Characterization of biosurfactant-producing strains of fluorescent pseudomonads in a soilless cultivation system

Sammanfattning

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

Nyckelord

biological control; biosurfactants; fluorescent pseudomonads; greenhouse; motility

Publicerad i

Antonie van Leeuwenhoek
2008, volym: 94, nummer: 2, sidor: 329-334
Utgivare: SPRINGER

SLU författare

• Hultberg, Malin

  • Hortikultur, Sveriges lantbruksuniversitet
    

• Bergstrand, Karl-Johan

  • Hortikultur, Sveriges lantbruksuniversitet
    

• Khalil, Samar

  • Hortikultur, Sveriges lantbruksuniversitet
    

• Alsanius, Beatrix

  • Hortikultur, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Trädgårdsvetenskap/hortikultur
Fisk- och akvakulturforskning
Miljö- och naturvårdsvetenskap

Publikationens identifierare

• DOI: https://doi.org/10.1007/s10482-008-9250-2

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/18902