Genome of an endosymbiont coupling N2 fixation to cellulolysis within protist cells in termite gut

Yuichi Hongoh, Vineet K. Sharma, Tulika Prakash, Satoko Noda, Hidehiro Toh, Todd D. Taylor, Toshiaki Kudo, Yoshiyuki Sakaki, Atsushi Toyoda, Masahira Hattori, Moriya Ohkuma

研究成果: Article

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Termites harbor diverse symbiotic gut microorganisms, the majority of which are as yet uncultivable and their interrelationships unclear. Here, we present the complete genome sequence of the uncultured Bacteroidales endosymbiont of the cellulolytic protist Pseudotrichonympha grassii, which accounts for 70% of the bacterial cells in the gut of the termite Coptotermes formosanus. Functional annotation of the chromosome (1,114,206 base pairs) unveiled its ability to fix dinitrogen and recycle putative host nitrogen wastes for biosynthesis of diverse amino acids and cofactors, and import glucose and xylose as energy and carbon sources. Thus, nitrogen fixation and cellulolysis are coupled within the protist's cells. This highly evolved symbiotic system probably underlies the ability of the worldwide pest termites Coptotermes to use wood as their sole food.

元の言語English
ページ(範囲)1108-1109
ページ数2
ジャーナルScience
322
発行部数5904
DOI
出版物ステータスPublished - 2008 11 14
外部発表Yes

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フィンガープリント Genome of an endosymbiont coupling N<sub>2</sub> fixation to cellulolysis within protist cells in termite gut' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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    Hongoh, Y., Sharma, V. K., Prakash, T., Noda, S., Toh, H., Taylor, T. D., Kudo, T., Sakaki, Y., Toyoda, A., Hattori, M., & Ohkuma, M. (2008). Genome of an endosymbiont coupling N2 fixation to cellulolysis within protist cells in termite gut. Science, 322(5904), 1108-1109. https://doi.org/10.1126/science.1165578