Claim · model-written summary
Below carrying capacity, A-11 and M2 populations in cucumber rhizosphere were two to three orders of magnitude lower than strain 501R3.
Cucumis sativusVerbatim
e0“When Ent. cloacae strains were coapplied to cucumber seeds below carrying capacity, populations of A-11 and M2 were roughly two to three orders of magnitude lower than those of 501R3 in cucumber rhizosphere”
Title
Shengyi Liu; Xiaojia Hu; Scott M. Lohrke; et al. Microbiology 2007. doi:10.1099/mic.0.2006/005538-0
Other claims from this paper (12)
- Observation Reduced carbon in cucumber root exudate was 73.3 % amino acids.
- Observation Reduced carbon in cucumber root exudate was 22.2 % organic acids.
- Observation Reduced carbon in cucumber root exudate was 4.4 % carbohydrate.
- Intervention effect Mutant M2 growth in vitro was severely reduced relative to strain 501R3 on the amino acid and organic acid mixture.
- Intervention effect Mutant M2 growth in vitro was similar to strain 501R3 on the carbohydrate mixture.
- Observation The transposon in Ent. cloacae M2 was inserted in sdhA, which encodes a succinate dehydrogenase subunit.
- Intervention effect Ent. cloacae A-11 (pfkA insertion) growth in vitro was severely reduced relative to strain 501R3 on the carbohydrate mixture.
- Intervention effect Ent. cloacae A-11 growth in vitro was similar to strain 501R3 on the amino acid and organic acid mixture.
- Intervention effect Above carrying capacity, A-11 and M2 populations in cucumber rhizosphere were about one order of magnitude lower than strain 501R3.
- Intervention effect Above carrying capacity, A-11 and M2 populations were similar to each other when coapplied to cucumber seeds.
- Intervention effect Below carrying capacity, A-11 populations were significantly lower than M2 populations.
- Mechanism Carbohydrate catabolism by this bacterium is more important than amino acid and organic acid catabolism at lower population densities.