ArticleMolecular biology and evolution2010
The mixed lineage nature of nitrogen transport and assimilation in marine eukaryotic phytoplankton: a case study of micromonas.
Article in Molecular biology and evolution, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
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34 citing papers in PubMed, 77 citations in OpenAlex.
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- Heterotrophic bacteria trigger transcriptome remodelling in the photosynthetic picoeukaryote Micromonas commoda.Environmental microbiology reports · 2024Article
- Analysis of the AMT gene family in chili pepper and the effects of arbuscular mycorrhizal colonization on the expression patterns of CaAMT2 genes.BMC genomics · 2023Article
- Bacterial transcriptional response to labile exometabolites from photosynthetic picoeukaryote Micromonas commoda.ISME communications · 2023Article
- Global patterns and rates of habitat transitions across the eukaryotic tree of life.Nature ecology & evolution · 2022Article
- Dynamic Allocation of Carbon Storage and Nutrient-Dependent Exudation in a Revised Genome-Scale Model ofFrontiers in genetics · 2021Article
- Contrasting Mixotrophic Lifestyles Reveal Different Ecological Niches in Two Closely Related Marine Protists.Journal of phycology · 2020Article
- Targeted metagenomic recovery of four divergent viruses reveals shared and distinctive characteristics of giant viruses of marine eukaryotes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Article
- Evolution and regulation of nitrogen flux through compartmentalized metabolic networks in a marine diatom.Nature communications · 2019Article
- Environment-dependent fitness gains can be driven by horizontal gene transfer of transporter-encoding genes.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- New molecular insights on the response of the green alga Tetraselmis suecica to nitrogen starvation.Scientific reports · 2019Article
- The birth, evolution and death of metabolic gene clusters in fungi.Nature reviews. Microbiology · 2018Review
- Optimisation of critical medium components and culture conditions for enhanced biomass and lipid production in the oleaginous diatom Navicula phyllepta: a statistical approach.Environmental science and pollution research international · 2017Article
- Host-derived viral transporter protein for nitrogen uptake in infected marine phytoplankton.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Nitrate Reductase Knockout Uncouples Nitrate Transport from Nitrate Assimilation and Drives Repartitioning of Carbon Flux in a Model Pennate Diatom.The Plant cell · 2017Article
- Horizontal gene transfer drives the evolution of Rh50 permeases in prokaryotes.BMC evolutionary biology · 2017Article
- Conserved Transcriptional Responses to Nutrient Stress in Bloom-Forming Algae.Frontiers in microbiology · 2017Article
- Responses of the picoprasinophyte Micromonas commoda to light and ultraviolet stress.PloS one · 2017Article
- Utilization of urea and expression profiles of related genes in the dinoflagellate Prorocentrum donghaiense.PloS one · 2017Article
- Abundance and Biogeography of Picoprasinophyte Ecotypes and Other Phytoplankton in the Eastern North Pacific Ocean.Applied and environmental microbiology · 2016Article
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3 authors at 1 institution in 1 country.
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Abstract
The prasinophyte order Mamiellales contains several widespread marine picophytoplankton (≤ 2 μm diameter) taxa, including Micromonas and Ostreococcus. Complete genome sequences are available for two Micromonas isolates, CCMP1545 and RCC299. We performed in silico analyses of nitrogen transporters and related assimilation genes in CCMP1545 and RCC299 and compared these with other green lineage organisms as well as Chromalveolata, fungi, bacteria, and archaea. Phylogenetic reconstructions of ammonium transporter (AMT) genes revealed divergent types contained within each Mamiellales genome. Some were affiliated with plant and green algal AMT1 genes and others with bacterial AMT2 genes. Land plant AMT2 genes were phylogenetically closer to archaeal transporters than to Mamiellales AMT2 genes. The Mamiellales represent the first green algal genomes to harbor AMT2 genes, which are not found in Chlorella and Chlamydomonas or the chromalveolate algae analyzed but are present in oomycetes. Fewer nitrate transporter (NRT) than AMT genes were identified in the Mamiellales. NRT1 was found in all but CCMP1545 and showed highest similarity to Mamiellales and proteobacterial NRTs. NRT2 genes formed a bootstrap-supported clade basal to other green lineage organisms. Several nitrogen-related genes were colocated, forming a nitrogen gene cluster. Overall, RCC299 showed the most divergent suite of nitrogen transporters within the various Mamiellales genomes, and we developed TaqMan quantitative polymerase chain reaction primer-probes targeting a subset of these, as well as housekeeping genes, in RCC299. All those investigated showed expression either under standard growth conditions or under nitrogen depletion. Like other recent publications, our findings show a higher degree of "mixed lineage gene affiliations" among eukaryotes than anticipated, and even the most phylogenetically anomalous versions appear to be functional. Nitrogen is often considered a regulating factor for phytoplankton populations. This study provides a springboard for exploring the use and functional diversification of inorganic nitrogen transporters and related genes in eukaryotic phytoplankton.
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