Down-regulation of pyruvate decarboxylase gene of white-rot fungus Phlebia sp. MG-60 modify the metabolism of sugars and productivity of extracellular peroxidase activity

2019 ◽  
Vol 127 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Taichi Motoda ◽  
Megumi Yamaguchi ◽  
Taku Tsuyama ◽  
Ichiro Kamei
Keyword(s):  
Peroxidase Activity ◽  
Pyruvate Decarboxylase ◽  
White Rot ◽  
White Rot Fungus ◽  
Down Regulation ◽  
Extracellular Peroxidase

scholarly journals A Manganese(II)-Dependent Extracellular Peroxidase from the White-Rot Fungus Trametes versicolor.

1987 ◽  
Vol 41b ◽  
pp. 762-765 ◽  
Author(s):  
Tomas Johansson ◽  
Per Olof Nyman ◽  
Jacek Koziol ◽  
Franz Müller ◽  
Michael Sjöström
Keyword(s):  
Trametes Versicolor ◽  
White Rot ◽  
White Rot Fungus ◽  
Extracellular Peroxidase

Extracellular peroxidase reaction at hyphal tips of white-rot fungus Phanerochaete crassa WD1694 and in fungal slime

2009 ◽  
Vol 55 (4) ◽  
pp. 302-307 ◽  
Author(s):  
Mariko Takano ◽  
Noriko Hayashi ◽  
Masaya Nakamura ◽  
Muneyoshi Yamaguchi
Keyword(s):  
White Rot ◽  
White Rot Fungus ◽  
Peroxidase Reaction ◽  
Extracellular Peroxidase

scholarly journals Decolorization and biodegradation of melanoidin contained in beet molasses by an anamorphic strain of Bjerkandera adusta CCBAS930 and its mutants

2020 ◽  
Vol 37 (1) ◽  
Author(s):  
Teresa Korniłłowicz-Kowalska ◽  
Kamila Rybczyńska-Tkaczyk
Keyword(s):  
Free Radicals ◽  
Phenolic Compounds ◽  
Peroxidase Activity ◽  
Aerial Mycelium ◽  
Culture Method ◽  
White Rot ◽  
White Rot Fungus ◽  
Bjerkandera Adusta ◽  
Beet Molasses ◽  
Stimulation Of

AbstractWe used a ligninolytic strain of the white-rot fungus B. adusta CCBAS 930 and its mutants with modified ligninolytic activity to assess their potential to remove of molasses. The analyzed strains have been shown to be able to decolorize 1% or 2% molasses solutions containing brown-colored toxic melanoidins. It was found that the decolorization process was determined by the transition to the stage of production of sporulating aerial mycelium (liquid and agar cultures) coupled with an increase in peroxidase activity, which was accompanied by a decrease in the level of melanoidin, free radicals, and phenolic compounds. Four different peroxidase activities were detected in post-culture liquids, i.e. horseradish-like (HRP-like), manganese-dependent (MnP), lignin (LiP), and versatile (VP) peroxidase activities. The HRP-like peroxidase was characterized by the highest activity. The efficiency of removal of melanoidins from a 1% molasses solution by the parental strain and the mutants was dependent on the culture method. The highest efficiency was noted in immobilized cultures (threefold higher than in the mycelium-free cultures), which was accompanied by stimulation of HRP-like peroxidase activity. Mutant 930-5 was found to be the most effective in the decolorization and decomposition of melanoidin. The HRP-like activity in the immobilized cultures of B. adusta 930-5 was 640-fold higher than in the mycelium-free cultures of the fungus. Moreover, decolorization and biodegradation of melanoidin by B. adusta CCBAS 930 and 930-5 was coupled with detoxification. Graphic abstract

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