Link between Domoic Acid Production and Cell Physiology after Exchange of Bacterial Communities between Toxic Pseudo-nitzschia multiseries and Non-Toxic Pseudo-nitzschia delicatissima [PDF]
Marine Drugs, 2014 Bacteria are known to influence domoic acid (DA) production by Pseudo-nitzschia spp., but the link between DA production and physiology of diatoms requires more investigation. We compared a toxic P. multiseries to a non-toxic P.
Aurélie Lelong +2 more
doaj +8 more sources
Frontiers in Marine Science, 2022 In 2016-17, shellfish harvesting closed for the first time in Narragansett Bay, Rhode Island, USA, from domoic acid (DA), a neurotoxin produced by diatoms of the Pseudo-nitzschia genus.
Katherine M. Roche +5 more
doaj +3 more sources
Capacity of the potentially toxic diatoms Pseudo-nitzschia mannii and Pseudo-nitzschia hasleana to tolerate polycyclic aromatic hydrocarbons [PDF]
Ecotoxicology and Environmental Safety, 2021 This study investigates the effects of polycyclic aromatic hydrocarbons (PAHs) on two potentially toxic Pseudo-nitzschia hasleana and P. mannii, isolated from a PAH contaminated marine environment.
Sondes Melliti Ben Garali +12 more
doaj +5 more sources
De novo transcriptome assembly of a lipoxygenase knock-down strain in the diatom Pseudo-nitzschia arenysensis [PDF]
Scientific DataDiatoms are microalgae that live in marine and freshwater environments and are responsible for about 20% of the world’s carbon fixation. Population dynamics of these cells is finely regulated by intricate signal transduction systems, in which oxylipins ...
Pina Marotta +4 more
doaj +2 more sources
Pseudo-nitzschia challenged with co-occurring viral communities display diverse infection phenotypes [PDF]
Frontiers in Microbiology, 2016 Viruses are catalysts of biogeochemical cycling, architects of microbial community structure, and terminators of phytoplankton blooms. Viral lysis of diatoms, a key group of eukaryotic phytoplankton, has the potential to impact carbon export and marine ...
Michael Curtis Grier Carlson +3 more
doaj +2 more sources
Marine Drugs, 2013 Because domoic acid, a neurotoxic secondary metabolite produced by marine diatoms in the genus Pseudo-nitzschia, is hypothesized to be part of a high affinity iron uptake system, we investigated whether domoic acid could improve the competitive ability ...
Georg Pohnert
exaly +3 more sources
A new diatom species P. hallegraeffii sp. nov. belonging to the toxic genus Pseudo-nitzschia (Bacillariophyceae) from the East Australian Current. [PDF]
PLoS ONE, 2018 A new species belonging to the toxin producing diatom genus Pseudo-nitzschia, P. hallegraeffii sp. nov., is delineated and described from the East Australian Current (EAC).
Penelope A Ajani +4 more
doaj +2 more sources
Marine Drugs, 2015 Over the last century, human activities have altered the global nitrogen cycle, and anthropogenic inputs of both inorganic and organic nitrogen species have increased around the world, causing significant changes to the functioning of aquatic ecosystems.
Veronique Martin-jezequel +2 more
exaly +3 more sources
MRP3 is a sex determining gene in the diatom Pseudo-nitzschia multistriata [PDF]
Nature Communications, 2018 Little is known about how sex is determined in diatoms. Here, Russo et al. show that in the diatom Pseudo-nitzschia multistriata, the gene MRP3 regulates mating type and the expression of four other mating-type biased genes.
Monia T. Russo +12 more
doaj +2 more sources
Illuminating the dark metabolome of Pseudo-nitzschia-microbiome associations. [PDF]
Environ Microbiol, 2022 Abstract The exchange of metabolites mediates algal and bacterial interactions that maintain ecosystem function. Yet, while thousands of metabolites are produced, only a few molecules have been identified in these associations. Using the ubiquitous microalgae Pseudo‐nitzschia
Koester I +13 more
europepmc +4 more sources