Diversity, Genomics, and Distribution of Phytoplankton-Cyanobacterium Single-Cell Symbiotic Associations.

  title={Diversity, Genomics, and Distribution of Phytoplankton-Cyanobacterium Single-Cell Symbiotic Associations.},
  author={Rachel A Foster and Jonathan P. Zehr},
  journal={Annual review of microbiology},
  • R. Foster, J. Zehr
  • Published 8 September 2019
  • Environmental Science
  • Annual review of microbiology
Cyanobacteria are common in symbiotic relationships with diverse multicellular organisms (animals, plants, fungi) in terrestrial environments and with single-celled heterotrophic, mixotrophic, and autotrophic protists in aquatic environments. In the sunlit zones of aquatic environments, diverse cyanobacterial symbioses exist with autotrophic taxa in phytoplankton, including dinoflagellates, diatoms, and haptophytes (prymnesiophytes). Phototrophic unicellular cyanobacteria related to… 
Overlooked and widespread pennate diatom-diazotroph symbioses in the sea
Two distinct marine pennate diatom–diazotroph symbioses are discovered and characterization, which represent an overlooked but widespread source of bioavailable nitrogen in marine habitats and provide new, easily cultured model organisms for the study of organelle evolution.
Symbioses of Cyanobacteria in Marine Environments: Ecological Insights and Biotechnological Perspectives
This review explores the cyanobacterial symbioses in marine environments, considering them not only as diazotrophs but taking into consideration exchanges of infochemicals as well and emphasizing both the chemical ecology of relationship and the candidate biotechnological value for pharmaceutical and nutraceutical applications.
Cyanobiont genetic diversity and host specificity of cyanobiont-bearing dinoflagellate Ornithocercus in temperate coastal waters
Genetic analysis of cyanobionts from the dinoflagellate host Ornithocercus revealed that three genetic types of Synechococcales cyanOBionts occurred in a wide range of water temperatures, and their distribution seemed to be closely associated with variations in salinity.
Isolation, growth, and nitrogen fixation rates of the Hemiaulus-Richelia (diatom-cyanobacterium) symbiosis in culture
This study reports the successful isolation and growth in monocultures of multiple strains of a diatom-cyanobacteria symbiosis from the Gulf of Mexico using a modified artificial seawater medium and provides the first detailed description of the approaches, handling, and methodologies used for successful culture of this marine symbiosis.
Predicting substrate exchange in marine diatom-heterocystous cyanobacteria symbioses.
Three proposed models of metabolite exchanges are suggested which take into account the type of transporters in the symbionts and the influence of their cellular location on the available nutrient pools and provide a basis for several hypotheses that warrant future testing.
The Symbiotic “All-Rounders”: Partnerships between Marine Animals and Chemosynthetic Nitrogen-Fixing Bacteria
  • J. Petersen, B. Yuen
  • Environmental Science, Biology
    Applied and Environmental Microbiology
  • 2020
The first chemoautotrophic nitrogen-fixing symbionts were discovered in a common family of marine clams in 2016, and evolutionary aspects of this discovery are considered, by comparing strategies that have evolved for hosting intracellular nitrogen- Fixing Symbionts in plants and animals.
The rate and fate of N2 and C fixation by marine diatom-diazotroph symbioses
Several eco-physiological parameters necessary for incorporating symbiotic N2 fixing populations into larger basin scale biogeochemical models (i.e., N and C cycles) are provided.
Defining Cyanobacterial Species: Diversity and Description Through Genomics
Diversity and description of cyanobacteria are discussed, covering traditional and new methods to define species boundaries and concluding with a focus on the advances made through genomics.
Cladobranchia (Gastropoda, Nudibranchia) as a Promising Model to Understand the Molecular Evolution of Photosymbiosis in Animals
Sea slugs belonging to the Cladobranchia have the potential to shed light on the evolution of photosymbiosis in taxonomically divergent animals that also harbor photobionts of different evolutionary lineages.
Cell sorting reveals few novel prokaryote and photosynthetic picoeukaryote associations in the oligotrophic ocean
The results indicate that apart from the UCYN‐A symbiosis, similar tight species‐specific associations with PPEs are unusual in the oligotrophic ocean.