Results 21 to 30 of about 29,170 (291)
Leaf structure of species of the Brassicaceae Burnett family in Southwestern Kyzylkum, Uzbekistan [PDF]
Caspian Journal of Environmental SciencesLeaf species of the family Brassicaceae have been studied, diagnostic features have been identified. Omitted by various types of trichomes: stellate, dendroid stomata are randomly arranged, numerous, non-submerged, mostly anomatid hemiparacytic ...
Gulbahar Tursinbayeva +10 more
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Evolution of Insect Dorsoventral Patterning Mechanisms [PDF]
Cold Spring Harbor Symposia on Quantitative Biology, 2009 The dorsoventral (DV) patterning of the early Drosophila embryo depends on Dorsal, a maternal sequence-specific transcription factor related to mammalian NF-kappaB. Dorsal controls DV patterning through the differential regulation of approximately 50 target genes in a concentration-dependent manner.
M W, Perry +3 more
openaire +2 more sources
eLife, 2017 Organizers play important roles during the embryonic development of many animals. The most famous example is the Spemann organizer that sets up embryonic axes in amphibian embryos.
Matthias Pechmann +4 more
doaj +1 more source
Animals, 2020 Horse trainers often claim that exercise on a water treadmill (WT) leads to a greater muscle power and development compared to terrestrial locomotion, because of the greater viscosity of water compared to air.
Aritz Saitua +6 more
doaj +1 more source
The Selector Gene apterous and Notch Are Required to Locally Increase Mechanical Cell Bond Tension at the Drosophila Dorsoventral Compartment Boundary. [PDF]
PLoS ONE, 2016 The separation of cells with distinct fates and functions is important for tissue and organ formation during animal development. Regions of different fates within tissues are often separated from another along straight boundaries.
Marcus Michel +5 more
doaj +1 more source
Indicators of the dorsoventral axis in medaka (Oryzias latipes) zygotes [PDF]
Using time-lapse video microscopy and immunofluorescence, we found that the vector of saltatory motion of subcellular parcels in the vegetal pole region of medaka zygotes is parallel to (1) microtubules in this region of the zygote and (2) the future ...
Trimble, Leah M., Fluck, Richard A.
core +2 more sources
Laminar and dorsoventral molecular organization of the medial entorhinal cortex revealed by large-scale anatomical analysis of gene expression. [PDF]
PLoS Computational Biology, 2015 Neural circuits in the medial entorhinal cortex (MEC) encode an animal's position and orientation in space. Within the MEC spatial representations, including grid and directional firing fields, have a laminar and dorsoventral organization that ...
Helen L Ramsden +3 more
doaj +1 more source
Visual Field Coordinate Systems in Visual Neurophysiology [PDF]
Anais da Academia Brasileira de Ciências, 2023 In this work, algorithms have been developed to: 1. Compare visual field coordinate data, presented in different representation systems; 2. Determine the distance in degrees between any two points in the visual field; 3.
MARCELO GATTASS, RICARDO GATTASS
doaj +1 more source
Calcium mediates dorsoventral patterning of mesoderm in Xenopus [PDF]
Current Biology, 2001 Calcium signals participate in the differentiation of electrically excitable and nonexcitable cells; one example of this differentiation is the acquisition of mature neuronal phenotypes. For example, transient elevations of the intracellular calcium concentration have been recorded in the ectoderm of early embryos, and this elevation has been proposed ...
Palma, Verónica +2 more
openaire +7 more sources
The cellular logic of limb regeneration
eLifeHierarchical communication between cells with distinct positional memories orchestrates the regeneration of missing limb structures in axolotls.
Matthew Cherubino, Catherine D McCusker
doaj +1 more source