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Genetic element (GENE)
published: 23 Feb 2015
last updated: 09 Jan 2018
Polyphenol oxidase 5 gene
EN
CS-Ppo5-SOLVR
EN
Protein coding sequence
No
-
BCH-ORGA-SCBD-106423-4 Organism Solanum verrucosum (SOLVR)Crops
EN
Polyphenol oxidase 5
EN
The PPO enzyme family catalyses the o-hydroxylation of monophenol molecules in which the benzene ring contains a single hydroxyl substituent) to o-diphenols (phenol molecules containing two hydroxyl substituents). It can also further catalyse the oxidation of o-diphenols to produce o-quinones.
PPO causes the rapid polymerization of o-quinones to produce black, brown or red pigments (polyphenols) that cause fruit browning
EN
PPO causes the rapid polymerization of o-quinones to produce black, brown or red pigments (polyphenols) that cause fruit browning
Downregulation of the Ppo5 gene results in reduced susceptibility to black spot bruise development.
EN
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