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Jan 21, 2018 · Diatoms are a common type of unicellular phytoplankton that likely originated around the Jurassic period. Diatoms can form colonies characterized by particular shapes (e.g., stars, fans, and ribbons) and are encapsulated by a unique cell wall composed of silica, termed a frustule.
Diatoms are another photosynthetic lineage of heterokonts that was derived from the secondary endosymbiosis of the red alga. Diatoms are an incredibly diverse group of unicellular organisms containing anywhere from 20,000 to 2 million species.
Overview and description. Diatoms are a type of heterokont (phylum Heterokontophyta), a major line of eukaryotes that includes both autotrophs (e.g. golden algae) and heterotrophs (e.g. water molds). Most are algae, ranging from the giant multicellular kelp to the mainly unicellular diatoms.
May 13, 2009 · Article 25 October 2021. Deep ocean metagenomes provide insight into the metabolic architecture of bathypelagic microbial communities. Article Open access 21 May 2021. Main. About one-fifth of the...
2 days ago · DiatomBase is an attempt to integrate the Catalogue of Diatom Names, and include names that have appeared since the Catalogue of Diatom Names was last updated (2011), as well as to include information about types, ecology, images, original descriptions and distributions.
Mar 1, 2022 · Abstract. Diatoms are a major phytoplankton group, playing a critical role in the biogeochemical cycles of chemical elements such as carbon. They are one of the most abundant single-celled photosynthetic algae, contributing to about 40% of total marine primary production.
Aug 18, 2020 · Definition. Diatoms are unicellular or colonial photoautotrophic microalgae, eukaryotic organisms classified as protists of the group of the Bacillariophyta. They are characterized by the unique feature of possessing a cell wall made of silica. Diatoms form an extremely diverse and evolutionarily successful group.
