ArticlePloS one2019
Prokaryotic and eukaryotic microbiomes associated with blooms of the ichthyotoxic dinoflagellate Cochlodinium (Margalefidinium) polykrikoides in New York, USA, estuaries.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 25 citations in OpenAlex.
- Cobalt exposure induces the specific associated-bacterial microbiome potentially contributing to cobalt stress alleviation of the host dinoflagellate Scrippsiella acuminata.BMC microbiology · 2025Article
- Transitions of the Bacteria-Fungi Microbiomes Associated with Different Life Cycle Stages of DinoflagellateMicroorganisms · 2025Article
- Nanopore Sequencing of Amoebophrya Species Reveals Novel Collection of Bacteria Putatively Associated With Karlodinium veneficum.Genome biology and evolution · 2025Article
- The Cultivation of Halophilic Microalgae Shapes the Structure of Their Prokaryotic Assemblages.Microorganisms · 2024Article
- Review
- Loggerhead Sea Turtles as Hosts of Diverse Bacterial and Fungal Communities.Microbial ecology · 2024Article
- A full-length 18S ribosomal DNA metabarcoding approach for determining protist community diversity using Nanopore sequencing.Ecology and evolution · 2024Article
- Abundant Species Diversity and Essential Functions of Bacterial Communities Associated with Dinoflagellates as Revealed from Metabarcoding Sequencing for Laboratory-Raised Clonal Cultures.International journal of environmental research and public health · 2022Article
- Identification and implications of a core bacterial microbiome in 19 clonal cultures laboratory-reared for months to years of the cosmopolitan dinoflagellateFrontiers in microbiology · 2022Article
- Biodiversity and Spatial-Temporal Dynamics ofInternational journal of environmental research and public health · 2021Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
While harmful algal blooms caused by the ichthyotoxic dinoflagellate, Cochlodinium (Margalefidinium) polykrikoides, are allelopathic and may have unique associations with bacteria, a comprehensive assessment of the planktonic communities associated with these blooms has been lacking. Here, we used high-throughput amplicon sequencing to assess size fractionated (0.2 and 5 μm) bacterial (16S) and phytoplankton assemblages (18S) associated with blooms of C. polykrikoides during recurrent blooms in NY, USA. Over a three-year period, samples were collected inside ('patch') and outside ('non-patch') dense accumulations of C. polykrikoides to assess the microbiome associated with these blooms. Eukaryotic plankton communities of blooms had significantly lower diversity than non-bloom samples, and non-bloom samples hosted 30 eukaryotic operational taxonomic units (OTUs) not found within blooms, suggesting they may have been allelopathically excluded from blooms. Differential abundance analyses revealed that C. polykrikoides blooms were significantly enriched in dinoflagellates (p<0.001) and the experimental enrichment of C. polykrikoides led to a significant increase in the relative abundance of eight genera of dinoflagellates but a significant decline in other eukaryotic plankton. Amoebophrya co-dominated both within- and near- C. polykrikoides blooms and was more abundant in bloom patches. The core bacterial microbiome of the >0.2μm fraction of blooms was dominated by an uncultured bacterium from the SAR11 clade, while the >5μm size fraction was co-dominated by an uncultured bacterium from Rhodobacteraceae and Coraliomargarita. Two bacterial lineages within the >0.2μm fraction, as well as the Gammaproteobacterium, Halioglobus, from the >5μm fraction were unique to the microbiome of blooms, while there were 154 bacterial OTUs only found in non-bloom waters. Collectively, these findings reveal the unique composition and potential function of eukaryotic and prokaryotic communities associated with C. polykrikoides blooms.
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