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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 brown algae are also important because they are one of only a small number of eukaryotic groups that have evolved complex multicellularity. [ 4 ] The alga is unbranched and filamentous; [ 4 ] it forms soft beards on larger plants or other firm substrata and grows up to 2 feet long. [ 5 ]
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.
Pseudoparenchymatous refers to a filamentous alga with cells packed very close together to give an appearance of parenchymatous tissue, the latter being composed of cells which can truly divide in three dimensions, unusual among the algae. Filamentous algae are composed of cells that divide along a single plane, allowing only elongation to form ...
They eat large amounts of algae from rocks, especially filamentous and green-haired algae. ... Also known as white-spotted goby, brown-barred goby, bullet goby; scientific name amblygobius ...
Algae have photosynthetic machinery ultimately derived from cyanobacteria that produce oxygen as a byproduct of splitting water molecules, unlike other organisms that conduct anoxygenic photosynthesis such as purple and green sulfur bacteria. Fossilized filamentous algae from the Vindhya basin have been dated to 1.6 to 1.7 billion years ago. [11]
Typically, hair algae grows in a carpet of dense, short filaments. Oedogonium in particular may be referred to as hair algae. Hair algae may be caused by too much light in the aquaria. [11] Oedogonium may also be called fuzz algae and green beard algae (GBA). [3] Reticulated algae or branching algae is a green algae of the genus Cladophora. It ...
The algae poses a threat to both marine and human life. People should avoid swimming in water around the blooms because toxins that may be present could lead to a host of illnesses.
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