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The brown algae include the largest and fastest growing of seaweeds. [6] Fronds of Macrocystis may grow as much as 50 cm (20 in) per day, and the stipes can grow 6 cm (2.4 in) in a single day. [13] Growth in most brown algae occurs at the tips of structures as a result of divisions in a single apical cell or in a row of such
The carbon storage system of brown algae is unusual, involving the accumulation of reserves of mannitol and the β-1,3-glucan laminarin rather than α-1,4-glucans such as starch or glycogen. [4] The mannitol pathway was probably most likely a speciation event in the brown algal lineage via a horizontal transfer event from actinobacteria , along ...
This is a list of the orders, families and genera in the class Phaeophyceae — the brown algae. [1] Discosporangiophycidae. Discosporangiales. Choristocarpaceae
Ectocarpus is a genus of filamentous brown alga that includes a model organism for the genomics of multicellularity. [1] [2] Among possible model organisms in the brown algae, Ectocarpus was selected for the relatively small size of its mature thallus and the speed with which it completes its life cycle.
Turbinaria J.V. Lamouroux is a genus under family Sargassaceae, order Fucales, of the class Phaeophyceae (brown algae). Taxonomic classification is based on morphological characteristics including the shape of the leaves, vesicles, and receptacles, as well as the development of the axes. [4]
Ectocarpaceae is a family of brown algae in the order Ectocarpales. It includes four genera, Ectocarpus , Kuckuckia , Pleurocladia , and Spongostema . [ 1 ]
This in fact has made classifying brown algae difficult. [17] Kelp often have similar morphological features to other species within its own area since the roughness of the wave disturbance regime, but can look fairly different from other members of its own species that are found in different wave disturbance regimes.
The initial targets of Cavalier-Smith's classification, the protozoa were classified as members of the animal kingdom, [12] and many algae were regarded as part of the plant kingdom. With growing awareness that the animals and plants embraced unrelated taxa, the use of the two kingdom system was rejected by specialists.