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http://dbpedia.org/ontology/abstract 深红红螺菌(学名:Rhodospirillum rubrum)為红螺菌科红螺菌属的一种革兰氏阴性菌。是红螺菌属的模式种。生长于曝光的滞水和泥中,生活于阳光充足的静水等处。此菌可用于有机废水的净化,并生产单细胞蛋白等。 , Rhodospirillum rubrum (лат.) — вид грамотрицательных пурпурных бактерий из семейства Rhodospirillaceae класса альфа-протеобактерий. , Rhodospirillum rubrum (R. rubrum) is a GraRhodospirillum rubrum (R. rubrum) is a Gram-negative, pink-coloured bacterium, with a size of 800 to 1000 nanometers. It is a facultative anaerobe, thus capable of using oxygen for aerobic respiration under aerobic conditions, or an alternative terminal electron acceptor for anaerobic respiration under anaerobic conditions. Alternative terminal electron acceptors for R. rubrum include dimethyl sulfoxide or trimethylamine oxide. Under aerobic growth photosynthesis is genetically suppressed and R. rubrum is then colorless. After the exhaustion of oxygen, R. rubrum immediately starts the production of photosynthesis apparatus including membrane proteins, bacteriochlorophylls and carotenoids, i.e. the bacterium becomes photosynthesis active. The repression mechanism for the photosynthesis is poorly understood. The photosynthesis of R. rubrum differs from that of plants as it possesses not chlorophyll a, but bacteriochlorophylls. While bacteriochlorophyll can absorb light up to a maximum wavelength of 800 to 925 nm, chlorophyll absorbs light having a maximum wavelength of 660 to 680 nm. R. rubrum is a spiral-shaped bacterium (spirillum, plural form: spirilla). R. rubrum is also a nitrogen fixing bacterium, i.e., it can express and regulate nitrogenase, a protein complex that can catalyse the conversion of atmospheric dinitrogen into ammonia. When the bacteria are exposed to ammonia, darkness, and phenazine methosulfate, nitrogen fixation stops. Due to this important property, R. rubrum has been the test subject of many different groups, so as to understand the complex regulatory schemes required for this reaction to occur. It was in R. rubrum that, for the first time, post-translational regulation of nitrogenase was demonstrated. Nitrogenase is modified by an ADP-ribosylation in the arginine residue 101 (Arg101) in response to the so-called "switch-off" effectors - glutamine or ammonia - and darkness. R. rubrum has several potential uses in biotechnology: * Quantitative accumulation of PHB (polyhydroxybutyrate) precursors in the cell for the production of bioplastic. * Production of biological hydrogen fuel. * Model system for studying the conversion from light energy to chemical energy and regulatory pathways of the nitrogen fixation system. pathways of the nitrogen fixation system. , Rhodospirillum rubrum bakterio Gram negatiRhodospirillum rubrum bakterio Gram negatiboa da, genorokoa, espirilo itxura duena (bakterio kiribila da). 800-1000 nanometroen luzera du. Muturreko flageloak ditu (kokapen polarra) eta mugikorra da . Uretan bizi ohi da. Bakterio hau fotosintesi bakteriarra egiteko gai da, eta kolore purpura du (dituen karotenoideek emanda). Halere, fotosintesian ez du SH2 erabiltzen elektroien emaile bezala, H2 (hidrogeno molekularra) baizik. Horregatik, bakterio purpura ez-sufreduna da . Metabolismo oso berezia du Rhodospirillum rubrum-ek, eta horretan datza haren berezitasuna: anaerobio fakultatiboa da, hots, oxigenoarekin zein oxigenorik gabe bizi daiteke. Giro aerobio batean arnasketa aerobioa egiten du eta kimiorganotrofo bezala jardun. Giro anaerobioan, hartzidura alkoholikoa burutzen du ebergia kimikoa (ATP) lortzeko. Bigarren kasu honetan fotosintesi bakteriarra ere egiten du, dituen bakterioklorofilei esker (gogoratu fotosintesi bakteriarra beti anaerobioa dela ). Modu autotrofo zein heterotrofoan hazi daiteke. Ingurugiroan oxigeno dagoenean R. rubrum-ek ez du fotosintesia egiten, arnasketa aerobioa baizik, eta ez ditu pigmentu fotosintetikoak (bakterioklorofilak, karotenoideak) sintetizatzen, bakterioak behar ez dituelako. Ondorioz, berezko kolore purpura galtzen du. Beste berezitasun metabolikoa dauka bakterio honek: nitrogenoaren finkapena ere egiten du . Nitrogenoaren finkapen prozesua ikertzeko eta prozesu horretan nitrogenasa entzimak duen funtsezko zeregina hobeto ulertzeko ikerketa asko egin dira laborategian Rhodospirillum rubrumekin.ra laborategian Rhodospirillum rubrumekin. , Rhodospirillum rubrum és un proteobacteri Rhodospirillum rubrum és un proteobacteri gram negatiu, acolorit de rosa amb una mida de 800 a 1000 nanòmetres. És un anaerobi facultatiu i per tant pot usar la fermentació alcohòlica sota baixes concentracions d'oxigen o usar la respiració cel·lular en condicions aeròbies. Sota el creixement aerobi la fotosíntesi es suprimeix genèticament i el R. rubrum aleshores és incolor. La fotosíntesi de R. rubrum difereix de la de les plantes pel fet que no té clorofil·la a, sinó . R. rubrum és un bacteri amb forma d'espiral (spirillum). R. rubrum també fa la fixació del nitrogen entre d'altres). R. rubrum té usos en biotecnologia: * Producció biològica de plàstic * Producció d'hidrogen co combustible * Model científic per l'estudi de la conversió d'eneia lumínica en energia química i vies del sistema de fixació del nitrogen. vies del sistema de fixació del nitrogen. , Rhodospirillum rubrum (Esmarch 1887) MolisRhodospirillum rubrum (Esmarch 1887) Molisch 1907 è un batterio, più precisamente un probatterio, Gram-negativo. È un anaerobio facoltativo, può quindi utilizzare ossigeno per la respirazione aerobica o effettuare la fermentazione alcolica in condizioni di scarsità di ossigeno. Di colore rosa, in condizioni di crescita aerobica la fotosintesi anossigenica è geneticamente soppressa e R. rubrum è incolore. Dopo l'esaurimento dell'ossigeno, R. rubrum avvia immediatamente la produzione dell'apparato di fotosintesi comprendente proteine di membrana, batterioclorofille e carotenoidi, ovvero il batterio diventa attivo nella fotosintesi. La fotosintesi di R. rubrum differisce da quella delle piante in quanto non possiede clorofilla a, ma batterioclorofille. Mentre la batterioclorofilla può assorbire la luce fino a una lunghezza d'onda massima da 800 a 925 nm, la clorofilla assorbe la luce con una lunghezza d'onda massima da 660 a 680 nm. R. rubrum è anche un batterio azotofissatore, cioè può esprimere e regolare la nitrogenasi, un complesso proteico in grado di catalizzare la conversione dell'azoto atmosferico (inutilizzabile dalla maggior parte degli organismi) in ammoniaca (utilizzabile per le proteine). A causa di questa importante proprietà, R. rubrum è stato un organismo modello per lo studio della fissazione dell'azoto, in modo da comprendere i complessi schemi regolatori necessari affinché questa reazione si verifichi. È stato in R. rubrum infatti che, per la prima volta, è stata dimostrata la regolazione post-traduzionale della nitrogenasi. La nitrogenasi è modificata da una ribosilazione dell'ADP nel residuo di arginina 101 (Arg101) in risposta ai cosiddetti fattori di "spegnimento" - glutammina o ammoniaca - e all'oscurità.- glutammina o ammoniaca - e all'oscurità.
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rdfs:comment Rhodospirillum rubrum (лат.) — вид грамотрицательных пурпурных бактерий из семейства Rhodospirillaceae класса альфа-протеобактерий. , Rhodospirillum rubrum (Esmarch 1887) MolisRhodospirillum rubrum (Esmarch 1887) Molisch 1907 è un batterio, più precisamente un probatterio, Gram-negativo. È un anaerobio facoltativo, può quindi utilizzare ossigeno per la respirazione aerobica o effettuare la fermentazione alcolica in condizioni di scarsità di ossigeno. La fotosintesi di R. rubrum differisce da quella delle piante in quanto non possiede clorofilla a, ma batterioclorofille. Mentre la batterioclorofilla può assorbire la luce fino a una lunghezza d'onda massima da 800 a 925 nm, la clorofilla assorbe la luce con una lunghezza d'onda massima da 660 a 680 nm. lunghezza d'onda massima da 660 a 680 nm. , 深红红螺菌(学名:Rhodospirillum rubrum)為红螺菌科红螺菌属的一种革兰氏阴性菌。是红螺菌属的模式种。生长于曝光的滞水和泥中,生活于阳光充足的静水等处。此菌可用于有机废水的净化,并生产单细胞蛋白等。 , Rhodospirillum rubrum és un proteobacteri Rhodospirillum rubrum és un proteobacteri gram negatiu, acolorit de rosa amb una mida de 800 a 1000 nanòmetres. És un anaerobi facultatiu i per tant pot usar la fermentació alcohòlica sota baixes concentracions d'oxigen o usar la respiració cel·lular en condicions aeròbies. Sota el creixement aerobi la fotosíntesi es suprimeix genèticament i el R. rubrum aleshores és incolor. La fotosíntesi de R. rubrum difereix de la de les plantes pel fet que no té clorofil·la a, sinó . R. rubrum és un bacteri amb forma d'espiral (spirillum). R. rubrum també fa la fixació del nitrogen entre d'altres).a la fixació del nitrogen entre d'altres). , Rhodospirillum rubrum bakterio Gram negatiRhodospirillum rubrum bakterio Gram negatiboa da, genorokoa, espirilo itxura duena (bakterio kiribila da). 800-1000 nanometroen luzera du. Muturreko flageloak ditu (kokapen polarra) eta mugikorra da . Uretan bizi ohi da. Bakterio hau fotosintesi bakteriarra egiteko gai da, eta kolore purpura du (dituen karotenoideek emanda). Halere, fotosintesian ez du SH2 erabiltzen elektroien emaile bezala, H2 (hidrogeno molekularra) baizik. Horregatik, bakterio purpura ez-sufreduna da .egatik, bakterio purpura ez-sufreduna da . , Rhodospirillum rubrum (R. rubrum) is a GraRhodospirillum rubrum (R. rubrum) is a Gram-negative, pink-coloured bacterium, with a size of 800 to 1000 nanometers. It is a facultative anaerobe, thus capable of using oxygen for aerobic respiration under aerobic conditions, or an alternative terminal electron acceptor for anaerobic respiration under anaerobic conditions. Alternative terminal electron acceptors for R. rubrum include dimethyl sulfoxide or trimethylamine oxide. R. rubrum has several potential uses in biotechnology:s several potential uses in biotechnology:
rdfs:label Rhodospirillum rubrum , 深红红螺菌
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