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Diaphanoeca Grandis
''Diaphanoeca grandis'' is a species of choanoflagellate in the family Acanthoecidae which is the type species of the genus ''Diaphanoeca''. It is a Unicellular organism, unicellular micro-heterotroph with a large protective Lorica (biology), lorica that is found beneath sea ice in a wide distribution. Description The overall size of ''Diaphanoeca grandis'' depends on its Cell growth, stage of growth. This variability of size is distinct to ''D. grandis'' and is not present in other related species. During the period of highest growth rate, the cell is larger, measuring on average 6 Micrometre, micrometers (μm) in diameter. When ''D. grandis'' is in phases of lower or stationary growth, it is one-third to half the volume of its largest size and is roughly 4 μm in diameter. Lorica ''Diaphanoeca grandis'' has a large Lorica (biology), lorica, or protective outer covering, that surrounds the cell. It is an oval shape with a narrow neck, and when it is dried out it becomes coni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Choanoflagellate
The choanoflagellates are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of the animals. Choanoflagellates are collared flagellates, having a funnel shaped collar of interconnected microvilli at the base of a flagellum. Choanoflagellates are capable of both asexual and sexual reproduction. They have a distinctive cell morphology characterized by an ovoid or spherical cell body 3–10 µm in diameter with a single apical flagellum surrounded by a collar of 30–40 microvilli (see figure). Movement of the flagellum creates water currents that can propel free-swimming choanoflagellates through the water column and trap bacteria and detritus against the collar of microvilli, where these foodstuffs are engulfed. This feeding provides a critical link within the global carbon cycle, linking trophic levels. In addition to their critical ecological roles, choanoflagellates are of particular interest to evolutionary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesh
A mesh is a barrier made of connected strands of metal, fiber, or other flexible or ductile materials. A mesh is similar to a web or a net in that it has many attached or woven strands. Types * A plastic mesh may be extruded, oriented, expanded, woven or tubular. It can be made from polypropylene, polyethylene, nylon, PVC or PTFE. * A metal mesh may be woven, knitted, welded, expanded, sintered, photo-chemically etched or electroformed (screen filter) from steel or other metals. * In clothing, mesh is loosely woven or knitted fabric that has many closely spaced holes. Knitted mesh is frequently used for modern sports jerseys and other clothing like hosiery and lingerie * A mesh skin graft is a skin patch that has been cut systematically to create a mesh. Meshing of skin grafts provides coverage of a greater surface area at the recipient site, and also allows for the egress of serous or sanguinous fluid. However, it results in a rather pebbled appearance upon healing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacteria
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationsh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sieve
A sieve, fine mesh strainer, or sift, is a device for separating wanted elements from unwanted material or for controlling the particle size distribution of a sample, using a screen such as a woven mesh or net or perforated sheet material. The word ''sift'' derives from ''sieve''. In cooking, a sifter is used to separate and break up clumps in dry ingredients such as flour, as well as to aerate and combine them. A strainer (see Colander), meanwhile, is a form of sieve used to separate suspended solids from a liquid by filtration. Industrial strainer Some industrial strainers available are simplex basket strainers, duplex basket strainers, T-strainers and Y-strainers. Simple basket strainers are used to protect valuable or sensitive equipment in systems that are meant to be shut down temporarily. Some commonly used strainers are bell mouth strainers, foot valve strainers, basket strainers. Most processing industries (mainly pharmaceutical, coatings and liquid food indu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Filter Feeder
Filter feeders are a sub-group of suspension feeding animals that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure. Some animals that use this method of feeding are clams, krill, sponges, baleen whales, and many fish (including some sharks). Some birds, such as flamingos and certain species of duck, are also filter feeders. Filter feeders can play an important role in clarifying water, and are therefore considered ecosystem engineers. They are also important in bioaccumulation and, as a result, as indicator organisms. Fish Most forage fish are filter feeders. For example, the Atlantic menhaden, a type of herring, lives on plankton caught in midwater. Adult menhaden can filter up to four gallons of water a minute and play an important role in clarifying ocean water. They are also a natural check to the deadly red tide. Extensive article on the role of menhaden in the ecosystem and possible resul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphanoeca Spiralifurca
''Diaphanoeca'' is a genus of choanoflagellates belonging to the family Acanthoecidae. Species: *'' Diaphanoeca aperta'' *'' Diaphanoeca cylindrica'' *'' Diaphanoeca fiordensis'' *''Diaphanoeca grandis ''Diaphanoeca grandis'' is a species of choanoflagellate in the family Acanthoecidae which is the type species of the genus ''Diaphanoeca''. It is a Unicellular organism, unicellular micro-heterotroph with a large protective Lorica (biology), lor ...'' *'' Diaphanoeca multiannulata'' *'' Diaphanoeca parva'' *'' Diaphanoeca pedicellata'' *'' Diaphanoeca sphaerica'' *'' Diaphanoeca undulata'' References {{Taxonbar, from=Q87704268 Choanoflagellatea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphanoeca Multiannulata
''Diaphanoeca'' is a genus of choanoflagellates belonging to the family Acanthoecidae. Species: *'' Diaphanoeca aperta'' *'' Diaphanoeca cylindrica'' *'' Diaphanoeca fiordensis'' *''Diaphanoeca grandis ''Diaphanoeca grandis'' is a species of choanoflagellate in the family Acanthoecidae which is the type species of the genus ''Diaphanoeca''. It is a Unicellular organism, unicellular micro-heterotroph with a large protective Lorica (biology), lor ...'' *'' Diaphanoeca multiannulata'' *'' Diaphanoeca parva'' *'' Diaphanoeca pedicellata'' *'' Diaphanoeca sphaerica'' *'' Diaphanoeca undulata'' References {{Taxonbar, from=Q87704268 Choanoflagellatea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphanoeca Cylindrica
''Diaphanoeca'' is a genus of choanoflagellates belonging to the family Acanthoecidae. Species: *'' Diaphanoeca aperta'' *'' Diaphanoeca cylindrica'' *'' Diaphanoeca fiordensis'' *''Diaphanoeca grandis'' *''Diaphanoeca multiannulata ''Diaphanoeca'' is a genus of choanoflagellates belonging to the family Acanthoecidae. Species: *'' Diaphanoeca aperta'' *'' Diaphanoeca cylindrica'' *'' Diaphanoeca fiordensis'' *''Diaphanoeca grandis ''Diaphanoeca grandis'' is a species ...'' *'' Diaphanoeca parva'' *'' Diaphanoeca pedicellata'' *'' Diaphanoeca sphaerica'' *'' Diaphanoeca undulata'' References {{Taxonbar, from=Q87704268 Choanoflagellatea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinolina Isefiordensis
''Crinolina isefiordensis'' is a species of choanoflagellate in the family Acanthoecidae. It is the type species of the genus '' Crinolina'' and is named for the first location of its collection, the Ise Fjord in Denmark. Description ''Crinolina isefiordensis'' is a single-celled organism that lives in a skirt-shaped lorica (net-like structure) which is open on both ends. The protoplast of the type specimen measured 8 microns by 5 microns and it does not have a chloroplast. It has a flagellum between 2-3 times as long as the protoplasts which is ringed by a collar of tentacles inside the lorica. The lorica is even longer, up to 30 microns, and is twice as wide at the base as the neck. The lorica consists of around a dozen costae (filaments that create the exoskeleton) which are roughly straight and connect the costal rings at the base and neck. Each costa is made up of six or seven small strips that are joined. At the neck of the lorica, these costae end in spines that project ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphanoeca Sphaerica
''Diaphanoeca'' is a genus of choanoflagellates belonging to the family Acanthoecidae. Species: *'' Diaphanoeca aperta'' *''Diaphanoeca cylindrica'' *'' Diaphanoeca fiordensis'' *''Diaphanoeca grandis'' *''Diaphanoeca multiannulata ''Diaphanoeca'' is a genus of choanoflagellates belonging to the family Acanthoecidae. Species: *'' Diaphanoeca aperta'' *'' Diaphanoeca cylindrica'' *'' Diaphanoeca fiordensis'' *''Diaphanoeca grandis ''Diaphanoeca grandis'' is a species ...'' *'' Diaphanoeca parva'' *'' Diaphanoeca pedicellata'' *'' Diaphanoeca sphaerica'' *'' Diaphanoeca undulata'' References {{Taxonbar, from=Q87704268 Choanoflagellatea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagellum
A flagellum (; ) is a hairlike appendage that protrudes from certain plant and animal sperm cells, and from a wide range of microorganisms to provide motility. Many protists with flagella are termed as flagellates. A microorganism may have from one to many flagella. A gram-negative bacterium ''Helicobacter pylori'' for example uses its multiple flagella to propel itself through the mucus lining to reach the stomach epithelium, where it may cause a gastric ulcer to develop. In some bacteria the flagellum can also function as a sensory organelle, being sensitive to wetness outside the cell. Across the three domains of Bacteria, Archaea, and Eukaryota the flagellum has a different structure, protein composition, and mechanism of propulsion but shares the same function of providing motility. The Latin word means " whip" to describe its lash-like swimming motion. The flagellum in archaea is called the archaellum to note its difference from the bacterial flagellum. Eukaryotic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microswimmer
A microswimmer is a microscopic object with the ability to move in a fluid environment. Natural microswimmers are found everywhere in the natural world as biological microorganisms, such as bacteria, archaea, protists, sperm and microanimals. Since the turn of the millennium there has been increasing interest in manufacturing synthetic and biohybrid microswimmers. Although only two decades have passed since their emergence, they have already shown promise for various biomedical and environmental applications. Given the recent nature of the field, there is yet no consensus in the literature for the nomenclature of the microscopic objects this article refers to as "microswimmers". Among the many alternative names such objects are given in the literature, microswimmers, micro/nanorobots and micro/nanomotors are likely the most frequently encountered. Other common terms may be more descriptive, including information about the object shape, e.g., microtube or microhelix, its components ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
