In the lab, Prehoda and other paper collaborators - including some at Berkeley and Wisconsin - studied choanoflagellate
, modern single- celled organisms that sometimes form colonies to pursue food.
protein N1 contains six ankyrin repeats.
Cytoskeleton and membrane proteins, cellular organisers 1A11 4e-38 NP 990573 Low density lipoprotein Chicken 1B5 2e-49 CAF21863 Gelsolin Sponge 1D7 1e-108 U30467 Alpha-tubulin Spoon worm 1H7 3e-45 CAD91425 Actin related protein Oyster 2G1 2e-15 CAG07401 Low density lipoprotein * Pufferfish 15D9 2e-82 AY026071 Beta-tubulin Choanoflagellate
15D10 2e-43 AF510206 Beta-tubulin Ciliate AV.
Sollas (1884) considered sponges to be an independent group because they have a simple organization and sponge choanocytes bear a strong resemblance to choanoflagellate
The organisms forming these ice microbial communities include bacteria, choanoflagellate
protozoa and other heterotrophic flagellates, ciliates, and microalgae of most of the groups represented within the plankton.
Reading genomes Researchers publish the genomes for a choanoflagellate
(SN: 2/16/08, p.
Analysis of DNA from a choanoflagellate
, the closest known living nonanimal relative of animals, allows scientists to infer the genetic starter kit possessed by the first animal, the studies suggest.
The recent sequencing of the genomes of the choanoflagellate
Monosiga brevicollis (King et al.
Unlike bacteria and archaebacteria, the choanoflagellate
cell has a clearly defined nucleus.
Expressed-sequence-tag sequences from the choanoflagellate
species Monosiga brevicollis and Proterospongia-like sp.
The sponge choanocyte is said to be functionally identical to the choanoflagellate
cell (Riisgard and Larsen, 2000): the beat of the flagellum draws water toward and through a collar of microvilli (Van Trigt, 1919; Kilian, 1952; Riisgard and Larsen, 2001; Pettitt et al.
Immediately after being plated, the dissociated tissues consisted of unattached rounded masses of various sizes, some of which could be identified by their collars and flagella as parts of choanoflagellate