Results 21 to 30 of about 138,368 (322)

Ras-dva small GTPases lost during evolution of amniotes regulate regeneration in anamniotes

open access: yesScientific Reports, 2018
In contrast to amniotes (reptiles, birds and mammals), anamniotes (fishes and amphibians) can effectively regenerate body appendages such as fins, limbs and tails. Why such a useful capability was progressively lost in amniotes remains unknown.
Anastasiya S. Ivanova   +5 more
doaj   +1 more source

Reproduction of the Azooxanthellate Coral Caryophyllia inornata Is Not Affected by Temperature Along an 850 km Gradient on the Western Italian Coast

open access: yesFrontiers in Marine Science, 2020
The Intergovernmental Panel on Climate Change (IPCC) predicted that ocean surface temperature will rise of 0.6–2.0°C by 2100. Ocean warming is expected to produce strong impacts on marine ecosystems such as coral reefs, affecting their physiological ...
Chiara Marchini   +7 more
doaj   +1 more source

Proteomic Analysis of S-Nitrosation Sites During Somatic Embryogenesis in Brazilian Pine, Araucaria angustifolia (Bertol.) Kuntze

open access: yesFrontiers in Plant Science, 2022
Cysteine S-nitrosation is a redox-based post-translational modification that mediates nitric oxide (NO) regulation of various aspects of plant growth, development and stress responses.
Alexandre Junio Borges Araujo   +8 more
doaj   +1 more source

Initial characterization of gap phase introduction in every cell cycle of C. elegans embryogenesis

open access: yesFrontiers in Cell and Developmental Biology, 2022
Early embryonic cell cycles usually alternate between S and M phases without any gap phase. When the gap phases are developmentally introduced in various cell types remains poorly defined especially during embryogenesis.
Ming-Kin Wong   +14 more
doaj   +1 more source

Brownian-like deviation of neighboring cells in the early embryogenesis of the zebrafish [PDF]

open access: yesPhysical Biology, Institute of Physics: Hybrid Open Access, 2019, 16 (2), pp.024001, 2019
We investigate cell trajectories during zebrafish early embryogenesis based on 3D+time photonic microscopy imaging data. To remove the collective flow motion and focus on fluctuations, we analyze the deviations of pairs of neighboring cells. These deviations resemble Brownian motion and reveal different behaviors between pairs containing daughter cells
arxiv   +1 more source

Mechanochemical models for calcium waves in embryonic epithelia [PDF]

open access: yesVietnam Journal of Mathematics, volume 50, pages 947-975, year 2022, 2021
In embryogenesis, epithelial cells, acting as individual entities or as coordinated aggregates in a tissue, exhibit strong coupling between chemical signalling and mechanical responses to internally or externally applied stresses. Intercellular communication in combination with such coordination of morphogenetic movements can lead to drastic ...
arxiv   +1 more source

Galectins: a key intersection between glycobiology and immunology

open access: yesBrazilian Journal of Medical and Biological Research, 1999
Galectins are a family of evolutionarily conserved animal lectins, widely distributed from lower invertebrates to mammals. They share sequence and structure similarities in the carbohydrate recognition domain and specificity for polylactosamine-enriched ...
G.A. Rabinovich   +3 more
doaj   +1 more source

Overexpression of a CPYC-Type Glutaredoxin, OsGrxC2.2, Causes Abnormal Embryos and an Increased Grain Weight in Rice

open access: yesFrontiers in Plant Science, 2019
Glutaredoxins (Grxs) are a ubiquitous group of oxidoreductase enzymes that are important in plant growth and development; however, the functions of rice Grxs have not been fully elucidated.
Shengjie Liu   +9 more
doaj   +1 more source

Come together over me: Cells that form the dermatocranium and chondrocranium in mice

open access: yesThe Anatomical Record, EarlyView., 2023
Abstract Most bone develops either by intramembranous ossification where bone forms within a soft connective tissue, or by endochondral ossification by way of a cartilage anlagen or model. Bones of the skull can form endochondrally or intramembranously or represent a combination of the two types of ossification.
M. Kathleen Pitirri   +5 more
wiley   +1 more source

Correlation between metabolic depression and ecdysteroid peak during embryogenesis of the desert locust, Schistocerca gregaria (Orthoptera: Acrididae)

open access: yesEuropean Journal of Entomology, 2000
Respiratory metabolism of developing eggs of Schistocerca gregaria has been individually monitored by means of scanning microrespirography. The freshly oviposited eggs consumed 7 nl of O2 /min./egg (50 µl O2/g/h) while the pharate 1st instar larvae ...
Karel SLÁMA
doaj   +1 more source

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