Home • Trametes maxima CIRM-BRFM 1813 v1.0
Picture from Pierre-Arthur Moreau, Université de Lille, France
Picture from Pierre-Arthur Moreau, Université de Lille, France

This genome was sequenced as part of the JGI CSP “Survey of the lignocellulolytic capabilities over the order Polyporales” project. Within Agaricomycotina, the order Polyporales is the major group of wood decayers in temperate and tropical forests. As such, Polyporales have a pivotal role in the global carbon cycle. Polyporales include a large number of white-rot filamentous fungi able to totally degrade lignin from wood through the production of extracellular lignin-degrading enzymes including laccases, lignin peroxidases and manganese peroxidases. Lignocellulose is a high potential renewable resource for the production of biofuels and chemicals, including high-value chemicals, from biomass. As a consequence, white-rot filamentous fungi have a high potential for biotechnological processes, particularly for lignocellulosic feedstock biorefinery applications.

Trametes maxima (Mont.) A. David & Rajchenb. is a tropical white-rot fungus which grows on logs or dead trunks in hygrophile or mesophile areas. The pileus is broadly and strongly attached, sessile to effused reflexed or dimidiate to largely fan-shaped, white to pale yellow. The pilear surface is strigose to wooly in several concentric zones, or often green when colonized by algae. The hymenophore is pinkish white and pores become reddish-yellow when dry. The pores are quickly angular with deffating dissepiment. T. maxima has been identified as a producer of laccase, manganese peroxidase, and lignin peroxidase. It has shown interesting capabilities for the transformation of coal humic substances and for dyes and textile industrial effluents decolorization in liquid cultures and solid state fermentations.

The genome sequencing for T. maxima will allow exploration of novel biocatalysts and deepen our understanding of the functional diversity among the Polyporales, i.e. enzymatic capabilities linked to plant cell wall modifications.