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Journal Articles

DNA gyrase of ${it Deinococcus radiodurans}$ is characterized as Type II bacterial topoisomerase and its activity is differentially regulated by PprA in vitro

Kota, S.*; Rajpurohit, Y. S.*; Charaka, V. K.*; Sato, Katsuya; Narumi, Issey*; Misra, H, S.*

Extremophiles, 20(2), p.195 - 205, 2016/03

 Times Cited Count:8 Percentile:54.89(Biochemistry & Molecular Biology)

Journal Articles

Screening of cesium-accumulating mutant of radioresistant bacterium ${it Deinococcus radiodurans}$ by ion beam breeding technology

Sato, Katsuya; Ueda, Ryoshiro*; Hase, Yoshihiro; Narumi, Issey*; Ono, Yutaka

JAEA-Review 2015-022, JAEA Takasaki Annual Report 2014, P. 100, 2016/02

Journal Articles

Accumulation of cesium and its association with intracellular polyphosphate in ${it Deinococcus radiodurans}$

Ueda, Ryoshiro*; Sato, Katsuya; Hayashi, Hidenori*; Narumi, Issey*; Ono, Yutaka

JAEA-Review 2015-022, JAEA Takasaki Annual Report 2014, P. 101, 2016/02

Journal Articles

Draft genome sequence of the radioresistant bacterium ${it Deinococcus grandis}$, isolated from freshwater fish in Japan

Sato, Katsuya; Onodera, Takefumi*; Omoso, Kota*; Takeda-Yano, Kiyoko*; Katayama, Takeshi*; Ono, Yutaka; Narumi, Issey*

Genome Announcements (Internet), 4(1), p.e01631-15_1 - e01631-15_2, 2016/01

Journal Articles

${it Arabidopsis pab1}$, a mutant with reduced anthocyanins in immature seeds from $$banyuls$$, harbors a mutation in the MATE transporter $$FFT$$

Kitamura, Satoshi; Ono, Yutaka; Narumi, Issey*

Plant Molecular Biology, 90(1-2), p.7 - 18, 2016/01

 Times Cited Count:12 Percentile:31.25(Biochemistry & Molecular Biology)

Here, we used the Arabidopsis banyuls (ban) mutant, which accumulates anthocyanins, instead of colorless proanthocyanidin precursors, in immature seeds. We mutagenized ban plants and screened for mutants showing differences in pigmentation of immature seeds. The pale banyuls1 (pab1) mutation caused reduced anthocyanin pigmentation in immature seeds compared with ban, but showed normal expression of anthocyanin biosynthetic genes. Map-based cloning showed that two independent pab1 alleles disrupted the MATE-type transporter gene FFT/DTX35. Complementation of pab1 with FFT confirmed that mutation in FFT causes the pab1 phenotype. During development, FFT promoter activity was detected in the seed-coat layers that accumulate flavonoids. Anthocyanins accumulate in the vacuole and FFT fused to GFP mainly localized in the vacuolar membrane.

Journal Articles

Draft genome sequence of ${it Methylobacterium}$ sp. ME121, isolated from soil as a mixed single colony with ${it Kaistia}$ sp. 32K

Fujinami, Shun*; Takeda, Kiyoko*; Onodera, Takefumi*; Sato, Katsuya; Shimizu, Tetsu*; Wakabayashi, Yu*; Narumi, Issey*; Nakamura, Akira*; Ito, Masahiro*

Genome Announcements (Internet), 3(5), p.e01005-15_1 - e01005-15_2, 2015/09

Journal Articles

Modification of cesium absorption in plants and microorganisms by the ion-beam breeding technology

Ono, Yutaka; Hase, Yoshihiro; Sato, Katsuya; Nozawa, Shigeki; Narumi, Issey*

Hoshasen To Sangyo, (138), p.17 - 20, 2015/06

no abstracts in English

Journal Articles

Isolation of carbon ions-induced mutants in ${{it Arabidopsis thaliana}}$ exhibiting different anthocyanin accumulation patterns

Kitamura, Satoshi; Ono, Yutaka; Narumi, Issey*

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 72, 2015/03

Ion beams have been used for isolation of novel mutants in a number of plant species in our laboratory. Re-mutagenesis by secondary irradiation of ion beams to already-established ion beam-induced mutants would be effective to modify plant characters step-by-step, because ion beams are likely to induce mutations at the limited regions of the genome. Here, we try to adapt the re-mutagenesis by secondary ion beam irradiation in model plant ${{it Arabidopsis}}$, for obtaining flavonoid mutants that have not been found so far by standard mutagenesis and screening methods.

Journal Articles

Development of cesium-accumulating bacteria by ion beam breeding technology

Sato, Katsuya; Ueda, Ryoshiro; Hase, Yoshihiro; Narumi, Issey*; Ono, Yutaka

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 117, 2015/03

Journal Articles

Molecular analysis of polyphosphate biosynthesis-related genes in ${it Deinococcus radiodurans}$

Ueda, Ryoshiro; Sato, Katsuya; Hayashi, Hidenori*; Narumi, Issey*; Ono, Yutaka

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 118, 2015/03

Journal Articles

Genome analysis of the high temperature tolerant mutant of ${it Bradyrhizobium japonicum}$ USDA110 generated by ion-beam irradiation

Takeda, Kiyoko*; Sato, Katsuya; Narumi, Issey*; Ono, Yutaka; Otsu, Naoko*; Yokoyama, Tadashi*

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 120, 2015/03

Journal Articles

Thermotolerant mutants of entomopathogenic fungi obtained by ion beam- and $$gamma$$ ray-induced mutagenesis

Saito, Tsutomu*; Fitriana, Y.*; Sato, Katsuya; Ono, Yutaka; Narumi, Issey*

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 121, 2015/03

Journal Articles

Role of DNA repair and effect of herbal extract on LOH induced by ion beam radiations in ${it Saccharomyces cerevisiae}$

Nunoshiba, Tatsuo*; Yamauchi, Ayako*; Iwata, Rika*; Sato, Katsuya; Ono, Yutaka; Narumi, Issey*

JAEA-Review 2014-050, JAEA Takasaki Annual Report 2013, P. 124, 2015/03

Journal Articles

Benomyl-resistant ${it Beauveria bassiana}$ (Hypocreales: Clavicipitaceae) mutants induced by ion beams

Fitriana, Y.*; Shinohara, Shinobu*; Sato, Katsuya; Narumi, Issey*; Saito, Tsutomu*

Applied Entomology and Zoology, 50(1), p.123 - 129, 2015/02

 Times Cited Count:0 Percentile:100(Chemistry, Physical)

Journal Articles

Metabolic alterations in leaves of oxalate-rich plant ${it Rumex obtusifolius}$ L. irradiated by $$gamma$$ rays

Kitano, Sayaka*; Miyagi, Atsuko*; Ono, Yutaka; Hase, Yoshihiro; Narumi, Issey*; Yamaguchi, Masatoshi*; Uchimiya, Hirofumi*; Kawai, Maki*

Metabolomics, 11(1), p.134 - 142, 2015/02

 Times Cited Count:8 Percentile:62.14(Endocrinology & Metabolism)

Journal Articles

Draft genome sequence of ${it Bacillus alcalophilus}$ AV1934, a classic alkaliphile isolated from human feces in 1934

Attie, O.*; Jayaprakash, A.*; Shah, H.*; Paulsen, I. T.*; Morino, Masato*; Takahashi, Yuka*; Narumi, Issey*; Sachidanandam, R.*; Sato, Katsuya; Ito, Masahiro*; et al.

Genome Announcements (Internet), 2(6), p.e01175-14_1 - e01175-14_2, 2014/11

Journal Articles

Interaction of double-stranded DNA with polymerized PprA protein from ${it Deinococcus radiodurans}$

Adachi, Motoyasu; Hirayama, Hiroshi; Shimizu, Rumi; Sato, Katsuya; Narumi, Issey*; Kuroki, Ryota

Protein Science, 23(10), p.1349 - 1358, 2014/10

 Times Cited Count:7 Percentile:71.61(Biochemistry & Molecular Biology)

Pleiotropic protein promoting DNA repair A (PprA) is a key protein that facilitates the extreme radioresistance of ${it Deinococcus radiodurans}$. To clarify the role of PprA in the radioresistance mechanism, the interaction between recombinant PprA expressed in Escherichia coli with several double-stranded DNAs was investigated. In a gel-shift assay, the band shift of supercoiled pUC19 DNA caused by the binding of PprA showed a bimodal distribution, which was promoted by the addition of 1 mM Mg, Ca, or Sr ions. The dissociation constant of the PprA-supercoiled pUC19 DNA complex, calculated from the relative portions of shifted bands, was 0.6 $$mu$$M with a Hill coefficient of 3.3 in the presence of 1 mM Mg acetate. This indicates that at least 281 PprA molecules are required to saturate a supercoiled pUC19 DNA, which is consistent with the number of bound PprA molecules estimated by the UV absorption of the PprA-pUC19 complex purified by gel filtration. This saturation also suggests linear polymerization of PprA along the dsDNA. On the other hand, the bands of linear dsDNA and nicked circular dsDNA that eventually formed PprA complexes did not saturate, but created larger molecular complexes when the PprA concentration was greater than 1.3 $$mu$$M. This result implies that DNA-bound PprA aids association of the termini of damaged DNAs, which is regulated by the concentration of PprA.

Journal Articles

Draft genome sequence of calcium-dependent ${it Paenibacillus}$ sp. strain TCA20, isolated from a hot spring containing a high concentration of calcium ions

Fujinami, Shun*; Takeda, Kiyoko*; Onodera, Takefumi*; Sato, Katsuya; Sano, Motohiko*; Takahashi, Yuka*; Narumi, Issey*; Ito, Masahiro*

Genome Announcements (Internet), 2(5), p.e00866-14_1 - e00866-14_2, 2014/09

Journal Articles

Ion-beam and $$gamma$$-ray irradiations induce thermotolerant mutants in the entomopathogenic fungus ${it Metarhizium anisopliae s.l.}$

Fitriana, Y.*; Sato, Katsuya; Narumi, Issey*; Saito, Tsutomu*

Biocontrol Science and Technology, 24(9), p.1052 - 1061, 2014/06

 Times Cited Count:2 Percentile:83.08(Biotechnology & Applied Microbiology)

Journal Articles

Draft genome sequence of potassium-dependent alkaliphilic ${it Bacillus}$ sp. strain TS-2, isolated from a jumping spider

Fujinami, Shun*; Takeda, Kiyoko*; Onodera, Takefumi*; Sato, Katsuya; Sano, Motohiko*; Narumi, Issey*; Ito, Masahiro*

Genome Announcements (Internet), 2(3), p.e00458-14_1 - e00458-14_2, 2014/05

97 (Records 1-20 displayed on this page)