Abstract：
:Using microsurgical manipulations, hormone applications, and transmission electron microscopy we have investigated the regulation of differentiation of the follicular epithelium and formation of the vitelline envelope (VE) in primary follicles in the ovary of the mosquito, Aedes aegypti. During the first 3 days after eclosion, the primary follicle grows, and cells of the follicular epithelium differentiate, their content of mitochondria, rough endoplasmic reticulum, and Golgi complexes increases significantly. Growth and differentiation of the follicular epithelium appear to be under the control of juvenile hormone (JH), because they are blocked by removal of corpora allata in newly closed adult females and can be restored by either implantation of corpora allata or application of JH III. In insects, including mosquitoes, VE is the first layer of the eggshell to be deposited. It is formed from the secretory products of the follicle cells and its deposition coincides with yolk accumulation by developing oocytes. Only follicle cells adjacent to the oocyte deposit VE. In decapitated females, given a blood meal by enema and injected with picogram doses of 20-hydroxyecdysone (20-HE), follicle cells synthesize the VE precursors and deposit morphologically normal VE, in contrast to saline injected controls which deposit no VE. We conclude that 20-HE, as well as factors originating from the blood meal and the oocyte, are required for the normal formation of VE in the mosquito follicles.
journal_name
Tissue Celljournal_title
Tissue & cellauthors
Raikhel AS,Lea AOdoi
10.1016/0040-8166(91)90015-lsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
577-91issue
4eissn
0040-8166issn
1532-3072pii
0040-8166(91)90015-Ljournal_volume
23pub_type
杂志文章相关文献
TISSUE & CELL文献大全abstract：:In a previous paper, cellulose fibres were demonstrated in the larval, the metamorphosing, and the juvenile tunics. In this paper we used cytochemical methods and X-ray microanalysis to obtain additional information on tunic morphogenesis in Halocynthia papillosa. The chemical composition of the tunic evolves with its...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/s0040-8166(96)80069-3
更新日期：1996-12-01 00:00:00
abstract：:The immunohistochemical distribution of galanin (Gal) in the brain and pituitary of Rhinella arenarum was studied during development. Gal-immunoreactivity was first observed in the brain just after hatching in anterior preoptic area, infundibular area, median eminence and pars distalis of the pituitary as well as in t...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/j.tice.2008.03.002
更新日期：2008-10-01 00:00:00
abstract：:The inner (protein) epicuticle of the pupal cuticle of Drosophila is shown to contain at least two hydrophobic proteins (19 and 21 kD) that are also present in the outer procuticle lamellae. An N-acetylglucosamine-containing carbohydrate is also present in the inner epicuticle. This represents the first attempt to cha...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(86)90019-4
更新日期：1986-01-01 00:00:00
abstract：:Bovine pulmonary artery endothelial cells in culture were evaluated by phase-contrast and electron microscopy at various times after being irradiated with 137Cs in vitro. Cells irradiated prior to reaching confluency showed vacuolization aand increased numbers of lysosomes beginning at 48 hr after irradiation with 300...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(83)90016-2
更新日期：1983-01-01 00:00:00
abstract：:Sporogony of the sporozoan Theileria parva in the salivary gland of the tick vector of East Coast fever was studied in electron micrographs. The findings differ in several respects from previous interpretations based upon light microscopy. Cytokinesis of the primary sporoblast to form secondary and tertiary sporoblast...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(82)90017-9
更新日期：1982-01-01 00:00:00
abstract：:The ultrastructure of peduncle muscle attachment to the cuticular flange in the opercular filament of the serpulid Pomatoceros lamarckii Quatrefages is described. The cuticular flange is composed of layers of orthogonally arranged fibres. Specialized epithelial cells (tendon cells) and a collagenous matrix intervene b...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(83)90007-1
更新日期：1983-01-01 00:00:00
abstract：:The presence of stage-dependent occlusive junctions between adjacent Sertoli cells in the seminiferous epithelium of the crayfish testis was demonstrated by a lanthanum tracer study. The germinal epithelium did not appear to be compartmentalized, as evidenced by access of lanthanum to spermatogonia, spermatocytes, and...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1054/tice.2001.0211
更新日期：2001-12-01 00:00:00
abstract：:Centrioles are involved in the formation of cilia and flagella and in the organization of the centrosome, the main microtubule-organizing center of the cell. Since structural and functional centriole aberrations can contribute to several human diseases, these organelles have recently focused the attention of cell biol...
journal_title：Tissue & cell
pub_type： 杂志文章,评审
doi：10.1016/j.tice.2010.01.002
更新日期：2010-04-01 00:00:00
abstract：:A detailed model for hyposmotic fluid formation in Hydra is presented. We propose that enteron fluid formation occurs in two steps: (1) segregation of an isosmotic fluid in large intercellular vacuoles with (2) subsequent reabsorption of solute in the intercellular channels to form the hyposmotic fluid of the enteron....
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(77)90045-3
更新日期：1977-01-01 00:00:00
abstract：:The intercellular junctions associated with the modified glial cells of the perineurium have been examined in the ganglia and main abdominal nerves of the blood-sucking bug Rhodnius prolixus, both before and and after feeding, by means of freeze-fracture and tracer studies. It was found that the pleated septate juncti...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(85)90040-0
更新日期：1985-01-01 00:00:00
abstract：:An ultrastructural study of the sinus gland of the terrestrial isopod, Oniscus asellus, reveals that this structure consists of two regions: the bulb, which is attached by a narrow stalk to the optic lobe, and the lateral extension, which extends from the bulb along the optic tract to the compound eye. The bulb has a ...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(85)90058-8
更新日期：1985-01-01 00:00:00
abstract：:In this study we followed the behavior of germ cell precursors in the early embryo of the dipteran Ceratitis capitata using conventional fluorescence, laser scanning confocal and transmissiom electron microscopies. During cellularization the pole cells formed a cluster which lodged in a roundish break in the blastoder...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/s0040-8166(96)80048-6
更新日期：1996-02-01 00:00:00
abstract：:The primary musculature of Sagitta is mainly made up of two kinds of alternating fibers, A and B. These fibers differ markedly in their localization in the muscular tissue, by the development of their SR and their mitochondria, and the shape of their myofibrils. Their contractile apparatus is similar and possesses myo...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(80)90025-7
更新日期：1980-01-01 00:00:00
abstract：:In order to determine the extent and variations in surface concavanalin A (CON A) and wheat germ agglutinin (WGA) labeling of different varieties of normal blood cells, gluraraldehyde-fixed human blood cells were exposed to CON A-gold labeled horseradish peroxidase (CON A-HRP-G) and WGA-gold labeled ovomucoid (WGA-OVO...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(83)90042-3
更新日期：1983-01-01 00:00:00
abstract：:The general identification of endocrine cells in the stomach of the lizard Podarcis hispanica was carried out by their response to the Grimelius and Masson-Fontana techniques. 11 immunoreactive cell-types, positive for chromogranin-, serotonin-, caerulein/gastrin/ cholecystokinin (CAER/G/CCK)-, glucagon-like-peptide-1...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(92)90041-5
更新日期：1992-01-01 00:00:00
abstract：:Malaria, one of the leading causes of death in underdeveloped countries, is primarily diagnosed using microscopy. Computer-aided diagnosis of malaria is a challenging task owing to the fine-grained variability in the appearance of some uninfected and infected class. In this paper, we transform a malaria parasite objec...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/j.tice.2020.101473
更新日期：2020-12-31 00:00:00
abstract：:The vascular endothelium as well as subendothelium are objects of many researches as it is directly involved in a multiplicity of physiological and pathological settings. Detailed study of endothelial function became feasible with the development of techniques to culture endothelial cells (EC) in vitro. Limitations of...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/j.tice.2015.03.004
更新日期：2015-06-01 00:00:00
abstract：:The presence of corticotropin-releasing factor-like material in the intermaxillary glands was studied by immunocytochemical techniques during the metamorphosis of Bufo arenarum. The intermaxillary glands appeared at stage XV (midprometamorphosis) with CRF-like material slightly immunoreactive. These glands are located...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1054/tice.2000.0098
更新日期：2000-04-01 00:00:00
abstract：:Junctional complexes between the epithelial cells in the four distinct regions of the glow-worm Malpighian tubule were investigated by electron microscopy using thin sectioning, freeze-fracturing, osmotic disruption and tracer techniques. The lateral plasma membranes of all four cell types are joined by smooth septate...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(80)90011-7
更新日期：1980-01-01 00:00:00
abstract：:The spatial arrangement of tight junctions in choroid plexus and ciliary body rabbit epithelia has been determined by studying freeze-fracture complementary replicas. In the choroid plexus epithelium, the interruptions of the junctional P-face fibrils were measured to be 14% in their total length. In the ciliary body ...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(80)90034-8
更新日期：1980-01-01 00:00:00
abstract：:We used immunofluorescence microscopy and isoactin-specific antibodies to characterize the pattern and prevalence of pericytes within the brain microcirculation. Blood pressures of normotensive, Wistar-Kyoto (WKY) and spontaneously hypertensive (SHR) rats were measured prior to sacrifice and pressure-perfusion fixatio...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(88)90002-x
更新日期：1988-01-01 00:00:00
abstract：:We have recently shown that down-regulation of mouse Thy28 (mThy28) protein expression appears to be accompanied by apoptotic processes. Thymocytes from mice contain moderate amounts of mThy28 protein and undergo proliferation, differentiation, or apoptosis during murine thymic maturation. As a first step to examine t...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/s0040-8166(03)00073-9
更新日期：2003-12-01 00:00:00
abstract：:The rat aorta, whose three wall layers can be separated by microdissection offers the rare possibility of comparing physiological characteristics of in vivo tissular cell components and corresponding cells after culture. We developed a technique allowing the dissociation of the three tunicae (intima, media and adventi...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(94)90043-4
更新日期：1994-12-01 00:00:00
abstract：:Bilateral pairs of specific neurones in the metathoracic ganglion of the cockroach were used to study the ultrastructural changes which follow axon injury. The appearance of these matched pairs of cells was compared three days after the axons on one side of the ganglion only had been severed. The control or uninjured ...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/s0040-8166(70)80039-8
更新日期：1970-01-01 00:00:00
abstract：:We have performed studies to determine if different populations of satellite cells provide nuclei to growing and regenerating skeletal muscle fibers. Satellite cells were isolated from regenerating or growing anterior tibialis muscles, and their phenotypic properties were compared in vitro. Isolates from regenerating ...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/s0040-8166(96)80057-7
更新日期：1996-10-01 00:00:00
abstract：:The aim of the present study was to investigate protein profiles of human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) cultured in normoxic (21% O2) and hypoxic (1% O2) conditions, and evaluate oxygenation effects on angiogenesis in an ischemic hindlimb mouse model using a modified ischemic scoring ...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/j.tice.2017.09.006
更新日期：2017-12-01 00:00:00
abstract：:The epithelial cell morphology and distribution in the utero-tubal junction and isthmus of pigs was documented by scanning electron microscopy around ovulation. In animals mated at different times before slaughter, our observations confirmed that the utero-tubal junction and posterior part of the isthmus regulate the ...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(81)90043-4
更新日期：1981-01-01 00:00:00
abstract：:Responses of cells in the tick salivary gland to parasitism by Theileria parva were studied by electron microscopy. The gland is composed of three distinct types of acini (I, II, III) which together include ten or more different cell types. Of some 30 infected cells observed in the present study, all were E-cells of a...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(82)90035-0
更新日期：1982-01-01 00:00:00
abstract：:The arrangement and distribution of connective tissue in six different skeletal muscles and smooth muscle was examined by scanning electron microscopy. The endomysial arrangement of collagen was similar in all types of muscle and consisted of three components: (1) myocyte-myocyte connectives; (2) myocyte-capillary con...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/0040-8166(80)90061-0
更新日期：1980-01-01 00:00:00
abstract：:To obtain information about the chemical composition of pore structures in antennal sensilla, the antennae were exposed to lipid solvents, or they were prepared to show negative-contrast images in electron micrographs. A heavy-metal tracer, lanthanum nitrate, was also used to indicate the permeability of the receptors...
journal_title：Tissue & cell
pub_type： 杂志文章
doi：10.1016/s0040-8166(71)80012-5
更新日期：1971-01-01 00:00:00
