Isolation and characterization of the fragrant cyclamen -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

Red-purple flower due to delphinidin 3,5-diglucosides, a novel pigment for 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

Fragrant cyclamen cultivar ( ), 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 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.

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 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.

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"( )

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

Analyses of flower pigments and volatile compounds of white mutants generated by ion beam irradiation from fragrant purple cyclamen "Kokou-no-kaori"( )

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

Floral scent components in a white mutant generated from fragrant purple cyclamen "Kokou-no-kaori" ( ) 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

Analysis of flower pigment of mutants generated from fragrant purple cyclamen "Kaori-no-mai" ( ) 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

Induction of mutants from fragrant cyclamen "Uruwashi-no-kaori" ( ) 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

Three-dimensional electrical resistivity structure beneath the back-arc side of the southern Tohoku region

Usui, Yoshiya*; Ueshima, Makoto*; Hase, Hideaki*; Ichihara, Hiroshi*; Aizawa, Koki*; Koyama, Takao*; Sakanaka, Shinya*; Ogawa, Tsutomu*; Yamaya, Yusuke*; Nishitani, Tadashi*; et al.

no journal, , 

In the back-arc area of the southern Tohoku region, there are several quaternary volcanos and active faults that have the potential to cause M7-class inland earthquakes. In the vicinity of some of the volcanoes, deep low-frequency earthquakes occur, implying the transfer of melt or aqueous fluid. So as to reveal the magma supply system around the area, it is important to reveal the distribution of the subsurface fluid. Also, understanding the fluid distribution helps elucidate the earthquake generation process. To delineate the subsurface electrical resistivity structure, the authors estimated the resistivity structure in the area by performing magnetotelluric surveys and generating the 3-D resistivity structure model with high resolution. In this study, the authors show the resultant electrical resistivity structure and discuss the subsurface fluid distribution as well as its relationship with the volcanic and seismic activities around the study area.