Results 51 to 60 of about 7,557 (161)

Identification of the Gene sxtA (Domains sxtA1 and sxtA4) in Mexican Strains of Gymnodinium catenatum (Dinophyceae) and Their Evolution

Frontiers in Marine Science, 2018
Saxitoxin (STX) and its analogs are a broad group of natural neurotoxic alkaloids, commonly known as paralytic shellfish toxins. SxtA is the initial gene in the biosynthesis of saxitoxin.
Armando Mendoza-Flores, Ignacio Leyva-Valencia, Christine J. Band-Schmidt, Clara E. Galindo-Sánchez, José J. Bustillos-Guzmán   +4 more
doaj   +1 more source

STX-S exosome vaccine elicited a robust immune response using significantly lower amounts of antigen compared to recombinant protein vaccines.

, 2023
The STX-S vaccine induced robust expression of SARS-CoV-2 spike antibodies in mice after 1 (day 14) and 2 (day 35) IM injections as analyzed by ELISA. PBS was used as a vehicle control in all studies. STX-S vaccine exosomes were administered at the doses
Justin B. Nice (16865908), Kristi Elliott (16865923), Minghao Sun (2368234), Mafalda Cacciottolo (16865905), Michael J. LeClaire (7908947), Meredith Young (5108894), Jenna Angeles (16865920), Ryan Twaddle (16865911), Yujia Li (436877), Ciana L. Mora (16865914), Stephanie Y. Adachi (16865917)   +10 more
core   +1 more source

Monitoring of saxitoxin production in lakes in Denmark by molecular, chromatographic and microscopic approaches

, 2021
Diversity of phytoplankton in three eutrophic and two mesotrophic lakes in Denmark was determined by microscopic and HPLC pigment analyses to identify and quantify potential saxitoxin (STX) producing cyanobacteria.
Moraes, Munique de Almeida Bispo, Jørgensen, Niels O.G., Schlüter, Louse, Liu, Tingting, Osti, João Alexandre Saviolo, Podduturi, Raju   +5 more
core   +1 more source

Marine toxins - saxitoxin (STX) and tetrodotoxin (TTX)

, 2015
Saxitoxin (STX) and tetrodotoxin (TTX) are two of the most poisonous marine biotoxins known. They have a very interesting history, both used as a means for suicide and murder STX has been announced publicly by the world`s governments as a chemical weapon,
Georgieva, Marieta, Hvarchanova, Nadezhda   +1 more
core   +1 more source

Uncovering the Complex Transcriptome Response of Mytilus chilensis against Saxitoxin: Implications of Harmful Algal Blooms on Mussel Populations. [PDF]

PLoS ONE, 2016
Saxitoxin (STX), a principal phycotoxin contributing to paralytic shellfish poisoning, is largely produced by marine microalgae of the genus Alexandrium. This toxin affects a wide range of species, inducing massive deaths in fish and other marine species.
Camille Detree, Gustavo Núñez-Acuña, Steven Roberts, Cristian Gallardo-Escárate   +3 more
doaj   +1 more source

Integrative Biomarker Assessment of the Influence of Saxitoxin on Marine Bivalves: A Comparative Study of the Two Bivalve Species Oysters, Crassostrea gigas, and Scallops, Chlamys farreri

Frontiers in Physiology, 2018
Harmful algae blooms have expanded greatly in recent decades, and their secreted toxins pose a severe threat to human health and marine ecosystems. Saxitoxin (STX) is a main paralytic shellfish poison naturally produced by marine microalgae of the genus ...
Ruiwen Cao, Ruiwen Cao, Ruiwen Cao, Dan Wang, Qianyu Wei, Qing Wang, Qing Wang, Dinglong Yang, Dinglong Yang, Hui Liu, Hui Liu, Zhijun Dong, Zhijun Dong, Xiaoli Zhang, Xiaoli Zhang, Qianqian Zhang, Qianqian Zhang, Jianmin Zhao, Jianmin Zhao   +18 more
doaj   +1 more source

Environmental Factors Modulate Saxitoxins (STXs) Production in Toxic Dinoflagellate Alexandrium: An Updated Review of STXs and Synthesis Gene Aspects

Toxins
The marine dinoflagellate Alexandrium is known to form harmful algal blooms (HABs) and produces saxitoxin (STX) and its derivatives (STXs) that cause paralytic shellfish poisoning (PSP) in humans. Cell growth and cellular metabolism are affected by environmental conditions, including nutrients, temperature, light, and the salinity of aquatic systems ...
Quynh Thi Nhu Bui, Biswajita Pradhan, Han-Sol Kim, Jang-Seu Ki   +3 more
openaire   +3 more sources

Physiological Effects of Oxidative Stress Caused by Saxitoxin in the Nematode Caenorhabditis elegans

Marine Drugs, 2023
Saxitoxin (STX) causes high toxicity by blocking voltage-gated sodium channels, and it poses a major threat to marine ecosystems and human health worldwide.
Haiyan Wu, Balakrishnan Prithiviraj, Zhijun Tan   +2 more
doaj   +1 more source

Dinoflagellate responses to nutrients and mangrove leaf organic matter in the bioluminescent Mangrove Lagoon, St. Croix, U.S. Virgin Islands

Journal of Phycology, Volume 62, Issue 4, Page 1240-1250, August 2026.
Abstract Bioluminescent bays (biobays) are uncommon coastal ecosystems featuring dense populations of dinoflagellates, often found in mangrove‐ringed lagoons with long water retention times and high organic matter (OM) levels. Although mangroves are associated with high dinoflagellate abundance, it remains uncertain how inorganic nutrients compare with
James L. Pinckney, Michelle Zimberlin, Dianne I. Greenfield   +2 more
wiley   +1 more source

Label-Free Direct Detection of Saxitoxin Based on a Localized Surface Plasmon Resonance Aptasensor

Toxins, 2019
Seafood is an emerging health food, and interest in improving the quality of seafood is increasing. Saxitoxin (STX) is a neurotoxin produced by marine dinoflagellates that is accumulated in seafood.
Su-Ji Ha, Jin-Ho Park, Bobin Lee, Min-Gon Kim   +3 more
doaj   +1 more source