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Your search keyword '"Satoh-Nagasawa, Namiko"' showing total 24 results
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24 results on '"Satoh-Nagasawa, Namiko"'

10. A trehalose metabolic enzyme controls inflorescence architecture in maize

Author

Satoh-Nagasawa, Namiko, Nagasawa, Nobuhiro, Malcomber, Simon, Sakai, Hajime, and Jackson, David

Subjects
Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Author(s): Namiko Satoh-Nagasawa [1]; Nobuhiro Nagasawa [2]; Simon Malcomber [3, 4]; Hajime Sakai [2]; David Jackson (corresponding author) [1] Inflorescence branching is a major yield trait in crop plants controlled [...]

Published
2006
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14. Genetic Analysis of Cadmium Accumulation in Shoots of Sorghum Landraces

Author

Tsuboi, Kana, primary, Shehzad, Tariq, additional, Yoneda, Junichi, additional, Uraguchi, Shimpei, additional, Ito, Yusuke, additional, Shinsei, Lin, additional, Morita, Shoji, additional, Rai, Hiroki, additional, Nagasawa, Nobuhiro, additional, Asari, Keiko, additional, Suzuki, Hiroko, additional, Itoh, Rumiko, additional, Saito, Tomoko, additional, Suzuki, Katsura, additional, Takano, Izumi, additional, Takahashi, Hidekazu, additional, Sakurai, Kenji, additional, Watanabe, Akio, additional, Akagi, Hiromori, additional, Tokunaga, Tsuyoshi, additional, Itoh, Masashi, additional, Hattori, Hiroyuki, additional, Fujiwara, Toru, additional, Okuno, Kazutoshi, additional, Tsutsumi, Nobuhiro, additional, and Satoh-Nagasawa, Namiko, additional

Published
2016
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19. Genetic Analysis of Cadmium Accumulation in Shoots of Sorghum Landraces

Author

Tsuboi, Kana, Shehzad, Tariq, Yoneda, Junichi, Uraguchi, Shimpei, Ito, Yusuke, Shinsei, Lin, Morita, Shoji, Rai, Hiroki, Nagasawa, Nobuhiro, Asari, Keiko, Suzuki, Hiroko, Itoh, Rumiko, Saito, Tomoko, Suzuki, Katsura, Takano, Izumi, Takahashi, Hidekazu, Sakurai, Kenji, Watanabe, Akio, Akagi, Hiromori, Tokunaga, Tsuyoshi, Itoh, Masashi, Hattori, Hiroyuki, Fujiwara, Toru, Okuno, Kazutoshi, Tsutsumi, Nobuhiro, and Satoh-Nagasawa, Namiko

Abstract

Contamination of agricultural fields with heavy metals, such as Cd, is a serious issue for safe food production worldwide. Previous reports indicate that sorghum [Sorghum bicolor(L.) Moench] is useful for phytoextraction of Cd from contaminated soils. To investigate the diversity for Cd accumulation in sorghum germplasm and to select useful cultivars for phytoextraction, we conducted experiments using 106 sorghum landraces and the cultivar BTx623, grown in hydroponic cultures and under field conditions. The Cd concentrations in plant shoots of different landraces showed no correlation between hydroponic and field-grown plants (r= -0.16). We measured Cd concentrations in various plant parts at different stages of development in field-grown plants and found that leaf sheaths often had higher Cd concentrations than other plant parts. Our results indicated that screening could be done for plants that might be useful for phytoextraction of Cd by determining the Cd concentrations in leaf sheaths of 1-mo-old plants grown in a Cd-contaminated soil. We also mapped the quantitative trait loci (QTLs) responsible for Cd accumulation in sorghum shoots and found several chromosomal regions that affected Cd concentrations in different parts of the shoot. We were able to identify several promising landraces for developing sorghum cultivars that are capable of accumulating high levels of Cd and phytoextracting Cd from contaminated soils.

Published
2017
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21. OsHMA3, a P1B‐type of ATPase affects root‐to‐shoot cadmium translocation in rice by mediating efflux into vacuoles

Author

Miyadate, Hidenori, primary, Adachi, Saki, additional, Hiraizumi, Aya, additional, Tezuka, Kouichi, additional, Nakazawa, Nobushige, additional, Kawamoto, Tomohiko, additional, Katou, Kazunao, additional, Kodama, Ikuko, additional, Sakurai, Kenji, additional, Takahashi, Hidekazu, additional, Satoh‐Nagasawa, Namiko, additional, Watanabe, Akio, additional, Fujimura, Tatsuhito, additional, and Akagi, Hiromori, additional

Published
2010
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22. A single recessive gene controls cadmium translocation in the cadmium hyperaccumulating rice cultivar Cho-Ko-Koku

Author

Tezuka, Kouichi, primary, Miyadate, Hidenori, additional, Katou, Kazunao, additional, Kodama, Ikuko, additional, Matsumoto, Shinichi, additional, Kawamoto, Tomohiko, additional, Masaki, Satoshi, additional, Satoh, Hideki, additional, Yamaguchi, Masayuki, additional, Sakurai, Kenji, additional, Takahashi, Hidekazu, additional, Satoh-Nagasawa, Namiko, additional, Watanabe, Akio, additional, Fujimura, Tatsuhito, additional, and Akagi, Hiromori, additional

Published
2009
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23. OsHMA3, a P.

Author

Miyadate, Hidenori, Adachi, Saki, Hiraizumi, Aya, Tezuka, Kouichi, Nakazawa, Nobushige, Kawamoto, Tomohiko, Katou, Kazunao, Kodama, Ikuko, Sakurai, Kenji, Takahashi, Hidekazu, Satoh-Nagasawa, Namiko, Watanabe, Akio, Fujimura, Tatsuhito, and Akagi, Hiromori

Subjects
EFFECT of cadmium on plants, PLANT roots, PLANT shoots, PLANT genetics, RICE
Abstract

The cadmium (Cd) over-accumulating rice (Oryza sativa) cv Cho-Ko-Koku was previously shown to have an enhanced rate of root-to-shoot Cd translocation. This trait is controlled by a single recessive allele located at qCdT7. In this study, using positional cloning and transgenic strategies, heavy metal ATPase 3 (OsHMA3) was identified as the gene that controls root-to-shoot Cd translocation rates. The subcellular localization and Cd-transporting activity of the gene products were also investigated. The allele of OsHMA3 that confers high root-to-shoot Cd translocation rates (OsHMA3mc) encodes a defective P1B-ATPase transporter. OsHMA3 fused to green fluorescent protein was localized to vacuolar membranes in plants and yeast. An OsHMA3 transgene complemented Cd sensitivity in a yeast mutant that lacks the ability to transport Cd into vacuoles. By contrast, OsHMA3mc did not complement the Cd sensitivity of this yeast mutant, indicating that the OsHMA3mc transport function was lost. We propose that the root cell cytoplasm of Cd-overaccumulating rice plants has more Cd available for loading into the xylem as a result of the lack of OsHMA3- mediated transportation of Cd to the vacuoles. This defect results in Cd translocation to the shoots in higher concentrations. These data demonstrate the importance of vacuolar sequestration for Cd accumulation in rice. [ABSTRACT FROM AUTHOR]

Published
2011
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24. OsHMA3, a P1B-type of ATPase affects root-to-shoot cadmium translocation in rice by mediating efflux into vacuoles.

Author

Miyadate H, Adachi S, Hiraizumi A, Tezuka K, Nakazawa N, Kawamoto T, Katou K, Kodama I, Sakurai K, Takahashi H, Satoh-Nagasawa N, Watanabe A, Fujimura T, and Akagi H

Subjects
Adenosine Triphosphatases analysis, Adenosine Triphosphatases genetics, Amino Acid Sequence, Chromosome Mapping, Chromosomes, Plant, Cloning, Molecular, Molecular Sequence Data, Oryza genetics, Oryza metabolism, Plant Roots metabolism, Plant Shoots metabolism, Plants, Genetically Modified metabolism, Quantitative Trait Loci, Saccharomyces cerevisiae genetics, Sequence Alignment, Vacuoles metabolism, Adenosine Triphosphatases physiology, Cadmium metabolism, Oryza enzymology
Abstract

• The cadmium (Cd) over-accumulating rice (Oryza sativa) cv Cho-Ko-Koku was previously shown to have an enhanced rate of root-to-shoot Cd translocation. This trait is controlled by a single recessive allele located at qCdT7. • In this study, using positional cloning and transgenic strategies, heavy metal ATPase 3 (OsHMA3) was identified as the gene that controls root-to-shoot Cd translocation rates. The subcellular localization and Cd-transporting activity of the gene products were also investigated. • The allele of OsHMA3 that confers high root-to-shoot Cd translocation rates (OsHMA3mc) encodes a defective P(1B) -ATPase transporter. OsHMA3 fused to green fluorescent protein was localized to vacuolar membranes in plants and yeast. An OsHMA3 transgene complemented Cd sensitivity in a yeast mutant that lacks the ability to transport Cd into vacuoles. By contrast, OsHMA3mc did not complement the Cd sensitivity of this yeast mutant, indicating that the OsHMA3mc transport function was lost. • We propose that the root cell cytoplasm of Cd-overaccumulating rice plants has more Cd available for loading into the xylem as a result of the lack of OsHMA3-mediated transportation of Cd to the vacuoles. This defect results in Cd translocation to the shoots in higher concentrations. These data demonstrate the importance of vacuolar sequestration for Cd accumulation in rice., (© The Authors (2010). Journal compilation © New Phytologist Trust (2010).)

Published
2011
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