Abstract：
:Synapse elimination was examined in the developing frog cutaneous pectoris muscle using histological and electrophysiological techniques. Morphological synapse elimination occurred in two phases. The first phase, which began at the time of metamorphosis and continued until the second to third postmetamorphic week, was characterized by a rapid decline in the number of endplates receiving greater than or equal to 3 synaptic inputs. However, 50% of the muscle fibers still remained dually innervated. This dual innervation decreased with a much slower time course; approximately 20% of the muscle fibers were dually innervated in 1- to 2-year-old frogs. During the first phase of synapse elimination no difference was noted between the distribution of acetylcholine receptors or acetylcholinesterase activity associated with the terminal arborizations formed by separate axons at one synaptic site. However, terminal arborizations formed by small diameter axons and consisting of varicosities separated by thin interconnectives became apparent during this period. Such varicose arborizations responded to nerve stimulation and released acetylcholine in proportion to their terminal length as did the nonvaricose arborizations. In addition, the number of morphological and physiological inputs at one endplate site was well correlated throughout the first phase of synapse elimination.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Morrison-Graham Kdoi
10.1016/0012-1606(83)90279-8subject
Has Abstractpub_date
1983-10-01 00:00:00pages
298-311issue
2eissn
0012-1606issn
1095-564Xpii
0012-1606(83)90279-8journal_volume
99pub_type
杂志文章abstract：:Urodele amphibians can regenerate their limbs. During limb regeneration, dermal fibroblasts are transformed into undifferentiated cells called blastema cells. These dermis-blastema cells show multipotency. Such so-called endogenous reprogramming of cell differentiation is one of the main targets of amphibian limb rege...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2013.05.010
更新日期：2013-09-01 00:00:00
abstract：:Hox genes encode transcription factors which provide positional information during morphogenesis along the body axis; genetic interaction among Hox genes is thought to be necessary for correct pattern formation. One of the most curious features of the 39 vertebrate Hox genes is that they form four clusters each compos...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9651
更新日期：2000-04-15 00:00:00
abstract：:We examined the development of epithelial Na+ conductance in 6- and 7-day post coitus (p.c.) preimplantation rabbit embryos using the whole-cell patch-clamp technique on dissociated rabbit trophectodermal cells and by immunocytochemical localization using a polyclonal antibody directed against subunits of an apical ep...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(91)90289-f
更新日期：1991-10-01 00:00:00
abstract：:Vertebrate pigment cells are derived from neural crest, a tissue that also forms most of the peripheral nervous system and a variety of ectomesenchymal cell types. Formation of pigment cells from multipotential neural crest cells involves a number of common developmental processes. Pigment cells must be specified; the...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9840
更新日期：2000-09-15 00:00:00
abstract：:Changes in the intracellular free calcium levels in the cortical region of cleaving Xenopus eggs were examined using semi-synthetic aequorin. We detected periodic oscillations in the free calcium levels accompanying the cleavage cycle as early as the first cleavage onward. The calcium levels began to increase at early...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1325
更新日期：1993-12-01 00:00:00
abstract：:This study evaluated Na/K-ATPase alpha 1- and alpha 3-subunit isoform polypeptide expression and localization during bovine preattachment development. Na/K-ATPase cation transport activity from the one-cell to blastocyst stage was also determined by measuring ouabain-sensitive 86Rb+ uptake. Both alpha1- and alpha 3-su...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1998.8874
更新日期：1998-05-01 00:00:00
abstract：:In the spawned Xenopus egg, germ plasm is found as cytoplasmic islands spread over a wide cortical region of the vegetal pole. However, by the blastula stage, the same material is found concentrated into a few large blastomeres at the floor of the blastocoel. Components of the germ plasm can be specifically labeled wi...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1142
更新日期：1993-06-01 00:00:00
abstract：:Dorsoventral specification of the zebrafish gastrula is governed by the functions of the dorsal shield, a region of the embryo functionally analogous to the amphibian Spemann organizer. We report that the bozozok locus encodes the transcription factor nieuwkoid/dharma, a homeobox gene with non-cell-autonomous organize...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9479
更新日期：1999-11-15 00:00:00
abstract：:Mesodermal cell migration during amphibian gastrulation is dependent on cellular interactions with fibronectin. One mechanism whereby cells bind fibronectin is through alpha v-containing integrin heterodimers. In order to investigate the role of alpha v in amphibian gastrulation, we have cloned the Pleurodeles homolog...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1995.1212
更新日期：1995-08-01 00:00:00
abstract：:Auxin is implicated throughout plant growth and development. Although the effects of this plant hormone have been recognized for more than a century, it is only in the past two decades that light has been shed on the molecular mechanisms that regulate auxin homeostasis, signaling, transport, crosstalk with other hormo...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2012.05.039
更新日期：2012-09-01 00:00:00
abstract：:We determined expression and function of a cell membrane protein in the developing chick retinotectal system identified by a monoclonal antibody (mAb 4H5) and the corresponding antiserum. Our data revealed that the protein shares a series of properties, including the N-terminal amino acid sequence, with a cell adhesio...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1994.1284
更新日期：1994-10-01 00:00:00
abstract：:The stability of sexual phenotype was examined in a single clone of Hydra oligactis males maintained at two culture temperatures, 18 and 22 degrees C. At these temperatures animals of this species do not reproduce sexually, but reproduce asexually by budding, and males and females are morphologically indistinguishable...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90311-8
更新日期：1986-10-01 00:00:00
abstract：:Missense mutations in the MYH3 gene encoding myosin heavy chain-embryonic (MyHC-embryonic) have been reported to cause two skeletal muscle contracture syndromes, Freeman Sheldon Syndrome (FSS) and Sheldon Hall Syndrome (SHS). Two residues in MyHC-embryonic that are most frequently mutated, leading to FSS, R672 and T17...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2019.02.017
更新日期：2019-05-15 00:00:00
abstract：:During development of Dictyostelium discoideum, the cellular specific activity of beta-glucosidase increases before aggregation, declines to low levels during pseudoplasmodium formation, and increases rapidly during culmination. In addition, two electrophoretically distinct isozymes of beta-glucosidase are present at ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(87)90407-6
更新日期：1987-10-01 00:00:00
abstract：:We describe the lineage and morphogenesis of neural plate cells in the ascidian, Ciona intestinalis, from reconstructed cell maps of embryos at 12-min intervals during and after neurulation, between 31 and 61% of embryonic development. Neurulation commences in a posterior to anterior wave following in the wake of the ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(88)90364-8
更新日期：1988-12-01 00:00:00
abstract：:In the zebrafish embryo, cells fated to give rise to the rostral brain move in a concerted fashion and retain tissue coherence during morphogenesis. We demonstrate here that Otx proteins have a dramatic effect on cell-cell interactions when expressed ectopically in the zebrafish embryo. Injection of zebrafish Otx1 or ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9771
更新日期：2000-07-15 00:00:00
abstract：:Maintaining tissue homeostasis is a critical process during infection and inflammation. Tissues with a high intrinsic turnover, such as the intestinal epithelium, must launch a rapid response to infections while simultaneously coordinating cell proliferation and differentiation decisions. In this study, we searched fo...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2014.12.017
更新日期：2015-03-15 00:00:00
abstract：:Climate change is multi-faceted, and includes changing concentrations of greenhouse gases in the atmosphere, rising temperatures, changes in precipitation patterns, and increasing frequency of extreme weather events. Here, we focus on the effects of rising atmospheric CO2 concentrations, rising temperature, and drough...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2016.07.023
更新日期：2016-11-01 00:00:00
abstract：:We have investigated oocyte development in Hydra vulgaris, a member of one of the oldest metazoan phyla. We show that oocyte determination involves a mechanism that establishes a subset of precursor interstitial cells competent to differentiate into oocytes. The oocyte is singled out from this subset and the competenc...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9790
更新日期：2000-08-15 00:00:00
abstract：:We have performed a detailed analysis of the expression pattern of the three gnathostome Otx classes in order to gain new insights into their functional evolution. Expression patterns were examined in the developing eye of a chondrichthyan, the dogfish, and an amniote, the chick, and compared with the capacity of para...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.11.019
更新日期：2005-02-15 00:00:00
abstract：:During epithelial development cells become polarized along their apical-basal axis and some epithelia also exhibit polarity in the plane of the tissue. Mutations in the gene encoding a Drosophila Pak family serine/threonine kinase, dPak, disrupt the follicular epithelium that covers developing egg chambers during ooge...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2007.02.034
更新日期：2007-05-15 00:00:00
abstract：:Zebrafish heart regeneration relies on the capacity of cardiomyocytes to proliferate upon injury. To understand the principles of this process after cryoinjury-induced myocardial infarction, we established a spatio-temporal map of mitotic cardiomyocytes and their differentiation dynamics. Immunodetection of phosphohis...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2014.12.002
更新日期：2015-03-01 00:00:00
abstract：:The correct assembly of junction components, such as E-cadherin and beta-catenin, into the zonula adherens is fundamental for the function of epithelia, both in flies and in vertebrates. In C. elegans, however, the cadherin-catenin system is not essential for general adhesion, raising the question as to the genetic ba...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.0113
更新日期：2001-02-01 00:00:00
abstract：:A fundamental issue during nervous system development is how individual cells are formed from the undefined precursors. Differentiated neurons and glia, two major cell types mediating neuronal function, are acquired from immature precursors via a series of explicit controls exerted by transcription factors such as pro...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2012.07.018
更新日期：2012-10-01 00:00:00
abstract：:During development, cells craft an impressive array of actin-based structures, mediating events as diverse as cytokinesis, apical constriction, and cell migration. One challenge is to determine how cells regulate actin assembly and disassembly to carry out these cell behaviors. During Drosophila oogenesis diverse cell...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2009.06.030
更新日期：2009-09-01 00:00:00
abstract：:Cell proliferation, growth and survival are three different basic processes which converge at determining a fundamental property -the size of an organism. Scalloped (Sd) is the first characterised transcriptional partner to Yorkie (Yki), the downstream effector of the Hippo pathway which is a highly potential and evol...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2017.10.016
更新日期：2017-12-15 00:00:00
abstract：:Hox genes of the Abdominal-B (Abd-B) class regulate gonadal development in diverse metazoans. Here we have investigated the role of the Abd-B homolog egl-5 in C. elegans gonadal development. Previous work showed that egl-5 is required male-specifically in the gonad and that mutant gonads are highly dysgenic and possib...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.05.516
更新日期：2010-08-15 00:00:00
abstract：:The contributions that control of cell proliferation and cell growth make to developmental regulation of organ and body size remain poorly explored, particularly with respect to endocycles in polyploid tissues. The epithelium of the marine chordate Oikopleura dioica is composed of a fixed number of cells grouped in te...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2002.0834
更新日期：2002-12-01 00:00:00
abstract：:Cells anchor to substrates by binding to extracellular matrix (ECM). In addition to this anchoring function however, cell-ECM binding is a mechanism for cells to sense their surroundings and to communicate and coordinate behaviour amongst themselves. Several ECM molecules and their receptors play essential roles in mu...
journal_title：Developmental biology
pub_type： 杂志文章,评审
doi：10.1016/j.ydbio.2011.03.015
更新日期：2011-06-15 00:00:00
abstract：:A functional ribosomal protein mRNA, encoding the 60 S subunit protein L1, has been synthesized in vitro using bacteriophage SP6 RNA polymerase. This mRNA directs the synthesis of a product indistinguishable from L1 protein purified from Xenopus ovarian ribosomes. Our results show that L1 synthesis in stage VI oocytes...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(88)90247-3
更新日期：1988-03-01 00:00:00
