Fucus
Mostrando 13-24 de 36 artigos, teses e dissertações.
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13. Sequence of actin cDNA from Fucus disticus.
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14. Fucus Embryogenesis: A Model to Study the Establishment of Polarity.
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15. DO FUCUS EGGS INTERACT THROUGH A CO2-pH GRADIENT?
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16. Persistent Rhythms of O2-Consumption in Potatoes, Carrots and the Seaweed, Fucus. 12
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17. Photopolarization of the Fucus sp. Zygote by Blue Light Involves a Plasma Membrane Redox Chain.
Zygotes of fucoid algae are photopolarized by unidirectional blue light (BL). Polar axes are formed, fixed, and expressed by germination of a rhizoid. Hexacyanoferrate(III) ions (HCF) specifically inhibit transduction of the BL signal. HCF reduction by Fucus sp. zygotes occurs on the outer surface of the plasma membrane at higher rates in BL than in dark. Th
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18. The effect of Fucus vesiculosus, an edible brown seaweed, upon menstrual cycle length and hormonal status in three pre-menopausal women: a case report
BioMed Central.
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19. Spatiotemporal Patterning of Reactive Oxygen Production and Ca2+ Wave Propagation in Fucus Rhizoid Cells
Both Ca2+ and reactive oxygen species (ROS) play critical signaling roles in plant responses to biotic and abiotic stress. However, the positioning of Ca2+ and ROS (in particular H2O2) after a stress stimulus and their subcellular interactions are poorly understood. Moreover, although information can be encoded in different patterns of cellular Ca2+ signals,
American Society of Plant Biologists.
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20. Ca2+ and Calmodulin Dynamics during Photopolarization in Fucus serratus Zygotes.
The role of Ca2+ in zygote polarization in fucoid algae (Fucus, Ascophyllum, and Pelvetia species) zygote polarization is controversial. Using a local source of Fucus serratus, we established that zygotes form a polar axis relative to unilateral light (photopolarization) between 8 and 14 h after fertilization (AF), and become committed to this polarity at ap
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21. Cell Cycle in the Fucus Zygote Parallels a Somatic Cell Cycle but Displays a Unique Translational Regulation of Cyclin-Dependent Kinases
In eukaryotic cells, the basic machinery of cell cycle control is highly conserved. In particular, many cellular events during cell cycle progression are controlled by cyclin-dependent kinases (CDKs). The cell cycle in animal early embryos, however, differs substantially from that of somatic cells or yeasts. For example, cell cycle checkpoints that ensure th
American Society of Plant Physiologists.
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22. Localization of Actin mRNA during the Establishment of Cell Polarity and Early Cell Divisions in Fucus Embryos.
Localization of mRNA is a well-described mechanism to account for the asymmetric distribution of proteins in polarized somatic cells and embryos of animals. In zygotes of the brown alga Fucus, F-actin is localized at the site of polar growth and accumulates at the cell plates of the first two divisions of the embryo. We used a nonradioactive, whole-mount in
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23. Isolation of Polysaccharides Sulfated during Early Embryogenesis in Fucus1
Beginning 10 hours after fertilization, zygotes of Fucus distichus L. Powell incorporate 35S into polysaccharides as a sulfate ester of fucose. These sulfated polysaccharides are sequestered in only the rhizoid cell of the two-celled embryo and can serve as a marker of cellular differentiation. Zygotes were pulsed at different times after fertilization with
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24. Successful external fertilization in turbulent environments.
Mathematical and experimental simulations predict that external fertilization is unsuccessful in habitats characterized by high water motion. A key assumption of such predictions is that gametes are released in hydrodynamic regimes that quickly dilute gametes. We used fucoid seaweeds to examine whether marine organisms in intertidal and subtidal habitats mig