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Title: Omics analyses and biochemical study of Phlebiopsis gigantea elucidate its degradation strategy of wood extractives

Source: Scientific Reports

Author(s)Iwata, Mana ; Gutiérrez, Ana ; Marques, Gisela ; Sabat, Grzegorz ; Kersten, Philip J.; Cullen, Daniel ; Bhatnagar, Jennifer M.; Yadav, Jagjit ; Lipzen, Anna ; Yoshinaga, Yuko ; Sharma, Aditi ; Adam, Catherine ; Daum, Christopher ; Ng, Vivian ; Grigoriev, Igor V; Hori, Chiaki

Publication Year: 2021  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4712-4C

Abstract: Wood extractives, solvent-soluble fractions of woody biomass, are considered to be a factor impeding or excluding fungal colonization on the freshly harvested conifers. Among wood decay fungi, the basidiomycete Phlebiopsis gigantea has evolved a unique enzyme system to efciently transform or degrade conifer extractives but little is known about the mechanism(s). In this study, to clarify the mechanism(s) of softwood degradation, we examined the transcriptome, proteome, and metabolome of P. gigantea when grown on defned media containing microcrystalline cellulose and pine sapwood extractives. Beyond the conventional enzymes often associated with cellulose, hemicellulose and lignin degradation, an array of enzymes implicated in the metabolism of softwood lipophilic extractives such as fatty and resin acids, steroids and glycerides was signifcantly up-regulated. Among these, a highly expressed and inducible lipase is likely responsible for lipophilic extractive degradation, based on its extracellular location and our characterization of the recombinant enzyme. Our results provide insight into physiological roles of extractives in the interaction between wood and fungi.

Keywords: Phlebiopsis gigantean; conifer; extractives; gene expression

Publication Review Process: Formally Refereed

File size: 3,072 kb(s)

Date posted: 07/13/2021

This publication is also viewable on Treesearch:  view
RITS Product ID: 10183
Current FPL Scientists associated with this product (listed alphabetically)
Cullen, Daniel
Research Microbiologist
Kersten, Philip J.
Research Microbiologist

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