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Автор(ы) : Mogilnaya O. A., Ronzhin N. O., Artemenko K. S., Bondar V. S.
Заглавие : Morphological properties and levels of extracellular peroxidase activity and light emission of the basidiomycete Armillaria borealis treated with beta-glucosidase and chitinase
Колич.характеристики :12 с
Коллективы : Russian Academy of Sciences [0356-2016-0709, 0356-2015-0103]
Место публикации : Mycosphere: MYCOSPHERE PRESS, 2017. - Vol. 8, Is. 4. - С. 649-+. - ISSN 2077-7000, DOI 10.5943/mycosphere/8/4/11
Примечания : Cited References:39. - This work was supported by the state budget allocated to the fundamental research at the Russian Academy of Sciences (project no. 0356-2016-0709) and Program No. II. 2 "Integration and Development" of the Siberian Branch of the Russian Academy of Sciences (project no. 0356-2015-0103).
Предметные рубрики: FUNGAL CELL-WALL
OXIDATIVE STRESS
PHANEROCHAETE-CHRYSOSPORIUM
Ключевые слова (''Своб.индексиров.''): basidiomycetes--bioluminescence--cell wall--beta-glucosidase--chitinase--peroxidase
Аннотация: The study estimates morphological properties and levels of extracellular peroxidase activity and light emission of mycelium of the basidiomycete Armillaria borealis IBSO 2328 treated with beta-glucosidase and chitinase. Mycelium incubated with the enzymes shows considerable morphological changes and indications of osmotic shock. Injuries observed in the cell envelope of the fungal hyphae are primarily attributed to the partial (in the beta-glucosidase treatment) or complete (in the chitinase treatment) disintegration of the melanin layer on the surface of the cell wall. Changes in the cell wall of hyphae are accompanied by release of extracellular peroxidases of the fungus into the incubation medium and an increase in light emission relative to the luminescence of the control pellets. We assume that higher level of luminescence of the enzyme-treated mycelium samples could be related to the disintegration of the surface pigment layer of the hyphae and the partial loss of extracellular peroxidases. The data obtained confirm the previously proposed hypothesis in which light producing reaction of the fungus may be an additional way to neutralize active oxygen radicals under stress.
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