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25993D

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Image #   25993D
Name:   Marine, filamentous, centric diatom (Chaetoceros sp.)
Copyright:   Copyright 2009 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Marine, filamentous, centric diatom (Chaetoceros sp.). Some diatoms form chains of cells to become a filamentous colony. The filamentous diatom genus Chaetoceros is composed of individual cells that are centric or oval in shape with paired spike-like projections at each end. Chaetoceros is one of the largest genera of marine planktonic diatoms with approximately 400 species. They occur in huge numbers in plankton and play an important role in marine and fresh water food chains. Diatoms are microscopic, unicellular algae that are abundant in marine and fresh water. The body or frustule is composed of two halves which fit tightly together. The cells walls contain silica dioxide (glass) which are preserved in deposits known as diatomaceous earth. Once hardened into rock it is called diatomite and can be used for many purposes including filters, fillers and abrasives.
Magnification*: x440
Type: SEM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   25993D algae diatom Chaetoceros alga filamentous centric colonial diatom centric colonial diatoms centric diatom centric diatoms colonial diatom colonial diatoms diatoms filamentous diatom Chaetocerotaceae diatom colonies diatom colony diatom filament diatom filamentous colonies diatom filamentous colony diatom filaments filamentous colonies marine centric frustule SEM Bacillariophyta Coscinodiscineae Bacillariophyceae Heterokonta diatom frustule diatom frustules 03.01.09 aquatic eukaryote phytoplankton plankton salt water sea water silica silica skeleton siliceous frustule Heterokontophyta eukaryotes eukaryotic diatom phytoplankton protist protists single cell marine planton salt water phytoplankton salt water plankton saltwater phytoplankton saltwater plankton sea water phytoplankton sea water plankton seawater phytoplankton seawater plankton marine diatom marine diatoms alga photosynthesis algae photosynthesis marine photosynthesis diatomite marine phytoplankton diatomaceous earth Florida marine diatom Florida marine diatoms Florida diatom Florida diatoms centric diatom frustule centric diatom frustules silica dioxide food chain

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