Results 181 to 190 of about 280,910 (369)

Embryogenesis in Myrmicine Ants Combines Features of Short Germ‐Band Development With a Progressive Mode of Segmentation

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Different insect species exhibit remarkable diversity in the developmental trajectories from fertilized eggs to hatching larvae. For three myrmicine ant species, we observe a novel combination of a developmental features: small embryonic primordia, a mode of embryogenesis termed short/intermediate germ‐band development, and progressive establishment of
Chi‐Chun Fang   +5 more
wiley   +1 more source

Xenopus laevis Oocytes

open access: yes, 2003
Xenopus oocytes are a versatile expression system particularly suited for membrane transporters and channels. Oocytes have little background activity and therefore offer a very high signal-to-noise ratio for transporter and channel characterization. This chapter provides an overview of the basic methods used for the analysis of membrane transporters in
openaire   +5 more sources

Calpain Proteases and the Evolving Signaling Network in Insect Embryonic Patterning

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Insect embryonic Dorsal‐Ventral (DV) patterning relies on the BMP and Toll pathways to different extents. Calcium‐dependent cystein proteases of the Calpain family also exert an important function to pattern the DV axis. In Drosophila, Calpain A cleaves the Cactus/IkappaB inhibitor and modifies Toll signals in ventral regions of the embryo. In Rhodnius
Alison Julio, Helena Araujo
wiley   +1 more source

Low Molecular Weight mRNA Encodes a Protein That Controls Serotonin 5-HT_(1c) and Acetylcholine M_1 Receptor Sensitivity in Xenopus Oocytes [PDF]

open access: yes, 1991
Serotonin 5-HT_(1c) and acetylcholine M_1 receptors activate phosphoinositidase, resulting in an increased formation of IP_3 and 1,2 diacylglycerol.
Davidson, N.   +5 more
core  

Increasing acidification does not affect sexual reproduction of a solitary zooxanthellate coral transplanted at a carbon dioxide vent

open access: yesLimnology and Oceanography, EarlyView.
Abstract The absorption of atmospheric carbon dioxide is causing significant changes to the carbonate chemistry of the ocean, in a phenomenon called ocean acidification. The latter makes it potentially more difficult for marine calcifiers like corals, to build their calcium carbonate structures, thus affecting their ability to survive and reproduce ...
Chiara Marchini   +11 more
wiley   +1 more source

A Neuromorphic Camera for Tracking Passive and Active Matter with Lower Data Throughput

open access: yesLaser &Photonics Reviews, EarlyView.
The merits of an event‐based camera (EBC) for studies of passive and active matter are demonstrated. It is shown that it is possible to achieve results equivalent to those from an sCMOS camera while reducing data file sizes by up to two orders of magnitude.
Gabriel Britto Monteiro   +10 more
wiley   +1 more source

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