Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ LAReferencia - Red F...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
CONICET Digital
Article . 2018
License: CC BY NC SA
Data sources: CONICET Digital
versions View all 2 versions
addClaim

Péptidos antimicrobianos de plantas

Authors: Cardillo, Alejandra Beatriz; Martínez Ceron, María Camila; Romero, Stella Maris; Cascone, Osvaldo; Camperi, Silvia Andrea; Giudicessi, Silvana Laura;

Péptidos antimicrobianos de plantas

Abstract

Los péptidos antimicrobianos (AMPs por sus siglas en inglés) son pequeñas moléculas con menos de 50 aminoácidos, principalmente con carga positiva e importantes propiedades antibacterianas y antifúngicas. Se cree que el principal mecanismo de acción contra los diferentes patógenos es la ruptura de membranas, que puede darse mediante tres modos de acción (modelo de duela de barril, modelo de agujero de gusano (o poro toroide) y modelo de alfombra). Particularmente en las plantas, la mayoría de los AMPs son ricos en cisteínas, lo que permite la formación de numerosos puentes disulfuro (entre dos y seis). Esta característica les da el nombre de CRPs (cysteine-rich peptides) o péptidos ricos en cisteínas. Los puentes disulfuro les confieren a los AMPs una alta estabilidad química, térmica y proteolítica. En este trabajo se describen las características de siete familias: defensinas, tioninas, heveínas, knotinas, α-harpininas, Proteínas de Transferencia de Lípidos (LTPs) y snakinas. Cada familia presenta propiedades distintivas, si bien existen semejanzas entre ellas, como sus propiedades antimicrobianas y fragmentos de secuencias de aminoácidos comunes. Considerando que dichos péptidos han participado por milenios en la defensa de las plantas por su eficiencia y estabilidad, ésto los convierte en ventajosos frente a los fármacos actuales más susceptibles a generar resistencia. Se cree que su estudio y explotación podrá servir en el futuro en aplicaciones en la industria agrícola, farmacéutica y biotecnológica, lo que mejoraría la calidad de vida.

Antimicrobial peptides (AMPs) are mainly positive charged small molecules of less than 50 amino acids, with antibacterial and antifungal properties. The main mechanism of action against pathogens is the cell membrane disruption, which can occur through three modes of action: barrel-stave model, the worm hole (or toroid pore) model, and carpet model. Particularly in plants, most of the AMPs are cysteine-rich peptides (CRPs), which allow the formation of numerous disulfide bridges (between two and six). The disulfide bridges give the AMPs a high chemical, thermal and proteolytic stability. In this work, the characteristics of seven families are described: defensins, thionins, heveins, knottins, α-harpinines, Lipid Transfer Proteins (LTPs) and snakines. Each family has distinctive properties, although there are similarities between them, such as their antimicrobial properties and common amino acid sequences. Considering that these peptides have participated for millennia in the defense of plants due to their efficiency and stability, this makes them advantageous compared to the current drugs that are more susceptible to generate resistance. Theirs study and exploitation could be useful for future applications in the agricultural, pharmaceutical and biotechnology industry, which will improve the life quality.

Fil: Romero, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Micología y Botánica. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Micología y Botánica; Argentina

Fil: Martínez Ceron, María Camila. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Nanobiotecnología. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología; Argentina

Fil: Cardillo, Alejandra Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Nanobiotecnología. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología; Argentina

Fil: Giudicessi, Silvana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Nanobiotecnología. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología; Argentina

Fil: Camperi, Silvia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Nanobiotecnología. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología; Argentina

Fil: Cascone, Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Nanobiotecnología. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Nanobiotecnología; Argentina

Country
Argentina
Keywords

Ciclótidos, Peptoides, https://purl.org/becyt/ford/2.9, Antibacterianos, https://purl.org/becyt/ford/2, Antifúngicos

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green