Results 71 to 80 of about 2,725 (182)
Toxins, 2021 Regulatory limits for shellfish toxins are required to protect human health. Often these limits are set using only acute toxicity data, which is significant, as in some communities, shellfish makes up a large proportion of their daily diet and can be ...
Sarah C. Finch +8 more
doaj +1 more source
An ecological framework for microbial metabolites in the ocean ecosystem
Limnology and Oceanography Letters, Volume 10, Issue 5, Page 636-659, September 2025.Abstract The ocean microbe‐metabolite network involves thousands of individual metabolites that encompass a breadth of chemical diversity and biological functions. These microbial metabolites mediate biogeochemical cycles, facilitate ecological relationships, and impact ecosystem health. While analytical advancements have begun to illuminate such roles,
Bryndan P. Durham +24 more
wiley +1 more source
Toxins, 2020 Phytoplankton anti-grazer traits control zooplankton grazing and are associated with harmful blooms. Yet, how morphological versus chemical phytoplankton defenses regulate zooplankton grazing is poorly understood. We compared zooplankton grazing and prey
Luciana M. Rangel +4 more
doaj +1 more source
Die Chemie und Biologie der Tetrodotoxin Naturstofffamilie
Angewandte Chemie, Volume 137, Issue 35, August 25, 2025.Tetrodotoxin ist vor allem als das Gift des Kugelfisches bekannt, einer Delikatesse in der japanischen Küche. Seine Toxizität beruht auf der selektiven Blockade von NaV Kanälen, wie am Beispiel der NaV1.7 Pore dargestellt, wobei das DEKA Motiv hervorgehoben ist, das für die Durchlässigkeit von Natriumionen verantwortlich ist.
Benedikt Nißl +6 more
wiley +1 more source
The Chemistry and Biology of the Tetrodotoxin Natural Product Family
Angewandte Chemie International Edition, Volume 64, Issue 35, August 25, 2025.Tetrodotoxin is best known as the poison of the pufferfish, which is a delicacy in Japanese cuisine. Its toxicity arises from the selective blockage of NaV channels, which is depicted for the NaV1.7 pore, highlighting the DEKA motif, which permeates sodium ions.
Benedikt Nißl +6 more
wiley +1 more source
Toxins, 2018 Tetrodotoxin (TTX) is a potent neurotoxin associated with human poisonings through the consumption of pufferfish. More recently, TTX has been identified in bivalve molluscs from diverse geographical environments, including Europe, and is therefore ...
Sarah C. Finch +2 more
doaj +1 more source
Environmental Microbiology Reports, Volume 17, Issue 3, June 2025.The potentially toxigenic cyanobacterium Raphidiopsis raciborskii has spread to temperate regions and produces massive blooms. This study reports the first taxonomic and functional metagenomic assessment of a strain from the Mediterranean, thus filling a significant gap in global distribution.
Nico Salmaso +4 more
wiley +1 more source
Changes in toxins, intracellular and dissolved free amino acids of the toxic dinoflagellate Gymnodinium catenatum in response to changes in inorganic nutrients and salinity [PDF]
, 1996 19 páginas, 7 figuras, 2 tablas.The paralytic shellfish poison prducing dinoflagellate Gymnodiniun catemrum was subjected to changes in salinity, phosphate, ammonium and nitrate using continuous culture and batch culture methods.
Flynn, Kevin J. +5 more
core +1 more source
, 2004 International audienceWe extend second-harmonic generation (SHG) microscopy to the measurement of sarcomere length in unstained living cardiac myocytes with 20-nm accuracy. We quantify individual sarcomere shortening in the presence of saxitoxin and find
Beaurepaire, Emmanuel +3 more
core +4 more sources
Presynaptic initiation by action potentials of retrograde signals in developing neurons. [PDF]
, 1997 Until recently, the only means by which electrical activity was believed to initiate retrograde signals was via postsynaptic events: modulated synthesis or release of trophic factors.
Clarke, P.G.H., Primi, M.P.
core +1 more source