Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action
- Autores
- Iturralde, Micaela; Bracho, Juan Pablo; Valdivia Pérez, Jessica Aye; Guzmán, Fanny; Malbrán, Ismael; Maté, Sabina María; Fanani, Maria Laura; Vairo Cavalli, Sandra Elizabeth
- Año de publicación
- 2025
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Background: The use of antimicrobial peptides (AMPs) as biotechnological tools is an area of growing interest in the research that seeks to improve crop defense. SmAPα1–21 and SmAPγ27–44 were previously reported to inhibit Fusarium graminearum, permeabilize the plasma membrane and induce cytoplasmic disorganization. To exert its activity, SmAPα1–21 initially enters through the basal and apical cells of F. graminearum conidia and then displays a general but non-homogeneous distribution in the cytoplasm of all conidial cells, in contrast. Methods: We analyzed, focusing on membrane interaction, the mode of action of SmAPγ27–44, a peptide based on the γ-core of defensins DefSm2-D and DefSm3, and SmAPα1–21, based on the α-core of DefSm2-D. Additionally, we compared the behavior of SmAPα1–21 with that of SmAP3α1–21 based on DefSm3 but with no activity against F. graminearum. Results: In this study, we showed that SmAPγ27–44 enters the cells with discrete intracellular localization. Furthermore, both peptides disrupted the plasma membrane, but with different modes of action. When large unilamellar liposomes (LUVs) containing phosphatidic acid and ergosterol were used as a filamentous fungal plasma membrane model, SmAPγ27–44 strongly induced aggregation concomitantly with the solubilization of the liposomes and showed the maximal insertion of its tryptophan moiety into the membrane’s hydrophobic interior. In comparison, SmAPα1–21 showed a high effect on the ζ potential of anionic vesicles, vesicle aggregation capacity after reaching a concentration threshold, and moderate transfer of tryptophan to the membrane. SmAP3α1–21, on the other hand, showed poor superficial adsorption to liposomes. Conclusions: In view of our results, a cell penetration peptide-like effect was pictured for the γ-core defensin-derived peptide and a classical AMP action was observed for the α-core defensin-derived one.
Fil: Iturralde, Micaela. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Bracho, Juan Pablo. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina
Fil: Valdivia Pérez, Jessica Aye. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina
Fil: Guzmán, Fanny. Pontificia Universidad Católica de Valparaíso; Chile
Fil: Malbrán, Ismael. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Departamento de Ciencias Biológicas. Centro de Investigaciones de Fitopatología. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones de Fitopatología; Argentina
Fil: Maté, Sabina María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; Argentina
Fil: Fanani, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina
Fil: Vairo Cavalli, Sandra Elizabeth. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina - Materia
-
ANTIFUNGAL PEPTIDES
DEFENSIN-DERIVED PEPTIDES
SILYBUM MARIANUM
FUSARIUM GRAMINEARUM
PEPTIDE–MEMBRANE INTERACTION - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/267057
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Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of ActionIturralde, MicaelaBracho, Juan PabloValdivia Pérez, Jessica AyeGuzmán, FannyMalbrán, IsmaelMaté, Sabina MaríaFanani, Maria LauraVairo Cavalli, Sandra ElizabethANTIFUNGAL PEPTIDESDEFENSIN-DERIVED PEPTIDESSILYBUM MARIANUMFUSARIUM GRAMINEARUMPEPTIDE–MEMBRANE INTERACTIONhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Background: The use of antimicrobial peptides (AMPs) as biotechnological tools is an area of growing interest in the research that seeks to improve crop defense. SmAPα1–21 and SmAPγ27–44 were previously reported to inhibit Fusarium graminearum, permeabilize the plasma membrane and induce cytoplasmic disorganization. To exert its activity, SmAPα1–21 initially enters through the basal and apical cells of F. graminearum conidia and then displays a general but non-homogeneous distribution in the cytoplasm of all conidial cells, in contrast. Methods: We analyzed, focusing on membrane interaction, the mode of action of SmAPγ27–44, a peptide based on the γ-core of defensins DefSm2-D and DefSm3, and SmAPα1–21, based on the α-core of DefSm2-D. Additionally, we compared the behavior of SmAPα1–21 with that of SmAP3α1–21 based on DefSm3 but with no activity against F. graminearum. Results: In this study, we showed that SmAPγ27–44 enters the cells with discrete intracellular localization. Furthermore, both peptides disrupted the plasma membrane, but with different modes of action. When large unilamellar liposomes (LUVs) containing phosphatidic acid and ergosterol were used as a filamentous fungal plasma membrane model, SmAPγ27–44 strongly induced aggregation concomitantly with the solubilization of the liposomes and showed the maximal insertion of its tryptophan moiety into the membrane’s hydrophobic interior. In comparison, SmAPα1–21 showed a high effect on the ζ potential of anionic vesicles, vesicle aggregation capacity after reaching a concentration threshold, and moderate transfer of tryptophan to the membrane. SmAP3α1–21, on the other hand, showed poor superficial adsorption to liposomes. Conclusions: In view of our results, a cell penetration peptide-like effect was pictured for the γ-core defensin-derived peptide and a classical AMP action was observed for the α-core defensin-derived one.Fil: Iturralde, Micaela. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Bracho, Juan Pablo. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; ArgentinaFil: Valdivia Pérez, Jessica Aye. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; ArgentinaFil: Guzmán, Fanny. Pontificia Universidad Católica de Valparaíso; ChileFil: Malbrán, Ismael. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Departamento de Ciencias Biológicas. Centro de Investigaciones de Fitopatología. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones de Fitopatología; ArgentinaFil: Maté, Sabina María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; ArgentinaFil: Fanani, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; ArgentinaFil: Vairo Cavalli, Sandra Elizabeth. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaMultidisciplinary Digital Publishing Institute2025-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/267057Iturralde, Micaela; Bracho, Juan Pablo; Valdivia Pérez, Jessica Aye; Guzmán, Fanny; Malbrán, Ismael; et al.; Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action; Multidisciplinary Digital Publishing Institute; Antibiotics; 14; 5; 4-2025; 430-4512079-6382CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2079-6382/14/5/430info:eu-repo/semantics/altIdentifier/doi/10.3390/antibiotics14050430info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:51:11Zoai:ri.conicet.gov.ar:11336/267057instacron: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:34982025-09-29 09:51:11.864CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
title |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
spellingShingle |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action Iturralde, Micaela ANTIFUNGAL PEPTIDES DEFENSIN-DERIVED PEPTIDES SILYBUM MARIANUM FUSARIUM GRAMINEARUM PEPTIDE–MEMBRANE INTERACTION |
title_short |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
title_full |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
title_fullStr |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
title_full_unstemmed |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
title_sort |
Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action |
dc.creator.none.fl_str_mv |
Iturralde, Micaela Bracho, Juan Pablo Valdivia Pérez, Jessica Aye Guzmán, Fanny Malbrán, Ismael Maté, Sabina María Fanani, Maria Laura Vairo Cavalli, Sandra Elizabeth |
author |
Iturralde, Micaela |
author_facet |
Iturralde, Micaela Bracho, Juan Pablo Valdivia Pérez, Jessica Aye Guzmán, Fanny Malbrán, Ismael Maté, Sabina María Fanani, Maria Laura Vairo Cavalli, Sandra Elizabeth |
author_role |
author |
author2 |
Bracho, Juan Pablo Valdivia Pérez, Jessica Aye Guzmán, Fanny Malbrán, Ismael Maté, Sabina María Fanani, Maria Laura Vairo Cavalli, Sandra Elizabeth |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
ANTIFUNGAL PEPTIDES DEFENSIN-DERIVED PEPTIDES SILYBUM MARIANUM FUSARIUM GRAMINEARUM PEPTIDE–MEMBRANE INTERACTION |
topic |
ANTIFUNGAL PEPTIDES DEFENSIN-DERIVED PEPTIDES SILYBUM MARIANUM FUSARIUM GRAMINEARUM PEPTIDE–MEMBRANE INTERACTION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/4.1 https://purl.org/becyt/ford/4 https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Background: The use of antimicrobial peptides (AMPs) as biotechnological tools is an area of growing interest in the research that seeks to improve crop defense. SmAPα1–21 and SmAPγ27–44 were previously reported to inhibit Fusarium graminearum, permeabilize the plasma membrane and induce cytoplasmic disorganization. To exert its activity, SmAPα1–21 initially enters through the basal and apical cells of F. graminearum conidia and then displays a general but non-homogeneous distribution in the cytoplasm of all conidial cells, in contrast. Methods: We analyzed, focusing on membrane interaction, the mode of action of SmAPγ27–44, a peptide based on the γ-core of defensins DefSm2-D and DefSm3, and SmAPα1–21, based on the α-core of DefSm2-D. Additionally, we compared the behavior of SmAPα1–21 with that of SmAP3α1–21 based on DefSm3 but with no activity against F. graminearum. Results: In this study, we showed that SmAPγ27–44 enters the cells with discrete intracellular localization. Furthermore, both peptides disrupted the plasma membrane, but with different modes of action. When large unilamellar liposomes (LUVs) containing phosphatidic acid and ergosterol were used as a filamentous fungal plasma membrane model, SmAPγ27–44 strongly induced aggregation concomitantly with the solubilization of the liposomes and showed the maximal insertion of its tryptophan moiety into the membrane’s hydrophobic interior. In comparison, SmAPα1–21 showed a high effect on the ζ potential of anionic vesicles, vesicle aggregation capacity after reaching a concentration threshold, and moderate transfer of tryptophan to the membrane. SmAP3α1–21, on the other hand, showed poor superficial adsorption to liposomes. Conclusions: In view of our results, a cell penetration peptide-like effect was pictured for the γ-core defensin-derived peptide and a classical AMP action was observed for the α-core defensin-derived one. Fil: Iturralde, Micaela. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Bracho, Juan Pablo. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina Fil: Valdivia Pérez, Jessica Aye. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina Fil: Guzmán, Fanny. Pontificia Universidad Católica de Valparaíso; Chile Fil: Malbrán, Ismael. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales. Departamento de Ciencias Biológicas. Centro de Investigaciones de Fitopatología. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones de Fitopatología; Argentina Fil: Maté, Sabina María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner". Universidad Nacional de la Plata. Facultad de Ciencias Médicas. Instituto de Investigaciones Bioquímicas de La Plata "Prof. Dr. Rodolfo R. Brenner"; Argentina Fil: Fanani, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Química Biológica de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Centro de Investigaciones en Química Biológica de Córdoba; Argentina Fil: Vairo Cavalli, Sandra Elizabeth. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Ciencias Biológicas. Laboratorio de Investigación de Proteínas Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina |
description |
Background: The use of antimicrobial peptides (AMPs) as biotechnological tools is an area of growing interest in the research that seeks to improve crop defense. SmAPα1–21 and SmAPγ27–44 were previously reported to inhibit Fusarium graminearum, permeabilize the plasma membrane and induce cytoplasmic disorganization. To exert its activity, SmAPα1–21 initially enters through the basal and apical cells of F. graminearum conidia and then displays a general but non-homogeneous distribution in the cytoplasm of all conidial cells, in contrast. Methods: We analyzed, focusing on membrane interaction, the mode of action of SmAPγ27–44, a peptide based on the γ-core of defensins DefSm2-D and DefSm3, and SmAPα1–21, based on the α-core of DefSm2-D. Additionally, we compared the behavior of SmAPα1–21 with that of SmAP3α1–21 based on DefSm3 but with no activity against F. graminearum. Results: In this study, we showed that SmAPγ27–44 enters the cells with discrete intracellular localization. Furthermore, both peptides disrupted the plasma membrane, but with different modes of action. When large unilamellar liposomes (LUVs) containing phosphatidic acid and ergosterol were used as a filamentous fungal plasma membrane model, SmAPγ27–44 strongly induced aggregation concomitantly with the solubilization of the liposomes and showed the maximal insertion of its tryptophan moiety into the membrane’s hydrophobic interior. In comparison, SmAPα1–21 showed a high effect on the ζ potential of anionic vesicles, vesicle aggregation capacity after reaching a concentration threshold, and moderate transfer of tryptophan to the membrane. SmAP3α1–21, on the other hand, showed poor superficial adsorption to liposomes. Conclusions: In view of our results, a cell penetration peptide-like effect was pictured for the γ-core defensin-derived peptide and a classical AMP action was observed for the α-core defensin-derived one. |
publishDate |
2025 |
dc.date.none.fl_str_mv |
2025-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/267057 Iturralde, Micaela; Bracho, Juan Pablo; Valdivia Pérez, Jessica Aye; Guzmán, Fanny; Malbrán, Ismael; et al.; Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action; Multidisciplinary Digital Publishing Institute; Antibiotics; 14; 5; 4-2025; 430-451 2079-6382 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/267057 |
identifier_str_mv |
Iturralde, Micaela; Bracho, Juan Pablo; Valdivia Pérez, Jessica Aye; Guzmán, Fanny; Malbrán, Ismael; et al.; Antifungal Peptides SmAPα1–21 and SmAPγ27–44 Designed from Different Loops of DefSm2-D Have Distinct Modes of Action; Multidisciplinary Digital Publishing Institute; Antibiotics; 14; 5; 4-2025; 430-451 2079-6382 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2079-6382/14/5/430 info:eu-repo/semantics/altIdentifier/doi/10.3390/antibiotics14050430 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
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application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |