Abstract
A study was carried out to elucidate the efficacy of different bacterial strains on controlling detrimental bacteria and on vase life extension of Gladiolus L. hybrids 'Mammoth'. In a preliminary study, three bacterial strains (Bacillus pumilus, Delftia acidovorans, and Herbasperillum sp.) were isolated from the vase solutions of cut Gladiolus, identified and cultured to obtain the bacteria to be used in the study. These isolated strains were compared with two strains of Pseudomonas fluorescens (PF-279 and PF-417). All tested strains produced similar vase life of cut gladiolus stems, which was also similar to that of stems placed in tap water. However, stems placed in solutions with PF-279 Pseudomonas fluorecsens resulted in highest water uptake, while the stems placed in solutions with higher concentrations of Herbasperillum sp. (10 or 20 mL L -1 ) had lowest water uptake. Cut stems require low pH for sustaining water uptake and vase life extension, but use of nutrient broth to culture bacteria increased initial solution pH, which resulted in early senescence of cut stems due to rapid bacterial growth, vascular occlusion due to embolisms and reduced stem hydraulic conductance compared to the stems placed in tap water (control). In summary, tested bacterial strains had no effect on controlling detrimental bacteria present in the vase solutions or vase life extension of cut gladiolus and cannot be used in organic floral preservatives for holding cut stems after harvest.
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Claims 9
Claim · model-written summary
All tested bacterial strains yielded similar vase life to tap-water controls.
GladiolusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All tested strains produced similar vase life of cut gladiolus stems, which was also similar to that of stems placed in tap water.”
Claim · model-written summary
PF-279 Pseudomonas fluorecsens produced the highest cut-stem water uptake.
- Taxon
- stemse0
- Treatment
- solutions with PF-279 Pseudomonas fluorecsense0
- Interactor
- PF-279 Pseudomonas fluorecsense0other
- Outcome
- water uptakee0
- Direction
- higheste0
Not reportedComparator
Verbatim
e0“However, stems placed in solutions with PF-279 Pseudomonas fluorecsens resulted in highest water uptake, while the stems placed in solutions with higher concentrations of Herbasperillum sp. (10 or 20 mL L -1 ) had lowest water uptake.”
Claim · model-written summary
Higher concentrations of Herbasperillum sp. produced the lowest cut-stem water uptake.
- Taxon
- stemse0
- Treatment
- higher concentrations of Herbasperillum sp. (10 or 20 mL L -1 )e0
- Interactor
- Herbasperillum sp.e0other
- Outcome
- water uptakee0
- Direction
- loweste0
Not reportedComparator
Verbatim
e0“However, stems placed in solutions with PF-279 Pseudomonas fluorecsens resulted in highest water uptake, while the stems placed in solutions with higher concentrations of Herbasperillum sp. (10 or 20 mL L -1 ) had lowest water uptake.”
Claim · model-written summary
Nutrient broth increased initial vase-solution pH.
Not reportedComparator
Verbatim
e0“Cut stems require low pH for sustaining water uptake and vase life extension, but use of nutrient broth to culture bacteria increased initial solution pH, which resulted in early senescence of cut stems due to rapid bacterial growth, vascular occlusion due to embolisms and reduced stem hydraulic conductance compared to the stems placed in tap water (control).”
Claim · model-written summary
Nutrient broth led to early cut-stem senescence compared with tap water.
Verbatim
e0“Cut stems require low pH for sustaining water uptake and vase life extension, but use of nutrient broth to culture bacteria increased initial solution pH, which resulted in early senescence of cut stems due to rapid bacterial growth, vascular occlusion due to embolisms and reduced stem hydraulic conductance compared to the stems placed in tap water (control).”
Claim · model-written summary
Nutrient broth reduced cut-stem hydraulic conductance compared with tap water.
Verbatim
e0“Cut stems require low pH for sustaining water uptake and vase life extension, but use of nutrient broth to culture bacteria increased initial solution pH, which resulted in early senescence of cut stems due to rapid bacterial growth, vascular occlusion due to embolisms and reduced stem hydraulic conductance compared to the stems placed in tap water (control).”
Claim · model-written summary
Tested bacterial strains did not control detrimental bacteria in gladiolus vase solutions.
- Treatment
- tested bacterial strainse0
- Outcome
- controlling detrimental bacteria present in the vase solutionse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In summary, tested bacterial strains had no effect on controlling detrimental bacteria present in the vase solutions or vase life extension of cut gladiolus and cannot be used in organic floral preservatives for holding cut stems after harvest.”
Claim · model-written summary
Tested bacterial strains did not extend vase life of cut gladiolus.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In summary, tested bacterial strains had no effect on controlling detrimental bacteria present in the vase solutions or vase life extension of cut gladiolus and cannot be used in organic floral preservatives for holding cut stems after harvest.”
Claim · model-written summary
The tested bacterial strains should not be used in organic floral preservatives for cut gladiolus.
- Outcome
- cannot be used in organic floral preservatives for holding cut stems after harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In summary, tested bacterial strains had no effect on controlling detrimental bacteria present in the vase solutions or vase life extension of cut gladiolus and cannot be used in organic floral preservatives for holding cut stems after harvest.”
The same questions in other papers
inoculation · quality: postharvest · GladiolusPositive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.