Antioxidant defence system during exponential and stationary growth phases of Phycomyces blakesleeanus: Response to oxidative stress by hydrogen peroxide

Castro, Cristina De; Valle, Pilar del; Rúa, Javier; García-Armesto, María Rosario; Gutiérrez-Larraínzar, Marta; Busto, Félix; Arriaga, Dolores de

doi:10.1016/j.funbio.2013.03.001

Cited by 14 publications

(13 citation statements)

References 41 publications

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“…In the present study, GPx gene expression levels were significantly decreased in cells treated with NAC, but significantly increased after exposure to H 2 O 2 . These results were consistent with those reported in Phycomyces blakesleeanus (de Castro et al, 2013). These results showed that GPx regulates ROS under varying conditions, and ROS could also in turn regulate GPx transcript levels.…”

Section: Cross-talk Between the Cellular Redox State And Gpx Functionsupporting

confidence: 93%

“…In the current studies of filamentous fungi, GPx is treated as one of the components and oxidation-reduction enzymes detected in the ROS signaling pathway, particularly when intracellular redox conditions change in response stress (de Castro et al, 2013). In the present study, we investigated the capacity of GPx-silenced strains in tolerating oxidative stress, and the results were similar to those reported in other species (Castro et al, 2008).…”

Section: Discussionsupporting

confidence: 71%

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Functional analysis of the role of glutathione peroxidase (GPx) in the ROS signaling pathway, hyphal branching and the regulation of ganoderic acid biosynthesis in Ganoderma lucidum

Shi

Chen

et al. 2015

Fungal Genetics and Biology

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Section: Cross-talk Between the Cellular Redox State And Gpx Functionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 71%

Functional analysis of the role of glutathione peroxidase (GPx) in the ROS signaling pathway, hyphal branching and the regulation of ganoderic acid biosynthesis in Ganoderma lucidum

Shi

Chen

et al. 2015

Fungal Genetics and Biology

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“…To combat the damaging effects of ROS, basidiomycetes have a multicomponent antioxidant system, which includes, among other components, various peroxidases (Gessler et al 2007, De Castro et al 2013, Breitenbach et al 2015. Numerous studies have identified secretory, extracellular, cytosolic, microsomal peroxidases, and ones localized in cell organelles.…”

Section: Introductionmentioning

confidence: 99%

Morphological properties and levels of extracellular peroxidase activity and light emission of the basidiomycete Armillaria borealis treated with β-glucosidase and chitinase

Mogil'naya¹

2017

Mycosphere

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Mogilnaya OA, Ronzhin NO, Artemenko KS, Bondar VS 2017 -Morphological properties and levels of extracellular peroxidase activity and light emission of the basidiomycete Armillaria borealis treated with β-glucosidase and chitinase. Mycosphere 8(4), 649-659, Doi 10.5943/mycosphere/8/4/11 AbstractThe study estimates morphological properties and levels of extracellular peroxidase activity and light emission of mycelium of the basidiomycete Armillaria borealis IBSO 2328 treated with β-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 β-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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“…The higher fungi have a large set of enzymes participating in the metabolism of ROS, with superoxide dismutases, catalases, and per oxidases being the most prevalent [16][17][18]. The fungal peroxidases can be secreted, cytosolic, microsomal, or localized in the cell organelles.…”

Section: Introductionmentioning

confidence: 99%

Total peroxidase and catalase activity of luminous basidiomycetes Armillaria borealis and Neonothopanus nambi in comparison with the level of light emission

Mogil'naya

Ронжин

Medvedeva

et al. 2015

Appl Biochem Microbiol

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The peroxidase and catalase activities in the mycelium of luminous basidiomycetes Armillaria borealis and Neonothopanus nambi in normal conditions and under stress were compared. An increase in the luminescence level was observed under stress, as well as an increase in peroxidase and catalase activities. Moreover, the peroxidase activity in extracts of A. borealis mycelium was found to be almost one and a half orders of magnitude lower, and the catalase activity more than two orders of magnitude higher in comparison with the N. nambi mycelium. It can be suggested that the difference between the brightly luminescent and dimly luminescent mycelium of N. nambi is due to the content of H 2 O 2 or other peroxide compounds.

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Antioxidant defence system during exponential and stationary growth phases of Phycomyces blakesleeanus: Response to oxidative stress by hydrogen peroxide

Cited by 14 publications

References 41 publications

Functional analysis of the role of glutathione peroxidase (GPx) in the ROS signaling pathway, hyphal branching and the regulation of ganoderic acid biosynthesis in Ganoderma lucidum

Functional analysis of the role of glutathione peroxidase (GPx) in the ROS signaling pathway, hyphal branching and the regulation of ganoderic acid biosynthesis in Ganoderma lucidum

Morphological properties and levels of extracellular peroxidase activity and light emission of the basidiomycete Armillaria borealis treated with β-glucosidase and chitinase

Total peroxidase and catalase activity of luminous basidiomycetes Armillaria borealis and Neonothopanus nambi in comparison with the level of light emission

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