Issued as N.R.C.C. No. 9815.
STUDIES ON THE ALGAL CUTICLE1
Article first published online: 27 APR 2007
Journal of Phycology
Volume 5, Issue 2, pages 89–102, June 1969
How to Cite
Hanic, L. A. and Craigie, J. S. (1969), STUDIES ON THE ALGAL CUTICLE. Journal of Phycology, 5: 89–102. doi: 10.1111/j.1529-8817.1969.tb02585.x
- Issue published online: 27 APR 2007
- Article first published online: 27 APR 2007
- Received June 4, 1968; revised January 15, 1969.
A chemically resistant cuticle fraction was isolated from 5 phaeophycean, 1 rhodophycean, and 11 chlorophycean marine algae using acid treatment alone, or acid treatment followed by leaching in cupra-ammonium. In Cladophora rupestris and Chaetomorpha melagonium this fraction consists of several alternate microfibrillar and amorphous layers similar in appearance to those seen in innermost carbohydrate-rich regions and amount to about 1/10 or more of the cell wall thickness. In Porphyra umbilicalis and Padina vickersiae it is a single layer less than I μ thick, accounting for 1/50–1/100 of the cell wall in Porphyra, and 1/5–1/10 of the cell wall in Padina. The cuticle fractions of all 4 algae contain surprisingly large amounts of protein (about 70% in Cladophora and 80% in Porphyra). Similarities in the behavior of cuticles obtained from the other 12 species studied suggest that they may have a similar protein-rich composition.