Claim · model-written summary
Authors inferred a major role for LsPPO4 in lettuce stem browning.
- Taxon
- lettuce
Lactuca sativae0 - Gene
- LsPPO4e1
- Outcome
- stem browninge0
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“indicating its major role in lettuce stem browning.”
e1“LsPPO4 demonstrated the highest transcriptional abundance”
Title
Mei Guo; Yueming Tang; Yiwen Yang; et al. Plants 2025. doi:10.3390/plants14060972
Other claims from this paper (12)
- Observation Seventeen LsPPO family members were identified in lettuce.
- Observation LsPPO proteins ranged from 146 to 667 amino acids and showed G/C bias.
- Observation Most PPO family members localized to chloroplasts.
- Observation PPO motif structures were highly conserved.
- Observation PPO family phylogeny revealed four groups.
- Observation Only LsPPO2 had an intron; the other genes lacked introns.
- Intervention effect Stem browning deepened over time after mechanical injury.
- Intervention effect PPO activity increased after mechanical injury.
- Intervention effect Most PPO members were significantly upregulated after fresh-cut processing.
- Intervention effect LsPPO3, LsPPO4 and LsPPO12 showed sustained upregulation.
- Association Expression of LsPPO3, LsPPO4 and LsPPO12 correlated positively with browning and PPO activity.
- Intervention effect LsPPO4 had the highest transcriptional abundance and wound-induced upregulation.