The Amphibian Egg Cortex in Fertilization and Early Development

Fast block to polyspermy in sea urchin eggs is electrically mediated

1976 • 456 citations

Is calcium ionophore a universal activator for unfertilised eggs?

1974 • 388 citations

The isolation of intact cortical granules from sea urchin eggs: Calcium ions trigger granule discharge

1975 • 350 citations

Properties and functions of the surface coat in amphibian embryos

1943 • 320 citations

The “Organization Center” of the Amphibian Embryo: Its Origin, Spatial Organization, and Morphogenetic Action

1973 • 296 citations

Formation and structure of the fertilization envelope in Xenopus laevis

1974 • 214 citations

AN ELECTRON MICROSCOPE STUDY OF SPERMATID DIFFERENTIATION IN THE TOAD, BUFO ARENARUM HENSEL

1956 • 205 citations

Cortical granule distribution and cell surface characteristics in mouse eggs

1977 • 195 citations

Changes in the topography of the sea urchin egg after fertilization.

1976 • 180 citations

Actin-like filaments in the cleavage furrow of newt egg*

1971 • 153 citations

Biology of Amphibian Tumors

1969 • 151 citations

Agglutination of Jelly Coat and Cortical Granule Components and the Block to Polyspermy in the Amphibian Xenopus laevis

1974 • 141 citations

Surface area change at fertilization: Resorption of the mosaic membrane

1979 • 134 citations

Distribution and mode of arrangement of microfilamentous structures and actin in the cortex of the amphibian oocyte.

1976 • 134 citations

The Mechanism of Cell Division in the Cleavage of the Newt’s Egg

1955 • 134 citations

Electrically mediated fast polyspermy block in eggs of the marine worm, Urechis caupo.

1979 • 125 citations

Ionophore A23187, calcium and contractility in frog eggs

1974 • 125 citations

Site of sperm entry and a cortical contraction associated with egg activation in the frog Rana pipens

1975 • 122 citations

Chapter 4 Origin and Establishment of Embryonic Polar Axes in Amphibian Development

1977 • 120 citations

Electrical Characteristics and Activation Potential of Bufo Eggs

1959 • 115 citations

Elektronenmikroskopische und histochemische Studien �ber die Oogenese der Amphibieneizelle

1962 • 114 citations

[Electron microscopic and histochemical studies on the oogenesis of amphibia egg cells].

1962 • 114 citations

Evidence that the fertilization envelope blocks sperm entry in eggs of Xenopus laevis: Interaction of sperm with isolated envelopes

1976 • 110 citations

Contractile responses at the surface of an amphibian egg.

1970 • 106 citations

Destruction of components of the neural induction system of the amphibian egg with ultraviolet irradiation

1977 • 91 citations

The amphibian gray crescent region—A site of developmental information?

1972 • 90 citations

Ultrastructural observations on cortical endoplasmic reticulum and on residual cortical granules in the egg of Xenopus laevis

1977 • 86 citations

"Cleavage" and cortical granule breakdown in Rana pipiens oocytes induced by direct microinjection of calcium.

1976 • 83 citations

The cortical response in Xenopus laevis ova

1974 • 78 citations

Cortical wound healing in the amphibian egg: an electron microscopical study

1972 • 75 citations

CORTICAL CHANGES IN GROWING OOCYTES AND IN FERTILIZED OR PRICKED EGGS OF RANA PIPIENS

1967 • 75 citations

The Morphogenetic Role of the Cortex of the Amphibian Egg

1964 • 71 citations

Elektronenmikroskopische Untersuchungen der strukturellen Ver�nderungen im Rindenbereich des Amphibieneies im Ovar und nach der Befruchtung

1961 • 69 citations

Association of an ultraviolet irradiation sensitive cytoplasmic localization with the future dorsal side of the amphibian egg

1975 • 68 citations

An immunocytochemical localization of the cortical granule lectin in fertilized and unfertilized eggs of xenopus laevis

1978 • 65 citations

The Site of Spermatozoon Entrance in the Unfertilized Egg of Discoglossus pictus (Anura): An Electron Microscope Study

1975 • 63 citations

The presence of sperm‐specific surface isoantigens on the egg following fertilization

1977 • 61 citations

Formation of the amphibian grey crescent: Effects of colchicine and cytochalasin B

1978 • 60 citations

Changes of the external and internal pigment pattern upon fertilization in the egg of Xenopus laevis

1978 • 58 citations

Morphogenetic Interactions before Gastrulation in the Amphibian, Xenopus laevis—the Cortical Field

1962 • 58 citations

Chapter 5 An Old Enigma: the Gray Crescent of Amphibian Eggs

1977 • 57 citations

WAVE OF STIFFNESS PROPAGATING ALONG THE SURFACE OF THE NEWT EGG DURING CLEAVAGE

1974 • 53 citations

Beiträge zur Entwickelungsmechanik des Embryo

1887 • 53 citations

The ultrastructure of testicular spermatozoa in two species of Rana

1971 • 51 citations

Cortical Grafting inXenopus laevis

1960 • 51 citations

Ultrastructural and lectin binding changes during the formation of the animal dimple in oocytes of Discoglossus pictus (Anura)

1977 • 50 citations

On the possibility of sperm aster involvement in dorso-ventral polarization and pronuclear migration in the amphibian egg

1977 • 50 citations

Morphology of the site of sperm entry on the frog egg

1978 • 49 citations

Morphological changes of the surface of the egg of Xenopus laevis in the course of development

1975 • 48 citations

Morphological changes of the surface of the eggs of Xenopus laevis in the course of development. 2. Cytokinesis and early cleavage

1976 • 47 citations

The pattern of concanavalin a-binding sites during the early development of xenopus laevis

1974 • 46 citations

Microfilaments in the external surface layer of the early amphibian embryo.

1975 • 43 citations

La fécondation chez le triton pleurodèle

1977 • 43 citations

Cinematographic observation of an ?activation wave? (AW) on the locally inseminated egg ofXenopus laevis

1979 • 42 citations

EFFECTS OF MEDIA OF DIFFERENT IONIC COMPOSITION ON THE ACTIVATION POTENTIAL OF ANURAN EGG CELLS

1972 • 42 citations

VIII. Researches on the impregnation of the ovum in the amphibia; and on the early stages of development of the embryo. ( third series.)

1854 • 36 citations

Regional Morphological and Cytochemical Differentiation in the Fertilized Egg of Discoglossus pictus (Anura)

1975 • 35 citations

POLARITIES, CELL DIFFERENTIATION AND PRIMARY INDUCTION IN THE AMPHIBIAN EMBRYO

1978 • 35 citations

Cinematographic Observation of ?Post-Fertilization waves? (PFW) on the zygote ofXenopus laevis

1977 • 33 citations

Factors Responsible for the Abnormal Development of Embryos Obtained by Nuclear Transplantation inXenopus laevis

1960 • 32 citations

Dense material associated with wound closure in the axolotl egg (A. mexicanum)

1971 • 31 citations

ACROSOMIC REACTION AND PROTEOLYTIC ACTIVITY IN THE SPERMATOZOA OF AN ANURAN AMPHIBIAN, LEPTODACTYLUS CHAQUENSIS (CEI)

1977 • 30 citations

Correction of developmental abnormalities resulting from localized ultra-violet irradiation of an amphibian egg

1974 • 29 citations

The ultrastructure of the cortical cytoplasm in the unfertilized egg and first cleavage zygote of Xenopus laevis

1967 • 27 citations

La fécondation chez le triton pleurodèle

1977 • 26 citations

The Cortex of Xenopus laevis Embryos: Regional Differences in Composition and Biological Activity

1971 • 24 citations

The plasma-membrane IMP pattern as related to animal/vegetal polarity in the amphibian egg

1978 • 24 citations

Symmetrization in the amphibian egg by disrupted sperm cells

1976 • 21 citations

Subcellular localisation of some acid hydrolases Triturus cristatus spermatozoa

1966 • 21 citations

Morphogenesis in the amphibian embryo fertilization and blastula formation

1965 • 16 citations

A regional change in the rigidity of the cortex of the egg ofRana nigromaculatafollowing extrusion of the second polar body

1967 • 15 citations

A physiological interpretation of the mechanism involved in the determination of bilateral symmetry in amphibian embryos.

1958 • 14 citations

Permeability changes in fertilized and activated amphibian eggs

1962 • 12 citations

Concanavalin A binding to oocytes and eggs of

1977 • 7 citations

L'activiation de l'oeuf de Xenopus laevis laevis

1965 • 6 citations