Late-Holocene Lake Diatom-Inferred Palaeoclimate from Central Turkey

Diatoms are unicellular, eukaryotic, photosynthetic algae belong to Bacillariophyceae, found in both fresh and marine water. They are found in a wide variety of habitats, responsible for up to 25% of the world’s net primary productivity [1]. Diatom is the only organism having genetic ability to mineralize natural silica and to deposit over the frustule in nanoporous sizes. After understanding t...

Citation: Cohen NR, Ellis KA, Lampe RH, McNair H, Twining BS, Maldonado MT, Brzezinski MA, Kuzminov FI, Thamatrakoln K, Till CP, Bruland KW, Sunda WG, Bargu S and Marchetti A (2018) Corrigendum: Diatom Transcriptional and Physiological Responses to Changes in Iron Bioavailability across Ocean Provinces. Front. Mar. Sci. 5:115. doi: 10.3389/fmars.2018.00115 Corrigendum: Diatom Transcriptional an...

This work present a new gadget for sampling epilithic diatoms from both lentic and lotic enviroments. The sampler consists of a polystyrene cylinder, left to float on the surface of the water, to which stone substrates are attached. This epilithic diatom sampler (EDS) can be used to detect spatial and temporal richness and density variation in the study of the diatom community, as well as in wa...

Citation: Wasmund N, Kownacka J, Göbel J, Jaanus A, Johansen M, Jurgensone I, Lehtinen S and Powilleit M (2017) The Diatom/Dinoflagellate Index as an Indicator of Ecosystem Changes in the Baltic Sea 1. Principle and Handling Instruction. Front. Mar. Sci. 4:22. doi: 10.3389/fmars.2017.00022 The Diatom/Dinoflagellate Index as an Indicator of Ecosystem Changes in the Baltic Sea 1. Principle and Ha...

We developed a new strategy of optofluidic analysis from inkjet-printed droplets on photonic crystal biosilica-diatom at nanoliter scales. The hydrophilic diatom surface could concentrate target molecules in the liquid droplets as the solvent evaporates, which enables 2,4,6-trinitrotoluene (TNT) detection down to 2.7×10-15 grams by surface-enhanced Raman scattering (SERS). © 2016 The Authors. P...

Citation: Cohen NR, Ellis KA, Lampe RH, McNair H, Twining BS, Maldonado MT, Brzezinski MA, Kuzminov FI, Thamatrakoln K, Till CP, Bruland KW, Sunda WG, Bargu S and Marchetti A (2017) Diatom Transcriptional and Physiological Responses to Changes in Iron Bioavailability across Ocean Provinces. Front. Mar. Sci. 4:360. doi: 10.3389/fmars.2017.00360 Diatom Transcriptional and Physiological Responses ...

Particulate organic matter (POM) lability is one of the key factors determining residence time carbon (OC) in marine system. Phytoplankton community composition can influence rate at which heterotrophic microorganisms decompose phytoplankton detrital particles and thus, it controls fraction OC that reaches ocean depths, where be sequestered for climate-relevant spans time. Here, we compared deg...

Diatoms are often a major food source for zooplankton and contribute significantly to vertical POC flux through sinking of dead cells, aggregates and zooplankton fecal pellets. The silica content of diatoms varies among different species and within a species growing under different environmental conditions and physiological status. However, to-date there has been no investigation of the effect ...

Marine planktonic diatoms export carbon to the deep ocean, playing a key role in the global carbon cycle. Although commonly thought to have diversified over the Cenozoic as global oceans cooled, only two conflicting quantitative reconstructions exist, both from the Neptune deep-sea microfossil occurrences database. Total diversity shows Cenozoic increase but is sample size biased; conventional ...