Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding

Snakin-1 (StSN1) is a broad-spectrum antimicrobial peptide isolated from Solanum tuberosum. Homologous proteins have been identified in a wide range of species but there is no apparent consensus in the roles they play. A 1394 bp fragment of the 5’upstream region of StSN1 gene, designated P...

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Autores principales: Almasia,Natalia I, Narhirñak,Vanesa, Hopp,H. Esteban, Vazquez-Rovere,Cecilia
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso 2010
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500008
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spelling oai:scielo:S0717-345820100005000082011-05-24Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and woundingAlmasia,Natalia INarhirñak,VanesaHopp,H. EstebanVazquez-Rovere,Cecilia antimicrobial peptide inducible promoter potato snakin/GASA Snakin-1 (StSN1) is a broad-spectrum antimicrobial peptide isolated from Solanum tuberosum. Homologous proteins have been identified in a wide range of species but there is no apparent consensus in the roles they play. A 1394 bp fragment of the 5’upstream region of StSN1 gene, designated PStSN1, was isolated from the potato genome and sequenced. Bioinformatics analyses revealed a total of 55 potential regulatory motifs related to tissue-specificity, stress, defence and hormone responsiveness, among others. PStSN1 spatial and temporal activity was studied in transgenic Arabidopsis plants expressing a reporter gene under this promoter control (PStSN1::GUS). Histochemical staining revealed PStSN1::GUS expression in the root vasculature, cotyledons, young leaves and floral organs. Moreover, GUS staining was detected in young developmental stages gradually decreasing as the plant aged. Stress treatments on transgenic plants showed that PStSN1 activity was induced by high/low temperature and wounding. The characterization of PStSN1 in a model plant establishes a framework for the understanding of its possible biological functions and provides a potential tool for plant modification through genetic engineering.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.13 n.5 20102010-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500008en
institution Scielo Chile
collection Scielo Chile
language English
topic antimicrobial peptide
inducible promoter
potato
snakin/GASA
spellingShingle antimicrobial peptide
inducible promoter
potato
snakin/GASA
Almasia,Natalia I
Narhirñak,Vanesa
Hopp,H. Esteban
Vazquez-Rovere,Cecilia
Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
description Snakin-1 (StSN1) is a broad-spectrum antimicrobial peptide isolated from Solanum tuberosum. Homologous proteins have been identified in a wide range of species but there is no apparent consensus in the roles they play. A 1394 bp fragment of the 5’upstream region of StSN1 gene, designated PStSN1, was isolated from the potato genome and sequenced. Bioinformatics analyses revealed a total of 55 potential regulatory motifs related to tissue-specificity, stress, defence and hormone responsiveness, among others. PStSN1 spatial and temporal activity was studied in transgenic Arabidopsis plants expressing a reporter gene under this promoter control (PStSN1::GUS). Histochemical staining revealed PStSN1::GUS expression in the root vasculature, cotyledons, young leaves and floral organs. Moreover, GUS staining was detected in young developmental stages gradually decreasing as the plant aged. Stress treatments on transgenic plants showed that PStSN1 activity was induced by high/low temperature and wounding. The characterization of PStSN1 in a model plant establishes a framework for the understanding of its possible biological functions and provides a potential tool for plant modification through genetic engineering.
author Almasia,Natalia I
Narhirñak,Vanesa
Hopp,H. Esteban
Vazquez-Rovere,Cecilia
author_facet Almasia,Natalia I
Narhirñak,Vanesa
Hopp,H. Esteban
Vazquez-Rovere,Cecilia
author_sort Almasia,Natalia I
title Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
title_short Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
title_full Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
title_fullStr Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
title_full_unstemmed Isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
title_sort isolation and characterization of the tissue and development-specific potato snakin-1 promoter inducible by temperature and wounding
publisher Pontificia Universidad Católica de Valparaíso
publishDate 2010
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000500008
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