Journal of ultrastructure and molecular structure research最新文献_第6页

An ultrastructural study of the effects of gossypol on the endometrium of the female rat 棉酚对雌性大鼠子宫内膜影响的超微结构研究

Journal of ultrastructure and molecular structure research Pub Date : 1988-11-01 DOI: 10.1016/0889-1605(88)90003-1

Holly S. Bender , Thomas Caceci , Hara P. Misra

引用次数: 4

Ernst Ruska (1906-1988), a genius and a fine person. 恩斯特·鲁斯卡(1906-1988)，一个天才，一个好人。

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01

F S Sjöstrand

引用次数: 0

Three-dimensional structure of the crystalline surface layer from Aeromonas hydrophila 嗜水气单胞菌结晶表面层的三维结构

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90084-5

S. Al-Karadaghi, D.N. Wang, S. Hovmöller

引用次数: 14

Visualization of glycoproteins after tunicamycin and monensin treatment of herpes simplex virus infected cells 单纯性疱疹病毒感染细胞在tunicamycin和monenin治疗后的糖蛋白可视化

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90083-3

C. Lopez-Iglesias, F. Puvion-Dutilleul

{"title":"Visualization of glycoproteins after tunicamycin and monensin treatment of herpes simplex virus infected cells","authors":"C. Lopez-Iglesias, F. Puvion-Dutilleul","doi":"10.1016/0889-1605(88)90083-3","DOIUrl":"10.1016/0889-1605(88)90083-3","url":null,"abstract":"<div><p>The effects of tunicamycin and monensin on the morphogenesis of herpes simplex virus type 1 and on the ultrastructure and function of host cell membranes was investigated by conventional technics of electron microscopy and cytochemical localization of glycoproteins with thiocarbohydrazide-SO<sub>2</sub>. Infected RS 537 rabbit fibroblasts were treated with tunicamycin, which inhibits the glycosylation of many glycoproteins, or monensin, which inhibits the transport of proteins to the cell surface, and were compared with untreated infected cells. Tunicamycin treatment almost entirely suppresses the perinuclear envelopment of viral capsids, induces the nuclear export of unusually numerous naked viral capsids, and prevents the proliferation of the Golgi apparatus. On the other hand, perinuclear envelopment of viral capsids still occurs following a monensin treatment; however, enveloped viral capsids are not released into the extracellular space; in addition this treatment induces the proliferation of the rough endoplasmic reticulum (RER). The number of structures stained for glycoproteins in tunicamycin-treated cells is markedly lower than that in nontreated infected cells, whereas an unusual additional staining of the entire outer nuclear membrane and of the RER occurs following monensin treatment.</p></div>","PeriodicalId":77743,"journal":{"name":"Journal of ultrastructure and molecular structure research","volume":"101 1","pages":"Pages 75-91"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0889-1605(88)90083-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Cotyledon greening in hypogeal seeds of citrus fruits 柑桔果实种子下部子叶变绿

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90078-X

Nicoletta Rascio , Giorgio Casadoro

引用次数: 4

The surface structure of photoreceptor outer segment disks 感光器外节盘的表面结构

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90080-8

Fritiof S. Sjöstrand, Robert C. Candipan, Andres Durstenfeld

引用次数: 1

Structural correletes of permeability and tun formation in tardigrade cuticle: An image analysis study 缓步动物角质层渗透性与孔隙形成的结构相关性:图像分析研究

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90079-1

Jonathan C. Wright

{"title":"Structural correletes of permeability and tun formation in tardigrade cuticle: An image analysis study","authors":"Jonathan C. Wright","doi":"10.1016/0889-1605(88)90079-1","DOIUrl":"10.1016/0889-1605(88)90079-1","url":null,"abstract":"<div><p>Dimensions of the main cuticle components measured in four tardigrade species give strong support for their roles in permeability reduction and tun formation. The lipid intracuticle, proposed as the main desiccation barrier in tuns, is thickest in species most tolerant of rapid drying, supporting a multilayer lipid model for the variable cuticle permeability (J. C. Wright, <em>Tissue Cell</em>, in press). The cuticle shows the greatest variation in thickness (chiefly attributable to inter-/intrasegmental differences) in species effecting the greatest surface area reduction during tun formation, suggesting that thinner intersegmental cuticle allows for greater infolding. This is substantiated by the demonstration that the greatest variation in thickness—for all species—occurs in the presumably stiff, chitinous procuticle, with intermediate variation in the partly tanned epicuticle, and minimum variation in the untanned, probably highly flexible, intracuticle. The fenestrated dorsal plates of <em>Echiniscus testudo</em> are much thicker than any other components measured and may be an adaptation for reducing transpiration in this heterotardigrade species, compensating for its small reduction in surface area during tun formation.</p></div>","PeriodicalId":77743,"journal":{"name":"Journal of ultrastructure and molecular structure research","volume":"101 1","pages":"Pages 23-39"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0889-1605(88)90079-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53917552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Cyst and flagellar sheath formation in Diplotemnus sp. spermiogenesis 梁龙属植物精子发生过程中包囊和鞭毛鞘的形成

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90081-X

S.R. Bawa , Gerhard Werner

{"title":"Cyst and flagellar sheath formation in Diplotemnus sp. spermiogenesis","authors":"S.R. Bawa , Gerhard Werner","doi":"10.1016/0889-1605(88)90081-X","DOIUrl":"10.1016/0889-1605(88)90081-X","url":null,"abstract":"<div><p>Mature spermatozoa of <em>Diplotemnus</em> sp. are encysted. The cyst wall develops from randomly dispersed particulate material which, during midspermiogenesis, tends to collect along the irregularly outlined cell membrane of the spermatid. Further accumulation of such a material results in the sponginess of the cyst wall. In late spermatid, the intracellularly produced wall material becomes thick, compact, and electron dense. Later, the nongerminal testicular cells produce extracellular material which is deposited on the outside of the sperm cell membrame. Application of Thiéry's method confirms the presence of carbohydrates in the cyst wall. Finally the cyst wall assumes such a consistency that it becomes impermeable to the fixing fluids. In addition to the cyst wall, the sperm tail in <em>Diplotemnus</em> sp. presents some unusual morphological features; the axoneme is enclosed in a “flagellar tunnel” and the axoneme plus the flagellar tunnel, in turn, is enclosed in a unique structure—the “flagellar sheath”. The flagellar tunnel is formed by the close apposition of the outer leaflets of the invaginated cell membranes. This tunnel along with the axoneme retracts into the spermatid. By such a disposition the tunnel separates the motile apparatus from the mitochondria. The flagellar sheath is formed in a complex manner from the material provided by the so-called “cisternal convolution.” Electron-dense material appears in the lumina of the cisternae of the convolution; the cisternae then dissociate from the parent body and enwrap the coiled flagellum.</p></div>","PeriodicalId":77743,"journal":{"name":"Journal of ultrastructure and molecular structure research","volume":"101 1","pages":"Pages 51-61"},"PeriodicalIF":0.0,"publicationDate":"1988-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0889-1605(88)90081-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"53917871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

The spermatozoon of Asphondyliidi (Diptera, Cecidomyiidae) asphondylide的精子（直翅目，cidomyiidae）

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90085-7

R. Dallai

引用次数: 31

Ernst Ruska (1906–1988), a genius and a fine person 恩斯特·鲁斯卡(1906-1988)，一个天才，一个好人

Journal of ultrastructure and molecular structure research Pub Date : 1988-10-01 DOI: 10.1016/0889-1605(88)90076-6

引用次数: 1