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Ascophyllum nodosum is the only species in the genus Ascophyllum. The original name (basionym) was Fucus nodosus Linnaeus 1753. The species was transferred to the genus Ascophyllum (as Ascophylla) by Stackhouse (Papenfuss 1950), under the name Ascophyllum laevigata (Guiry and Guiry 2020). The combination Ascophyllum nodosum was made by Le Jolis ...
On sheltered shores Ascophyllum nodosum usually forms a broad and dominating zone along the shore at the mid-littoral. Other brown algae can be found at the low-littoral such as Himanthalia, Laminaria saxatilis and Alaria esculenta. Small green and red algae and animals occur, protected under these large brown algae. [7]
With the use of 16S rRNA and fungal internal transcribed spacer (ITS) sequencing, Renaut et al. examined the effect of Ascophyllum nodosum extract treatment on the rhizospheres of pepper and tomato plants in greenhouses. [74] This group found that bacterial and fungal species composition and community structures differed based on treatment. [74]
Commercial grade alginate is extracted from giant kelp Macrocystis pyrifera, Ascophyllum nodosum, and types of Laminaria. Alginates are also produced by two bacterial genera Pseudomonas and Azotobacter, which played a major role in the unravelling of its biosynthesis pathway. Bacterial alginates are useful for the production of micro- or ...
Some members of the class, such as kelps, are used by humans as food. Between 1,500 and 2,000 species of brown algae are known worldwide. [ 5 ] Some species, such as Ascophyllum nodosum , have become subjects of extensive research in their own right due to their commercial importance.
Ascophyllum nodosum exposed to the sun in Nova Scotia, Canada Dead man's fingers (Codium fragile) off the Massachusetts coast in the United States The top of a kelp forest in Otago, New Zealand. Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae.
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Chemical structure of tetrafucol A, a fucol-type phlorotannin found in the brown alga Ascophyllum nodosum Durvillaea antarctica, a brown algae containing phlorotannins. Phlorotannins are a type of tannins found in brown algae such as kelps and rockweeds [1] or sargassacean species, [2] and in a lower amount also in some red algae. [3]