Characterization of biosurfactant-producing strains of fluorescent pseudomonads in a soilless cultivation system.
Antonie Van Leeuwenhoek
; 94(2): 329-34, 2008 Aug.
Article
em En
| MEDLINE
| ID: mdl-18478353
ABSTRACT
The use of biosurfactants is a promising alternative in biological control of zoospore-producing plant pathogens. In the present study, biosurfactant production by the indigenous population of fluorescent pseudomonads in a soilless plant cultivation system was studied during the growing season. A total of 600 strains was screened and of these 18.5% were observed to produce biosurfactants. Production of both antibiotics and biosurfactant was uncommon among the isolated strains. A selective effect of the cultivation system filter was observed on the biosurfactant-producing strains and these strains were only occasionally observed after the filter, despite having a significantly higher motility than the nonbiosurfactant-producing strains. The majority of biosurfactant-producing strains were isolated from the filter skin, which suggests that this is a suitable surface for inoculation with biocontrol strains.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tensoativos
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Pseudomonas fluorescens
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Solanum lycopersicum
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Hidroponia
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Antibacterianos
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article