Results 111 to 120 of about 4,809 (206)
Diverse RNA interference strategies in early-branching metazoans
BMC Evolutionary Biology, 2018 Background Micro RNAs (miRNAs) and piwi interacting RNAs (piRNAs), along with the more ancient eukaryotic endogenous small interfering RNAs (endo-siRNAs) constitute the principal components of the RNA interference (RNAi) repertoire of most animals.
Andrew D. Calcino +3 more
doaj +1 more source
Managing the Black Sea Anchovy Fishery with Nutrient Enrichment and a Biological Invader [PDF]
Many marine systems are subject to high nutrient loadings together with invasions by exotic species. Devising appropriate management responses is an increasing concern and one that has received relatively little attention from researchers.
Barbier, Edward B., Knowler, Duncan
core +1 more source
Comparative study of Hippo pathway genes in cellular conveyor belts of a ctenophore and a cnidarian
EvoDevo, 2016 Background The Hippo pathway regulates growth rate and organ size in fly and mouse, notably through control of cell proliferation. Molecular interactions at the heart of this pathway are known to have originated in the unicellular ancestry of metazoans ...
Alicia Coste +3 more
doaj +1 more source
Convergent evolution of neural systems in ctenophores [PDF]
Journal of Experimental Biology, 2015 Neurons are defined as polarized secretory cells specializing in directional propagation of electrical signals leading to the release of extracellular messengers – features that enable them to transmit information, primarily chemical in nature, beyond their immediate neighbors without affecting all intervening cells en route.
openaire +2 more sources
Spatial mechanisms of gene regulation in metazoan embryos [PDF]
, 1991 The basic characteristics of embryonic process throughout Metazoa are considered with focus on those aspects that provide insight into how cell specification occurs in the initial stages of development.
Davidson, Eric H.
core
Aquatic Sciences and EngineeringFrom samples for the phytoplankton collected from the sea surface water of 67 stations along the entire Turkish Mediterranean coast during June-July 2019, three juvenile gelatinous organisms were recorded.
Erhan Mutlu, Doğukan Karaca
doaj +1 more source
A Rare Benthic Ctenophore, Lyrocteis cf. imperatoris, at Mesophotic Depths off Réunion Island
DiversityClosed-circuit rebreather diving has opened new opportunities for direct observation of the rich biodiversity of unexplored mesophotic coral ecosystems. We recently encountered four specimens of a rare benthic ctenophore genus, Lyrocteis.
Emilie Boissin +5 more
doaj +1 more source
Trophic ecology of carnivorous zooplankton in the Benguela [PDF]
, 1992 Carnivorous zooplankton in the Benguela system have tended to be ignored by all but early taxonomists and a handful of recent researchers. An attempt is made here to address the importance of carnivores in this system but, because the database is poor ...
Gibbons, Mark J. +2 more
core
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2003 The alien ctenophore Mnemiopsis leidyi which was transported from the Black Sea into the Caspian Sea at the end of 1990s has been negatively affecting ecosystem in this new environment.
A. Roohi1; A. Kedish2; H. Fazli1
doaj