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Asparagopsis
''Asparagopsis'' is a genus of edible red macroalgae (Rhodophyta). The species ''Asparagopsis taxiformis'' is found throughout the tropical and subtropical regions, while ''Asparagopsis armata'' is found in warm temperate regions. Both species are highly invasive, and have colonised the Mediterranean Sea. A third accepted species is ''A. svedelii'', while others are of uncertain status. Taxonomy and nomenclature The genus ''Asparagopsis'' belongs to the order Bonnemaisoniales, and family Bonnemaisoniaceae. , there are three confirmed species: *''Asparagopsis armata'' Harvey, 1855 *''Asparagopsis taxiformis'' (Delile) Trevisan de Saint-Léon, 1845 *'' Asparagopsis svedelli'' (W. R. Taylor) Other possible species are still unconfirmed: *''Asparagopsis delilei'' (Montagne) *''Asparagopsis hamifera'' (Hariot) *'' Asparagopsis sanfordiana'' (Harvey) This genus, particularly ''Asparagopsis taxiformis'', is also a complex species line which is composed of six cryptic lineages wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagopsis Svedelli
''Asparagopsis'' is a genus of edible red macroalgae (Rhodophyta). The species ''Asparagopsis taxiformis'' is found throughout the tropical and subtropical regions, while ''Asparagopsis armata'' is found in warm temperate regions. Both species are highly invasive, and have colonised the Mediterranean Sea. A third accepted species is ''A. svedelii'', while others are of uncertain status. Taxonomy and nomenclature The genus ''Asparagopsis'' belongs to the order Bonnemaisoniales, and family Bonnemaisoniaceae. , there are three confirmed species: *''Asparagopsis armata'' Harvey, 1855 *''Asparagopsis taxiformis'' (Delile) Trevisan de Saint-Léon, 1845 *'' Asparagopsis svedelli'' (W. R. Taylor) Other possible species are still unconfirmed: *''Asparagopsis delilei'' (Montagne) *''Asparagopsis hamifera'' (Hariot) *'' Asparagopsis sanfordiana'' (Harvey) This genus, particularly ''Asparagopsis taxiformis'', is also a complex species line which is composed of six cryptic lineages wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagopsis Armata (10
''Asparagopsis armata'' is a species of marine red algae, in the family Bonnemaisoniaceae. English name(s) include red harpoon weed. They are multicellular eukaryotic organisms. This species was first described in 1855 by Harvey, an Irish botanist who found the algae on the Western Australian coast. ''A. armata'' usually develops on infralittoral rocky bottoms around the seawater surface to around 40m of depth. Marine algae like ''A. armata'' are considered “autogenic ecosystem engineers” as they are at the very bottom of the food chain and control resource availability to other organisms in the ecosystem. Population distribution ''A. armata'' is a species native to southern Australia and New Zealand (Southern hemisphere) and is thought to have slowly spread to the Northern hemisphere through the Mediterranean sea, as it is highly invasive. It can now also be found along the British Isles to Senegal as well. The first Mediterranean ''A. armata'' was reported in Algeria in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagopsis Armata
''Asparagopsis armata'' is a species of marine red algae, in the family Bonnemaisoniaceae. English name(s) include red harpoon weed. They are multicellular eukaryotic organisms. This species was first described in 1855 by Harvey, an Irish botanist who found the algae on the Western Australian coast. ''A. armata'' usually develops on infralittoral rocky bottoms around the seawater surface to around 40m of depth. Marine algae like ''A. armata'' are considered “autogenic ecosystem engineers” as they are at the very bottom of the food chain and control resource availability to other organisms in the ecosystem. Population distribution ''A. armata'' is a species native to southern Australia and New Zealand (Southern hemisphere) and is thought to have slowly spread to the Northern hemisphere through the Mediterranean sea, as it is highly invasive. It can now also be found along the British Isles to Senegal as well. The first Mediterranean ''A. armata'' was reported in Algeria in 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagopsis Taxiformis
''Asparagopsis taxiformis'', (red sea plume or limu kohu) formerly ''A. sanfordiana'', is a species of red algae, with cosmopolitan distribution in tropical to warm temperate waters. Researchers have demonstrated that feeding ruminants a diet containing 0.2% ''A. taxiformis'' seaweed reduced their methane emissions by nearly 99 percent. Lifecycle Like many red algae, ''A. taxiformis'' has a haplodiplophasic lifecycle, with each phase morphologically distinct. The species' haploid stage was initially described as ''Falkenbergia'' ''hillebrandii'' (Bornet) Falkenberg 1901 because it was thought to be a separate species. The resources which are needed for the red algae to continue to grow is very complicated. Culinary uses ''Asparagopsis'' is one of the most popular types of ''limu''. in the cuisine of Hawaii, it is principally a condiment. It is known as ''Limu kohu'' in the Hawaiian language, meaning "pleasing seaweed". ''Limu kohu'' has a bitter taste, somewhat reminisce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagopsis Sanfordiana
''Asparagopsis taxiformis'', (red sea plume or limu kohu) formerly ''A. sanfordiana'', is a species of red algae, with cosmopolitan distribution in tropical to warm temperate waters. Researchers have demonstrated that feeding ruminants a diet containing 0.2% ''A. taxiformis'' seaweed reduced their methane emissions by nearly 99 percent. Lifecycle Like many red algae, ''A. taxiformis'' has a haplodiplophasic lifecycle, with each phase morphologically distinct. The species' haploid stage was initially described as ''Falkenbergia'' ''hillebrandii'' (Bornet) Falkenberg 1901 because it was thought to be a separate species. The resources which are needed for the red algae to continue to grow is very complicated. Culinary uses ''Asparagopsis'' is one of the most popular types of ''limu''. in the cuisine of Hawaii, it is principally a condiment. It is known as ''Limu kohu'' in the Hawaiian language, meaning "pleasing seaweed". ''Limu kohu'' has a bitter taste, somewhat reminiscen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayotte
Mayotte (; french: Mayotte, ; Shimaore: ''Maore'', ; Kibushi: ''Maori'', ), officially the Department of Mayotte (french: Département de Mayotte), is an overseas department and region and single territorial collectivity of France. It is located in the northern part of the Mozambique Channel in the Indian Ocean off the coast of Southeastern Africa, between Northwestern Madagascar and Northeastern Mozambique. Mayotte consists of a main island, Grande-Terre (or Maore), a smaller island, Petite-Terre (or Pamanzi), as well as several islets around these two. Mayotte is the most prosperous territory in the Mozambique Channel, making it a major destination for immigration. Mayotte's land area is and, with its 299,348 people according to January 2022 official estimates, is very densely populated at 800 inhabitants per km2 (2,073 per sq mi). The biggest city and prefecture is Mamoudzou on Grande-Terre. The Dzaoudzi–Pamandzi International Airport is located on the neighbouring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terete
Terete is a term in botany used to describe a cross section that is circular, or like a distorted circle, with a single surface wrapping around it.Lichen Vocabulary, Lichens of North America Information, Sylvia and Stephen Sharnoff/ref> This is usually contrasted with cross-sections that are flattened, with a distinct upper surface that is different from the lower surface. The cross-section of a branch in a tree is somewhat round, so the branch is terete. The cross section of a normal leaf has an upper surface, and a lower surface, so the leaf is not terete. However, the fleshy leaves of succulents are sometimes terete. Fruticose lichens are terete, with a roughly circular cross section and a single wrap-around skin-like surface called the cortex, compared to foliose lichen Foliose lichen is one of the morphological classes of lichens, which are complex organisms that arise from the symbiotic relationship between fungi and a photosynthetic partner, typically algae. This p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpoon
A harpoon is a long spear-like instrument and tool used in fishing, whaling, sealing, and other marine hunting to catch and injure large fish or marine mammals such as seals and whales. It accomplishes this task by impaling the target animal and securing it with barb or toggling claws, allowing the fishermen to use a rope or chain attached to the projectile to catch the animal. A harpoon can also be used as a weapon. Certain harpoons are made with different builds to perform better with the type of target being aimed at. For example, the Inuit have short, fixed foreshaft harpoons for hunting seals at their breathing holes while loose shafted ones are made for attaching to the game thrown at. History In the 1990s, harpoon points, known as the Semliki harpoons or the Katanda harpoons, were found in the Katanda region in Zaire (called the Democratic Republic of the Congo today). As the earliest known harpoons, these weapons were made and used 90,000 years ago, most lik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cystocarp
A cystocarp is the fruiting structure produced in the red algae after fertilization, especially such a structure having a special protective envelope (as in ''Polysiphonia)''. The structure from which carpospore A carpospore is a diploid spore produced by red algae. After fertilization, the alga's carpogonium subdivides into carpospores, and generally the largest type of spore (larger than bispores, which are larger again than tetraspores Tetraspores are ...s are released.Maggs, C.A. and Hommersand, M.H. 1993. ''Seaweeds of the British Isles Volume 1 Rhodophyta Part 3A Ceramiales.'' The Natural History Museum, London References {{reflist Algal anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spermatangia
A gametangium (plural: gametangia) is an organ or cell in which gametes are produced that is found in many multicellular protists, algae, fungi, and the gametophytes of plants. In contrast to gametogenesis in animals, a gametangium is a haploid structure and formation of gametes does not involve meiosis. Types of gametangia Depending on the type of gamete produced in a gametangium, several types can be distinguished. Female Female gametangia are most commonly called archegonia. They produce egg cells and are the sites for fertilization. Archegonia are common in algae and primitive plants as well as gymnosperms. In flowering plants, they are replaced by the embryo sac inside the ovule. Male The male gametangia are most commonly called antheridia. They produce sperm cells that they release for fertilization. Antheridia producing non-motile sperm (spermatia) are called spermatangia. Some antheridia do not release their sperm. For example, the oomycete antheridium is a syncytium w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substrate (biology)
In biology, a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae. Inert substrates are used as growing support materials in the hydroponic cultivation of plants. In biology substrates are often activated by the nanoscopic process of substrate presentation. In agriculture and horticulture * Cellulose substrate * Expanded clay aggregate (LECA) * Rock wool * Potting soil * Soil In animal biotechnology Requirements for animal cell and tissue culture Requirements for animal cell and tissue culture are the same as described for plant cell, tissue and organ culture (In Vitro Culture Techniques: The Biotechnological Principles). Desirable requirements are (i) air conditioning of a room, (ii) hot room with temperature recorder, (iii) microsc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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