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Descripción
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| Abstract In this study, Pseudomonas savastanoi pv. savastanoi isolates were demonstrated to contain two iaaL paralogs, which are both chromosomally located in most strains. Comparative analysis of iaaL nucleotide sequences amplified from these two paralogs revealed that one paralog, iaaL(Psn), is 100% identical to iaaL from P. savastanoi pv. nerii, while the other paralog, iaaL(Psv), exhibited 93% identity to iaaL from Pseudomonas syringae pv. tomato (iaaL(Pto)). A 3-nucleotide motif (TAC) comprised of 3 to 15 repeats, which remained stable after propagation of the strains in olive plants, was found in iaaL(Psv). Based on the observed nucleotide sequence variations, a restriction fragment length polymorphism assay was developed that allowed differentiation among iaaL(Psn), iaaL(Psv), and iaaL(Pto)(.) In addition, reverse transcriptase PCR on total RNA from P. savastanoi pv. savastanoi strains demonstrated that both iaaL(Psv) and iaaL(Psn) containing 14 or fewer TAC repeats are transcribed. Capillary electrophoresis analysis of PCR-amplified DNA fragments containing the TAC repeats from iaaL(Psv) allowed the differentiation of P. savastanoi pv. savastanoi isolates. | |
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Internacional
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Si |
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JCR del ISI
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Si |
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Título de la revista
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APPLIED AND ENVIRONMENTAL MICROBIOLOGY |
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ISSN
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0099-2240 |
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Factor de impacto JCR
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3,801 |
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Información de impacto
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Volumen
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DOI
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Número de revista
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0 |
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Desde la página
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1030 |
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Hasta la página
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1035 |
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Mes
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ENERO |
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Ranking
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