ArticleMolecules (Basel, Switzerland)2011
Tomato polyphenol oxidase B is spatially and temporally regulated during development and in response to ethylene.
Article in Molecules (Basel, Switzerland), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 39 citations in OpenAlex.
- Melatonin Activates Phenylpropanoid Metabolism and Antioxidant Defense to Preserve Quality of Fresh-Cut Potatoes During Cold Storage.Foods (Basel, Switzerland) · 2026Article
- Elucidating the differential antiviral action of a plant growth promoting rhizobacterium against three genetically distant virus species.Frontiers in plant science · 2026Article
- Influence of Post-Harvest 1-Methylcyclopropene (1-MCP) Treatment and Refrigeration on Chemical Composition, Phenolic Profile and Antioxidant Modifications during Storage of Abate Fétel Pears.Antioxidants (Basel, Switzerland) · 2023Article
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- Identification of Novel Sources of Resistance to Seed Weevils (Frontiers in plant science · 2018Article
- Polyphenol Oxidases in Crops: Biochemical, Physiological and Genetic Aspects.International journal of molecular sciences · 2017Article
- A PPO Promoter from Betalain-Producing Red Swiss Chard, Directs Petiole- and Root-Preferential Expression of Foreign Gene in Anthocyanins-Producing Plants.International journal of molecular sciences · 2015Article
- Location of chlorogenic acid biosynthesis pathway and polyphenol oxidase genes in a new interspecific anchored linkage map of eggplant.BMC plant biology · 2014Article
- Novel roles for the polyphenol oxidase enzyme in secondary metabolism and the regulation of cell death in walnut.Plant physiology · 2014Article
- Polyphenol oxidase as a biochemical seed defense mechanism.Frontiers in plant science · 2014Article
- Polyphenol oxidases in Physcomitrella: functional PPO1 knockout modulates cytokinin-dependent development in the moss Physcomitrella patens.Journal of experimental botany · 2012Article
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Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant polyphenol oxidases (PPOs) are ubiquitous plastid-localized enzymes. A precise analysis of PPO function in plants has been complicated by the presence of several family members with immunological cross reactivity. Previously we reported the isolation of genomic clones coding for the seven members of the tomato (Solanum lycopersicum) PPO family (A, A', B, C, D, E, and F). Here we report the complex spatial and temporal expression of one of the members, PPO B. The PPO B promoter was sequenced and subjected to homology analysis. Sequence similarities were found to nucleotide sequences of genes encoding enzymes/proteins active in the following systems: phenylpropanoid biosynthesis, signal transduction and responsiveness to hormones and stresses, fruit and seed proteins/enzymes, and photosynthesis. Chimeric gene fusions were constructed linking PPO B 5' flanking regions to the reporter gene, b-glucuronidase (GUS). The resultant transgenic plants were histochemically analyzed for GUS activity in various vegetative and reproductive tissues, and evaluated for PPO B responsiveness to ethylene induction. It was shown that PPO B expression was tissue specific, developmentally regulated, ethylene induced, and localized predominantly to mitotic or apoptotic tissues.
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