Claim · model-written summary
γ-Fe2O3 NPs down-regulated ferric-chelate reductase (FRO2) gene expression in Citrus maxima.
- Taxon
- Citrus maxima
Citrus maximat0 - Treatment
- γ-Fe 2 O 3 NPse6
- Gene
- ferric-chelate reductase (FRO2)e6
- Outcome
- gene expressione6
- Direction
- down-regulatione6
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“with Citrus maxima leaves”
e6“We observed down-regulation of ferric-chelate reductase (FRO2) gene expression exposed to γ-Fe 2 O 3 NPs and Fe 3+ treatments”
Title
Jing Hu; Huiyuan Guo; Junli Li; et al. Journal of Nanobiotechnology 2017. doi:10.1186/s12951-017-0286-1
Other claims from this paper (18)
- Intervention effect γ-Fe2O3 nanoparticles at 20–100 mg/L did not significantly change chlorophyll content or root activity in Citrus maxima.
- Intervention effect Fe3+ at the same exposure range did not significantly change chlorophyll content or root activity in Citrus maxima.
- Intervention effect No oxidative stress occurred in Citrus maxima roots under any Fe treatment.
- Intervention effect In Citrus maxima shoots, 20 and 50 mg/L γ-Fe2O3 NPs did not induce oxidative stress.
- Intervention effect In Citrus maxima shoots, 100 mg/L γ-Fe2O3 NPs induced oxidative stress.
- Association Iron accumulation in Citrus maxima shoots was positively correlated with the dosages of γ-Fe2O3 NPs and Fe3+.
- Observation Accumulated iron in Citrus maxima shoots was not translocated down to roots.
- Intervention effect Fe3+ down-regulated ferric-chelate reductase (FRO2) gene expression in Citrus maxima.
- Intervention effect γ-Fe2O3 NPs exposure down-regulated Nramp3 gene expression in Citrus maxima.
- Intervention effect The 100 mg/L γ-Fe2O3 NPs treatment gave higher wax content in Citrus maxima leaves.
- Intervention effect The 20–100 mg/L Fe3+ treatment gave higher wax content in Citrus maxima.
- Association The WIN1 wax-formation gene was downregulated or unchanged in Citrus maxima compared with the control.
- Association The ABCG12 wax-transport gene was downregulated or unchanged in Citrus maxima compared with the control.
- Intervention effect γ-Fe2O3 NPs foliar spray had an inconsequential effect on Citrus maxima growth.
- Intervention effect Fe3+ foliar spray had an inconsequential effect on Citrus maxima growth.
- Mechanism γ-Fe2O3 NPs can reduce nutrient loss from Citrus maxima leaves, owing to their strong adsorption ability.
- Observation Citrus maxima plants exposed to γ-Fe2O3 NPs and Fe3+ were in iron-replete status.
- Recommendation The authors recommend NPs as a foliar fertilizer for Citrus maxima on the basis of these comparisons.