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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
06/06/2019 |
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Actualizado : |
06/06/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
SESSA, L.; ABREO, E.; BETTUCCI, L.; LUPO, S. |
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Afiliación : |
LUCÍA SESSA JUSID, INIA (Universidad de la República (UdelaR)/ Facultad de Ciencias; Instituto Nacional de Investigación Agropecuaria), Uruguay.; EDUARDO RAUL ABREO GIMENEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LINA BETTUCCI, Universidad de la República (UdelaR)/ Facultad de Ciencias; SANDRA LUPO, Universidad de la República (UdelaR)/ Facultad de Ciencias. |
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Título : |
Diversity and virulence of Diaporthe species associated with wood disease symptoms in deciduous fruit trees in Uruguay. |
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Fecha de publicación : |
2017 |
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Fuente / Imprenta : |
Phytopathologia Mediterranea, 2017, vol. 56, Issue 3, pp. 431-444. |
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ISSN : |
0031-9465 // E- ISSN: 1593-2095 |
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DOI : |
10.14601/Phytopathol_Mediterr-20678 |
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Idioma : |
Inglés |
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Notas : |
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC-BY-4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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Contenido : |
SUMMARY.
Several Diaporthe species are recognized as causal agents of many plant disease symptoms, including twig and branch cankers, dieback, shoot blight, and root and fruit rots. In Uruguay, the proximity between apple, pear and peach orchards offers the possibility to study the presence of different Diaporthe spp. associated with
wood cankers across different deciduous fruit trees. Symptomatic twigs and branches of these orchard species were sampled, and isolates of Diaporthe were obtained. Selected isolates were used for cross inoculations in the three hosts. Seven Diaporthe spp. were identified, based on the internal transcribed spacer (ITS) region of rDNA and the translation elongation factor 1-alpha gene (EF1-α) phylogenies. The species were: Diaporthe amygdali, D. foeniculina, D. infecunda, D. eres, D. terebinthifolii, D. oxe and D. phaseolorum, while two isolates Diaporthe sp. 1 and Diaporthe sp. 4 could not be assigned to any species. Diaporthe infecunda, D. eres, D. terebinthifolii, D. phaseolorum and D. oxe on Pyrus communis and D. foeniculina on Malus domestica represent new records in these hosts in Uruguay, while D. oxe isolated from Prunus persica is a new record for this species. Diaporthe eres and D. phaseolorum were the most virulent species, posing the greatest risk due to their wide distribution and virulence in apple and peach trees. Although pear trees showed less symptomatic tissues and were less susceptible than peach and apple trees in the pathogenicity tests, they harboured seven of the species, and therefore should be considered as reservoirs of Diaporthe in Uruguayan orchards. Trees of the three hosts could be considered potential reciprocal sources of pathogenic Diaporthe spp.
© 2017 Author(s). MenosSUMMARY.
Several Diaporthe species are recognized as causal agents of many plant disease symptoms, including twig and branch cankers, dieback, shoot blight, and root and fruit rots. In Uruguay, the proximity between apple, pear and peach orchards offers the possibility to study the presence of different Diaporthe spp. associated with
wood cankers across different deciduous fruit trees. Symptomatic twigs and branches of these orchard species were sampled, and isolates of Diaporthe were obtained. Selected isolates were used for cross inoculations in the three hosts. Seven Diaporthe spp. were identified, based on the internal transcribed spacer (ITS) region of rDNA and the translation elongation factor 1-alpha gene (EF1-α) phylogenies. The species were: Diaporthe amygdali, D. foeniculina, D. infecunda, D. eres, D. terebinthifolii, D. oxe and D. phaseolorum, while two isolates Diaporthe sp. 1 and Diaporthe sp. 4 could not be assigned to any species. Diaporthe infecunda, D. eres, D. terebinthifolii, D. phaseolorum and D. oxe on Pyrus communis and D. foeniculina on Malus domestica represent new records in these hosts in Uruguay, while D. oxe isolated from Prunus persica is a new record for this species. Diaporthe eres and D. phaseolorum were the most virulent species, posing the greatest risk due to their wide distribution and virulence in apple and peach trees. Although pear trees showed less symptomatic tissues and were less susceptible than peach and apple trees in the pa... Presentar Todo |
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Palabras claves : |
DIAPORTHE ERES; DIAPORTHE OXE; MALUS DOMESTICA. |
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Thesagro : |
DIAPORTHE; PRUNUS PERSICA; PYRUS COMMUNIS. |
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Asunto categoría : |
F01 Cultivo |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12789/1/20678-47476-3-PB.pdf
http://www.fupress.net/index.php/pm/article/view/20678/20627
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Marc : |
LEADER 02819naa a2200265 a 4500
001 1059827
005 2019-06-06
008 2017 bl uuuu u00u1 u #d
022 $a0031-9465 // E- ISSN: 1593-2095
024 7 $a10.14601/Phytopathol_Mediterr-20678$2DOI
100 1 $aSESSA, L.
245 $aDiversity and virulence of Diaporthe species associated with wood disease symptoms in deciduous fruit trees in Uruguay.$h[electronic resource]
260 $c2017
500 $aThis is an open access article distributed under the terms of the Creative Commons Attribution License (CC-BY-4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
520 $aSUMMARY. Several Diaporthe species are recognized as causal agents of many plant disease symptoms, including twig and branch cankers, dieback, shoot blight, and root and fruit rots. In Uruguay, the proximity between apple, pear and peach orchards offers the possibility to study the presence of different Diaporthe spp. associated with wood cankers across different deciduous fruit trees. Symptomatic twigs and branches of these orchard species were sampled, and isolates of Diaporthe were obtained. Selected isolates were used for cross inoculations in the three hosts. Seven Diaporthe spp. were identified, based on the internal transcribed spacer (ITS) region of rDNA and the translation elongation factor 1-alpha gene (EF1-α) phylogenies. The species were: Diaporthe amygdali, D. foeniculina, D. infecunda, D. eres, D. terebinthifolii, D. oxe and D. phaseolorum, while two isolates Diaporthe sp. 1 and Diaporthe sp. 4 could not be assigned to any species. Diaporthe infecunda, D. eres, D. terebinthifolii, D. phaseolorum and D. oxe on Pyrus communis and D. foeniculina on Malus domestica represent new records in these hosts in Uruguay, while D. oxe isolated from Prunus persica is a new record for this species. Diaporthe eres and D. phaseolorum were the most virulent species, posing the greatest risk due to their wide distribution and virulence in apple and peach trees. Although pear trees showed less symptomatic tissues and were less susceptible than peach and apple trees in the pathogenicity tests, they harboured seven of the species, and therefore should be considered as reservoirs of Diaporthe in Uruguayan orchards. Trees of the three hosts could be considered potential reciprocal sources of pathogenic Diaporthe spp. © 2017 Author(s).
650 $aDIAPORTHE
650 $aPRUNUS PERSICA
650 $aPYRUS COMMUNIS
653 $aDIAPORTHE ERES
653 $aDIAPORTHE OXE
653 $aMALUS DOMESTICA
700 1 $aABREO, E.
700 1 $aBETTUCCI, L.
700 1 $aLUPO, S.
773 $tPhytopathologia Mediterranea, 2017, vol. 56, Issue 3, pp. 431-444.
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Registro original : |
INIA Las Brujas (LB) |
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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
11/09/2014 |
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Actualizado : |
24/06/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
A - 1 |
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Autor : |
SOUZA, A.L.A.; DÍAZ DELLAVALLE, P.; CABRERA, A.; LARRAÑAGA, P.; DALLA RIZZA, M.; DE-SIMONE, S.G. |
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Afiliación : |
PAOLA ALEXANDRA DIAZ DELLAVALLE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ANDREA CECILIA CABRERA BARRIOS, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; MARCO DALLA RIZZA VILARO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Antimicrobial activity of pleurocidin is retained in Plc-2, a C-terminal 12-amino acid fragment. |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Peptides, 2013, v.45, p.78-84. |
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ISSN : |
0196-9781 |
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DOI : |
10.1016/j.peptides.2013.03.030 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
An analysis of a series of five peptides composed of various portions of the pleurocidin (Plc) sequence identified a l2-amino acid fragment from the C-terminus of Plc, designated Plc-2, as the smallest fragment that retained a antimicrobial activity comparable to that of the parent compound. MIC tests in vitro with low-ionic-strength medium showed that Plc-2 has potent activity against Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus but not against Enterococcus faecalis. The antifungal activity of the synthetic peptides against phytopathogenic fungi, such as Fusarium oxysporum, Colletotrichum sp., Aspergillus niger and Alternaria sp., also identified Plc-2 as a biologically active peptide. Microscopy studies of fluorescently stained fungi treated with Plc-2 demonstrated that cytoplasmic and nuclear membranes were compromised in all strains of phytopathogenic fungi tested. Together, these results identify Plc-2 as a potential antimicrobial agent with similar properties to its parent compound, pleurocidin. In addition, it demonstrated that the KHVGKAALTHYL residues are critical for the antimicrobial activity described for pleurocidin.
© 2013 Elsevier Inc. All rights reserved. |
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Thesagro : |
ALTERNARIA; HONGOS; PÉPTIDOS. |
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Asunto categoría : |
H01 Protección de plantas - Aspectos generales |
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Marc : |
LEADER 01911naa a2200241 a 4500
001 1050151
005 2021-06-24
008 2013 bl uuuu u00u1 u #d
022 $a0196-9781
024 7 $a10.1016/j.peptides.2013.03.030$2DOI
100 1 $aSOUZA, A.L.A.
245 $aAntimicrobial activity of pleurocidin is retained in Plc-2, a C-terminal 12-amino acid fragment.$h[electronic resource]
260 $c2013
520 $aABSTRACT. An analysis of a series of five peptides composed of various portions of the pleurocidin (Plc) sequence identified a l2-amino acid fragment from the C-terminus of Plc, designated Plc-2, as the smallest fragment that retained a antimicrobial activity comparable to that of the parent compound. MIC tests in vitro with low-ionic-strength medium showed that Plc-2 has potent activity against Pseudomonas aeruginosa, Escherichia coli and Staphylococcus aureus but not against Enterococcus faecalis. The antifungal activity of the synthetic peptides against phytopathogenic fungi, such as Fusarium oxysporum, Colletotrichum sp., Aspergillus niger and Alternaria sp., also identified Plc-2 as a biologically active peptide. Microscopy studies of fluorescently stained fungi treated with Plc-2 demonstrated that cytoplasmic and nuclear membranes were compromised in all strains of phytopathogenic fungi tested. Together, these results identify Plc-2 as a potential antimicrobial agent with similar properties to its parent compound, pleurocidin. In addition, it demonstrated that the KHVGKAALTHYL residues are critical for the antimicrobial activity described for pleurocidin. © 2013 Elsevier Inc. All rights reserved.
650 $aALTERNARIA
650 $aHONGOS
650 $aPÉPTIDOS
700 1 $aDÍAZ DELLAVALLE, P.
700 1 $aCABRERA, A.
700 1 $aLARRAÑAGA, P.
700 1 $aDALLA RIZZA, M.
700 1 $aDE-SIMONE, S.G.
773 $tPeptides, 2013$gv.45, p.78-84.
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