Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse

Pseudomonas species causing pith necrosis symptoms on tomato and pepper collected in different areas of Argentina were identified as Pseudomonas corrugata, P. viridiflava and Pseudomonas spp. Their diversity was analysed and compared with reference strains on the basis of their phenotypic characteri...

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Autores principales: Alippi, Adriana Mónica, Dal Bó, Elena, Ronco, Blanca Lía, López, María Virginia, López, Ana Claudia, Aguilar, Orlando Mario
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Ciencias Agrarias
Copper resistance
Pathogenicity
Pepper
Pseudomonas corrugata
Pseudomonas viridiflava
Tomato pith necrosis
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83291
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-83291
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
Copper resistance
Pathogenicity
Pepper
Pseudomonas corrugata
Pseudomonas viridiflava
Tomato pith necrosis
spellingShingle Ciencias Agrarias
Copper resistance
Pathogenicity
Pepper
Pseudomonas corrugata
Pseudomonas viridiflava
Tomato pith necrosis
Alippi, Adriana Mónica
Dal Bó, Elena
Ronco, Blanca Lía
López, María Virginia
López, Ana Claudia
Aguilar, Orlando Mario
Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse
topic_facet Ciencias Agrarias
Copper resistance
Pathogenicity
Pepper
Pseudomonas corrugata
Pseudomonas viridiflava
Tomato pith necrosis
description Pseudomonas species causing pith necrosis symptoms on tomato and pepper collected in different areas of Argentina were identified as Pseudomonas corrugata, P. viridiflava and Pseudomonas spp. Their diversity was analysed and compared with reference strains on the basis of their phenotypic characteristics, copper and antibiotic sensitivity tests, serology, pathogenicity, DNA fingerprinting and restriction fragment length polymorphism (RFLP) analysis of a 16S rRNA gene fragment. All P. corrugata strains tested were copper-resistant while P. viridiflava strains were more variable. Numerical analysis of phenotypic data showed that all P. corrugata strains formed a single phenon that clustered at a level of about 93%, while all the P. viridiflava strains clustered in a separated phenon at a level of 94%. Genomic analysis by repetitive (rep)-PCR and 16S rRNA-RFLP fingerprinting and serological analysis showed that the two species contained considerable genetic diversity. Inoculations of tomato and pepper plants with strains from both hosts caused similar pith necrosis symptoms. Strains of both P. corrugata and P. viridiflava were grouped according to their geographical origin and not according to the original host. This is the first report of Pseudomonas viridiflava causing pith necrosis on pepper.
format Articulo
Articulo
author Alippi, Adriana Mónica
Dal Bó, Elena
Ronco, Blanca Lía
López, María Virginia
López, Ana Claudia
Aguilar, Orlando Mario
author_facet Alippi, Adriana Mónica
Dal Bó, Elena
Ronco, Blanca Lía
López, María Virginia
López, Ana Claudia
Aguilar, Orlando Mario
author_sort Alippi, Adriana Mónica
title Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse
title_short Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse
title_full Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse
title_fullStr Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse
title_full_unstemmed Pseudomonas populations causing pith necrosis of tomato and pepper in Argentina are highly diverse
title_sort pseudomonas populations causing pith necrosis of tomato and pepper in argentina are highly diverse
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/83291
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