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Journal Articles

Occurrence and potential activity of denitrifiers and methanogens in groundwater at 140 m depth in Pliocene diatomaceous mudstone of northern Japan

Katsuyama, Chie*; Nashimoto, Hiroaki*; Nagaosa, Kazuyo*; Ishibashi, Tomotaka*; Furuta, Kazuki*; Kinoshita, Takeshi*; Yoshikawa, Hideki; Aoki, Kazuhiro; Asano, Takahiro*; Sasaki, Yoshito; et al.

FEMS Microbiology Ecology, 86(3), p.532 - 543, 2013/12

 Times Cited Count:14 Percentile:36.72(Microbiology)

Anaerobic microbial activity has a major influence on the subsurface environment, and should be considered in subsurface activities including the construction of radioactive waste repositories. We investigated denitrification and methanogenesis in anoxic groundwater from 140 m depth in two boreholes, where the redox potential fluctuated. The average maximum potential denitrification rates, measured under anaerobic conditions in the two boreholes using an $$^{15}$$N tracer. Methanogenesis candidates were detected by 16S rRNA gene analysis. Although the stable isotope signatures suggested that some of the dissolved methane was of biogenic origin, no potential for methane production was evident during the incubations. The groundwater at 140 m depth did not contain oxygen, had an Eh ranging from -144 to 6.8 mV, and was found to be a potential field for denitrification.

Journal Articles

Noninvasive analysis of photoassimilate translocation in tomato leaves under the dark condition by using $$^{11}$$CO$$_{2}$$ and a positron-emitting tracer imaging system

Suwa, Ryuichi*; Ishii, Satomi; Suzui, Nobuo; Ishioka, Noriko; Fujimaki, Shu; Matsuhashi, Shimpei; Fujita, Konosuke*; Kawachi, Naoki

JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 109, 2008/11

Journal Articles

Use of positron-emitting tracer imaging system for measuring the effect of salinity on temporal and spatial distribution of $$^{11}$$C tracer and coupling between source and sink organs

Suwa, Ryuichi*; Fujimaki, Shu; Suzui, Nobuo; Kawachi, Naoki; Ishii, Satomi; Sakamoto, Koichi*; Nguyen, N. T.*; Saneoka, Hirofumi*; Mohapatra, P. K.*; Moghaieb, R. E.*; et al.

Plant Science, 175(3), p.210 - 216, 2008/09

 Times Cited Count:18 Percentile:45.41(Biochemistry & Molecular Biology)

Journal Articles

The H-Invitational Database (H-InvDB); A Comprehensive annotation resource for human genes and transcripts

Yamasaki, Chisato*; Murakami, Katsuhiko*; Fujii, Yasuyuki*; Sato, Yoshiharu*; Harada, Erimi*; Takeda, Junichi*; Taniya, Takayuki*; Sakate, Ryuichi*; Kikugawa, Shingo*; Shimada, Makoto*; et al.

Nucleic Acids Research, 36(Database), p.D793 - D799, 2008/01

 Times Cited Count:51 Percentile:71.25(Biochemistry & Molecular Biology)

Here we report the new features and improvements in our latest release of the H-Invitational Database, a comprehensive annotation resource for human genes and transcripts. H-InvDB, originally developed as an integrated database of the human transcriptome based on extensive annotation of large sets of fulllength cDNA (FLcDNA) clones, now provides annotation for 120 558 human mRNAs extracted from the International Nucleotide Sequence Databases (INSD), in addition to 54 978 human FLcDNAs, in the latest release H-InvDB. We mapped those human transcripts onto the human genome sequences (NCBI build 36.1) and determined 34 699 human gene clusters, which could define 34 057 protein-coding and 642 non-protein-coding loci; 858 transcribed loci overlapped with predicted pseudogenes.

Journal Articles

Determination of photosynthesis and partitioning rate using by PETIS

Suwa, Ryuichi*; Ishii, Satomi; Kawachi, Naoki; Fujimaki, Shu; Suzui, Nobuo; Suto, Hiroyuki*; Matsuhashi, Shimpei; Fujita, Konosuke*

JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 123, 2007/02

Oral presentation

Noninvasive analysis of photoassimilate translocation in tomato leaves under the dark condition by using $$^{11}$$CO$$_{2}$$ and a positron-emitting tracer imaging system

Suwa, Ryuichi*; Ishii, Satomi; Suzui, Nobuo; Ishioka, Noriko; Fujimaki, Shu; Matsuhashi, Shimpei; Kawachi, Naoki; Fujita, Konosuke*

no journal, , 

no abstracts in English

Oral presentation

Denitrification in groundwater at 140 m depth in sedimentary horizon

Katsuyama, Chie*; Nashimoto, Hiroaki*; Ishibashi, Tomotaka*; Furuta, Kazuki*; Nagaosa, Kazuyo*; Yoshikawa, Hideki; Asano, Takahiro; Sasaki, Yoshito; Aoki, Kazuhiro; Suwa, Yuichi*; et al.

no journal, , 

no abstracts in English

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