What is the Difference Between Green and Brown Algae?

Brown algae Brown algae is a large taxonomic group of algae corresponding to green algae and red algae, belonging to the brown algae class. The cells have a brown pigment body (brown body) containing a large amount of lutein.

Brown algae

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Brown algae with

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Known xanthophylls are violaxanthin, flaxoxanthin, neoxanthin, pucoxanthin, and neofucoxanthin A (ne- ofucoxanthin A) and neofucoxanthin B, while the latter three are unique to brown algae. The stored assimilated products are in a dissolved state. The main substances are laminarin and mamnite. All are multicellular algae. The species with the simplest morphology also have branches. No branched unicellular algae have been found. Long brown algae can reach tens of meters, such as Macrocystis. Among the brown algae, the morphology and structure can be distinguished from leaf-like, stem-like, root-like, air-bag-like parts, such as Sargassum. The internal structure includes thin-walled tissue and pseudo-thin-walled tissue, as well as mucous channels such as kelp (Laminaria). The location of the growth points is an important feature in classification. Some major growth points are located at the top of the body, such as Di-ctyota. There are also growth points located outside the top of the algae, such as kelp (Laminaria) (existing between the algae stalk and the leaf (phyll)). Some are located below the top paraphysis (Carpomitra), others are the same, but the septum that grows and extends from the top septum to form a strong algae, such as Cutella )Wait. In addition to the common method of forming zoospores, asexual reproduction includes monospores of the order Tilopteridales, Dictyotales of the tetraspores, Sphacelaria of the propagation branch, Vegetatively propagated Sar-gassun natans, etc. In addition, sexual reproduction includes homomorphic gametes (Ectocarpales), Sphacela-riales, Scytosiphonales, Dictyosiphonales, and heteromorphic gametes combined with Cutellariales. The eggs are combined with Desmarest-iales, Laminariales, Fu-cales, and Dictyotales. The flagella has a tail-flap type and a velvet-flap type. About 240 genera and 1,500 species are known.