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2 November 2023 Hormesis in microorganisms under the action of VUV radiation
G. N. Zvereva, I. Yu. Kirtsideli
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Proceedings Volume 12920, XVI International Conference on Pulsed Lasers and Laser Applications; 129200Y (2023) https://doi.org/10.1117/12.3009469
Event: XVI International Conference on Pulsed Lasers and Laser Applications, 2023, Tomsk, Russian Federation
Abstract
The phenomenon of hormesis in different types of microsfungi, arising by the action of low doses of vacuum ultraviolet (VUV) radiation (λ=173 nm), was studied. An increase in survival probability (SP) have had all microfungi types: Cladosporium herbarum - SP= 215% at W= 0.23 mJ/cm2, Pseudogymnoascus pannorum - SP= 130% at W= 0.13 mJ/cm2 and Rhodotorula colostri - SP= 140% at W=0.005 mW/cm2. The difference in irradiation doses at which the maximum of SP is recorded can be associated with the fact, that Cladosporium herbarum and Pseudogymnoascus pannorum are filamentous fungi, and Rhodotorula colostri has a yeast form. A smaller increase of SP value in Pseudogymnoascus pannorum and a shift in the position of the peaks to lower doses compared to Cladosporium herbarum, may be due to the fact that these types of spores have different pigmentation: carotene and melanin respectively. The observed survival probability increase may be due to growth of microscopic fungi number, that form colonies under the influence of VUV radiation.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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G. N. Zvereva and I. Yu. Kirtsideli "Hormesis in microorganisms under the action of VUV radiation", Proc. SPIE 12920, XVI International Conference on Pulsed Lasers and Laser Applications, 129200Y (2 November 2023); https://doi.org/10.1117/12.3009469
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KEYWORDS
Surface plasmons
Ion irradiation
Organisms
Lamps
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