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Ectocarpaceae
Ectocarpaceae is a family of brown algae Brown algae (singular: alga), comprising the class Phaeophyceae, are a large group of multicellular algae, including many seaweeds located in colder waters within the Northern Hemisphere. Brown algae are the major seaweeds of the temperate and p ... in the order Ectocarpales. It includes four genera, '' Ectocarpus'', '' Kuckuckia'', '' Pleurocladia'', and '' Spongostema''. References Ectocarpales Brown algae families Taxa named by Jacob Georg Agardh {{Phaeophyceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Algae
Brown algae (singular: alga), comprising the class Phaeophyceae, are a large group of multicellular algae, including many seaweeds located in colder waters within the Northern Hemisphere. Brown algae are the major seaweeds of the temperate and polar regions. They are dominant on rocky shores throughout cooler areas of the world. Most brown algae live in marine environments, where they play an important role both as food and as a potential habitat. For instance, '' Macrocystis'', a kelp of the order Laminariales, may reach in length and forms prominent underwater kelp forests. Kelp forests like these contain a high level of biodiversity. Another example is ''Sargassum'', which creates unique floating mats of seaweed in the tropical waters of the Sargasso Sea that serve as the habitats for many species. Many brown algae, such as members of the order Fucales, commonly grow along rocky seashores. Some members of the class, such as kelps, are used by humans as food. Between 1,500 a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectocarpales
Ectocarpales is a very large order in the brown algae (class Phaeophyceae). The order includes families with pseudoparenchymatous (Splachnidiaceae) or true parenchymatous ( Scytosiphonaceae) tissue. 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 filaments of one or more rows of cells. Algae that can divide in two planes can form sheet-like thalli or bodies. Cells that can divide in a third plane potentially allow for the organism to develop a more complex body plan, and diversification of body plans into an erect thallus of some sort and a holdfast for attaching the upright portion to the substrate. A 2014 classification recognizes the following families: * Acinetosporaceae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectocarpus Siliculosus
''Ectocarpus siliculosus'' is a filamentous brown alga. Its genome was the first brown macroalgal genome to be sequenced, with the expectation that ''E. siliculosus'' will serve as a genetic and genomic model for brown macroalgae. Ecology The brown algae are members of the stramenopiles (along with organisms such as diatoms and oomycetes). The stramenopiles diverged from other major eukaryotic groups such as the opisthokonts (animals and fungi) and the archaeplastida (which includes land plants) over a billion years ago. The brown algae are also important because they are one of only a small number of eukaryotic groups that have evolved complex multicellularity. The alga is unbranched and filamentous; it forms soft beards on larger plants or other firm substrata and grows up to 2 feet long. Its thallus is filamentous, initially organized as a main primary filament composed of elongated cells and round cells, from which branches differentiate. E. siliculosus is a tufted plant, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ectocarpus
''Ectocarpus'' is a genus of filamentous brown alga that is a model organism for the genomics of multicellularity. 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. The type species for the genus is '' Ectocarpus siliculosus'' ( Dillwyn) Lyngbye. The life history is an isomorphic to slightly kiheteromorphic alternation of generations, but asexual strains also exist. Taxonomy and Nomenclature In 1809, Dillwyn described ''Ectocarpus'' as another algae known as ''Conferva siliculosa'' basing from collected specimens by W.J. Hooker from Norfolk and East Sussex. In 1819, Lyngbye subsequently described ''Ectocarpus'' using a specimen from Denmark, citing ''C. siliculosa'' Dilwyn as its basionym. These brown algae are known members of heterokonts, which includes diatoms and oomycetes. Ectocarpales is known to be primitive from a phylogenetic standpoi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (taxonomy)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Algae Families
Brown is a color. It can be considered a composite color, but it is mainly a darker shade of orange. In the CMYK color model used in printing or painting, brown is usually made by combining the colors orange and black. In the RGB color model used to project colors onto television screens and computer monitors, brown combines red and green. The color brown is seen widely in nature, wood, soil, human hair color, eye color and skin pigmentation. Brown is the color of dark wood or rich soil. According to public opinion surveys in Europe and the United States, brown is the least favorite color of the public; it is often associated with plainness, the rustic, feces, and poverty. More positive associations include baking, warmth, wildlife, and the autumn. Etymology The term is from Old English , in origin for any dusky or dark shade of color. The first recorded use of ''brown'' as a color name in English was in 1000. The Common Germanic adjectives ''*brûnoz and *brûnâ'' meant b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
