ArticlePlant physiology2004
Ectopic expression of maize polyamine oxidase and pea copper amine oxidase in the cell wall of tobacco plants.
Article in Plant physiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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Who cites it
37 citing papers in PubMed, 107 citations in OpenAlex.
- Polyamine oxidation enzymes regulate sexual mating/filamentation and pathogenicity in Sporisorium scitamineum.Molecular plant pathology · 2024Article
- The CPlant biotechnology journal · 2023Article
- Interactions of Polyamines and Phytohormones in Plant Response to Abiotic Stress.Plants (Basel, Switzerland) · 2023Review
- Plant Copper Amine Oxidases: Key Players in Hormone Signaling Leading to Stress-Induced Phenotypic Plasticity.International journal of molecular sciences · 2021Review
- Interaction between endogenous HPlant cell reports · 2021Article
- Regulation of stomatal aperture in response to drought stress mediating with polyamines, nitric oxide synthase and hydrogen peroxide inPlant signaling & behavior · 2020Article
- Leaf-Wounding Long-Distance Signaling Targets AtCuAOβ Leading to Root Phenotypic Plasticity.Plants (Basel, Switzerland) · 2020Article
- Roles of DNA Methylation in Cold Priming in Tartary Buckwheat.Frontiers in plant science · 2020Article
- Glycosyltransferase-Like RSE1 Negatively Regulates Leaf Senescence Through Salicylic Acid Signaling inFrontiers in plant science · 2020Article
- Polyamine Oxidases Play Various Roles in Plant Development and Abiotic Stress Tolerance.Plants (Basel, Switzerland) · 2019Review
- The Polyamine Putrescine Contributes to HFrontiers in plant science · 2019Article
- Extra-Cellular But Extra-Ordinarily Important for Cells: Apoplastic Reactive Oxygen Species Metabolism.Frontiers in plant science · 2017Review
- CsPAO4 of Citrus sinensis functions in polyamine terminal catabolism and inhibits plant growth under salt stress.Scientific reports · 2016Article
- Copper-Containing Amine Oxidases and FAD-Dependent Polyamine Oxidases Are Key Players in Plant Tissue Differentiation and Organ Development.Frontiers in plant science · 2016Review
- Two thiadiazole compounds promote rice defence against Xanthomonas oryzae pv. oryzae by suppressing the bacterium's production of extracellular polysaccharides.Molecular plant pathology · 2015Article
- Cell Wall Amine Oxidases: New Players in Root Xylem Differentiation under Stress Conditions.Plants (Basel, Switzerland) · 2015Review
- Polyamine metabolism influences antioxidant defense mechanism in foxtail millet (Setaria italica L.) cultivars with different salinity tolerance.Plant cell reports · 2015Article
- Characterisation of Lipid Changes in Ethylene-Promoted Senescence and Its Retardation by Suppression of Phospholipase Dδ in Arabidopsis Leaves.Frontiers in plant science · 2015Article
- Article
- Recent advances in polyamine metabolism and abiotic stress tolerance.BioMed research international · 2014Review
Corrections and comments
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Authors and funding
10 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To test the feasibility of altering polyamine levels by influencing their catabolic pathway, we obtained transgenic tobacco (Nicotiana tabacum) plants constitutively expressing either maize (Zea mays) polyamine oxidase (MPAO) or pea (Pisum sativum) copper amine oxidase (PCuAO), two extracellular and H(2)O(2)-producing enzymes. Despite the high expression levels of the transgenes in the extracellular space, the amount of free polyamines in the homozygous transgenic plants was similar to that in the wild-type ones, suggesting either a tight regulation of polyamine levels or a different compartmentalization of the two recombinant proteins and the bulk amount of endogenous polyamines. Furthermore, no change in lignification levels and plant morphology was observed in the transgenic plants compared to untransformed plants, while a small but significant change in reactive oxygen species-scavenging capacity was verified. Both the MPAO and the PCuAO tobacco transgenic plants produced high amounts of H(2)O(2) only in the presence of exogenously added enzyme substrates. These observations provided evidence for the limiting amount of freely available polyamines in the extracellular space in tobacco plants under physiological conditions, which was further confirmed for untransformed maize and pea plants. The amount of H(2)O(2) produced by exogenously added polyamines in cell suspensions from the MPAO transgenic plants was sufficient to induce programmed cell death, which was sensitive to catalase treatment and required gene expression and caspase-like activity. The MPAO and PCuAO transgenic plants represent excellent tools to study polyamine secretion and conjugation in the extracellular space, as well as to determine when and how polyamine catabolism actually intervenes both in cell wall development and in response to stress.
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