Results 11 to 20 of about 15,883 (221)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+15 more sources

Stage‐Specific H3K14 and H3K23 Succinylation Orchestrates Insect Metamorphosis and Oogenesis

open access: yesAdvanced Science
Histone lysine succinylation is a pivotal epigenetic modification for diverse biological processes, yet how it regulates insect metamorphosis and reproduction remains poorly understood.
Yu‐Pu Jing   +9 more
doaj   +2 more sources

Identification and differential expression of microRNAs during metamorphosis of the Japanese flounder (Paralichthys olivaceus). [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: MicroRNAs (miRNAs) are a class of endogenous small non-coding RNAs of 20-25 nucleotides that play a key role in diverse biological processes. Japanese flounder undergo dramatic metamorphosis in their early development.
Yuanshuai Fu   +5 more
doaj   +1 more source

Enzymatic activity of bone markers on Lithobates catesbeianus (Shaw, 1802) growth during the ossification process

open access: yesBrazilian Journal of Biology, 2021
In order to better understand the ossification processes in anurans our study was carried out on tadpoles and adults of Lithobates catesbeianus. In this sense, we characterized the kinetic properties of alkaline phosphatase with p-nitrophenylphosphatase (
R. R. Colosio   +5 more
doaj   +1 more source

Relationship between serum thyroid hormones and their associated metabolites, and gene expression bioindicators in the back skin of Rana [Lithobates] catesbeiana tadpoles and frogs during metamorphosis

open access: yesFrontiers in Endocrinology, 2023
Anuran metamorphosis is characterized by profound morphological changes including remodeling of tissues and organs. This transition is initiated by thyroid hormones (THs).
Rikke Poulsen   +4 more
doaj   +1 more source

Identification and differential regulation of microRNAs during thyroid hormone-dependent metamorphosis in Microhyla fissipes

open access: yesBMC Genomics, 2018
Background Anuran metamorphosis, which is obligatorily initiated and sustained by thyroid hormone (TH), is a dramatic example of extensive morphological, biochemical and cellular changes occurring during post-embryonic development.
Lusha Liu   +4 more
doaj   +1 more source

Temporal and spatial transcriptomic dynamics across brain development in Xenopus laevis tadpoles

open access: yesG3: Genes, Genomes, Genetics, 2021
Amphibian metamorphosis is a transitional period that involves significant changes in the cell-type populations and biological processes occurring in the brain.
Aaron C Ta   +5 more
doaj   +1 more source

Virus Membrane Fusion Proteins: Biological Machines that Undergo a Metamorphosis

open access: yesBioscience Reports, 2000
Fusion proteins from a group of widely disparate viruses, including the paramyxovirus F protein, the HIV and SIV gp160 proteins, the retroviral Env protein, the Ebola virus Gp, and the influenza virus haemagglutinin, share a number of common features. All contain multiple glycosylation sites, and must be trimeric and undergo proteolytic cleavage to be ...
R E, Dutch, T S, Jardetzky, R A, Lamb
openaire   +2 more sources

Metamorphosis of the invasive ascidian Ciona savignyi: environmental variables and chemical exposure [PDF]

open access: yesPeerJ, 2016
In this study, the effects of environmental variables on larval metamorphosis of the solitary ascidian Ciona savignyi were investigated in a laboratory setting.
Patrick L. Cahill   +3 more
doaj   +2 more sources

Effect of thyroid hormone concentration on the transcriptional response underlying induced metamorphosis in the Mexican axolotl (Ambystoma)

open access: yesBMC Genomics, 2008
Background Thyroid hormones (TH) induce gene expression programs that orchestrate amphibian metamorphosis. In contrast to anurans, many salamanders do not undergo metamorphosis in nature. However, they can be induced to undergo metamorphosis via exposure
Samuels Amy K   +5 more
doaj   +1 more source

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