Comprehensive Study of Sexual Reproduction in <i>Nicotiana tabacum</i> Plants Overexpressing H₂O₂-Producing Enzymes: Superoxide Dismutase and Choline Oxidase.

ABSTRACT: Transgenic tobacco plants with additional enzymes producing hydrogen peroxide (H₂O₂)-superoxide dismutase from Arabisopsis thaliana and choline oxidase from Arthrobacter globiformis-have increased resistance to stress factors, which was demonstrated previously, but their reproductive potential has not been studied to date. Superoxide dismutase converts superoxide radical into H₂O₂, and choline oxidase catalyzes the oxidation reaction of choline to form betaine aldehyde, which is subsequently converted into glycine betaine and H₂O₂. We found that the addition of both exogenous genes stimulated growth of the floral organs: petals, styles, and stamens. However, the reproductive potential of the transgenic plants w

SUBMITTER: Podobedova A 

PROVIDER: S-EPMC12299658 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature