Abstract
We have quantitatively investigated the oxidative inactivation process of Penicillium digitatum spores including intracellular nanostructural changes through neutral oxygen species with a flux-defined atmospheric-pressure oxygen radical source, using fluorescent confocal-laser microscopy and transmission electron microscopy (TEM). The results suggest that neutral oxygen species, particularly ground-state atomic oxygen [O(3Pj)], which is an effective species for inactivating P. digitatum spores, inhibit the function of the cell membrane of spores without causing major superficial morphological changes at a low O(3Pj) dose of ∼2.1 × 1019 cm−2 under an O(3Pj) flux of 2.3 × 1017 cm−2 s−1, following the oxidation of intracellular organelles up to an O(3Pj) dose of ∼1.0 × 1020 cm−2. Finally, intracellular nanostructures are degraded by excess oxygen radicals over an O(3Pj) dose of ∼1.0 × 1020 cm−2.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
