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Title: Characterizing lignin in a fungus-cultivating termite

Source: In: Proceedings, polyphenols communication, the XXIXth international conference on polyphenols. 2 p.

Author(s)Li, Hongjie ; Yelle, Daniel J.; Ralph, John ; Currie, Cameron R.; Mo, Jianchu

Publication Year: 2018  View PDF »

Category: Conference Proceedings

Abstract: Lignin is a heterogenous plant cell wall polyphenol derived primarily from hydroxycinnamyl alcohols via combinatorial radical coupling reactions containing ether- and C-C linkages [2]. Its depolymerization is challenging, making lignin a major barrier to gaining access to stored energy within lignocellulosic materials [3]. Termites from the sub family Macrotermitinae form a monophyletic group of species that have cultivated fungi (Termitomyces spp.) using wood materials and are able to decompose lignocellulose almost completely [4]. Fungus-cultivating termites have evolved in mutualistic association with multiple microbial symbionts, not only with lignocellulose-digesting basidiomycetes fungi, but also with gut microbiota associated with their fungus comb [5]. The way Macrotermitinae termites and symbiotic microbiota circumvent the lignin barrier and cleave polysaccharides into easily digestible sugars remains a mystery [5]. In this study, we examined the degradation mechanisms of wood lignin and polysaccharides through each stage of the plant substrate flow using a laboratory rearing colony of Odontotermes formosanus [6].

Keywords: Lignin; symbiosis; age polyethism; carbohydrate; NMR

Publication Review Process: Informally Refereed (Peer-Reviewed)

File size: 496 kb(s)

Date posted: 09/18/2018

This publication is also viewable on Treesearch:  view
RITS Product ID: 92111
Current FPL Scientist associated with this product
Yelle, Daniel
Research Forest Products Technologist
  

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