Results 61 to 70 of about 814 (164)

Toxinas paralizantes de moluscos en el Mar Argentino: impacto, transferencia trófica y perspectiva

Marine and Fishery Sciences, 2019
En el Mar Argentino, los dinoflagelados Gymodinium catenatum y el complejo Alexandrium tamarense/catenella producen potentes neurotoxinas (saxitoxinas) que pueden acumularse en moluscos y producir severas intoxicaciones en humanos conocidas como ...
Nora Montoya
doaj   +1 more source

Scientific opinion on marine biotoxins in shellfish in the Republic of Croatia

Food Risk Assess Europe, Volume 2, Issue 2, April 2024.
Summary Marine biotoxins are thermostable, mostly non‐protein molecules with different chemical components. According to solubility, they are divided into water‐soluble (hydrophilic) and fat‐soluble (lipophilic). The regulations of the EU and the Republic of Croatia regarding the maximum limits (ML) in live shellfish cover several groups: azaspiracids (
Brigita Hengl, Jasenka Petrić, Andrea Gross – Bošković, Ivana Ujević, Eddy Listeš, Tanja Bogdanović, Natalija Džafić, Kristina Kvrgić   +7 more
wiley   +1 more source

Mapping distribution of cysts of recent dinoflagellate and Cochlodinium polykrikoides using next-generation sequencing and morphological approaches in South Sea, Korea

Scientific Reports, 2018
The total dinoflagellate cyst community and the cysts of Cochlodinium polykrikoides in the surface sediments of South Sea (Tongyeong coast), South Korea, were analysed using next-generation sequencing (NGS) and morphological approaches.
Seung Won Jung, Donhyug Kang, Hyun-Jung Kim, Hyeon Ho Shin, Joon Sang Park, So Yun Park, Taek-Kyun Lee   +6 more
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Change in Paralytic Shellfish Toxins in the Mussel Mytilus galloprovincialis Depending on Dynamics of Harmful Alexandrium catenella (Group I) in the Geoje Coast (South Korea) during Bloom Season

Toxins, 2020
Paralytic shellfish toxins (PSTs) produced by Alexandrium catenella (formerly A. tamarense) in Korean coastal waters caused the deaths of four people (in 1986 and 1996) who consumed contaminated mussels (Mytilus edulis).
Seung Ho Baek, Jung Min Choi, Minji Lee, Bum Soo Park, Yuchengmin Zhang, Osamu Arakawa, Tomohiro Takatani, Joong-Kyun Jeon, Young Ok Kim   +8 more
doaj   +1 more source

Synthesis and Identification of decarbamoyloxySaxitoxins in Toxic Microalgae and their Reactions with the Oxygenase, SxtT, Reveal Saxitoxin Biosynthesis

Chemistry – A European Journal, Volume 30, Issue 18, March 25, 2024.
decarbamoyloxySaxitoxins (doSTXs), dd‐doSTX (2), 12β‐deoxy‐doSTX (3), 12α‐deoxy‐doSTX (4) and doSTX (5) were synthesized, and 2, 3, and 5 were identified in the toxin‐producing marine dinoflagellates and a freshwater cyanobacterium. In addition, conversion of 2 to 3, and 4 to 5 by SxtT with VanB was confirmed.
Mayu Hakamada, Chihiro Tokairin, Hayate Ishizuka, Kanna Adachi, Toma Osawa, Shiori Aonuma, Ryosuke Hirozumi, Shigeki Tsuchiya, Yuko Cho, Yuta Kudo, Keiichi Konoki, Yasukatsu Oshima, Kazuo Nagasawa, Mari Yotsu‐Yamashita   +13 more
wiley   +1 more source

qPCR Assays for the Detection and Quantification of Multiple Paralytic Shellfish Toxin-Producing Species of Alexandrium

Frontiers in Microbiology, 2018
Paralytic shellfish toxin producing dinoflagellates have negatively impacted the shellfish aquaculture industry worldwide, including in Australia and New Zealand.
Rendy Ruvindy, Christopher J. Bolch, Lincoln MacKenzie, Kirsty F. Smith, Shauna A. Murray   +4 more
doaj   +1 more source

The Cost of Toxicity in Microalgae: Direct Evidence From the Dinoflagellate Alexandrium

Frontiers in Microbiology, 2019
Empirical evidence of the cost of producing toxic compounds in harmful microalgae is completely lacking. Yet costs are often assumed to be high, implying substantial ecological benefits with adaptive significance exist.
Hannah E. Blossom, Bo Markussen, Niels Daugbjerg, Bernd Krock, Andreas Norlin, Per Juel Hansen   +5 more
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Temporal Variation of the Profile and Concentrations of Paralytic Shellfish Toxins and Tetrodotoxin in the Scallop, Patinopecten yessoensis, Cultured in a Bay of East Japan

Marine Drugs, 2019
Paralytic shellfish toxins (PSTs) are the major neurotoxic contaminants of edible bivalves in Japan. Tetrodotoxin (TTX) was recently detected in bivalve shellfish around the world, drawing widespread attention.
Satoshi Numano, Yuta Kudo, Yuko Cho, Keiichi Konoki, Mari Yotsu-Yamashita   +4 more
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La marea roja causada por el dinoflagelado Alexandrium tamarense en la costa Pacífica colombiana (2001)

Revista de Biología Tropical, 2004
El 26 de marzo de 2001 se registró por primera vez en las aguas del Pacífico colombiano, en el área de la Ensenada de Tumaco, la aparición de una marea roja producida por la especie Alexandrium tamarense con valores que superaron las 7.5 x 10(6) céls l-1
Ingrid García-Hansen, Roberto Cortés-Altamirano, Arturo P Sierra-Beltrán   +2 more
doaj  

Community changes of gut microbes highlight their importance in the adaptation of copepods to toxic dinoflagellates

Frontiers in Marine Science
Zooplankton grazers, like copepods, can feed on toxic microalgae and live normally. We hypothesize that gut microbial communities (GMCs) may contribute to the detoxification of the host by changing their compositions and recruiting more beneficial ...
Jing Yang, Zhimeng Xu, Yi Chen, Huo Xu, Zuyuan Gao, Xiaodong Zhang, Mengwen Pang, Shuwen Zhang, Hongbin Liu, Hongbin Liu   +9 more
doaj   +1 more source