Results 61 to 70 of about 3,063 (181)
Ecology and Evolution, Volume 16, Issue 7, July 2026.Is division of marine animals into macrofauna and meiofauna merely an arbitrary convenience, or, as has been claimed, does their size difference render them distinct and independent entities evolved under different ecological constraints? Those in the Knysna estuarine bay did not behave as distinct and discrete ecological entities, their individual ...
R. S. K. Barnes
wiley +1 more source
Environmental DNA, Volume 8, Issue 4, July‐August 2026.Sedimentary DNA metabarcoding tracks long‐term eukaryotic community change in Pacific salmon nursery lakes, revealing potential land‐use and climate influences on algal communities and resilience indicators. ABSTRACT Pacific salmon are keystone species in North Pacific freshwater, riparian, and marine ecosystems, but many populations have declined or ...
Yuanyu Cheng +4 more
wiley +1 more source
Frontiers in Zoology, 2007 Background Flatworms are characterized by an outstanding stem cell system. These stem cells (neoblasts) can give rise to all cell types including germ cells and power the exceptional regenerative capacity of many flatworm species.
Eichberger Paul +8 more
doaj +1 more source
Environmental DNA, Volume 8, Issue 4, July‐August 2026.Self‐constructed Unmanned Surface Vehicles were deployed at coral reefs on Reunion Island to capture environmental DNA (eDNA), identifying changes in animal communities depending on the time of day and sampling station. These findings suggest specific sites for high‐frequency, long‐term eDNA monitoring using low‐cost mobile devices.
Dominique A. Cowart +8 more
wiley +1 more source
PLoS Neglected Tropical Diseases, 2009 BackgroundApproximately 200 million people worldwide harbour parasitic flatworm infections that cause schistosomiasis. A single drug-praziquantel (PZQ)-has served as the mainstay pharmacotherapy for schistosome infections since the 1980s.
Taisaku Nogi +3 more
doaj +1 more source
Neuropeptide signalling systems in flatworms
Parasitology, 2005 Two distinct families of neuropeptides are known to endow platyhelminth nervous systems – the FMRFamide-like peptides (FLPs) and the neuropeptide Fs (NPFs). Flatworm FLPs are structurally simple, each 4–6 amino acids in length with a carboxy terminal aromatic-hydrophobic-Arg-Phe-amide motif. Thus far, four distinct flatworm FLPs have been characterized,
McVeigh, P. +4 more
openaire +4 more sources
eLife, 2016 A population of stems cells continuously rejuvenates the outer surface of a human parasitic flatworm.
Mark S Pearson, Alex Loukas
doaj +1 more source
Classical transmitters and their receptors in flatworms
Parasitology, 2005 The flatworm nervous system employs a wide repertoire of neuroactive substances, including small chemical messengers, the so called classical transmitters, and several types of neuropeptides. A large body of research accumulated over four decades has provided a wealth of information on the tissue localization and effects of these substances, their ...
P, Ribeiro, F, El-Shehabi, N, Patocka
openaire +2 more sources
Conservation and diversification of small RNA pathways within flatworms
BMC Evolutionary Biology, 2017 Background Small non-coding RNAs, including miRNAs, and gene silencing mediated by RNA interference have been described in free-living and parasitic lineages of flatworms, but only few key factors of the small RNA pathways have been exhaustively ...
Santiago Fontenla +3 more
doaj +1 more source
Molecules, 2015 Parasitic flatworms cause serious infectious diseases that affect humans and livestock in vast regions of the world, yet there are few effective drugs to treat them. Thioredoxin glutathione reductase (TGR) is an essential enzyme for redox homeostasis in
Vivian Pasquet +6 more
doaj +1 more source