ArticlePlant molecular biology2019
Characterization of HemY-type protoporphyrinogen IX oxidase genes from cyanobacteria and their functioning in transgenic Arabidopsis.
Article in Plant molecular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- Design, synthesis and biological evaluation of N-phenylphthalimide derivatives as potential protoporphyrinogen IX oxidase inhibitors.Pest management science · 2026Article
- Safety assessment of membrane-associated protoporphyrinogen IX oxidase fromGM crops & food · 2025Article
- Development of an immunoassay based on a specific antibody for the detection of diphenyl ether herbicide fomesafen.The Science of the total environment · 2024Article
- Article
- Gene Replacement in Arabidopsis Reveals Manganese Transport as an Ancient Feature of Human, Plant and Cyanobacterial UPF0016 Proteins.Frontiers in plant science · 2021Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
key messageWe investigated the functions of two cyanobacterial HemY protoporphyrinogen IX oxidase (PPO) genes with in vitro and in vivo assays and evaluated their applicability as resistance traits to PPO-inhibiting herbicides. We isolated HemY-type protoporphyrinogen IX oxidase (PPO) genes from cyanobacteria, OnPPO gene from Oscillatoria nigro-viridis PCC7112 and HaPPO gene from Halothece sp. PCC7418. The alignment of amino acid sequences as well as phylogenetic analyses conducted showed that OnPPO and HaPPO are classified as HemY-type PPO and are more closely related to plastidic PPOs than to mitochondrial PPOs. The PPO-deficient Escherichia coli BT3 strain, which requires heme supplementation, could obtain normal growth in the absence of heme supplementation when complemented with OnPPO and HaPPO. The enzyme assays of OnPPO, HaPPO, and Arabidopsis thaliana PPO1 (AtPPO1) proteins each revealed different kinetic properties in terms of catalytic efficiency, substrate affinity, and the degree of inhibition by PPO inhibitors. In particular, the catalytic efficiencies (k
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