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Abstract
Termites have the unique ability to exploit lignocellulose as a primary nutrition source. Traditionally, termite lignocellulose digestion has been considered as a gut-symbiont-mediated process; however, in recent years the importance of host digestive capabilities have become apparent. Despite this growing understanding, how digestive enzymes from different origins specifically collaborate (i.e., additively or synergistically) has remained largely unknown. In a recent study, we undertook translational-genomic studies to address these questions in the lower termite Reticulitermes flavipes (Isoptera: Rhinotermitidae) and its symbiotic gut fauna. We used a combination of native gut tissue preparations and recombinant enzymes derived from the host gut transcriptome to identify synergistic collaborations between host and symbiont, and also among enzymes produced exclusively by the host termite. These findings provided important new evidence of synergistic collaboration among enzymes in the release of fermentable monosaccharides from wood lignocellulose, and laid a foundation for future integrative studies into termite digestion, symbiosis and eusociality.
