領域名 園芸科学
教員氏名 鳴海 貴子
研究分野 花き園芸学
研究キーワード：花き，花弁表皮細胞，花の形態形成，花成
最近の研究課題
1.トレニアの花弁表皮細胞形態制御に関わる遺伝子の解析
花の色は，色素による色彩に加え質感（花弁表皮細胞の形態）によっても決定されている．花色素成分の分析や花色に関わる遺伝子について研究が盛んに行われている一方で，花弁表皮細胞の形態制御に関わる遺伝子について研究が殆んど行われていない．本研究室では，花弁表皮細胞の形態制御による新規花色パターンを持つ花きの開発を目指している．これまで，花き園芸分野のモデル植物であるトレニアから3種類の花弁表皮細胞関連転写因子遺伝子を単離しており，転写因子の機能解析として効率の良いCRES-T法や遺伝子発現解析などを通して機能解析を進めている．
2.温度が花成へ及ぼす影響
近年の夏秋期の高温により，キクやマーガレットにおいて苗の活着の不良，花成遅延が問題になっており，これまでのような出荷時期に合わせた栽培が難しくなっている．本研究室では，キクの花成機構の解明とともに，香川県を代表する花きであるマーガレットの花成機構の解明および温度がマーガレット花成に及ぼす影響を調査している
3.その他
花の相称性制御機構の解明や花色変異機構の解明などを行っている。
代表的な研究業績
Narumi, T. et al. (2007) Chimeric AGAMOUS repressor induces serrated petal phenotype in Torenia Fournieri similar to that induced by cytokinin application. Plant Biotechnology, 25: 45-54.
Narumi, T. et al. (2011) Arabidopsis chimeric TCP3 repressor produces novel floral traits in Torenia fournieri and Chrysanthemum morifolium, Plant Biotechnology, 28: 131-140.
Sasaki, K. et al. (2011) Utilization of a floral organ-expressing AP1 promoter for generation of new floral traits in Torenia fournieri Lind, Plant Biotechnology, 28: 181-188.
Oda, A. et al. (2012) CsFTL3, a chrysanthemum FLOWERING LOCUS T-like gene, is a key regulator of photoperiodic flowering in chrysanthemums. J. Exp. Bot. 63: 1461-1477.
Higuchi,Y. et al. (2013) The gated induction system of a systemic floral inhibitor, antiflorigen, determines obligate short-day flowering in chrysanthemums PNAS 110, 17137–17142,
Research Area: Horticultural Science
Research Specialization: Floriculture
Name: NARUMi, Takako
Keywords：ornamental plant，petal epidermal cell, floral morphogenesis,
flowering
Recent Research
1.Identification of novel petal epidermal cell-related gene
Flower color is determined not only pigments but also the shape of petal epidermal cells, which influence the tone and texture of petals owing to the different reflection and refraction of light. We revealed that the known petal epidermal cell-related genes are not main factor though those have been identified in snapdragon and torenia. Therefore, we have performed identification of novel petal epidermal cell-related gene by RNA-seq analysis of torenia.
2.The effects of temperature on flowering
The recent high temperature during the summer and fall months has known to cause flowering delay in marguerite. We study about flowering characteristics in marguerite of a specialty of Kagawa Prefecture through flowering response by light or temperature control and flowering-related gene analysis.
3.The others
・Elucidation of regulation mechanisms of floral zygomorphy in torenia
・Molecular mechanisms of flower color mutation derived from bud mutation
of carnation
Publications
Narumi, T. et al. (2007) Chimeric AGAMOUS repressor induces serrated petal phenotype in Torenia Fournieri
similar to that induced by cytokinin application. Plant Biotechnology, 25: 45-54.
Narumi, T. et al. (2011) Arabidopsis chimeric TCP3 repressor produces novel floral traits in Torenia fournieri and
Chrysanthemum morifolium, Plant Biotechnology, 28: 131-140.
Sasaki, K. et al. (2011) Utilization of a floral organ-expressing AP1 promoter for generation of new floral traits in
Torenia fournieri Lind, Plant Biotechnology, 28: 181-188.
Oda, A. et al. (2012) CsFTL3, a chrysanthemum FLOWERING LOCUS T-like gene, is a key regulator of
photoperiodic flowering in chrysanthemums. J. Exp. Bot. 63: 1461-1477.
Higuchi,Y. et al. (2013) The gated induction system of a systemic floral inhibitor, antiflorigen, determines obligate
short-day flowering in chrysanthemums PNAS 110, 17137–17142,
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