Nobutaka Takahashi

Research Field

Abstract A thermochromic complex which gives out rose fragrance with the color change, and inclusion complexes which emit intense solid state fluorescence, were obtained by grinding of imidazole derivatives with 2-phenylethanol and carboxylic acid. Preparation and properties of these complexes are described.

Imidazole

Thermochromism

10.1080/00268949008036037

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Metabolism of Gibberellins in Cell-Free Extracts of Anthers from Normal and Dwarf Rice

Plant and Cell Physiology (1990)

Masatomo Kobayashi Yuji Kamiya Akira Sakurai Hitoshi SAKA Nobutaka Takahashi

Cell-free extracts were prepared from anthers of normal and dwarf rice (Oryza sativa L.), and the metabolism of radioisotope-labeled gibberellins in the extracts was analyzed by HPLC and gas chromatography-mass spectrometry (GC/MS). GA12 was converted to GA15 and GA34 in the extracts. GA20 was converted to GA1, GA8 and GA29, but GA9 was converted only to GA34. The extracts of the dwarf cultivar, Waito-C (dy mutant), showed the same 3β-hydroxylation activity as did those of the normal cultivar, Nihonbare, indicating that the dy gene is not expressed in the anthers. These results suggest that the regulation of the biosynthesis of gibberellins in rice is organ-specific.

Hydroxylation

10.1093/oxfordjournals.pcp.a077905

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Citations (23)

GFP expression in PCs and putative interneurons after grafting hfMSCs carrying the inverted GFP gene to the SCA1 mouse cerebellum.

Huda Fathul Yiping Fan Suzuki Mamiko Ayumu Konno Yasunori Matsuzaki

10.1371/journal.pone.0164202.g003

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In vitro and in vivo effects of differanisole A on some tumor cells.

The Journal of Antibiotics (1986)

Tetsuro Suzuki Hirofumi Oka Akira Okura Ken‐ichi Asahi Nobutaka Takahashi

10.7164/antibiotics.39.869

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Effects of Gibberellins and Their Methyl Esters on Dark Germination and Antheridium Formation in <italic>Lygodium japonicum</italic> and <italic>Anemia phyllitidis</italic>

Plant and Cell Physiology (1987)

Michizo Sugai Kazuhiro Nakamura Hisakazu Yamane Yoshio Satō Nobutaka Takahashi

The effects of GA3, GA4 and GA9 and their methyl esters on dark spore germination and antheridium formation of the ferns Lygodium japonicum and Anemia phyllitidis were investigated. Although all induced both germination and antheridium formation in Lygodium, only the gibberellins induced these effects inAnemia.

Antheridium

10.1093/oxfordjournals.pcp.a077276

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Chemistry of Plant Hormones

Routledge eBooks (2018)

Nobutaka Takahashi

10.1201/9781315139241

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Citations (94)

CCDC 1481196: Experimental Crystal Structure Determination

The Cambridge Structural Database (2016)

Shin‐ichiro Kato Satoshi Kuwako Nobutaka Takahashi Tomokazu Kijima Yosuke Nakamura

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc1lq9j4

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Isolation and physical properties of new piericidins produced by Streptomyces pactum.

Agricultural and Biological Chemistry (1977)

Shigeo Yoshida Koichi Yoneyama S. SHIRAISHI Akio Watanabe Nobutaka Takahashi

During the screening of metabolites of microorganisms for new insecticides, many piericidin-like substances were found in the mycelial extract of Streptomyces pactum. The isolation and physical properties of these piericidins are described.

Isolation

10.1271/bbb1961.41.849

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Citations (24)

Structure-activity Relationship in Piericidins Inhibitors on the Electron Transport System in Mitochondria

Agricultural and Biological Chemistry (1980)

Shigeo Yoshida Yūichirō Nagao Akio Watanabe Nobutaka Takahashi

The study describes the inhibitory activity of natural piericidins and related compounds, including synthetic analogues, to the electron transport system of mitochondria. Consideration of the structure-activity relationships led to the proposing of a structural unit I that was essential to inhibitory activity.

Structure–activity relationship

10.1080/00021369.1980.10864438

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5,7-Dodecadien-1-ol: Candidate for the sex pheromone of the pine moth.

Agricultural and Biological Chemistry (1979)

Manh Huynh Vu Tetsu Ando Shigeo Yoshida Nobutaka Takahashi Sadahiro Tatsuki

10.1271/bbb1961.43.1615

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Citations (1)