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Journal Articles

Production rates of long-lived radionuclides $$^{10}$$Be and $$^{26}$$Al under direct muon-induced spallation in granite quartz and its implications for past high-energy cosmic ray fluxes

Sakurai, Hirohisa*; Kurebayashi, Yutaka*; Suzuki, Soichiro*; Horiuchi, Kazuho*; Takahashi, Yui*; Doshita, Norihiro*; Kikuchi, Satoshi*; Tokanai, Fuyuki*; Iwata, Naoyoshi*; Tajima, Yasushi*; et al.

Physical Review D, 109(10), p.102005_1 - 102005_18, 2024/05

https://doi.org/10.1103/PhysRevD.109.102005
 Times Cited Count：0 Percentile：0.00(Astronomy & Astrophysics)

Secular variations of galactic cosmic rays (GCRs) are inseparably associated with the galactic activities and should reflect the environments of the local galactic magnetic field, interstellar clouds, and nearby supernova remnants. The high-energy muons produced in the atmosphere by high-energy GCRs can penetrate deep underground and generate radioisotopes in the rock. As long lived radionuclides such as $$^{10}$$Be and $$^{26}$$Al have been accumulating in these rocks, concentrations of $$^{10}$$Be and $$^{26}$$Al can be used to estimate the long-term variations in high-energy muon yields, corresponding to those in the high-energy GCRs over a few million years. This study measured the production cross sections for muon induced $$^{10}$$Be and $$^{26}$$Al by irradiating positive muons with the momentum of 160 GeV/c on the synthetic silica plates and the granite core at the COMPASS experiment line in CERN SPS. In addition, it the contributions of the direct muon spallation reaction and the nuclear reactions by muon-induced particles on the production of long lived radionuclides in the rocks were clarified.

Journal Articles

Isolation and characterization of the fragrant cyclamen ${it O}$-methyltransferase involved in flower coloration

Akita, Yusuke; Kitamura, Satoshi; Hase, Yoshihiro; Narumi, Issei; Ishizaka, Hiroshi*; Kondo, Emiko*; Kameari, Naoko*; Nakayama, Masayoshi*; Tanikawa, Natsu*; Morita, Yasumasa*; et al.

Planta, 234(6), p.1127 - 1136, 2011/12

https://doi.org/10.1007/s00425-011-1466-0
 Times Cited Count：44 Percentile：75.48(Plant Sciences)

Journal Articles

Red-purple flower due to delphinidin 3,5-diglucoside, a novel pigment for ${it Cyclamen}$ spp., generated by ion-beam irraidation

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

JAEA-Review 2010-065, JAEA Takasaki Annual Report 2009, P. 65, 2011/01

https://jopss.jaea.go.jp/pdfdata/JAEA-Review-2010-065.pdf

no abstracts in English

Journal Articles

Red-purple flower due to delphinidin 3,5-diglucosides, a novel pigment for ${it Cyclamen}$ spp., generated by ion-beam irradiation

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

Plant Biotechnology, 26(5), p.565 - 569, 2009/01

https://doi.org/10.5511/plantbiotechnology.26.565
 Times Cited Count：37 Percentile：68.06(Biotechnology & Applied Microbiology)

Fragrant cyclamen cultivar (${it C. persicum}$ $$times$$ ${it C. purpurascens}$), that bloomed purple flower containing malvidin 3,5-diglucoside as the major anthocyanin, was irradiated with a 320-MeV carbon-ion beam at 0-16 Gy to increase flower color variation by mutation. Some of the M2 plants derived from self-pollination of M1 plants irradiated at 2 Gy were flower-color mutants that retained desirable flower shape, flower size, and leaf color. One of the mutants bloomed novel red-purple flowers, the major anthocyanin of which was delphinidin 3,5-diglucoside. Because the major anthocyanins in flowers of ${it Cyclamen}$ spp. were previously restricted to malvidin, peonidin, and cyanidin types, the generation of a cyclamen containing mostly the delphinidin-type anthocyanin is an important breakthrough in cyclamen breeding. We expect this mutant to become not only a commercial cultivar itself, but also a valuable genetic resource for cyclamen breeding.

Journal Articles

Mutation induction by ion-beam irradiation in fragrance cyclamen (${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$)

Kondo, Emiko*; Hase, Yoshihiro; Narumi, Issei; Ishizaka, Hiroshi*

JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 79, 2008/11

https://jopss.jaea.go.jp/pdfdata/JAEA-Review-2008-055.pdf

no abstracts in English

Oral presentation

Analyses of flower pigments and volatile compounds of red-purple mutant generated by ion beam irradiation from haploid of fragrant purple cyclamen "Kaori-no-mai"(${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$)

Kameari, Naoko*; Nakayama, Masayoshi*; Kondo, Emiko*; Kurihara, Yasushi*; Akita, Yusuke; Hase, Yoshihiro; Tanikawa, Natsu*; Morita, Yasumasa*; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Analyses of flower pigments and volatile compounds of red-purple mutants generated by ion beam irradiation from fragrant purple cyclamen "Kaori-no-mai"(${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$)

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Kurihara, Yasushi*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Analyses of flower pigments and volatile compounds of white mutants generated by ion beam irradiation from fragrant purple cyclamen "Kokou-no-kaori"(${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$)

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Kurihara, Yasushi*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Mutation induction by ion-beam irradiation in interspecific hybrid (${it Cyclamen persicum}$ $$times$$ ${it C.purpurascens}$)

Kondo, Emiko*; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Doubled haploid induction from haploid of fragrant cyclamen (${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$) by ion beam re-irradiation

Kondo, Emiko*; Kameari, Naoko*; Kitamura, Satoshi; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Nakayama, Masayoshi*; Tanikawa, Natsu*; Morita, Yasumasa*; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Analysis of flower pigment of mutants generated from fragrant purple cyclamen "Kaori-no-mai" (${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$) by ion beam irradiation

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Kitamura, Satoshi; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Molecular characterization of flower color mutants in fragrant cyclamen induced by ion-beam irradiation

Akita, Yusuke; Kitamura, Satoshi; Hase, Yoshihiro; Narumi, Issei; Ishizaka, Hiroshi*; Kondo, Emiko*; Kameari, Naoko*; Nakayama, Masayoshi*; Tanikawa, Natsu*; Morita, Yasumasa*; et al.

no journal, , 

no abstracts in English

Oral presentation

Induction of mutants from fragrant cyclamen "Uruwashi-no-kaori" (${it Cyclamen persicum}$ $$times$$ ${it C. purpurascens}$) by ion-beam irradiation and analysis of their flower pigments

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Kitamura, Satoshi; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Characteristics of yellow-flowered mutant generated from dihaploid of fragrant cyclamen (${it Cyclamen persicum}$ "Golden Boy" $$times$$ ${it C. purpurascens}$) by ion-beam irradiation

Kameari, Naoko*; Akita, Yusuke; Kitamura, Satoshi; Hase, Yoshihiro; Kondo, Emiko*; Nakayama, Masayoshi*; Kurihara, Yasushi*; Tanikawa, Natsu*; Morita, Yasumasa*; Tanaka, Atsushi; et al.

no journal, , 

no abstracts in English

Oral presentation

Molecular analysis of anthocyanin biosynthesis genes, and creation of new colored flower cultivars from fragrant cyclamen

Akita, Yusuke*; Kitamura, Satoshi; Hase, Yoshihiro; Narumi, Issey*; Ishizaka, Hiroshi*; Kondo, Emiko*; Kameari, Naoko*; Nakayama, Masayoshi*; Tanaka, Atsushi

no journal, , 

In this study, using several flower-colored mutants and their parents, we analyzed flavonoid composition in flowers by HPLC, and isolated anthocyanin biosynthetic genes by degenerate PCR. We isolated several anthocyanin biosynthetic genes from C. graecum, C. purpurascens and fragrant cyclamen cultivars. Then, we analyzed their expression patterns between wild-type and flower-colored mutants. Based on their comparison, we selected candidates for anthocyanin biosynthetic genes and confirmed their enzymatic activities in vitro. Furthermore, we also demonstrated the effectiveness of PCR-based screening method in early growth stage of mutagenized cyclamen, using newly developed DNA markers.

Oral presentation

Fragrance cyclamen spp. generated by ion-beam irradiation that have delphinidin 3,5-diglucoside as a major pigment

Kondo, Emiko*; Kameari, Naoko*; Ishizaka, Hiroshi*; Nakayama, Masayoshi*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi

no journal, , 

no abstracts in English

Oral presentation

Floral scent components in a white mutant generated from fragrant purple cyclamen "Kokou-no-kaori" (${it Cyclamenpersicum}$ $$times$$ ${it C. purpurascens}$) by ion beam irradiation

Kameari, Naoko*; Okubo, Naomi*; Kondo, Emiko*; Nakayama, Masayoshi*; Akita, Yusuke; Hase, Yoshihiro; Tanikawa, Natsu*; Morita, Yasumasa*; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Creation of mutants of fragrance cyclamen by ion beam irradiation

Kondo, Emiko*; Ishizaka, Hiroshi*; Hase, Yoshihiro; Narumi, Issei

no journal, , 

no abstracts in English

Oral presentation

Mutation induction in fragrance cyclamen (${it Cyclamen persicum}$ x ${it C. purpurascens}$) by ion beam re-irradiation

Kondo, Emiko*; Kameari, Naoko*; Nakayama, Masayoshi*; Akita, Yusuke; Hase, Yoshihiro; Tanikawa, Natsu*; Morita, Yasumasa*; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

Oral presentation

Induction of flower color mutation in fragrance cyclamen, "Kaori-no-mai" by ion beam irradiation

Kondo, Emiko*; Nakayama, Masayoshi*; Kameari, Naoko*; Tanikawa, Natsu*; Morita, Yasumasa*; Akita, Yusuke; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

One of the fragrant cyclamens, Kaori-no-mai, blooms purple flowers containing malvidin 3,5-diglucoside as the major anthocyanin. Here, we irradiated etiolated petioles of Kaori-no-mai with a 320-MeV carbon-ion beam to increase flower color variation by mutation. Some of the M2 plants derived from self-pollination of M1 plants were flower-color mutan. One of the mutants bloomed novel red-purple flowers, the major anthocyanin of which was delphinidin 3,5-diglucoside. The major anthocyanins in flowers of ${it Cyclamen }$ spp. were previously restricted to malvidin, peonidin, and cyanidin types, therefore, the generation of a cyclamen containing mostly the delphinidin-type anthocyanin is an important breakthrough in cyclamen breeding. We expect this mutant to become not only a commercial cultivar itself, but also a valuable genetic resource for cyclamen breeding.

Oral presentation

Mutation induction in fragrance cyclamen "Uruwashi-no-kaori" by ion beam irradiation

Kondo, Emiko*; Kameari, Naoko*; Nakayama, Masayoshi*; Kurihara, Yasushi*; Akita, Yusuke; Tanikawa, Natsu*; Morita, Yasumasa*; Hase, Yoshihiro; Tanaka, Atsushi; Ishizaka, Hiroshi*

no journal, , 

no abstracts in English

21 (Records 1-20 displayed on this page)