Abstract：
:Immature, Stage VI oocytes of Xenopus laevis fail to activate (i.e., to propagate a cortical reaction and elevate a fertilization envelope) when pricked or exposed to A23187. We determined the times during maturation when immature oocytes treated with progesterone in vitro developed the capacity to respond to pricking and to ionophore. Responsiveness to ionophore first appears at about 3.5-4.5 hr after progesterone treatment; all oocytes are activated by 8-9 hr after progesterone. The capacity to respond to pricking appears about 1.0-1.5 hr after first signs of ionophore responsiveness. We examined the cortical endoplasmic reticulum (CER) by TEM to determine whether the morphology of this component could be correlated with the development of responsiveness during maturation. Fully mature oocytes exhibit an extensive CER that (1) forms a "shell" around most cortical granules, (2) appears to interconnect cortical granules, and (3) forms junctions with the plasma membrane. The CER-plasma membrane junctions are especially obvious in preparations of isolated cortex. The elaborate CER is not present in immature oocytes. It first appears during maturation of progesterone-treated oocytes at 4.5-5.0 hr, coincident with the time when maturing oocytes develop their responsiveness to ionophore and to pricking. This temporal correlation is consistent with the hypothesis that the CER is one of the components required for regulation of intracellular free calcium in oocytes.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Charbonneau M,Grey RDdoi
10.1016/0012-1606(84)90177-5subject
Has Abstractpub_date
1984-03-01 00:00:00pages
90-7issue
1eissn
0012-1606issn
1095-564Xpii
0012-1606(84)90177-5journal_volume
102pub_type
杂志文章abstract：:Early (alpha) histone genes are one of several histone gene families in the sea urchin genome. They are expressed at high levels in blastula-stage embryos and are inactivated by the early gastrula stage. By microinjecting mutant early H2B genes into sea urchin zygotes and monitoring their transcriptional activity in b...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(92)90248-f
更新日期：1992-04-01 00:00:00
abstract：:The development of neural crest-derived melanocytes, as well as haematopoietic and germ cells, is affected by mutations of the Kit and Mgf genes, which lead to dominant spotting (W) or steel (Sl) phenotypes. Mgf codes for the ligand of the receptor tyrosine kinase encoded by the Kit locus. KitW-v, a point mutation exe...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1997.8738
更新日期：1997-12-01 00:00:00
abstract：:In the absence of maternal expression of the pecanex gene, the embryo develops severe hyperneuralization similar to that characteristic of Notch mutant embryos. We have extended a previous molecular analysis of the chromosomal interval that encompasses pecanex by using additional deficiencies to localize the locus on ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(89)90127-9
更新日期：1989-11-01 00:00:00
abstract：:Much of boundary formation during development remains to be understood, despite being a defining feature of many animal taxa. Axial patterning of Hydra, a member of the ancient phylum Cnidaria which diverged prior to the bilaterian radiation, involves a steady-state of production and loss of tissue, and is dependent o...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2019.11.006
更新日期：2020-02-15 00:00:00
abstract：:Proper calcium channel and insulin signaling are essential for normal brain development. Leaner mice with a mutation in the P/Q-type voltage-gated calcium channel, Cacna1a, develop cerebellar atrophy and mutations in the homologous human gene are associated with increased migraine and seizure tendency. Similarly, abno...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.06.005
更新日期：2006-10-01 00:00:00
abstract：:Bullous pemphigoid antisera and monoclonal antibodies to type VII collagen were used to localize hemidesmosomes and anchoring fibrils, respectively, in tissues of developing eyes and healing corneal wounds of New Zealand white rabbits. In the 17-day fetal rabbit eye, both antibodies colocalize to the epithelial-stroma...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(88)90136-4
更新日期：1988-04-01 00:00:00
abstract：:The mammalian kidney consists of an array of tubules connected to a ductal system that collectively function to control water/salt balance and to remove waste from the organisms' circulatory system. During mammalian embryogenesis, three kidney structures form within the intermediate mesoderm. The two most anterior str...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.03.044
更新日期：2008-07-15 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：:This study reports a morphological, skeletal, and molecular characterization of the supernumerary limbs induced by systemic administration of all-trans retinoic acid to egg-cylinder stage mouse embryos. As initially described by Rutledge et al. (Proc. Natl. Acad. Sci. USA 91, 5436, 1994), we have found that oral admin...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1996.0126
更新日期：1996-06-15 00:00:00
abstract：:Non-syndromic mitral valve prolapse (MVP) is the most common heart valve disease affecting 2.4% of the population. Recent studies have identified genetic defects in primary cilia as causative to MVP, although the mechanism of their action is currently unknown. Using a series of gene inactivation approaches, we define ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2020.03.003
更新日期：2020-07-01 00:00:00
abstract：:Border Cells in the Drosophila ovaries are a useful genetic model for understanding the molecular events underlying epithelial cell motility. During stage 9 of egg chamber development they detach from neighboring stretched cells and migrate between the nurse cells to reach the oocyte. RNAi screening allowed us to iden...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2012.05.017
更新日期：2012-08-01 00:00:00
abstract：:Vertebrate neural tube formation involves two distinct morphogenetic events--convergent extension (CE) driven by mediolateral cell intercalation, and bending of the neural plate driven largely by cellular apical constriction. However, the cellular and molecular biomechanics of these processes are not understood. Here,...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.12.009
更新日期：2009-03-15 00:00:00
abstract：:During the last stages of fetal life, the immature epithelial cells of the rat lung alveolus develop the properties of mature type 2 cells. Adult type 2 cells rapidly lose these same properties when isolated and maintained in cell culture. We have examined the synthesis of cytokeratin proteins by adult type 2 cells as...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(88)90396-x
更新日期：1988-10-01 00:00:00
abstract：:The genetic and developmental bases for trait expression and variation in adults are largely unknown. One system in which genes and cell behaviors underlying adult traits can be elucidated is the larval-to-adult transformation of zebrafish, Danio rerio. Metamorphosis in this and many other teleost fishes resembles amp...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/s0012-1606(03)00015-0
更新日期：2003-04-15 00:00:00
abstract：:COUP-TFII (also known as Nr2f2), a member of the nuclear orphan receptor superfamily, is expressed in several regions of the central nervous system (CNS), including the ventral thalamus, hypothalamus, midbrain, pons, and spinal cord. To address the function of COUP-TFII in the CNS, we generated conditional COUP-TFII k...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2008.11.001
更新日期：2009-02-15 00:00:00
abstract：:The relative sizes of the various structures in Hydra attenuata were compared over a broad range of animal sizes to determine in detail the ability to regulate proportions during regeneration. The three components of the head, namely hypostome, tentacles, and tentacle zone from which the tentacles emerge, the body col...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(84)90318-x
更新日期：1984-06-01 00:00:00
abstract：:Retinoic acid (RA) plays a critical role in neural patterning and organogenesis in the vertebrate embryo. Here we characterize a mutant of the zebrafish named giraffe (gir) in which the gene for the RA-degrading enzyme Cyp26a1 is mutated. The gir mutant displayed patterning defects in multiple organs including the com...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.11.023
更新日期：2005-02-15 00:00:00
abstract：:Smad4 is defined as the common-mediator Smad (co-Smad) required for transducing signals for all TGF-beta superfamily members. This paper describes two Smad4s in Xenopus: XSmad4alpha, which is probably the Xenopus orthologue of human Smad4, and a distinct family member, XSmad4beta, which differs primarily at the extrem...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1999.9430
更新日期：1999-10-15 00:00:00
abstract：:High osmolarity, bound water, and hydrostatic pressure contribute to notochord mechanics and its morphogenesis into the nucleus pulposus (NP) compartment of the intervertebral disc. Indeed, the osmoadaptive transcription factor, nuclear factor of activated T-cells 5 (NFAT5 aka TonEBP), is robustly expressed by residen...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2019.07.004
更新日期：2019-11-15 00:00:00
abstract：:Epigenetic gene control is involved in mechanisms of development. Little is known about the cooperation of nuclear and chromatin events in programmed differentiation from mouse embryonic stem cells (ESC). To address this, Oct3/4-positive ESC and differentiated progenies, Sox1-positive neural precursor cells (NPC) and ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2006.04.450
更新日期：2006-10-15 00:00:00
abstract：:The fate of bacteriophage lambda-DNA was examined after injection into the fertilized eggs of Xenopus laevis. Injection of a large amount of lambda-DNA (ca. 24 ng) into a fertilized Xenopus egg induced the formation around the injected DNA of a giant nucleus-like structure which was surrounded by an apparently normal ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90155-7
更新日期：1986-08-01 00:00:00
abstract：:Similar amounts of expression of a luciferase reporter gene that is driven by the SV40 early promoter are detected in G2 of 1-cell mouse embryo following injection of the male pronucleus in either early or mid/late S. No luciferase activity is observed when the male pronucleus is injected in early S and the embryos an...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1993.1101
更新日期：1993-04-01 00:00:00
abstract：:FoxC, FoxF, FoxL1 and FoxQ1 genes have been shown to be clustered in some animal genomes, with mesendodermal expression hypothesised as a selective force maintaining cluster integrity. Hypotheses are, however, constrained by a lack of data from the Lophotrochozoa. Here we characterise members of the FoxC, FoxF, FoxL1 ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2010.01.015
更新日期：2010-04-15 00:00:00
abstract：:Immunocytochemical studies were performed to determine if denervated rodent iris produces nerve growth factor (NGF) in a form chemically similar to that of the 7S NGF complex in mouse submandibular glands. Antisera to the alpha, beta, and gamma subunits of 7S NGF were raised in rabbits and characterized on immunoblots...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(86)90201-0
更新日期：1986-04-01 00:00:00
abstract：:Full-grown Xenopus oocytes, Stage VI (1200-1300 microns), undergo meiotic maturation when exposed to progesterone. Smaller stage IV (800 microns) and stage V (1000 microns) oocytes remain in prophase arrest when exposed to this steroid. The larger stage VI oocytes undergo an intracellular alkalization from 7.2 to 7.6,...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/0012-1606(84)90288-4
更新日期：1984-10-01 00:00:00
abstract：:Syndecan-3 is one of four identified members of a family of transmembrane proteoglycans (the syndecans) that possess highly similar cytoplasmic and transmembrane domains and may function as extracellular matrix receptors and/or low affinity receptors for signaling molecules such as FGF. We previously reported the clon...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.1995.1093
更新日期：1995-04-01 00:00:00
abstract：:The development of intrinsic ganglia, comprised of neurons and glia cells that innervate airway smooth muscle, is a recognized component of the growing lung. However, the embryological origin of these neurons and glia is unclear. The lung buds develop as an outgrowth of the foregut, which contains migrating neural cre...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2004.09.006
更新日期：2005-01-01 00:00:00
abstract：:Melanoblasts, the precursors of the pigment-producing cells of the skin and hair, are derived from the neural crest and migrate to the skin around 12 days of gestation in the mouse. In adult mice almost all the melanoblasts are confined to the hair follicles except for the epidermal layers of nonhairy skin. The recept...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2000.9856
更新日期：2000-09-15 00:00:00
abstract：:During anuran metamorphosis, larval-type myotubes in both trunk and tail are removed by apoptosis, and only trunk muscles are replaced by newly formed adult-type myotubes. In the present study, we clarified the regulatory mechanisms for specific developmental fates of adult and larval muscles. Two distinct (adult and ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1006/dbio.2002.0800
更新日期：2002-11-01 00:00:00
abstract：:Dictyostelium discoideum amoebas display colonial multicellularity where starving amoebas aggregate to form migrating slugs and fruiting bodies consisting of spores and three supporting cell types. To resolve the cell signalling mechanism that control sporulation, we use insertional mutagenesis of amoebas transformed ...
journal_title：Developmental biology
pub_type： 杂志文章
doi：10.1016/j.ydbio.2019.04.017
更新日期：2019-08-15 00:00:00
