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Free Content The Red Alga, Gracilaria Foliifera, with Special Reference to the Cell Wall Polysaccharides

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Gracilaria foliifera, an agar-yielding red alga, occurs from New England to the tropics and exhibits much morphological variation. Plants weighing 5 g increased 14-fold in 20 days in Alligator Harbor, Florida, and 15-fold in Beaufort Harbor, N. C., during the summer. From 43 to 57 per cent of the dry weight consists of agar-like cell wall polysaccharides with a gel strength of 1/7 to 1/3 that of Difco agar. Samples from Virginia, North Carolina, Florida, and Texas are compared with respect to physical properties. Gracilaria lacinulata is regarded as a distinct species.

Document Type: Research Article

Publication date: December 1, 1965

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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