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Changes in oxidative enzyme activity during interspecific mycelial interactions involving the white-rot fungus Trametes versicolor
- Source :
-
Fungal Genetics & Biology . Jun2010, Vol. 47 Issue 6, p562-571. 10p. - Publication Year :
- 2010
-
Abstract
- Abstract: Interspecific fungal antagonism leads to biochemical changes in competing mycelia, including up-regulation of oxidative enzymes. Laccase, manganese peroxidase (MnP), manganese-repressed peroxidase (MRP) and lignin peroxidase (LiP) gene expression and enzyme activity were compared during agar interactions between Trametes versicolor and five other wood decay fungi resulting in a range of interaction outcomes from deadlock to replacement of one fungus by another. Increased laccase and Mn-oxidising activities were detected at all interaction zones, but there were few changes in activity in regions away from the interaction zone in T. versicolor mycelia compared to self-pairings. Whilst no LiP activity was detected in any pairing, low level LiP gene expression was detected. MnP activity was detected but not expression of MnP genes; instead, MRP could explain the observed activity. No relationship was found between extent of enzyme activity increase and interaction outcome. Similarities between patterns of gene expression and enzyme activity are discussed. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 10871845
- Volume :
- 47
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Fungal Genetics & Biology
- Publication Type :
- Academic Journal
- Accession number :
- 50714953
- Full Text :
- https://doi.org/10.1016/j.fgb.2010.03.007