abstract：:The accumulation of total RNA transcripts of 18 late embryo-abundant (Lea) gene families, each encoding two closely related Lea mRNAs, was measured in cotyledon total RNA during embryogenesis and germination of Gossypium hirsutum L. by RNA dot hybridization. Transcript abundance of the three storage protein families w...

journal_title：Developmental biology

authors： Galau GA,Bijaisoradat N,Hughes DW

更新日期：1987-09-01 00:00:00

abstract：:A fundamental feature of cartilage differentiation in the developing limb is the formation of a prechondrogenic cell condensation. An apparently similar process of prechondrogenic cell aggregation occurs in micromass cultures of limb bud mesenchyme with the formation of cellular aggregates which often differentiate in...

journal_title：Developmental biology

authors： Cottrill CP,Archer CW,Wolpert L

更新日期：1987-08-01 00:00:00

abstract：:Alterations in cAMP concentrations have been implicated in developmentally regulated gene expression in Dictyostelium. Using a variety of culture conditions to control the metabolism of cAMP during cytodifferentiation, I have examined the role of the cyclic nucleotide in development. Conditions which allow intracellul...

journal_title：Developmental biology

authors： Kimmel AR

更新日期：1987-07-01 00:00:00

abstract：:We have compared the ability of uncapacitated, capacitated acrosome intact, and acrosome-reacted hamster sperm to penetrate the cumulus and corona radiata of fresh hamster oocyte-cumulus complexes (OCC) in vitro. This was done using physiological numbers (1-20) of sperm so that cumulus and corona radiata cells did not...

journal_title：Developmental biology

authors： Corselli J,Talbot P

更新日期：1987-07-01 00:00:00

abstract：:Cells from newborn rat hindlimb show greatly enhanced myogenicity when grown on surfaces coated with poly-L-lysine followed by laminin (PLL/Lam) instead of the collagens routinely used. Coating with poly-L-lysine (PLL) alone or with PLL followed by collagen does not enhance myogenicity. Both myogenic and nonmyogenic c...

journal_title：Developmental biology

authors： Foster RF,Thompson JM,Kaufman SJ

更新日期：1987-07-01 00:00:00

abstract：:The term "transdifferentiation" has been used to describe the apparent phenotypic conversion of chick embryo neural retina Müller glial cells into lens-like cells in vitro. This phenotypic conversion is characterized by expression of such lens-specific proteins as delta crystallin and has been viewed as an example of ...

journal_title：Developmental biology

authors： Linser PJ,Irvin CK

更新日期：1987-06-01 00:00:00

abstract：:Oocyte maturation (meiosis reinitiation) in starfish is induced by the natural hormone 1-methyladenine (1-MeAde). Oocytes of Evasterias troschelii contain 0.43 pmole cyclic AMP/mg protein and 0.47 pmole cyclic GMP/mg protein. Upon stimulation by 1-MeAde the oocytes undergo a moderate (10-30%) decrease in their cAMP co...

journal_title：Developmental biology

authors： Meijer L,Zarutskie P

更新日期：1987-06-01 00:00:00

abstract：:A fusion gene construct containing the bacterial chloramphenicol acetyltransferase (CAT) gene under the control of CyIIIa actin gene regulatory sequences was injected into unfertilized eggs of the urchin Strongylocentrotus purpuratus, and early pluteus stage embryos that developed from these eggs were fixed and sectio...

journal_title：Developmental biology

authors： Hough-Evans BR,Franks RR,Cameron RA,Britten RJ,Davidson EH

更新日期：1987-06-01 00:00:00

abstract：:The regulation of Sertoli cell transferrin and sulfated glycoprotein-2 (SGP-2) mRNA levels by vitamin A was studied in vitamin A deficient rats. Vitamin A deficiency differentially affected the levels of these mRNAs. Sertoli cells from vitamin A deficient rats contained 3-fold less transferrin mRNA and 1.8-fold more S...

journal_title：Developmental biology

authors： Hugly S,Griswold M

更新日期：1987-06-01 00:00:00

abstract：:Mammalian sperm-egg adhesion occurs when sperm bind to the zona pellucida of the egg. In this study with guinea pig gametes, we have asked if sperm can initiate binding to the zona before and after the acrosome reaction and if the sperm surface protein PH-20 is involved in the binding at these two stages. Sperm bindin...

journal_title：Developmental biology

authors： Myles DG,Hyatt H,Primakoff P

更新日期：1987-06-01 00:00:00

abstract：:Recent results have demonstrated the occurrence of mRNA cap methylation in the sea urchin embryo following fertilization. It has been suggested that this methylation event is responsible for the translational activation of maternal histone mRNAs in these embryos. We have used aphidicolin, an effective inhibitor of bot...

journal_title：Developmental biology

authors： Showman RM,Leaf DS,Anstrom JA,Raff RA

更新日期：1987-05-01 00:00:00

abstract：:We have reported previously that sequence-specific adenylations and deadenylations accompany changes in the translation of maternal mRNA following fertilization of Spisula oocytes (E.T. Rosenthal, T.R. Tansey, and J.V. Ruderman, 1983, J. Mol. Biol. 166, 309-327). The data presented here confirm and extend those observ...

journal_title：Developmental biology

authors： Rosenthal ET,Ruderman JV

更新日期：1987-05-01 00:00:00

abstract：:The segmental origin and migratory pattern of neural crest cells at the trunk level of avian embryos was studied, with special emphasis on the formation of the dorsal root ganglia (DRG) which organize in the anterior half of each somite. Neural crest cells were visualized using the quail-chick marker and HNK-1 immunof...

journal_title：Developmental biology

authors： Teillet MA,Kalcheim C,Le Douarin NM

更新日期：1987-04-01 00:00:00

abstract：:To identify guanine nucleotide binding proteins (G-proteins) in sea urchin eggs and to investigate their role in signal transduction at fertilization, we used cholera toxin (CTX) and pertussis toxin (PTX), which catalyze the specific ADP-ribosylation of G-proteins. Cell surface complex, consisting of plasma membranes ...

journal_title：Developmental biology

authors： Turner PR,Jaffe LA,Primakoff P

更新日期：1987-04-01 00:00:00

abstract：:The rabbit ovum seldom becomes polyspermic despite the presence of supernumerary sperm with easy access to the ovum plasma membrane. The purpose of this study was to characterize the role of ovum investments in blocking polyspermy. Ova were inseminated with capacitated sperm in vitro and were fertilized. Early stages ...

journal_title：Developmental biology

authors： McCulloh DH,Wall RJ,Levitan H

更新日期：1987-04-01 00:00:00

abstract：:Previous experiments have demonstrated that in the septo-hippocampal system choline acetyltransferase (ChAT) is induced by nerve growth factor (NGF) (Gnahn et al. (1983) Dev. Brain Res. 9, 45-52) and that hippocampal NGF and mRNANGF levels are correlated with the density of cholinergic innervation (Korsching et al. (1...

journal_title：Developmental biology

authors： Auburger G,Heumann R,Hellweg R,Korsching S,Thoenen H

更新日期：1987-04-01 00:00:00

abstract：:N-cadherin is a Ca2+-dependent cell-cell adhesion molecule, which was identified in brain cells of mouse and chicken. In the present study, we have determined the pattern of expression of N-cadherin in chicken embryos at various stages by means of immunohistochemistry. N-cadherin was expressed in cells derived from al...

journal_title：Developmental biology

authors： Hatta K,Takagi S,Fujisawa H,Takeichi M

更新日期：1987-03-01 00:00:00

abstract：:Monoclonal antibody 4F4, which was raised against a cell suspension of embryonic rat forebrain, reacts with acidic glycolipids and several high-molecular-weight glycoproteins in rodent brain. The major reactive glycolipid is maximally expressed at Embryonic Day 15 (E15) and is no longer detectable at Postnatal Day 14 ...

journal_title：Developmental biology

authors： Schwarting GA,Jungalwala FB,Chou DK,Boyer AM,Yamamoto M

更新日期：1987-03-01 00:00:00

abstract：:Alkaline phosphatase (AP) activity is expressed in the endodermal cell lineage of ascidian embryos beginning at gastrulation. AP expression is resistant to levels of actinomycin D which completely suppress the appearance of other tissue-specific enzyme and morphological markers including acetylcholinesterase (AchE), a...

journal_title：Developmental biology

authors： Bates WR,Jeffery WR

更新日期：1987-02-01 00:00:00

abstract：:The source of neurite outgrowth in explant cultures of normal adult Apteronotus spinal cord was examined. Explants which contained the central region of spinal cord, including ependyma, showed neurite outgrowth in culture. Explants which did not contain ependyma showed no neurite outgrowth. It is concluded that the ep...

journal_title：Developmental biology

authors： Anderson MJ,Waxman SG,Fong HL

更新日期：1987-02-01 00:00:00

abstract：:Developmental effects of six mutations in the gene encoding the majority of alpha-tubulin in all tissues at all stages of Drosophila melanogaster development have been examined. All six alleles produce at least partially stable alpha 84B protein. In genetic assays, two of these alleles approximate the null condition. ...

journal_title：Developmental biology

authors： Matthews KA,Kaufman TC

更新日期：1987-01-01 00:00:00

abstract：:Using gene-specific probes derived from four mouse gamma-crystallin cDNAs, we have examined the regulation of different members of the mouse gamma-crystallin gene family during lens development. Our analysis revealed that, while the different gamma-crystallin genes appear to be coordinately activated during embryogene...

journal_title：Developmental biology

authors： Murer-Orlando M,Paterson RC,Lok S,Tsui LC,Breitman ML

更新日期：1987-01-01 00:00:00

abstract：:Selected stages of the developing chicken cornea have been examined for type VI collagen, employing monoclonal antibodies specific for this molecule. By immunofluorescence, the molecule is not detectable in 5 1/2 day corneas, a time at which the epithelial-derived, acellular primary stroma is the only corneal matrix p...

journal_title：Developmental biology

authors： Linsenmayer TF,Bruns RR,Mentzer A,Mayne R

更新日期：1986-12-01 00:00:00

abstract：:Chick sensory neurons grow to their correct targets in the hindlimb from the outset during normal development and following various experimental manipulations. This may result not because sensory neurons respond to specific limb-derived cues, but because they interact in some way with motoneurons which are responsive ...

journal_title：Developmental biology

authors： Landmesser L,Honig MG

更新日期：1986-12-01 00:00:00

abstract：:The axonal functions that act in the formation of the neuronal network have been shown to occur in close interdependence with the tissue that surrounds the growing axons. However, little is known about the molecular building blocks underlying axonal functions, although more than 400 axonal proteins have been identifie...

journal_title：Developmental biology

authors： Sonderegger P,Lemkin PF,Lipkin LE,Nelson PG

更新日期：1986-11-01 00:00:00

abstract：:Analysis of 262 transgenic mouse pedigrees suggests that about 30% of the mice produced by microinjection of plasmids into pronuclei are mosaic in the germline. This implies that in these lines integration of the foreign DNA occurred after the first round of chromosomal DNA replication. In mosaics resulting from delay...

journal_title：Developmental biology

authors： Wilkie TM,Brinster RL,Palmiter RD

更新日期：1986-11-01 00:00:00

abstract：:The sea urchin sperm receptor isolated from the eggs of Strongylocentrotus purpuratus is a high molecular weight proteoglycan-like molecule. Previous studies in our laboratory suggested that the sperm receptor has two functional components, glycosaminoglycan chains that are responsible for sperm binding and polypeptid...

journal_title：Developmental biology

authors： Ruiz-Bravo N,Lennarz WJ

更新日期：1986-11-01 00:00:00

abstract：:To analyze the molecular mechanism of the limb pattern formation, we have tried to make monoclonal antibodies against antigens from chick limb buds. We obtained one antibody named AV-1 which recognized a specific region of chick limb buds. AV-1 reacted with the distal portion of the anteroventral mesoderm of only deve...

journal_title：Developmental biology

authors： Ohsugi K,Ide H

更新日期：1986-10-01 00:00:00

abstract：:Three myogenic clonal cell lines were isolated from C3H 10T1/2 C18 cells (10T1/2) treated with 5-azacytidine (5-aza-CR). These lines reproducibly underwent fusion at confluence into functional myotubes capable of contracting in response to acetylcholine. The degree of fusion could be increased two- to threefold if the...

journal_title：Developmental biology

authors： Liu L,Harrington M,Jones PA

更新日期：1986-10-01 00:00:00

abstract：:A number of genes encoding developmentally regulated mRNAs in the cellular slime mold, Dictyostelium discoideum, have been described. Many of these are regulated by cAMP. Analysis of the earliest time at which elevated levels of cAMP can induce the expression of these mRNAs reveals a more complex pattern of regulation...

journal_title：Developmental biology

authors： Oyama M,Blumberg DD

更新日期：1986-10-01 00:00:00

abstract：:Previous studies from this laboratory (M. Bronner-Fraser (1985). J. Cell Biol. 101, 610) have demonstrated that an antibody to a cell surface receptor complex caused alterations in avian neural crest cell migration. Here, these observations are extended to examine the distribution and persistency of injected antibody,...

journal_title：Developmental biology

authors： Bronner-Fraser M

更新日期：1986-10-01 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

authors： Littlefield CL

更新日期：1986-10-01 00:00:00

abstract：:Two 80- to 100-kb chromosomal replicons containing clustered chorion genes amplify in the ovarian follicle cells during the final 22 hr of Drosophila oogenesis. We have studied the relationship between amplification and transcription within one of these domains, located at 7E10-7F3,4 on the X chromosome. A tandem clus...

journal_title：Developmental biology

authors： Parks S,Wakimoto B,Spradling A

更新日期：1986-09-01 00:00:00

abstract：:We have investigated the accumulation and adenylation of the maternal mRNA during oogenesis in the oocytes of the marine worm Urechis caupo. The analysis, using in vitro translation and cDNA probes to assay for specific mRNAs, demonstrates that different maternal mRNAs accumulate with different patterns during oogenes...

journal_title：Developmental biology

authors： Rosenthal ET,Wilt FH

更新日期：1986-09-01 00:00:00

abstract：:The cytoplasmic factor responsible for chromosome condensation was introduced into mouse zygotes at different times after fertilization by fusion of the zygotes with metaphase I oocytes. In 72% of heterokaryons obtained after fusion of early zygotes (14-18 hr post-human chorionic gonadotrophin (HCG) with oocytes, the ...

journal_title：Developmental biology

authors： Bałakier H,Masui Y

更新日期：1986-09-01 00:00:00

abstract：:Chondrogenesis of mesenchymal cells from the frontonasal mass, mandibles and maxillae of stage-24 chick embryos has been investigated in micromass (high-density) cultures. Distinct differences in the amount and pattern of cartilage differentiation are found. In cultures of frontonasal mass cells, a central sheet of ca...

journal_title：Developmental biology

authors： Wedden SE,Lewin-Smith MR,Tickle C

更新日期：1986-09-01 00:00:00

abstract：:The plasticity of nerve cells expressing the neuropeptide FMRFamide was examined in adult hydra. Using a whole-mount technique with indirect immunofluorescence, the spatial pattern of neurons showing FMRFamide-like immunoreactivity (FLI) was visualized. These neurons were located in the tentacles, hypostome, and pedun...

journal_title：Developmental biology

authors： Koizumi O,Bode HR

更新日期：1986-08-01 00:00:00

abstract：:The distribution and ontogeny of four neuropeptides in developing chick lumbosacral sensory and sympathetic ganglia were studied using immunohistochemical techniques. Antibodies to two of these peptides, substance P (SP) and calcitonin gene-related peptide (CGRP), stained small neurons in the medial part of the dorsal...

journal_title：Developmental biology

authors： New HV,Mudge AW

更新日期：1986-08-01 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

authors： Shiokawa K,Sameshima M,Tashiro K,Miura T,Nakakura N,Yamana K

更新日期：1986-08-01 00:00:00

abstract：:Vertebrate voluntary muscles are composed of myotubes and connective tissue cells. These two cell types have different embryonic origins: myogenic cells arise from paraxial mesoderm, while in the head many of the connective tissues are formed by neural crest cells. The objective of this research was to study interacti...

journal_title：Developmental biology

authors： Noden DM

更新日期：1986-08-01 00:00:00