Claim · model-written summary
Populations of strain A145 were not detectable in any rhizosphere after 42 days.
- Taxon
- cucumber
Cucumis sativuse0 - Organ / stage
- rhizospheree3
- Interactor
- Enterobacter cloacae
Enterobacter cloacaee0biocontrol_agent - Outcome
- Populations of strain A145e3
Not reportedMaterialGeneCompoundSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strains of Enterobacter cloacae show promise as biocontrol agents for Pythium ultimum-induced damping-off on cucumber and other crops.”
e3“Populations of strain A145 were also significantly lower than those of strain 501R3 at all sampling times in cucumber, wheat, and sunflower rhizosphere. Populations of strain A145 were not detectable in any rhizosphere after 42 days”
Title
Scott M. Lohrke; Pierre D. Dery; Wei Li; et al. Molecular Plant-Microbe Interactions 2002. doi:10.1094/mpmi.2002.15.8.817
Other claims from this paper (10)
- Intervention effect The mini-Tn5 Km mutant A145 of E. cloacae was significantly reduced in suppressing cucumber damping-off caused by P. ultimum relative to parent strain 501R3.
- Intervention effect Strain A145 was deficient in seed colonization of cucumber, sunflower and wheat relative to strain 501R3.
- Intervention effect Strain A145 was significantly reduced in seed colonization of corn and cowpea relative to strain 501R3.
- Intervention effect Populations of strain A145 were significantly lower than those of strain 501R3 at all sampling times in cucumber, wheat and sunflower rhizosphere.
- Observation Mini-Tn5 Km inserted into a region of the E. cloacae genome with high DNA and amino acid similarity to rpiA.
- Intervention effect Ribose-5-phosphate isomerase activity in cell lysates of strain A145 was about 3.5% of that of strain 501R3.
- Observation Strain A145 was a ribose auxotroph, as expected for an rpiA mutant.
- Intervention effect Introducing the rpiA homologue fragment into strain A145 restored its ribose phosphate isomerase activity, prototrophy and seedling colonization to levels similar to strain 501R3.
- Intervention effect Introducing the rpiA homologue fragment into strain A145 restored disease suppression to levels similar to strain 501R3.
- Mechanism The rpiA gene has a key role in suppression of damping-off and in colonization of subterranean plant portions by E. cloacae, possibly through the pentose phosphate pathway.