The past decade has seen growing appreciation of the role of regional influences in determining the structure of local communities. An emerging view among ecologists is that local community composition is controlled by acting of nested filters which select species with suitable traits for prevailing conditions, thus leading communities regulated by local environmental factors and regional, main...

A highly efficient nuclear transformation method was established for the pennate diatom Phaeodactylum tricornutum using an electroporation system that drives multi-sequence pulses to introduce foreign DNAs into the cells. By optimizing pulse conditions, the diatom cells can be transformed without removing rigid silica-based cell walls, and high transformation efficiency (about 4,500 per 10(8) c...

A survey of the production of polyunsaturated aldehydes (PUA) of manipulated plankton communities is presented here. PUA are phytoplankton-derived metabolites that are proposed to play an important role in chemically mediated plankton interactions. Blooms of different intensities of the diatom Skeletonema marinoi were generated in eight mesocosms filled with water from the surrounding fjord by ...

A new diatom record from Lake Euramoo on the Atherton Tableland, north Queensland, Australia is used to assess regional climate change and variability and their links to forcing at a local to global scale. The major factor driving diatom composition in the approximately fifteen thousand-year record appears to be regional moisture availability. Patterns of diatom preservation and other indicator...

The Diatom Expressed Sequence Tag (EST) Database was constructed to provide integral access to ESTs from these ecologically and evolutionarily interesting microalgae. It has now been updated with 130,000 Phaeodactylum tricornutum ESTs from 16 cDNA libraries and 77,000 Thalassiosira pseudonana ESTs from seven libraries, derived from cells grown in different nutrient and stress regimes. The updat...

We report the results from a mesocosm study investigating the interrelationship between microalgae and vibrios. The mesocosms were inoculated with plankton, plankton + sediment, or sediment. We followed the diatom bloom and increases in the abundance of Vibrio spp. and V. parahaemolyticus in conjunction with several environmental variables in all mesocosms and at a reference site. The dominatin...

We report experimental and theoretical verification of the nature and position of multiple interference points of visible light transmitted through the valve of the centric diatom species Coscinodiscus granii. Furthermore, by coupling the transmitted light into an optical fiber and moving the diatom valve between constructive and destructive interference points, an extinction ratio of 20 dB is ...

Silica incorporation into biomaterials, such as Bioglass and Si-substituted calcium phosphate ceramics has received significant attention in bone tissue engineering over the last few decades. This study aims to explore dissolution behaviour of natural biosilica isolated from a freshwater diatom, Cyclotella meneghiniana, that been incorporated 3D printed poly (DL-lactide -co – glycolide) (PDLGA)...

Citation: Meyerink S, Ellwood MJ, Maher WA and Strzepek R (2017) Iron Availability Influences Silicon Isotope Fractionation in Two Southern Ocean Diatoms (Proboscia inermis and Eucampia antarctica) and a Coastal Diatom (Thalassiosira pseudonana). Front. Mar. Sci. 4:217. doi: 10.3389/fmars.2017.00217 Iron Availability Influences Silicon Isotope Fractionation in Two Southern Ocean Diatoms (Probos...

Citation: Wasmund N (2017) The Diatom/Dinoflagellate Index as an Indicator of Ecosystem Changes in the Baltic Sea. 2. Historical Data for Use in Determination of Good Environmental Status. Front. Mar. Sci. 4:153. doi: 10.3389/fmars.2017.00153 The Diatom/Dinoflagellate Index as an Indicator of Ecosystem Changes in the Baltic Sea. 2. Historical Data for Use in Determination of Good Environmental ...