Claim · model-written summary
Relative growth-rate ratios suggest mutagen effects fluctuate during subculture and cultures may recover.
- Taxon
- Nicotiana tabacum L.
Nicotiana tabacumt0 - Outcome
- fluctuating expression of mutagen effecte0
- Qualifier
- may demonstrate a recovery of the culturese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes investigated in the ratio of relative growth rates between the controls and treated cultures give evidence of a fluctuating expression of mutagen effect in the course of the subculture interval and may demonstrate a recovery of the cultures from the mutagen effect.”
t0“Nicotiana tabacum L.”
Title
Z. Opatený Biologia Plantarum 1973. doi:10.1007/bf02922391
Other claims from this paper (6)
- Intervention effect N-Methyl-N-nitrosourea inhibited tobacco tissue culture growth at 0.1 to 1 mM.
- Intervention effect N-methyl-N-nitrosourethane inhibited tobacco tissue culture growth at 0.1 to 1 mM.
- Association Growth inhibition increased with mutagen concentration.
- Observation Primary pith slices and the three-year culture strain differed in sensitivity to the same mutagen concentrations.
- Intervention effect Prior culture fractionation reduced variability in inoculum sensitivity to mutagens.
- Intervention effect Standardizing inoculum age and size reduced variability in sensitivity to mutagens.