The red algae (or Rhodophyta, pronounced /roʊˈdÉ’fɨtÉ™, ËŒroÊŠdəˈfaɪtÉ™/, from Greek Greek , an independent branch of the Indo-European family of languages, is the language of the Greeks. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. In its ancient form, it is the language of classical ancient Greek literature and the New Testament of: ῥόδον (rhodon) = rose + φυτόν (phyton) = plant, thus red plant) are one of the oldest groups of eukaryotic A eukaryote is an organism whose cells contain complex structures inside the membranes. The defining membrane-bound structure that sets eukaryotic cells apart from prokaryotic cells is the nucleus, or nuclear envelope, within which the genetic material is carried. The presence of a nucleus gives eukaryotes their name, which comes from the Greek ÎµÏ algae,[2] and also one of the largest, with about 5,000–6,000 species [3] of mostly multicellular Multicellular organisms are organisms consisting of more than one cell, and having differentiated cells that perform specialized functions in the organism. Most life that can be seen with the naked eye is multicellular, as are all members of the kingdoms Plantae and Animalia, marine An ocean (from Greek Ωκεανός, Okeanos ) is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface (~3.61 X 1014 m2) is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas algae Algae are a large and diverse group of simple, typically autotrophic organisms, ranging from unicellular to multicellular forms. The largest and most complex marine forms are called seaweeds. They are photosynthetic, like plants, and "simple" because they lack the many distinct organs found in land plants, including many notable seaweeds Seaweed is a loose colloquial term encompassing macroscopic, multicellular, benthic marine algae. The term includes some members of the red, brown and green algae. Seaweeds can also be classified by use. Other references indicate 10,000 species. [4]
The red algae form a distinct group characterized by the following attributes: eukaryotic cells without flagella A flagellum is a tail-like projection that protrudes from the cell body of certain prokaryotic and eukaryotic cells, and functions in locomotion. There are some notable differences between prokaryotic and eukaryotic flagella, such as protein composition, structure, and mechanism of propulsion. An example of a flagellated bacterium is the ulcer- and centrioles A centriole is a barrel-shaped cell structure found in most animal eukaryotic cells, though absent in higher plants and most fungi. The walls of each centriole are usually composed of nine triplets of microtubules . Deviations from this structure include Drosophila melanogaster embryos, with nine doublets, and Caenorhabditis elegans sperm cells, using floridean starch as food reserve, with phycobiliproteins Phycobiliproteins are water-soluble proteins present in cyanobacteria and certain algae that capture light energy which is then passed on to chlorophylls during photosynthesis. Phycobiliproteins are formed of a complex between proteins and covalently bound phycobilins that act as chromophores (the light-capturing part). They are most important as accessory pigments (giving them their red color), and with chloroplasts Chloroplasts are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis. Chloroplasts capture light energy to conserve free energy in the form of ATP and reduce NADP to NADPH through a complex set of processes called photosynthesis lacking external endoplasmic reticulum The general structure of the endoplasmic reticulum is an extensive membrane network of cisternae held together by the cytoskeleton. The phospholipid membrane encloses a space, the cisternal space (or lumen), from the cytosol, which is continuous with the perinuclear space. The functions of the endoplasmic reticulum vary greatly depending on the and containing unstacked thylakoids A thylakoid is a membrane-bound compartment inside chloroplasts and cyanobacteria. They are the site of the light-dependent reactions of photosynthesis. The word "thylakoid" is derived from the Greek thylakos, meaning "sac". Thylakoids consists of a thylakoid membrane surrounding a thylakoid lumen. Chloroplast thylakoids. [4] Most red algae are also multicellular Multicellular organisms are organisms consisting of more than one cell, and having differentiated cells that perform specialized functions in the organism. Most life that can be seen with the naked eye is multicellular, as are all members of the kingdoms Plantae and Animalia, macroscopic, marine, and have sexual reproduction.
Many of the coralline algae Coralline algae are red algae in the Family Corallinaceae of the order Corallinales. They are characterized by a thallus that is hard because of calcareous deposits contained within the cell walls. The colors of these algae are most typically pink, or some other shade of red, but some species can be purple, yellow, blue, white or gray-green, which secrete calcium carbonate Calcium carbonate is a chemical compound with the chemical formula Ca and play a major role in building coral reefs Coral reefs are aragonite structures produced by living organisms, found in marine waters containing few nutrients. In most reefs, the predominant organisms are stony corals, colonial cnidarians that secrete an exoskeleton of calcium carbonate. The accumulation of skeletal material, broken and piled up by wave action and bioeroders, produces a, belong here. Red algae such as dulse Palmaria palmata Kuntze, also called dulse, dillisk, dilsk or creathnach, is a red alga (Rhodophyta) previously referred to as Rhodymenia palmata (Linnaeus) Greville. It grows on the northern coasts of the Atlantic and Pacific oceans. It is a well-known snack food, and in Iceland, where it is known as söl, it has been an important source of fibre (Palmaria palmata) and laver Although actually a form of algae, laver is generally referred to as an edible seaweed that has a high mineral salt content, particularly iodine and iron. It is used for making laverbread, a traditional Welsh dish. Laver is common around the west coast of Britain and east coast of Ireland along the Irish Sea. Laver is unique among seaweeds because (nori Nori is the Japanese name for various edible seaweed species of the red alga Porphyra including most notably P. yezoensis and P. tenera, sometimes called laver . Finished products are made by a shredding and rack-drying process that resembles papermaking. Japan, Korea, and China are the current major producers of nori, with total production valued/gim Gim , sometimes spelled kim, is a Korean-style edible seaweed in the genus Porphyra, similar to the Welsh-style laver and Japanese-style nori) are a traditional part of European European cuisine, or alternatively Western cuisine is a generalized term collectively referring to the cuisines of Europe and other Western countries. European cuisine includes that of Europe and to some extent Russia, as well as non-indigenous cuisines of North America, Australasia, Oceania, and Latin America. The term is used by East Asians to and Asian cuisine Asian cuisine styles can be broken down into several regional styles that have roots in the peoples and cultures of those regions. The major types can be roughly defined as East Asian with its origins in Imperial China and now encompassing modern Japan and the Korean peninsula; Southeast Asian which encompasses Cambodia, Laos, Thailand, Viet Nam, and are used to make other products like agar Agar or agar agar is a gelatinous substance derived from seaweed. Historically and in a modern context, it is chiefly used as an ingredient in desserts throughout Japan, but in the past century has found extensive use as a solid substrate to contain culture medium for microbiological work. The gelling agent is an unbranched polysaccharide obtained, carrageenans Carrageenans or carrageenins are a family of linear sulphated polysaccharides which are extracted from red seaweeds and other food additives Food additives are substances added to food to preserve flavour or improve its taste and appearance. Some additives have been used for centuries; for example, preserving food by pickling , salting, as with bacon, preserving sweets or using sulfur dioxide as in some wines. With the advent of processed foods in the second half of the 20th century,. [5]
The first red algae to have its genome sequenced was Cyanidioschyzon merolae.
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Q. ok i have a fresh water tank, and i noticed that it has red algae in it. and from what i keep reading it grows in salt water tanks. does anyone know more about this?
Asked by heathergriggs - Tue Apr 8 22:37:36 2008 - - 1 Answers - 0 Comments
A. Many times, the way that a tank aquires red algae is when you purchase the fish from a different tank, there are algae spores in that tank and therefore in the fish. Then, when you transfer the fish into your tank, it starts to eat, and eventually defecate. This releases the spores into your tank, which may take hold on a surface and begin to grow. A small amount of red algae is a sign of a rich, thriving tank environment. *Hint* Turn off all the lights and put a blacklight or moonlight over the tank- the red algae will look AWESOME!
Answered by Dani B - Tue Apr 8 23:15:34 2008
