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Acetabularia (Chlorophyceae)

Acetabularia acetabulum "reproductive cap"
Modified from an image by William R. West, CBSC, Burlingron, NC USA as posted at microscopyu.com, 1984

 

Acetabularia acetabulum
Photograph by Marjan Richte posted online

 

 

Acetabularia ryukyuensis
Photograph by Isao Inouye posted online

 

Acetabularia crenulata
Photograph by Sigrid Berger posted online

 

Acetabularia acetabulum
Photograph posted online

 

Acetabularia acetabulum
Photo by M. Gutierrez posted online

 

Acetabularia acetabulum
Photograph by CamelaTWU posted online

 

 

Acetabularia acetabulum
Photograph by Roberto Pillon posted online

 

 

Acetabularia caliculus

 

Littler, D.S., M.M. Littler & M.D. Hanisak 2008. Submersed Plants of the Indian River Lagoon:

A Floristic Inventory and Field Guide. OffShore Graphics, Inc.

 

Acetabularia ontology:  Growth phases posted online

Henry, I.M., M.D. Wilkinson, J.M. Hemandea, Z. Schwarz-Sommer, e. Grotewold and D.F. Mandoli  2004.
  Comparison of ESTs from juvenile and adult phases of the giant unicellular green alga Acetabularia acetabulum.  BMC Plant Biology20044:3.

 

 

Acetabularia life cycle posted online (Henry et al. 2004)

Henry, I.M., M.D. Wilkinson, J.M. Hemandea, Z. Schwarz-Sommer, e. Grotewold and D.F. Mandoli  2004.
Comparison of ESTs from juvenile and adult phases of the giant unicellular green alga Acetabularia acetabulum.  BMC Plant Biology20044:3.

 

 

Acetabularia acetabulum from the Thyrrenian  Sea - July 2021

 

Collection, identiication and photographs by Oana Adriana Cuzman at the Institute of Heritage Science-National Research Council (ISPC-CNR), Italy

 

Oana noted the relative rigidity of these unicells.  The rigidity is apparently related to partially crystalline mannans and calcification in the cell wall (Dunn et al. 2007) 

 

Dunn, E. et al. 2007.  Spectroscopic and Biochemical Analysis of Regions of the Cell Wall of the Unicellular ‘Mannan Weed’, Acetabularia acetabulum.  Plant Cell Physiology 48(1):  122-133.

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