Diatom - Wikipedia
WEBA diatom ( Neo-Latin diatoma) [a] is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world.
Diatom | Description, Characteristics, & Reproduction | Britannica
WEBDiatoms are among the most important and prolific microscopic sea organisms and serve directly or indirectly as food for many animals. Diatomaceous earth, a substance composed of fossil diatoms, is used in filters, insulation, abrasives, paints, and varnishes and as a base in dynamite.
What are Diatoms? - Diatoms of North America
WEBDiatoms are single-celled algae. Diatoms are algae that live in houses made of glass. They are the only organism on the planet with cell walls composed of transparent, opaline silica. Diatom cell walls are ornamented by intricate and striking patterns of silica.
Diatom - Definition, Reproduction and Location - Biology Dictionary
WEBJan 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.
4.4: Diatoms - Biology LibreTexts
WEBDiatoms are an incredibly diverse group of unicellular organisms containing anywhere from 20,000 to 2 million species. These organisms are unicellular and surrounded by a frustule, a silica shell made from two distinct valves that enclose the plasma membrane.
Diatoms of North America
WEBWhat are Diatoms? Diatoms are single-celled algae that live nearly everywhere there is water - streams, ponds, lakes, oceans, and even soils. Learn more about diatoms
The life of diatoms in the world's oceans | Nature
WEBMay 13, 2009 · About one-fifth of the photosynthesis on Earth is carried out by microscopic, eukaryotic phytoplankton known as diatoms 1. These photosynthetic workhorses are found in waters worldwide, wherever...
17.7: Bacillariophyta - The Diatoms - Biology LibreTexts
WEBJun 16, 2020 · Diatoms are an incredibly diverse group of unicellular organisms containing anywhere from 20,000 to 2 million species. Morphology: Unicellular. Cell wall composition: Silica frustule. Chloroplasts: 4 membranes, pigments are chlorophyll a, chlorophyll c, and fucoxanthin. Storage carbohydrate: Chrysolaminarin. Life cycle: Diplontic.
Insights into global diatom distribution and diversity in the ... - PNAS
WEBFeb 29, 2016 · Diatoms (Bacillariophyta) constitute one of the most diverse and ecologically important groups of phytoplankton. They are considered to be particularly important in nutrient-rich coastal ecosystems and at high latitudes, but considerably less so in the oligotrophic open ocean.
The evolution of diatoms and their biogeochemical functions
WEBJul 17, 2017 · In contemporary oceans diatoms are an important group of eukaryotic phytoplankton that typically dominate in upwelling regions and at high latitudes. They also make significant contributions to sporadic blooms that often occur in springtime.
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