Results 11 to 20 of about 296,177 (193)

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, Laura Vitale, Laura Entrambasaguas, Konstantinos Anestis, Neri Fattorini, Filomena Romano, Carmen Minucci, Pasquale De Luca, Elio Biffali, Wim Vyverman, Remo Sanges, Marina Montresor, Maria I. Ferrante   +12 more
doaj   +7 more sources

A Decade of Time Series Sampling Reveals Thermal Variation and Shifts in Pseudo-nitzschia Species Composition That Contribute to Harmful Algal Blooms in an Eastern US Estuary

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, Alexa R. Sterling, Tatiana A. Rynearson, Matthew J. Bertin, Bethany D. Jenkins, Bethany D. Jenkins   +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, Inès Sahraoui, Hiba Ben Othman, Abdessalem Kouki, Pablo de la Iglesia, Jorge Diogène, Céline Lafabrie, Karl B. Andree, Margarita Fernández-Tejedor, Kaouther Mejri, Marouan Meddeb, Olivier Pringault, Asma Sakka Hlaili   +12 more
doaj   +5 more sources

Morphological, molecular and toxigenic characteristics of Namibian Pseudo-nitzschia species – including Pseudo-nitzschia bucculenta sp. nov. [PDF]

Harmful Algae, 2018
A field study was undertaken to investigate the occurrence and toxin production of species in the diatom genus Pseudo-nitzschia in Namibian waters, in the extremely productive Benguela upwelling system. From surveys conducted on the R/V Mirabilis and the R/V !Anichab, 52 strains were morphologically determined to species level, supported by nuclear ITS
Gai, Frederik Frøsig, Hedemand, Cecilie Kirketerp, Louw, Deon C., Grobler, Kolette, Krock, Bernd, Moestrup, Øjvind, Lundholm, Nina   +6 more
core   +7 more sources

Stress Response in Toxic Diatoms: The Effects of Abiotic Factors on Growth and RNA Content in Pseudo-nitzschia calliantha and in Pseudo-nitzschia multistriata

Journal of Marine Science and Engineering, 2023
Pennate diatoms belonging to the genus Pseudo-nitzschia are important components of phytoplankton assemblages in aquatic environments. Among them, the bloom-forming species Pseudo-nitzschia calliantha and Pseudo-nitzschia multistriata are known as domoic
Luca Ambrosino, Marco Miralto, Lucia Barra, Angela Sardo, Maria Luisa Chiusano, Radiana Cozza, Michele Ferrari, Silvestro Greco   +7 more
doaj   +3 more sources

A high resolution melting method for the molecular identification of the potentially toxic diatom Pseudo-nitzschia spp. in the Mediterranean Sea [PDF]

Scientific Reports, 2017
The aim of this study was to develop and validate a high resolution melting (HRM) method for the rapid, accurate identification of the various harmful diatom Pseudo-nitzschia species in marine environments.
Laura Pugliese, Silvia Casabianca, Federico Perini, Francesca Andreoni, Antonella Penna   +4 more
doaj   +2 more sources

Pseudo-nitzschia species on the Catalan coast: characterization and contribution to the current knowledge of the distribution of this genus in the Mediterranean Sea [PDF]

Scientia Marina, 2010
Proliferations of the genus Pseudo-nitzschia recur along the Catalan coast (NW Mediterranean) throughout the year. The establishment of 58 clonal cultures facilitated morphological studies with scanning electron microscopy (SEM) and ITS 5.8S rDNA ...
Sonia Quijano-Scheggia, Esther Garcés, Karl B. Andree, Pablo de la Iglesia, Jorge Diogène, José Manuel Fortuño, Jordi Camp   +6 more
doaj   +2 more sources

A Time Series of Water Column Distributions and Sinking Particle Flux of Pseudo-Nitzschia and Domoic Acid in the Santa Barbara Basin, California [PDF]

Toxins, 2018
Water column bulk Pseudo-nitzschia abundance and the dissolved and particulate domoic acid (DA) concentrations were measured in the Santa Barbara Basin (SBB), California from 2009⁻2013 and compared to bulk Pseudo-nitzschia cell abundance and DA ...
Blaire P. Umhau, Claudia R. Benitez-Nelson, Clarissa R. Anderson, Kelly McCabe, Christopher Burrell   +4 more
doaj   +2 more sources

Morphology, phylogeny and taxonomy of species within the Pseudo-nitzschia americana complex (Bacillariophyceae) with descriptions of two new species, Pseudo-nitzschia brasiliana and Pseudo-nitzschia linea

Phycologia, 2002
Abstract Pseudo-nitzschia americana and the two closely related species P. brasiliana Lundholm, Hasle & G.A. Fryxell sp. nov. and P. linea Lundholm, Hasle & G.A. Fryxell sp. nov. are described, based on morphology. The phylogenetic positions of P. americana and P.
Lundholm, Nina, Hasle, Grethe Rytter, Fryxell, Greta A., Hargraves, Paul E.   +3 more
openaire   +3 more sources

Bloom dynamics of the genus Pseudo-nitzschia (Bacillariophyceae) in two coastal bays (NW Mediterranean Sea) [PDF]

Scientia Marina, 2008
The spatial and temporal variations in the composition of Pseudo-nitzschia during bloom events from August 2005 to February 2006 were characterised in two bays of the NW Mediterranean Sea (Alfacs and Fangar Bay) by means of scanning electron microscopy ...
Sonia Quijano-Scheggia, Esther Garcés, Eva Flo, Margarita Fernandez-Tejedor, Jorge Diogène, Jordi Camp   +5 more
doaj   +2 more sources