Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/51686
Campo DC Valoridioma
dc.contributor.authorMartel, Anteraen_US
dc.contributor.authorJansson, Evaen_US
dc.contributor.authorGarcía-Reina, Guillermoen_US
dc.contributor.authorLindblad, Peteren_US
dc.date.accessioned2018-11-25T02:55:11Z-
dc.date.available2018-11-25T02:55:11Z-
dc.date.issued1993en_US
dc.identifier.issn0302-8933en_US
dc.identifier.urihttp://hdl.handle.net/10553/51686-
dc.description.abstractArginase, ornithine carbamoyl transferase (OCT) and arginine deiminase activities were found in cell-free extracts of Nostoc PCC 73102, a free-living cyanobacterium originally isolated from the cycad Macrozamia. Addition of either arginine, ornithine or citrulline to the growth medium induced significant changes in their in vitro activities. Moreover, growth in darkness, compared to in light, induced higher in vitro activities. The in vitro activities of arginase and arginine deiminase, two catabolic enzymes primarily involved in the breakdown of arginine, increased substantially by a combination of growth in darkness and addition of either arginine, or ornithine, to the growth medium. The most significant effects on the in vitro OCT activities where observed in cells grown with the addition of ornithine. Cells grown in darkness exhibited about 6% of the in vivo nitrogenase activity observed in cells grown in light. However, addition of external carbon (glucose and fructose) to cells grown in darkness resulted in in vivo nitrogenase activity levels similar to, or even higher than, cells grown in light. Growth with high in vivo nitrogenase activity or in darkness with the addition of external carbon, resulted in repressed levels of in vitro arginase and arginine deiminase activities. It is suggested that nitrogen starvation induces a mobilization of the stored nitrogen, internal release of the amino compound arginine, and an induction of two catabolic enzymes arginase and arginine deiminase. A similar and even more pronunced induction can be observed by addition of external arginine to the growth medium.en_US
dc.languageengen_US
dc.publisher0302-8933-
dc.relation.ispartofArchives of Microbiologyen_US
dc.sourceArchives of Microbiology [ISSN 0302-8933], v. 159, p. 506-511en_US
dc.subject2414 Microbiologíaen_US
dc.subject.otherCianobacteriasen_US
dc.titleOrnithine cycle in Nostoc PCC 73102. Arginase, OCT and arginine deiminase, and the effects of addition of external arginine, ornithine, or citrullineen_US
dc.typeinfo:eu-repo/semantics/Articleen_US
dc.typeArticleen_US
dc.identifier.doi10.1007/BF00249027en_US
dc.identifier.scopus0027159634-
dc.identifier.isiA1993LF29200003-
dc.contributor.authorscopusid7102242155-
dc.contributor.authorscopusid7102590741-
dc.contributor.authorscopusid6603367985-
dc.contributor.authorscopusid7006579601-
dc.description.lastpage511en_US
dc.description.firstpage506en_US
dc.relation.volume159en_US
dc.investigacionCienciasen_US
dc.type2Artículoen_US
dc.contributor.daisngid5509228-
dc.contributor.daisngid3643502-
dc.contributor.daisngid1482151-
dc.contributor.daisngid164019-
dc.utils.revisionen_US
dc.contributor.wosstandardWOS:MARTEL, A-
dc.contributor.wosstandardWOS:JANSSON, E-
dc.contributor.wosstandardWOS:GARCIAREINA, G-
dc.contributor.wosstandardWOS:LINDBLAD, P-
dc.date.coverdateJunio 1993en_US
dc.identifier.ulpgces
dc.description.scieSCIE
item.fulltextSin texto completo-
item.grantfulltextnone-
crisitem.author.deptGIR IOCAG: Oceanografía Biológica y Algología Aplicada-
crisitem.author.deptIU de Oceanografía y Cambio Global-
crisitem.author.orcid0000-0002-7450-0505-
crisitem.author.parentorgIU de Oceanografía y Cambio Global-
crisitem.author.fullNameMartel Quintana,Antera De Jesús-
crisitem.author.fullNameGarcia-Blairsy Reina, Guillermo-
Colección:Artículos
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