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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
24/10/2014 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
ALEM, D.; DIAZ, P.; LEONI, C.; DE SIMONE, S.G.; CORREA, A.; OPPEZZO, P.; DALLA RIZZA, M. |
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Afiliación : |
DIEGO MARTIN ALEM GLISON, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; PAOLA ALEXANDRA DIAZ DELLAVALLE, Departamento de Ciencia y Tecnología de los Alimentos, Facultad de Ingeniería y Tecnologías, Universidad Católica del Uruguay (UCU), Montevideo, Uruguay; CAROLINA LEONI VELAZCO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARCO DALLA RIZZA VILARO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
In Search of Topical Agricultural Biofungicides: Properties of the Recombinant Antimicrobial Peptide TrxAq-AMP obtained from Amaranthus quitensis. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Journal of Microbial & Biochemical Technology, 2014, v. 6, no.5, p. 268-273. |
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ISSN : |
1948-5948 |
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DOI : |
10.4172/1948-5948.1000155 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
Synthetic pesticides have a positive impact on food production. However, there are concerns due to the outbreak of resistance along with negative side effects on human health and the environment. New active compounds and control strategies are needed for the management of phytopathogens. Antimicrobial peptides (AMPs) are evolutionarily conserved components of the innate immune response in almost all organisms that constitute an
interesting source of potential molecules for use as pesticides. The naturally derived antimicrobial peptide Aq- AMP (Amaranthus quitensis-Antimicrobial Peptide), obtained from Amaranthus quitensis, is cysteine-rich with activity against several phytopathogens. In the present work, we report on the expression in Escherichia coli of functionally active Aq-AMP fused to thioredoxin (TrxAq-AMP). The in vitro antifungal activity of purified TrxAq-AMP
was confirmed against Alternaria solani, Fusarium oxysporum f. sp. lycopersici, Pencillium digitatum and P. italicum, as well as the in vivo control of P. digitatum in oranges. We demonstrated the stability of TrxAq-AMP in a range of pH (from 3 to 11) and at temperatures from 0°C to 100°C. Furthermore, it maintained activity after digestion with various proteases and it displayed no haemolytic activity suggesting a highly stable and safe molecule. For
topical application we present AMP with no haemolytic/phytotoxic activity that is effective, stable to a wide range of temperature and pH, and resistant to protease activity. Besides, this molecule is naturally stored in the seed, easy to extract and potentially produced through molecular farming. These findings encourage further biotechnological research on topical application of AMPs, especially in relation to molecule bioavailability. MenosABSTRACT.
Synthetic pesticides have a positive impact on food production. However, there are concerns due to the outbreak of resistance along with negative side effects on human health and the environment. New active compounds and control strategies are needed for the management of phytopathogens. Antimicrobial peptides (AMPs) are evolutionarily conserved components of the innate immune response in almost all organisms that constitute an
interesting source of potential molecules for use as pesticides. The naturally derived antimicrobial peptide Aq- AMP (Amaranthus quitensis-Antimicrobial Peptide), obtained from Amaranthus quitensis, is cysteine-rich with activity against several phytopathogens. In the present work, we report on the expression in Escherichia coli of functionally active Aq-AMP fused to thioredoxin (TrxAq-AMP). The in vitro antifungal activity of purified TrxAq-AMP
was confirmed against Alternaria solani, Fusarium oxysporum f. sp. lycopersici, Pencillium digitatum and P. italicum, as well as the in vivo control of P. digitatum in oranges. We demonstrated the stability of TrxAq-AMP in a range of pH (from 3 to 11) and at temperatures from 0°C to 100°C. Furthermore, it maintained activity after digestion with various proteases and it displayed no haemolytic activity suggesting a highly stable and safe molecule. For
topical application we present AMP with no haemolytic/phytotoxic activity that is effective, stable to a wide range of temperature and pH, and resista... Presentar Todo |
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Thesagro : |
ACTIVIDAD ANTIMICROBIANA; ALTERNARIA; BIOTECNOLOGÍA; PÉPTIDOS. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3627/1/Dalla-Rizza-M.-2014.-Jr.Microb.Biochem.-Technol.-v.65.pdf
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Marc : |
LEADER 02624naa a2200265 a 4500
001 1051279
005 2019-10-15
008 2014 bl uuuu u00u1 u #d
022 $a1948-5948
024 7 $a10.4172/1948-5948.1000155$2DOI
100 1 $aALEM, D.
245 $aIn Search of Topical Agricultural Biofungicides$bProperties of the Recombinant Antimicrobial Peptide TrxAq-AMP obtained from Amaranthus quitensis.$h[electronic resource]
260 $c2014
520 $aABSTRACT. Synthetic pesticides have a positive impact on food production. However, there are concerns due to the outbreak of resistance along with negative side effects on human health and the environment. New active compounds and control strategies are needed for the management of phytopathogens. Antimicrobial peptides (AMPs) are evolutionarily conserved components of the innate immune response in almost all organisms that constitute an interesting source of potential molecules for use as pesticides. The naturally derived antimicrobial peptide Aq- AMP (Amaranthus quitensis-Antimicrobial Peptide), obtained from Amaranthus quitensis, is cysteine-rich with activity against several phytopathogens. In the present work, we report on the expression in Escherichia coli of functionally active Aq-AMP fused to thioredoxin (TrxAq-AMP). The in vitro antifungal activity of purified TrxAq-AMP was confirmed against Alternaria solani, Fusarium oxysporum f. sp. lycopersici, Pencillium digitatum and P. italicum, as well as the in vivo control of P. digitatum in oranges. We demonstrated the stability of TrxAq-AMP in a range of pH (from 3 to 11) and at temperatures from 0°C to 100°C. Furthermore, it maintained activity after digestion with various proteases and it displayed no haemolytic activity suggesting a highly stable and safe molecule. For topical application we present AMP with no haemolytic/phytotoxic activity that is effective, stable to a wide range of temperature and pH, and resistant to protease activity. Besides, this molecule is naturally stored in the seed, easy to extract and potentially produced through molecular farming. These findings encourage further biotechnological research on topical application of AMPs, especially in relation to molecule bioavailability.
650 $aACTIVIDAD ANTIMICROBIANA
650 $aALTERNARIA
650 $aBIOTECNOLOGÍA
650 $aPÉPTIDOS
700 1 $aDIAZ, P.
700 1 $aLEONI, C.
700 1 $aDE SIMONE, S.G.
700 1 $aCORREA, A.
700 1 $aOPPEZZO, P.
700 1 $aDALLA RIZZA, M.
773 $tJournal of Microbial & Biochemical Technology, 2014$gv. 6, no.5, p. 268-273.
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Registro original : |
INIA Las Brujas (LB) |
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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
11/12/2020 |
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Actualizado : |
16/12/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
-- - -- |
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Autor : |
GARAYCOCHEA, S.; ROMERO, H.; BEYHAUT, E.; ANDREW, L.; ALTIER, N. |
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Afiliación : |
SILVIA RAQUEL GARAYCOCHEA SOLSONA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; HÉCTOR ROMERO, Laboratorio de Organización y Evolución de Genoma - Unidad de Genómica Evolutiva, Departamento de Ecología y Evolución CURE Maldonado - UDELAR.; ELENA BEYHAUT GUTIERREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; L. ANDREW, Deparment of Sustainable Agricultrual Science. Rothamsted Research, UK.; NORA ADRIANA ALTIER MANZINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Soil structure, nutrient status and water holding capacity shape uruguayan grassland prokaryotic communities. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
FEMS Microbiology Ecology, December 2020, v. 96, no. 12, fiaa207. DOI: https://doi.org/10.1093/femsec/fiaa207 |
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Páginas : |
32 p. |
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DOI : |
10.1093/femsec/fiaa207 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 13 February 2020 // Accepted: 08 October 2020 // Published: 10 October 2020. |
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Contenido : |
Soil microbial communities play critical roles in maintaining natural ecosystems such as the Campos biome grasslands of southern South America. These grasslands are characterized by a high diversity of soils, low available phosphorus (P) and limited water holding capacity. This work aimed to describe prokaryotic communities associated with different soil types and to examine the relationship among these soil communities, the parent material and the soil nutrient status. Five Uruguayan soils with different parent material and nutrient status, under natural grasslands, were compared. The structure and diversity of prokaryotic communities were characterized by sequencing 16S rRNA gene amplicons. Proteobacteria, Actinobacteria, Firmicutes,Verrucomicrobia, Acidobacteria, Planctomycetes and Chloroflexi were the predominant phyla. Ordination based on several distance measures was able to discriminate clearly between communities associated with different soil types. Edge-PCA phylogeny-sensitive ordination and differential relative abundance analyses identified Archaea and the bacterial phyla Firmicutes, Acidobacteria, Actinobacteria and Verrucomicrobia as those with significant differences among soil types. Canonical analysis of principal coordinates identified porosity, clay content, available P, soil organic carbon and water holding capacity as the main variables contributing to determine the characteristic prokaryotic communities of each soil type. |
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Palabras claves : |
CAMPOS BIOME; NATURAL GRASSLANDS; PROKARYOTIC COMMUNITIES; SOIL; SOIL NUTRIENTS; SOIL PHYSICOCHEMICAL VARIABLES; SOIL STRUCTURE. |
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Asunto categoría : |
P30 Ciencia del suelo y manejo del suelo |
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Marc : |
LEADER 02463naa a2200289 a 4500
001 1061580
005 2020-12-16
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1093/femsec/fiaa207$2DOI
100 1 $aGARAYCOCHEA, S.
245 $aSoil structure, nutrient status and water holding capacity shape uruguayan grassland prokaryotic communities.$h[electronic resource]
260 $c2020
300 $a32 p.
500 $aArticle history: Received: 13 February 2020 // Accepted: 08 October 2020 // Published: 10 October 2020.
520 $aSoil microbial communities play critical roles in maintaining natural ecosystems such as the Campos biome grasslands of southern South America. These grasslands are characterized by a high diversity of soils, low available phosphorus (P) and limited water holding capacity. This work aimed to describe prokaryotic communities associated with different soil types and to examine the relationship among these soil communities, the parent material and the soil nutrient status. Five Uruguayan soils with different parent material and nutrient status, under natural grasslands, were compared. The structure and diversity of prokaryotic communities were characterized by sequencing 16S rRNA gene amplicons. Proteobacteria, Actinobacteria, Firmicutes,Verrucomicrobia, Acidobacteria, Planctomycetes and Chloroflexi were the predominant phyla. Ordination based on several distance measures was able to discriminate clearly between communities associated with different soil types. Edge-PCA phylogeny-sensitive ordination and differential relative abundance analyses identified Archaea and the bacterial phyla Firmicutes, Acidobacteria, Actinobacteria and Verrucomicrobia as those with significant differences among soil types. Canonical analysis of principal coordinates identified porosity, clay content, available P, soil organic carbon and water holding capacity as the main variables contributing to determine the characteristic prokaryotic communities of each soil type.
653 $aCAMPOS BIOME
653 $aNATURAL GRASSLANDS
653 $aPROKARYOTIC COMMUNITIES
653 $aSOIL
653 $aSOIL NUTRIENTS
653 $aSOIL PHYSICOCHEMICAL VARIABLES
653 $aSOIL STRUCTURE
700 1 $aROMERO, H.
700 1 $aBEYHAUT, E.
700 1 $aANDREW, L.
700 1 $aALTIER, N.
773 $tFEMS Microbiology Ecology, December 2020$gv. 96, no. 12, fiaa207. DOI: https://doi.org/10.1093/femsec/fiaa207
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