本保存于福建省农科院植保所。新种与Ｃ．ｓｃｉｔｕｓ Ｄｅｌｅｏｎ相似,但与后者区别：１）背片Ｃ无斑纹     

中国纹跗线螨属一新种：蜱螨亚纲：跗线螨科

本文记述跗线螨科纹跗线螨属Ｏｇｍｏｔａｒｓｎｅｍｕｓ一新种Ｏ．ｌｉｕｉ ｓｐ．ｎｏｖ．正模♀♀采自福建省上杭县田茭白Ｚｉｚａｎｉａ ｃａｄｕｃｉｆｌｏｒａ（Ｔｕｒｃｚ．）Ｈａｎｄ．－Ｍａｚｚ．植物上,保存于福建省农科院植保所。     

跗线螨属一新种（蜱螨亚纲：跗线螨科）

本文描述跗线螨属一新种,英氏跗线螨。新种以作者在德国进修时的导师Ｗ．Ｄ．Ｅｎｇｌｅｒｔ的姓氏命名。其特点是：２ａ毛生于第２表皮内突近远端１／３处,Ｃａ毛短于其相互间距;跗节Ⅱ的Ｔαβ感棒生于该节的基部;３ａ毛的位置不高于后中表皮内突的前端点。     

跗线螨属一新种：蜱螨亚纲：跗线螨科

本文记述德国跗线螨属１新种－Ｔａｒｓｏｎｅｍｕｓ ｇｅｒｍａｉｎｉｓｉｓ,ｓｐ．ｎ．。标本分别呆存在德国联邦农林生物研究中心（ＢＢＡ）,葡萄保护研究怕（正模♀和副模３♀♀）和甘肃农业大学植物保护系（副模３♀♀）。     

中国跗线螨属二新纪录：蜱螨亚纲：跗线螨科

中国跗线螨属二新纪录（蜱螨亚纲：跗线螨科）林坚贞,张艳璇（福建省农科院植保所福州３５００１３）范青海（福建农业大学植保系福州３５０００２）ＴＷＯＮＥＷＲＥＣＯＲＤＳＯＦＴＡＲＳＯＮＥＭＵＳＦＲＯＭＣＨＩＮＡ（ＡＣＡＲＩ：ＴＡＲＳＯＮＥＭＩＤＡＥ）￥Ｌ...     

福建狭跗线螨属一新种(蜱螨亚纲:跗线螨科)

在研究跗线螨期间,我们发现一个新种。隶属于跗线螨科Tarsonemidae Kramer,1877狭跗线螨属Steneotarsonemus Beer,1954拟叉毛狭跗线螨Steneotarsonemus su-bfurcatus,新种模式标本保存于福建省农科院植保所。文中长度单位为μm。 拟叉毛狭跗线螨Steneotarsonemus subfurcatus新种(图1—6) 雄成螨 体长177—190(从颚体须肢的前端至生殖乳突的末端),体宽87—90(测量3个标本的数据)。     

福建跗线螨属一新种：蜱螨亚纲：跗线螨科

本文记述采自福建双孢蘑菇Agaricus bisporus上跗线螨属一新种,主要寄生在蘑菇培养料内,常集中为害菌种块菌丝,直接影响出菇;其次寄生在蘑菇栽培种內,吸食蘑菇菌丝,造成菌丝不能萌发。     

谷跗线螨交叉反应性变应原的定位

为明确谷跗线螨Tarsonemus granarius交叉反应性变应原在体内的定位, 制作谷跗线螨石蜡切片, HE染色后光镜观察其内部形态结构; 选用对尘螨过敏患者的阳性血清特异性IgE抗体作探针, 免疫组织化学染色分析其交叉反应性抗原存在位置。HE染色显示谷跗线螨的消化系统占据其体腔的大部分, 包括口咽部、 中肠、 后肠、 肛门和唾液腺等结构。免疫组织化学染色显示谷跗线螨的口咽部、 中肠、 肠内容物、 肠壁及生殖腺等均有阳性反应。谷跗线螨体内存在可诱发人体IgE抗体的变应原, 变应原在其体内的分布格局与屋尘螨Dermatophagoides pteronyssinus基本一致。     

中国跗线螨科二新纪录种（蜱螨亚纲：真螨目）

中国跗线螨科二新纪录种（蜱螨亚纲：真螨目）林坚贞,张艳璇（福建省农科院植保所福州３５００１３）范青海（福建农业大学植保系福州３５０００２）ＴＷＯＮＥＷＬＹＲＥＣＯＲＤＥＤＳＰＥＣＩＥＳＯＦＴＡＲＳＯＮＥＭＩＤＡＥＦＲＯＭＣＨＩＮＡ（ＡＣＡＲＩ：ＡＣＡ...     

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.     

Synthesis and antimicrobial studies of hydrazone derivatives of 4-[3-(2,4-difluorophenyl)-4-formyl-1H-pyrazol-1-yl]benzoic acid and 4-[3-(3,4-difluorophenyl)-4-formyl-1H-pyrazol-1-yl]benzoic acid

Microbial resistance to antibiotics is an unresolved global concern, which needs urgent and coordinated action. One of the guidelines of the Centers for Disease Control and Preventions (CDC) to combat antibiotic resistance is the development of new antibiotics to treat drug-resistant bacteria. In our effort to find new antibiotics, we report the synthesis and antimicrobial studies of 30 new pyrazole derivatives. These novel molecules have been synthesized by using readily available starting materials and benign reaction conditions. Some of these molecules have shown activity with MIC values as low as 0.78?µg/mL against four bacterial strains; Staphylococcus aureus, methicillin-resistant S. aureus, Bacillus subtilis, and Acinetobacter baumannii. Furthermore, active molecules are non-toxic to mammalian cell line.

     

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.