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Hemocyanin facilitates lignocellulose digestion by wood-boring marine crustaceans
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(2018) Hemocyanin facilitates lignocellulose digestion by wood-boring marine crustaceans. Nature Communications, 9 (1). 5125. doi:10.1038/s41467-018-07575-2 ISSN 2041-1723.
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WRAP-hemocyanin-facilitates-lignocellulose-digestion-wood-boring-marine-crustaceans-Dupree-2018.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2144Kb) | Preview |
Official URL: http://dx.doi.org/10.1038/s41467-018-07575-2
Abstract
Woody (lignocellulosic) plant biomass is an abundant renewable feedstock, rich in polysaccharides that are bound into an insoluble fiber composite with lignin. Marine crustacean woodborers of the genus Limnoria are among the few animals that can survive on a diet of this recalcitrant material without relying on gut resident microbiota. Analysis of fecal pellets revealed that Limnoria targets hexose-containing polysaccharides (mainly cellulose, and also glucomannans), corresponding with the abundance of cellulases in their digestive system, but xylans and lignin are largely unconsumed. We show that the limnoriid respiratory protein, hemocyanin, is abundant in the hindgut where wood is digested, that incubation of wood with hemocyanin markedly enhances its digestibility by cellulases, and that it modifies lignin. We propose that this activity of hemocyanins is instrumental to the ability of Limnoria to feed on wood in the absence of gut symbionts. These findings may hold potential for innovations in lignocellulose biorefining.
| Item Type: | Journal Article | |||||||||||||||||||||||||||
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| Subjects: | Q Science > QL Zoology S Agriculture > SF Animal culture |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Lignocellulose in animal nutrition, Limnoria, Polysaccharides, Xylans | |||||||||||||||||||||||||||
| Journal or Publication Title: | Nature Communications | |||||||||||||||||||||||||||
| Publisher: | Nature Publishing Group | |||||||||||||||||||||||||||
| ISSN: | 2041-1723 | |||||||||||||||||||||||||||
| Official Date: | 3 December 2018 | |||||||||||||||||||||||||||
| Dates: |
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| Volume: | 9 | |||||||||||||||||||||||||||
| Number: | 1 | |||||||||||||||||||||||||||
| Article Number: | 5125 | |||||||||||||||||||||||||||
| DOI: | 10.1038/s41467-018-07575-2 | |||||||||||||||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||||||||||||||
| Publication Status: | Published | |||||||||||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||||||||||||||||||||
| Date of first compliant deposit: | 5 December 2018 | |||||||||||||||||||||||||||
| Date of first compliant Open Access: | 5 December 2018 | |||||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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