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ALGAE > Volume 29(3); 2014 > Article
ALGAE 2014;29(3): 197-201. doi: https://doi.org/10.4490/algae.2014.29.3.197
Akashiwo sanguinea (Dinophyceae) extruding mucous from pores on the cell surface
Susan Badylak1, Edward J. Phlips1,*, A. Loren Mathews1 and Karen Kelley2

1Fisheries and Aquatic Science, School of Forest Resources and Conservation, University of Florida, 7922 NW 71 St., Gainesville, FL 32653, USA
2ICBR Electron Microscopy and BioImaging Laboratory, University of Florida, 1052 Museum Rd., Gainesville, FL 32611-0700, USA
*Corresponding Author  Email: phlips@ufl.edu
ABSTRACT
This is the first recorded observation of Akashiwo sanguinea excreting mucilaginous substances from pores on the cell surface. Observations were from samples collected in the Caloosahatchee Estuary, Florida, USA during a bloom event, with densities of 672 cells mL-1 of A. sanguinea, including 51 cells surrounded by mucous. Scanning electron microscopy observations revealed that the mucous was secreted from thecal pores on the cell surface. The potential significance of mucous production is discussed.
Key words: Akashiwo sanguinea; cyst; dinoflagellate; HAB; mucocyst; reproduction; trichocyst


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