GLUTAMINE INVOLVEMENT IN NITROGEN CONTROL OF GIBBERELLIC-ACID PRODUCTION IN GIBBERELLA-FUJIKUROI

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dc.contributor.authorMUNOZ, GA
dc.contributor.authorAGOSIN, E
dc.date.accessioned2024-01-10T13:13:22Z
dc.date.available2024-01-10T13:13:22Z
dc.date.issued1993
dc.description.abstractWhen the fungus Gibberella fujikuroi ATCC 12616 was groWn in fermentor cultures, both intracellular kaurene biosynthetic activities and extracellular GA3 accumulation reached high levels when exogenous nitrogen was depleted in the culture. Similar patterns were exhibited by several nonrelated enzymatic activities, such as formamidase and urease, suggesting that all are subject to nitrogen regulation. The behavior of the enzymes involved in nitrogen assimilation (glutamine synthetase, glutamate dehydrogenase, and glutamate synthase) during fungal growth in different nitrogen sources suggests that glutamine is the final product of nitrogen assimilation in G. fujikuroi. When ammonium or glutamine was added to hormone-producing cultures, extracellular GA3 did not accumulate. However, when the conversion of ammonium into glutamine was inhibited by L-methionine-DL-sulfoximine, only glutamine maintained this effect. These results suggest that glutamine may well be the metabolite effector in nitrogen repression of GA3 synthesis, as well as in other nonrelated enzymatic activities in G. fujikuroi.
dc.fechaingreso.objetodigital2024-06-25
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.issn0099-2240
dc.identifier.pubmedidMEDLINE:16349128
dc.identifier.urihttps://doi.org/10.1128/aem.59.12.4317-4322.1993
dc.identifier.wosidWOS:A1993MK85400048
dc.information.autorucIngeniería;Agosin E;S/I;99630
dc.issue.numero12
dc.language.isoen
dc.nota.accesoContenido completo
dc.pagina.final4322
dc.pagina.inicio4317
dc.publisherAMER SOC MICROBIOLOGY
dc.revistaAPPLIED AND ENVIRONMENTAL MICROBIOLOGY
dc.rightsacceso abierto
dc.subjectNEUROSPORA-CRASSA
dc.subjectASPERGILLUS-NIDULANS
dc.subjectFUSARIUM-MONILIFORME
dc.subjectAMMONIUM ASSIMILATION
dc.subjectCONIDIAL GERMINATION
dc.subjectBIOSYNTHESIS
dc.subjectPURIFICATION
dc.subjectREPRESSION
dc.subjectMETABOLISM
dc.subjectSYNTHASE
dc.titleGLUTAMINE INVOLVEMENT IN NITROGEN CONTROL OF GIBBERELLIC-ACID PRODUCTION IN GIBBERELLA-FUJIKUROI
dc.typeartículo
dc.volumen59
sipa.codpersvinculados99630
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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