Moriya Ohkuma

Complex coevolutionary history of symbiotic Bacteroidales bacteria of various protists in the gut of termites (2009)

Noda, Satoko, Hongoh, Yuichi, Sato, Tomoyuki, Ohkuma, Moriya

Abstract Background The microbial community in the gut of termites is responsible for the efficient decomposition of recalcitrant lignocellulose. Prominent features of this community are its...

Molecular Phylogeny of Three Oxymonad Genera: Pyrsonympha, Dinenympha and Oxymonas (2003)

SHIGEHARU MORIYA, JOEL B. DACKS, AIKA TAKAGI, SATOKO NODA, MORIYA OHKUMA, W. FORD DOOLITTLE, ...

Oxymonads are a morphologically well-characterized and highly diverse lineage of protists. They are, however, under sampled at a molecular level. It has recently been demonstrated that a genus of...

Crystal Structure of meso-2,3-Butanediol Dehydrogenase in a Complex with NAD+ and Inhibitor Mercaptoethanol at 1.7 A Resolution for Understanding of Chiral Substrate Recognition Mechanisms (2001)

Otagiri, Masato, Kurisu, Genji, Ui, Sadaharu, Takusagawa, Yusuke, Ohkuma, Moriya, Kudo, Toshiaki, ...

The crystal structure of a ternary complex of meso-2,3-butanediol dehydrogenase with NAD+ and a competitive inhibitor, mercaptoethanol, has been determined at 1.7 � resolution by means of molecular...

Oxymonads Are Closely Related to the Excavate Taxon Trimastix (2001)

Dacks, Joel B., Silberman, Jeffrey D., Simpson, Alastair G. B., Moriya, Shigeharu, Kudo, Toshiaki, Ohkuma, Moriya, ...

Despite intensive study in recent years, large-scale eukaryote phylogeny remains poorly resolved. This is particularly problematic among the groups considered to be potential early branches. In many...

Phylogenetic Identification of Hypermastigotes, Pseudotrichonympha, Spirotrichonympha, Holomastigotoides, and Parabasalian Symbionts in the Hindgut of Termites (2000)

Moriya Ohkuma, Kuniyo Ohtoko, Toshiya Iida, Mitsunori Tokura, Shigeharu Moriya, Ron Usami, ...

The phylogenetic diversity of parabasalian flagellates was examined based on the sequences of small subunit ribosomal RNA genes amplified directly from the mixed population of flagellates in the...

Phylogenetic Diversity of Nitrogen Fixation Genes in the Symbiotic Microbial Community in the Gut of Diverse Termites

Ohkuma, Moriya, Noda, Satoko, Kudo, Toshiaki

Nitrogen fixation by the microorganisms in the gut of termites is one of the crucial aspects of symbiosis, since termites usually thrive on a nitrogen-poor diet. The phylogenetic diversity of the...

Culture-Independent Characterization of a Gene Responsible for Nitrogen Fixation in the Symbiotic Microbial Community in the Gut of the Termite Neotermes koshunensis

Noda, Satoko, Ohkuma, Moriya, Usami, Ron, Horikoshi, Koki, Kudo, Toshiaki

Expression of the nitrogen fixation gene, nifH, in the gut of the termite Neotermes koshunensis was characterized without cultivation. nifH cDNA was directly amplified from mRNA of the mixed...

Phylogenetic Position and In Situ Identification of Ectosymbiotic Spirochetes on Protists in the Termite Gut

Noda, Satoko, Ohkuma, Moriya, Yamada, Akinori, Hongoh, Yuichi, Kudo, Toshiaki

Phylogenetic relationships, diversity, and in situ identification of spirochetes in the gut of the termite Neotermes koshunensis were examined without cultivation, with an emphasis on ectosymbionts...

Intra- and Interspecific Comparisons of Bacterial Diversity and Community Structure Support Coevolution of Gut Microbiota and Termite Host†

Hongoh, Yuichi, Deevong, Pinsurang, Inoue, Tetsushi, Moriya, Shigeharu, Trakulnaleamsai, Savitr, Ohkuma, Moriya, ...

We investigated the bacterial gut microbiota from 32 colonies of wood-feeding termites, comprising four Microcerotermes species (Termitidae) and four Reticulitermes species (Rhinotermitidae), using...

Symbiotic Fungi Produce Laccases Potentially Involved in Phenol Degradation in Fungus Combs of Fungus-Growing Termites in Thailand†

Taprab, Yaovapa, Johjima, Toru, Maeda, Yoshimasa, Moriya, Shigeharu, Trakulnaleamsai, Savitr, Noparatnaraporn, Napavarn, ...

Fungus-growing termites efficiently decompose plant litter through their symbiotic relationship with basidiomycete fungi of the genus Termitomyces. Here, we investigated phenol-oxidizing enzymes in...

Endosymbiotic Bacteroidales Bacteria of the Flagellated Protist Pseudotrichonympha grassii in the Gut of the Termite Coptotermes formosanus

Noda, Satoko, Iida, Toshiya, Kitade, Osamu, Nakajima, Hideaki, Kudo, Toshiaki, Ohkuma, Moriya

A unique lineage of bacteria belonging to the order Bacteroidales was identified as an intracellular endosymbiont of the protist Pseudotrichonympha grassii (Parabasalia, Hypermastigea) in the gut of...

Phylogenetic Diversity of Nitrogen Fixation Genes in the Symbiotic Microbial Community in the Gut of Diverse Termites

Ohkuma, Moriya, Noda, Satoko, Kudo, Toshiaki

Nitrogen fixation by the microorganisms in the gut of termites is one of the crucial aspects of symbiosis, since termites usually thrive on a nitrogen-poor diet. The phylogenetic diversity of the...

Culture-Independent Characterization of a Gene Responsible for Nitrogen Fixation in the Symbiotic Microbial Community in the Gut of the Termite Neotermes koshunensis

Noda, Satoko, Ohkuma, Moriya, Usami, Ron, Horikoshi, Koki, Kudo, Toshiaki

Expression of the nitrogen fixation gene, nifH, in the gut of the termite Neotermes koshunensis was characterized without cultivation. nifH cDNA was directly amplified from mRNA of the mixed...

Phylogenetic Position and In Situ Identification of Ectosymbiotic Spirochetes on Protists in the Termite Gut

Noda, Satoko, Ohkuma, Moriya, Yamada, Akinori, Hongoh, Yuichi, Kudo, Toshiaki

Phylogenetic relationships, diversity, and in situ identification of spirochetes in the gut of the termite Neotermes koshunensis were examined without cultivation, with an emphasis on ectosymbionts...

Intra- and Interspecific Comparisons of Bacterial Diversity and Community Structure Support Coevolution of Gut Microbiota and Termite Host†

Hongoh, Yuichi, Deevong, Pinsurang, Inoue, Tetsushi, Moriya, Shigeharu, Trakulnaleamsai, Savitr, Ohkuma, Moriya, ...

We investigated the bacterial gut microbiota from 32 colonies of wood-feeding termites, comprising four Microcerotermes species (Termitidae) and four Reticulitermes species (Rhinotermitidae), using...

Symbiotic Fungi Produce Laccases Potentially Involved in Phenol Degradation in Fungus Combs of Fungus-Growing Termites in Thailand†

Taprab, Yaovapa, Johjima, Toru, Maeda, Yoshimasa, Moriya, Shigeharu, Trakulnaleamsai, Savitr, Noparatnaraporn, Napavarn, ...

Fungus-growing termites efficiently decompose plant litter through their symbiotic relationship with basidiomycete fungi of the genus Termitomyces. Here, we investigated phenol-oxidizing enzymes in...

Endosymbiotic Bacteroidales Bacteria of the Flagellated Protist Pseudotrichonympha grassii in the Gut of the Termite Coptotermes formosanus

Noda, Satoko, Iida, Toshiya, Kitade, Osamu, Nakajima, Hideaki, Kudo, Toshiaki, Ohkuma, Moriya

A unique lineage of bacteria belonging to the order Bacteroidales was identified as an intracellular endosymbiont of the protist Pseudotrichonympha grassii (Parabasalia, Hypermastigea) in the gut of...

Phylogenetic Diversity, Localization, and Cell Morphologies of Members of the Candidate Phylum TG3 and a Subphylum in the Phylum Fibrobacteres, Recently Discovered Bacterial Groups Dominant in Termite Guts▿ †

Hongoh, Yuichi, Deevong, Pinsurang, Hattori, Satoshi, Inoue, Tetsushi, Noda, Satoko, Noparatnaraporn, Napavarn, ...

Recently we discovered two novel, deeply branching lineages in the domain Bacteria from termite guts by PCR-based analyses of 16S rRNA (Y. Hongoh, P. Deevong, T. Inoue, S. Moriya, S. Trakulnaleamsai,...

Hydrogen Production by Termite Gut Protists: Characterization of Iron Hydrogenases of Parabasalian Symbionts of the Termite Coptotermes formosanus▿ †

Inoue, Jun-Ichi, Saita, Kanako, Kudo, Toshiaki, Ui, Sadaharu, Ohkuma, Moriya

Cellulolytic flagellated protists in the guts of termites produce molecular hydrogen (H2) that is emitted by the termites; however, little is known about the physiology and biochemistry of H2...

The Motility Symbiont of the Termite Gut Flagellate Caduceia versatilis Is a Member of the “Synergistes” Group▿ †

Hongoh, Yuichi, Sato, Tomoyuki, Dolan, Michael F., Noda, Satoko, Ui, Sadaharu, Kudo, Toshiaki, ...

The flagellate Caduceia versatilis in the gut of the termite Cryptotermes cavifrons reportedly propels itself not by its own flagella but solely by the flagella of ectosymbiotic bacteria. Previous...

Complete genome of the uncultured Termite Group 1 bacteria in a single host protist cell

Hongoh, Yuichi, Sharma, Vineet K., Prakash, Tulika, Noda, Satoko, Taylor, Todd D., Kudo, Toshiaki, ...

Termites harbor a symbiotic gut microbial community that is responsible for their ability to thrive on recalcitrant plant matter. The community comprises diverse microorganisms, most of which are as...