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Title: Bacteriastrum  
Author: World Heritage Encyclopedia
Language: English
Subject: Biological oceanography, Diatoms, Gelatinous zooplankton, Nanophytoplankton, Frustule
Publisher: World Heritage Encyclopedia


Bacteriastrum delicatulum
Scientific classification
Domain: Eukaryota
Kingdom: Chromalveolata
Phylum: Heterokontophyta
Class: Bacillariophyceae
Order: Centrales
Suborder: Biddulphiineae
Family: Chaetocerotaceae
Genus: Bacteriastrum
Shadbolt, 1854
  • See text

Bacteriastrum is a genus of diatoms in family Chaetocerotaceae.[1] There are more than 30 described species in genus Bacteriastrum, but many of these are not currently accepted, and new species are still added to the genus.[2] The type species for the genus is Bacteriastrum furcatum Shadbolt.


Bacteriastrum is a widely distributed marine, planktonic genus. This genus is often associated with Chaetoceros but differs in radial symmetry and fenestration of setae. The colonies tend to lie in girdle view, and the cells are separated by the curvature of the basal part of the setae, leaving a small gap between the cells. The cells are cylindrical and linked to form filaments. Each cell has several long, radiating setae which may be simple or bifurcate (branched), the setae from adjacent cells are fused. The plastids are discoid. At least one species, B. solitarium, exists as single cells.[3]


See also


  1. ^ Tomas, C. R., Hasle G. R., Syvertsen, E. E., Steidinger, K. A., Tangen, K., Throndsen, J., Heimdal, B. R., (1997). Identifying Marine Phytoplankton, Academic Press.
  2. ^ Sarno, D., Zingone, A. & Marino, D. (1997). Bacteriastrum parallelum sp. nov., a new diatom from the Gulf of Naples, and new observations on B. furcatum (Chaetocerotaceae, Bacillariophyta). Phycologia 36: 257-266
  3. ^ Round, F. E. and Crawford, R. M. (1990). The Diatoms. Biology and Morphology of the Genera, Cambridge University Press, UK.
  4. ^ [1] Encyclopedia of Life

External links

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