Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa
- Autores
- Alfaro, Juan Manuel; Reyes, Sarita Isabel; Martearena, Maria Rita; Blanco, Silvia Cristina; Baigori, Mario Domingo; Pera, Licia Maria
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- The cell wall is a complex and dynamic structure. It is also a site of diverse enzyme activities. The balance between its synthesis and lysis is critical, since wall synthesis in the absence of lysis can cause excessive wall thickening and possible growth arrest; while, lysis in the absence of synthesis would produce bursting of the cell. Therefore, within permissible limits, the net balance between wall synthesis and wall lysis will exert a marked influence on the cell growth and morphology. In this work, the b-D-glucosidase activity was firstly selected as a marker of the wall lytic potential of both Rhodotorula glutinis and Rhodotorula mucilaginosa using p-nitrophenyl-β-D-glucopyranoside as substrate. Secondly, a doses-response study involving several metal ions was conducted; as a result, the FeCl3 and MnCl2 significant increased the biomass-bound β-D-glucosidase activity from R. glutinis and R. mucilaginosa, respectively. Thirdly, to test the influence of each metal ion, 6 mM of either FeCl3 (for R. mucilaginosa) or MnCl2 (for R. glutinis) was supplemented to a medium with lower nitrogen content (MLN). The MLN without any addition was taken as the control. Cultures were incubated at 30°C and 180 rpm during six days. Thus, the major and minor diameter of R. mucilaginosa increased from 3.40 ± 0.23 μm to 5.28 ± 0.40 μm and from 2.60 ± 0.23 μm to 5.20 ± 0.55 μm, respectively, in the presence of 6 mM FeCl3. And, the major and minor diameter of R. glutinis increased from 4,90 ± 0.47 μm to 5.48 ± 0.42 μm and from 2.23 ± 0.53 μm to 4.95 ± 0.49 μm, respectively, in the presence of 6 mM MnCl2. So, from these results it might be concluded that the supplementation of either FeCl3 or MnCl2 to the culture medium induced morphological changes in both oleaginous yeasts. In addition, the biomass and lipid concentration obtained after fermentations were also discussed.
Fil: Alfaro, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
Fil: Reyes, Sarita Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
Fil: Martearena, Maria Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
Fil: Blanco, Silvia Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina
Fil: Baigori, Mario Domingo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina
Fil: Pera, Licia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina
XII Congreso Argentino de Microbiología General
San Miguel de Tucumán
Argentina
Asociación Civil de Microbiología General - Materia
-
RHODOTORULA GLUTINIS
RHODOTORULA MUCILAGINOSA
METAL IONS
GLUCOSIDASE
CELL MORPHOLOGY - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/188205
Ver los metadatos del registro completo
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Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosaAlfaro, Juan ManuelReyes, Sarita IsabelMartearena, Maria RitaBlanco, Silvia CristinaBaigori, Mario DomingoPera, Licia MariaRHODOTORULA GLUTINISRHODOTORULA MUCILAGINOSAMETAL IONSGLUCOSIDASECELL MORPHOLOGYhttps://purl.org/becyt/ford/2.9https://purl.org/becyt/ford/2The cell wall is a complex and dynamic structure. It is also a site of diverse enzyme activities. The balance between its synthesis and lysis is critical, since wall synthesis in the absence of lysis can cause excessive wall thickening and possible growth arrest; while, lysis in the absence of synthesis would produce bursting of the cell. Therefore, within permissible limits, the net balance between wall synthesis and wall lysis will exert a marked influence on the cell growth and morphology. In this work, the b-D-glucosidase activity was firstly selected as a marker of the wall lytic potential of both Rhodotorula glutinis and Rhodotorula mucilaginosa using p-nitrophenyl-β-D-glucopyranoside as substrate. Secondly, a doses-response study involving several metal ions was conducted; as a result, the FeCl3 and MnCl2 significant increased the biomass-bound β-D-glucosidase activity from R. glutinis and R. mucilaginosa, respectively. Thirdly, to test the influence of each metal ion, 6 mM of either FeCl3 (for R. mucilaginosa) or MnCl2 (for R. glutinis) was supplemented to a medium with lower nitrogen content (MLN). The MLN without any addition was taken as the control. Cultures were incubated at 30°C and 180 rpm during six days. Thus, the major and minor diameter of R. mucilaginosa increased from 3.40 ± 0.23 μm to 5.28 ± 0.40 μm and from 2.60 ± 0.23 μm to 5.20 ± 0.55 μm, respectively, in the presence of 6 mM FeCl3. And, the major and minor diameter of R. glutinis increased from 4,90 ± 0.47 μm to 5.48 ± 0.42 μm and from 2.23 ± 0.53 μm to 4.95 ± 0.49 μm, respectively, in the presence of 6 mM MnCl2. So, from these results it might be concluded that the supplementation of either FeCl3 or MnCl2 to the culture medium induced morphological changes in both oleaginous yeasts. In addition, the biomass and lipid concentration obtained after fermentations were also discussed.Fil: Alfaro, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; ArgentinaFil: Reyes, Sarita Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; ArgentinaFil: Martearena, Maria Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; ArgentinaFil: Blanco, Silvia Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; ArgentinaFil: Baigori, Mario Domingo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaFil: Pera, Licia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; ArgentinaXII Congreso Argentino de Microbiología GeneralSan Miguel de TucumánArgentinaAsociación Civil de Microbiología GeneralAsociación Civil de Microbiología General2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/188205Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa; XII Congreso Argentino de Microbiología General; San Miguel de Tucumán; Argentina; 2017; 1-4CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://samige.org.ar/wp-content/uploads/2022/10/Libro-SAMIGE-2017.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:53Zoai:ri.conicet.gov.ar:11336/188205instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:01:53.469CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
title |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
spellingShingle |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa Alfaro, Juan Manuel RHODOTORULA GLUTINIS RHODOTORULA MUCILAGINOSA METAL IONS GLUCOSIDASE CELL MORPHOLOGY |
title_short |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
title_full |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
title_fullStr |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
title_full_unstemmed |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
title_sort |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa |
dc.creator.none.fl_str_mv |
Alfaro, Juan Manuel Reyes, Sarita Isabel Martearena, Maria Rita Blanco, Silvia Cristina Baigori, Mario Domingo Pera, Licia Maria |
author |
Alfaro, Juan Manuel |
author_facet |
Alfaro, Juan Manuel Reyes, Sarita Isabel Martearena, Maria Rita Blanco, Silvia Cristina Baigori, Mario Domingo Pera, Licia Maria |
author_role |
author |
author2 |
Reyes, Sarita Isabel Martearena, Maria Rita Blanco, Silvia Cristina Baigori, Mario Domingo Pera, Licia Maria |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
RHODOTORULA GLUTINIS RHODOTORULA MUCILAGINOSA METAL IONS GLUCOSIDASE CELL MORPHOLOGY |
topic |
RHODOTORULA GLUTINIS RHODOTORULA MUCILAGINOSA METAL IONS GLUCOSIDASE CELL MORPHOLOGY |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.9 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
The cell wall is a complex and dynamic structure. It is also a site of diverse enzyme activities. The balance between its synthesis and lysis is critical, since wall synthesis in the absence of lysis can cause excessive wall thickening and possible growth arrest; while, lysis in the absence of synthesis would produce bursting of the cell. Therefore, within permissible limits, the net balance between wall synthesis and wall lysis will exert a marked influence on the cell growth and morphology. In this work, the b-D-glucosidase activity was firstly selected as a marker of the wall lytic potential of both Rhodotorula glutinis and Rhodotorula mucilaginosa using p-nitrophenyl-β-D-glucopyranoside as substrate. Secondly, a doses-response study involving several metal ions was conducted; as a result, the FeCl3 and MnCl2 significant increased the biomass-bound β-D-glucosidase activity from R. glutinis and R. mucilaginosa, respectively. Thirdly, to test the influence of each metal ion, 6 mM of either FeCl3 (for R. mucilaginosa) or MnCl2 (for R. glutinis) was supplemented to a medium with lower nitrogen content (MLN). The MLN without any addition was taken as the control. Cultures were incubated at 30°C and 180 rpm during six days. Thus, the major and minor diameter of R. mucilaginosa increased from 3.40 ± 0.23 μm to 5.28 ± 0.40 μm and from 2.60 ± 0.23 μm to 5.20 ± 0.55 μm, respectively, in the presence of 6 mM FeCl3. And, the major and minor diameter of R. glutinis increased from 4,90 ± 0.47 μm to 5.48 ± 0.42 μm and from 2.23 ± 0.53 μm to 4.95 ± 0.49 μm, respectively, in the presence of 6 mM MnCl2. So, from these results it might be concluded that the supplementation of either FeCl3 or MnCl2 to the culture medium induced morphological changes in both oleaginous yeasts. In addition, the biomass and lipid concentration obtained after fermentations were also discussed. Fil: Alfaro, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina Fil: Reyes, Sarita Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina Fil: Martearena, Maria Rita. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina Fil: Blanco, Silvia Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones para la Industria Química. Universidad Nacional de Salta. Facultad de Ingeniería. Instituto de Investigaciones para la Industria Química; Argentina Fil: Baigori, Mario Domingo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina Fil: Pera, Licia Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Planta Piloto de Procesos Industriales Microbiológicos; Argentina XII Congreso Argentino de Microbiología General San Miguel de Tucumán Argentina Asociación Civil de Microbiología General |
description |
The cell wall is a complex and dynamic structure. It is also a site of diverse enzyme activities. The balance between its synthesis and lysis is critical, since wall synthesis in the absence of lysis can cause excessive wall thickening and possible growth arrest; while, lysis in the absence of synthesis would produce bursting of the cell. Therefore, within permissible limits, the net balance between wall synthesis and wall lysis will exert a marked influence on the cell growth and morphology. In this work, the b-D-glucosidase activity was firstly selected as a marker of the wall lytic potential of both Rhodotorula glutinis and Rhodotorula mucilaginosa using p-nitrophenyl-β-D-glucopyranoside as substrate. Secondly, a doses-response study involving several metal ions was conducted; as a result, the FeCl3 and MnCl2 significant increased the biomass-bound β-D-glucosidase activity from R. glutinis and R. mucilaginosa, respectively. Thirdly, to test the influence of each metal ion, 6 mM of either FeCl3 (for R. mucilaginosa) or MnCl2 (for R. glutinis) was supplemented to a medium with lower nitrogen content (MLN). The MLN without any addition was taken as the control. Cultures were incubated at 30°C and 180 rpm during six days. Thus, the major and minor diameter of R. mucilaginosa increased from 3.40 ± 0.23 μm to 5.28 ± 0.40 μm and from 2.60 ± 0.23 μm to 5.20 ± 0.55 μm, respectively, in the presence of 6 mM FeCl3. And, the major and minor diameter of R. glutinis increased from 4,90 ± 0.47 μm to 5.48 ± 0.42 μm and from 2.23 ± 0.53 μm to 4.95 ± 0.49 μm, respectively, in the presence of 6 mM MnCl2. So, from these results it might be concluded that the supplementation of either FeCl3 or MnCl2 to the culture medium induced morphological changes in both oleaginous yeasts. In addition, the biomass and lipid concentration obtained after fermentations were also discussed. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject Congreso Book http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
status_str |
publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/188205 Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa; XII Congreso Argentino de Microbiología General; San Miguel de Tucumán; Argentina; 2017; 1-4 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/188205 |
identifier_str_mv |
Influence of metal ions on β-D-glucosidase and cell morphology of Rhodotorula glutinis and Rhodotorula mucilaginosa; XII Congreso Argentino de Microbiología General; San Miguel de Tucumán; Argentina; 2017; 1-4 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://samige.org.ar/wp-content/uploads/2022/10/Libro-SAMIGE-2017.pdf |
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Asociación Civil de Microbiología General |
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Asociación Civil de Microbiología General |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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