Wiebe H. C. F. Kooistra
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View article: Chaetoceros
Chaetoceros Open
In this Quick guide, Vincent et al. introduce Chaetoceros, one of the most diverse and abundant genera of marine diatoms, which are microscopic algae with silica cell walls.
View article: Diatom distribution and long-term survival in a heavily polluted sediment core from the Bay of Bagnoli (Tyrrhenian Sea, Italy)
Diatom distribution and long-term survival in a heavily polluted sediment core from the Bay of Bagnoli (Tyrrhenian Sea, Italy) Open
Diatom resting stages can remain viable in sediments for decades and germinate when exposed to suitable environmental conditions, inoculating the water column and the surface sediments with new populations of cells. Classical methods, base…
View article: Strong paracrine effects of SASP from senescence-induced severe early-onset COPD-derived fibroblasts
Strong paracrine effects of SASP from senescence-induced severe early-onset COPD-derived fibroblasts Open
Background Lung fibroblasts from Severe Early-Onset (SEO-)COPD patients exhibit increased cellular senescence with higher levels of senescence-associated secretory phenotype (SASP) protein secretion. Yet, the impact of senescent fibroblast…
View article: Cellular Senescence Affects ECM Regulation in COPD Lung Tissue
Cellular Senescence Affects ECM Regulation in COPD Lung Tissue Open
Rationale Higher levels of senescence have been demonstrated in COPD patients, including severe early onset (SEO)-COPD. Recently we demonstrated a link between senescence and extracellular matrix (ECM) dysregulation in lung fibroblasts. Wh…
View article: Temporal changes of genetic structure and diversity in a marine diatom genus discovered via metabarcoding
Temporal changes of genetic structure and diversity in a marine diatom genus discovered via metabarcoding Open
Diatoms’ bloom dynamics, with seasonal cycling of waxes and wanes of cell abundance, imply frequent bottleneck and expansion events that can leave signatures in the genetic structure and diversity of populations. We explored changes in gen…
View article: Biogeography of six species in the planktonic diatom genus <i>Bacteriastrum</i> (Bacillariophyta)
Biogeography of six species in the planktonic diatom genus <i>Bacteriastrum</i> (Bacillariophyta) Open
Marine planktonic diatom species can exhibit contrasting distribution patterns, from endemic to cosmopolitan. Endemicity is counter-intuitive for planktonic species given their potentially large population sizes and ample migration opportu…
View article: Resolving cryptic species complexes in marine protists: phylogenetic haplotype networks meet global DNA metabarcoding datasets
Resolving cryptic species complexes in marine protists: phylogenetic haplotype networks meet global DNA metabarcoding datasets Open
Marine protists have traditionally been assumed to be lowly diverse and cosmopolitan. Yet, several recent studies have shown that many protist species actually consist of cryptic complexes of species whose members are often restricted to p…
View article: Global distribution and diversity of<i>Chaetoceros</i>(Bacillariophyta, Mediophyceae): integration of classical and novel strategies
Global distribution and diversity of<i>Chaetoceros</i>(Bacillariophyta, Mediophyceae): integration of classical and novel strategies Open
Information on taxa distribution is a prerequisite for many research fields, and biological records are a major source of data contributing to biogeographic studies. The Global Biodiversity Information Facility (GBIF) and the Ocean Biogeog…
View article: Annotated 18S and 28S rDNA reference sequences of taxa in the planktonic diatom family Chaetocerotaceae
Annotated 18S and 28S rDNA reference sequences of taxa in the planktonic diatom family Chaetocerotaceae Open
The species-rich diatom family Chaetocerotaceae is common in the coastal marine phytoplankton worldwide where it is responsible for a substantial part of the primary production. Despite its relevance for the global cycling of carbon and si…
View article: Molecular analyses of protists in long-term observation programmes—current status and future perspectives
Molecular analyses of protists in long-term observation programmes—current status and future perspectives Open
Protists (microbial eukaryotes) are diverse, major components of marine ecosystems, and are fundamental to ecosystem services. In the last 10 years, molecular studies have highlighted substantial novel diversity in marine systems including…
View article: Diatom phylogeny poster
Diatom phylogeny poster Open
powerpoint poster presenting a phylogeny of the diatoms with information about fossil record, life cycle, taxonomy and ecology
View article: DinoREF: a curated dinoflagellate (Dinophyceae) reference database for the 18S rRNA gene
DinoREF: a curated dinoflagellate (Dinophyceae) reference database for the 18S rRNA gene Open
Mordret, S., Piredda, R., Vaulot, D., Montresor, M., Kooistra, H. C. F. & Sarno, D. (under revision 2018). DinoREF: a curated dinoflagellate (Dinophyceae) reference database for the 18S rRNA gene. Molecular Ecology Resources.Supplementary …
View article: Chaetoceros LSU and SSU reference sequences and metadata table
Chaetoceros LSU and SSU reference sequences and metadata table Open
Fasta files of 18S rDNA and partial 28S rDNA sequences of strains belonging to species in the planktonic diatom genera Chaetoceros and Bacteriastrum. A table (S1 Table) with source information of the strains is provided, including strain c…
View article: DinoREF: a curated dinoflagellate (Dinophyceae) reference database for the 18S rRNA gene
DinoREF: a curated dinoflagellate (Dinophyceae) reference database for the 18S rRNA gene Open
Mordret, S., Piredda, R., Vaulot, D., Montresor, M., Kooistra, H. C. F. & Sarno, D. (under revision 2018). DinoREF: a curated dinoflagellate (Dinophyceae) reference database for the 18S rRNA gene. Molecular Ecology Resources.Supplementary …
View article: Two new species in the<i>Chaetoceros socialis</i>complex (Bacillariophyta):<i>C. sporotruncatus</i>and<i>C. dichatoensis,</i>and characterization of its relatives,<i>C. radicans</i>and<i>C. cinctus</i>
Two new species in the<i>Chaetoceros socialis</i>complex (Bacillariophyta):<i>C. sporotruncatus</i>and<i>C. dichatoensis,</i>and characterization of its relatives,<i>C. radicans</i>and<i>C. cinctus</i> Open
The diatom genus Chaetoceros is one of the most abundant and diverse phytoplankton in marine and brackish waters worldwide. Within this genus, Chaetoceros socialis has been cited as one of the most common species. However, recent studies f…
View article: Prenatal exposure to tobacco smoke sex dependently influences methylation and mRNA levels of the <i>Igf</i> axis in lungs of mouse offspring
Prenatal exposure to tobacco smoke sex dependently influences methylation and mRNA levels of the <i>Igf</i> axis in lungs of mouse offspring Open
Prenatal smoke exposure is a risk factor for abnormal lung development and increased sex-dependent susceptibility for asthma and chronic obstructive pulmonary disease (COPD). Birth cohort studies show genome-wide DNA methylation changes in…
View article: Diversity in the Globally Distributed Diatom Genus Chaetoceros (Bacillariophyceae): Three New Species from Warm-Temperate Waters
Diversity in the Globally Distributed Diatom Genus Chaetoceros (Bacillariophyceae): Three New Species from Warm-Temperate Waters Open
Chaetoceros is one of the most species rich, widespread and abundant diatom genera in marine and brackish habitats worldwide. It therefore forms an excellent model for in-depth biodiversity studies, assessing morphological and genetic diff…
View article: Diversity and temporal patterns of planktonic protist assemblages at a Mediterranean Long Term Ecological Research site
Diversity and temporal patterns of planktonic protist assemblages at a Mediterranean Long Term Ecological Research site Open
We tracked temporal changes in protist diversity at the Long Term Ecological Research (LTER) station MareChiara in the Gulf of Naples (Mediterranean Sea) on eight dates in 2011 using a metabarcoding approach. Illumina analysis of the V4 an…
View article: Benthic protists: the under-charted majority
Benthic protists: the under-charted majority Open
Marine protist diversity inventories have largely focused on planktonic environments, while benthic protists have received relatively little attention. We therefore hypothesize that current diversity surveys have only skimmed the surface o…