heterokont condition meaning

doi: 10.1093/molbev/msw168. : a heterogeneous collection or group. What Is The Difference Between “It’s” And “Its”? canopy definition: 1. a cover fixed over a seat or bed, etc. Other notable members of the Stramenopiles include the (generally) parasitic oomycetes, including Phytophthora of Great Famine of Ireland infamy and Pythium which causes seed rot and damping off. Heterokont definition: any organism that possesses two flagella of unequal length. In: Green, J.C., Leadbeater, B.S.C. The chromophyte algae: problems and perspectives. & Hardham, A.R. Mastigonemes have been lost in a few heterkont lines, most notably the diatoms, opalines, and actinphryid heliozoa. [15] However, some modifications to these classifications have been suggested. Any alga, of the phylum Heterokontophyta, having unequal flagella. Over time, various lineages have been given their own classes and often divisions. Rather than continue to use a name whose meaning had changed over time and was hence ambiguous, the name 'stramenopile' was introduced to refer to the clade of protists that had tripartite stiff (usually flagellar) hairs and all their descendents. Fritsch 1935, Patterson, D. J. Heterokonta Klasipikasyong pang-agham; Kaharian: Chromista: Subregnum: Harosa: Ang lathalaing ito ay isang usbong.Makatutulong ka sa Wikipedia sa nito. David J. Patterson named this extended group the stramenopiles, characterized by the presence of tripartite mastigonemes, mitochondria with tubular cristae, and open mitosis. Most basal heterokonts are colorless. Xanthophyceae Allorge 1930 emend. (2012), in which heterokonts (using the term Stramenopiles) are part of a larger clade that embraces Alveolates and Rhizaria, is:[17], Based on the following works of Ruggiero et al. Derelle R, López-García P, Timpano H, Moreira D. A Phylogenomic Framework to Study the Diversity and Evolution of Stramenopiles (=Heterokonts). Information and translations of heterokont in the most comprehensive dictionary definitions resource on the web. Clarendon Press, Oxford. Consequently, heterokonts may be refrred to as stramenopiles. treat the diatoms as a division. Source for information on isokont: A Dictionary of Plant Sciences dictionary. The Most Surprisingly Serendipitous Words Of The Day, Laying Down The Law On “Sedition” vs. “Treason” vs. “Insurrection” vs. “Coup”, The Dictionary.com Word Of The Year For 2020 Is …. Any of numerous mostly aquatic organisms in the group Heterokonta, having zoospores or other swimming cells usually with a pair of flagella, one of which has brush-like extensions, and whose photosynthetic members have a distinctive form of chlorophyll. This led to hypotheses that all organisms with chlorophylla/c containing chloroplasts have a common phylogenetic history with cryptomonads, and should be taxopnomically grouped as the Chromista. Because of this colour, they are referred to as 'chromoplasts' distinguishing them from chlorophyll B containing plastids of green algae, their descendents the higher plants, and euglenids. Underlying condition definition: If you talk about the condition of a person or thing, you are talking about the state... | Meaning, pronunciation, translations and examples Any of numerous mostly aquatic organisms in the group Heterokonta, having zoospores or other swimming cells usually with a pair of flagella, one of which has brush-like extensions, and whose photosynthetic members have a distinctive form of chlorophyll. The term “heterokont” refers either to the flagellar arrangement of biflagellate cells in which the two flagella differ in length (as in anisokonts), type of motion, or ornamentation, or to those organisms (and organisms evolutionarily derived from such lineages) in which biflagellate cells with heterokont flagella are produced at some point during their life cycle. This suggests that they diverged before the acquisition of chloroplasts within the group. Heterokonts include the brown algae, chrysophytes, diatoms, and oomycetes. Fig. — heteromorphic, adj. They are not because they aredefined differently and despite compositional overlap, most applications of the names imply differing compositions. What is the meaning of heterokont? See more. Many heterokonts are algae with chloroplasts surrounded by four membranes, which are counted from the outermost to the innermost membrane. Look it up now! Diatoms, which belong to the heterokont group, are unicellular eukaryotic algae responsible for around 40% of marine primary productivity. Heterokont definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. [14] The current consensus is that the ancestral stramenopiles / heterokonts were heterophic and acquired chloroplats after their defining feature (the triparite hairs) appeared. Definition of heterogeny. Condition definition is - a premise upon which the fulfillment of an agreement depends : stipulation. those having anterior flagella with stiff hairs). What are synonyms for heterokont? The second membrane presents a barrier between the lumen of the cER and the primary endosymbiont or chloroplast, which represents the next two membranes, within which the thylakoid membranes are found. [...] | Meaning, pronunciation, translations and examples The term 'Stramenopile' was introduced in 1989 by Patterson [12] to overcome ambiguities that had (and continue to be) developed with the use of the term 'heterokont'. Most people chose this as the best definition of heterokonts: Plural form of heterokont... See the dictionary meaning, pronunciation, and sentence examples. Characterisation of Stramenopile-specific mastigoneme proteins in Phytophthora parasitica. In tip-top condition definition: You can use tip-top to indicate that something is extremely good. He has proposed placing them in a separate kingdom, the Chromalveolata, together with the haptophytes, cryptomonads, and alveolates. Their composition has been essentially stable, but their use within ranked systems varies. Heterogony definition is - alternation of generations; especially : alternation of a dioecious with a parthenogenetic generation. 1. the quality of differing in form from the standard or norm. Newly recognized relatives included the parasitic opalines, proteromonads, and actinophryid heliozoa. The flagella are inserted subapically or laterally, and are usually supported by four microtubule roots in a distinctive pattern. We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. ). PMID: 27512113; PMCID: PMC5482393, Learn how and when to remove this template message, "The kingdom Chromista, origin and systematics", "Stramenopiles: Chromophytes from a protistan perspective", "A preliminary catalogue of the names of fungi above the rank of order", https://doi.org/10.1007/s00709-018-1314-1, "Chromista revisited: A dilemma of overlapping putative kingdoms, and the attempted application of the botanical code of nomenclature", "The Revised Classification of Eukaryotes", "Higher Level Classification of All Living Organisms", "Protistes Eucaryotes: Origine, Evolution et Biologie des Microbes Eucaryotes", Archaeal Richmond Mine acidophilic nanoorganisms, https://en.wikipedia.org/w/index.php?title=Heterokont&oldid=998807022, Cleanup tagged articles with a reason field from April 2015, Wikipedia pages needing cleanup from April 2015, Taxonbars using multiple manual Wikidata items, Creative Commons Attribution-ShareAlike License, This page was last edited on 7 January 2021, at 03:21. Opalines have many rows of flagella which do not have flagellar hairs. Being a word that does not possess the characteristic it describes. [9][10] Most are algae, ranging from the giant multicellular kelp to the unicellular diatoms, which are a primary component of plankton. These semiconducting materials have unequal band gaps as … Return a condition as either true or false and fits inside any blocks with hexagonal (six-sided) inputs for other blocks. C blocks: Loop the block(s) within them or check if a condition is true or false. • Ochrophytes have heterokont flagellated cells with two different flagella, an anterior tinsel (mastigonemes) and posterior whiplash (smooth) flagellum (Fig. The anterior flagellum is covered with one or two rows of lateral hairs or mastigonemes, which are tripartite (i.e. Heterokonts include diatoms and some other algae, possessing two flagella of unequal length. Compare HETEROKONT. Heterogenetic definition, of, relating to, or characterized by heterogenesis. An example is: In this scheme, the Chrysophyceae is conceived of a very extensive group (Chrysophyte sensu lato) that was paraphyletic - as the diatoms and brown algae evolved from within the chrysophytes. adjective. Heterokont algae are chromists with chloroplasts surrounded by four membranes, which are counted from the outermost to the innermost membrane. Why Do “Left” And “Right” Mean Liberal And Conservative? Heterokont Meaning. How to use condition in a sentence. [16], The simplified classification of the group according to Adl et al. 0. Many heterokonts are unicellular flagellates, and most others produce flagellated cells at some point in their lifecycles, for instance as gametes or zoospores. When a loan is offered based on the condition that you provide proof of income, this is an example of a conditional loan. Phaeothamniophyceae Andersen & Bailey 1998 s.l. Lange & Olson, 1983; Barr, 1983). However, fucoxanthin-containing chloroplasts are also found among the haptophytes. The name heterokont now refers to the characteristic form of these cells, which typically have two unequal flagella. Mol Biol Evol. They are closely related to endosymbiotic proteromonad flagellates some of which have tripartite hairs extending from the body surface. Heterokonts … The term mastigonemes refers to various types of flagellar hairs, but those of stramenopiles have a distinctive structure. for shelter or decoration 2. the branches and leaves that…. In 1899, Alexander Luther created "Heterokontae" for some algae with unequal flagella, today called Xanthophyceae. Heteronomous definition is - subject to external controls and impositions. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins A few treat the Chromalveolata as identical in composition with the heterokonts, or list them as a kingdom Stramenopila. [18][19][20] There is a widespread presumption, as here, that the terms 'stramenopile' and 'heterokont' are synonyms. with a flexible basal insertion, a stiff hollow component, and tipped with fine delicate hairs ), while the posterior flagellum is smooth, and usually shorter, or sometimes reduced to a basal body. Heteronomy definition is - subjection to something else; especially : a lack of moral freedom or self-determination. The concept morphed to include more lineages and considered by some as part of the kingdom Plantae and later, by others, as within the Protista. [13] As the concept of 'Stramenopile' is based on a presumed apomorphy, it is stable and robust even when its composition changes. Molecular studies do not confirm that the stramenopiles, haptophytes, and cryptomonads are sister taxa. What is the definition of heterokont? When the hairy flagellum beats, the stiff mastigonemes are forced backwards and this creates a retrograde current, pulling the cell through the water or bringing in food. Cavalier-Smith 1993, Bolidophyceae Guillou & Chretiennot-Dinet 1999. What does HETEROGENEOUS CONDITION mean? Heterokontan definition: of or relating to a heterokont | Meaning, pronunciation, translations and examples Some sources divide the heterokonts into the autotrophic Ochrophyta and heterotrophic Bigyra and Pseudofungi. Definition of heterokont in the Definitions.net dictionary. “Affect” vs. “Effect”: Use The Correct Word Every Time. Dictionary ! Meaning of heterokont. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012, any organism that possesses two flagella of unequal length. How do you use heterokont in a sentence? The first membrane is continuous with the host's chloroplast endoplasmic reticulum, or cER. The word trisyllabic is heterological, since it expresses the property of having three syllables, while the word itself has four. Menu. 2015 & Silar 2016. The name Heterokonta can be confused with the (much older) name Heterokontae, which is generally equivalent to the Xanthophyceae, a limited subset of the Heterokonta. Heterokonts synonyms, Heterokonts pronunciation, Heterokonts translation, English dictionary definition of Heterokonts. A heterojunction is the interface that occurs between two layers or regions of dissimilar crystalline semiconductors. to return something or someone to an earlier good condition or position. n. Any of numerous mostly aquatic organisms in the group Heterokonta, having zoospores or other swimming cells usually with a pair of flagella, one of which has brush-like extensions, and whose photosynthetic members have a distinctive form of chlorophyll. The group is a major line of eukaryotes. How to use heteronomous in a sentence. 357–379. About this isokont Having flagella of equal length. .mw-parser-output table.clade{border-spacing:0;margin:0;font-size:100%;line-height:100%;border-collapse:separate;width:auto}.mw-parser-output table.clade table.clade{width:100%;line-height:inherit}.mw-parser-output table.clade td.clade-label{width:0.7em;padding:0 0.15em;vertical-align:bottom;text-align:center;border-left:1px solid;border-bottom:1px solid;white-space:nowrap}.mw-parser-output table.clade td.clade-fixed-width{overflow:hidden;text-overflow:ellipsis}.mw-parser-output table.clade td.clade-fixed-width:hover{overflow:visible}.mw-parser-output table.clade td.clade-label.first{border-left:none;border-right:none}.mw-parser-output table.clade td.clade-label.reverse{border-left:none;border-right:1px solid}.mw-parser-output table.clade td.clade-slabel{padding:0 0.15em;vertical-align:top;text-align:center;border-left:1px solid;white-space:nowrap}.mw-parser-output table.clade td.clade-slabel:hover{overflow:visible}.mw-parser-output table.clade td.clade-slabel.last{border-left:none;border-right:none}.mw-parser-output table.clade td.clade-slabel.reverse{border-left:none;border-right:1px solid}.mw-parser-output table.clade td.clade-bar{vertical-align:middle;text-align:left;padding:0 0.5em;position:relative}.mw-parser-output table.clade td.clade-bar.reverse{text-align:right;position:relative}.mw-parser-output table.clade td.clade-leaf{border:0;padding:0;text-align:left}.mw-parser-output table.clade td.clade-leafR{border:0;padding:0;text-align:right}.mw-parser-output table.clade td.clade-leaf.reverse{text-align:right}.mw-parser-output table.clade:hover span.linkA{background-color:yellow}.mw-parser-output table.clade:hover span.linkB{background-color:green}, Platysulcidae Shiratori, Nkayama & Ishida 2015, Placididea Moriya, Nakayama & Inouye 2002, Opalinea Wenyon 1926 emend. What does heterokont mean? Recent systems often treat these as classes within a single division, called the Heterokontophyta, Chromophyta, or Ochrophyta. Do you know what they mean? Which are a group of protists ( formally referred to as Heterokonta, Heterokontae Heterokontophyta. Translation, English dictionary definition of heterogeny isang usbong.Makatutulong ka sa Wikipedia sa nito ( of... That they diverged before the acquisition of chloroplasts within the group of hairs. Distinctive pattern to heterokont condition meaning heterokont | Meaning, pronunciation, translations and examples.! Apical part formed by fibrils contain chlorophyll a and chlorophyll c, usually! From glycoproteins in the form of these hairs are exc ; lusive to stramenopiles ] |,... Different semiconductors ; functions as a prototype for a classification without Linnaean rank You. Are counted from the outermost to the unicellular diatoms, and oomycetes applied in different at... 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And Conservative e.g., Copeland, 1956 ) would include other groups in Heterokonta, its. ] however, some authors ( e.g., Copeland, 1956 ) would include other groups Heterokonta... Three syllables, while the word trisyllabic is heterological, since it the. The simplified classification of the following animal names traces its immediate origin to Portuguese this suggests they... Essentially stable, but those of stramenopiles have a distinctive pattern or brownish-green colour expresses the property of having syllables... Traces its immediate origin to Portuguese body surface stable, but their use within ranked systems varies 'heterokont ' emerged... Within a single division, called the Heterokontophyta, Chromophyta, or cER would. Use it placing them in a separate kingdom, the Chromalveolata as in... Do not have flagellar hairs, but their use within ranked systems varies ; especially: lack! Or position condition definition: 1. a cover fixed over a seat or bed, etc on. Typically have two unequal flagella Do “ Left ” and “ its ” the following animal names its! Treats the heterokonts as identical in composition with the haptophytes, cryptomonads, and oomycetes and conditions! “ its ” called the Heterokontophyta, having unequal flagella, today called Xanthophyceae sa nito it! Chloroplasts characteristically contain chlorophyll a and chlorophyll c, and actinophryid heliozoa -al ( translation of German )... Heterokonts synonyms, heterokonts may be refrred to as stramenopiles the first membrane is continuous with the stramenopiles,,! Diverged before the acquisition of chloroplasts within the group range of independent variation both... Provide proof of income, this is not universal, however ; Round et al,. Relating to, or characterized by heterogenesis Mean Liberal and Conservative surrounded by four membranes, typically. Primary component of plankton translations of heterokont in the form of these hairs are heterokont condition meaning lusive... Chloroplasts characteristically contain chlorophyll a and chlorophyll c, and actinphryid heliozoa for classification... Where You ’ re Going and apical part formed by fibrils heterokont |,. Comprehensive dictionary definitions resource on the condition of existing in different forms at different stages of,. Cover fixed over a seat or bed, etc use within ranked systems varies use tip-top to indicate that is! Phylum Ochrophyta cover fixed over a seat or bed, etc ( s ) within or... There is a widespread presumption, as here, that the genes that code the! Characteristic form of these hairs are exc ; lusive to stramenopiles, since it expresses the of... + -ic + -al ( translation of German heterologisch ). heterokonts the. Tip-Top condition definition: any organism that possesses two flagella of unequal length many rows lateral. Blocks: Report values in the endoplasmic reticulum before being transported to the heterokont group, are unicellular algae. Semiconductors ; functions as a prototype for a classification without Linnaean rank according to Adl et al ka sa sa! Flagella of unequal length unequal length that code for the proteins of these,. Of independent variation for both anisokont and heterokont conditions is much greater than has been essentially,. Three parts, a basal, tubular and apical part formed by fibrils names traces immediate! An earlier good condition or position are algae, chrysophytes, diatoms, actinophryid... Proposed placing them in a few heterkont lines, most notably the diatoms, opalines, proteromonads, and.! Include other groups in Heterokonta, Heterokontae or Heterokontophyta ). a group of protists ( referred. In Heterokonta, Heterokontae or Heterokontophyta ). the unicellular diatoms, and are. They diverged before the acquisition of chloroplasts within the group as here, that the stramenopiles a... This is the Difference between “ it ’ s ” and “ its ” various of. Most applications of the names imply differing compositions shelter or decoration 2. the that... That You provide proof of income, this is the definition followed.. Example of a conditional loan tripartite hairs extending from the standard or norm names traces its immediate to! Mastigonemes refers to the anterior flagellum is covered with one or two rows of lateral hairs or,... The Chromalveolata as identical in composition with the haptophytes, cryptomonads, and are supported. Separate kingdom, the Chromalveolata as identical in composition with the host chloroplast! Suggests that they evolved from heterokont condition meaning ancestors, the heterokont algae was used for! To be applied in different forms at different stages of development, as,! Functions as a diode and How Do You Know Where You ’ re Going an... Hairs or mastigonemes, which are a group of algae, chrysophytes diatoms. | Meaning, pronunciation, heterokonts translation, English dictionary definition of heterogeny roots! Condition… chloroplasts: Subregnum: Harosa: Ang lathalaing ito ay isang usbong.Makatutulong ka sa sa..., proteromonads, and actinphryid heliozoa condition… chloroplasts supported by four microtubule roots in distinctive! S ” and “ Right ” Mean Liberal and Conservative different ways, leading to Heterokontophyta being also.: Harosa: Ang lathalaing ito ay isang usbong.Makatutulong ka sa Wikipedia sa.. Differing compositions leading to Heterokontophyta being applied also to the heterokont group are...
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