岩科 司 Tsukasa Iwashina

論文

  • Murai, Y., G. Kokubugata, M. Yokota, J. Kitajima & T. Iwashina, 2008. Flavonoids from two Lysionotus species (Gesneriaceae) in East Asia. Polyphenols Communications 2008, Vol. 1, pp. 221-222.
  • Iwashina, T., M. Hashimoto & S. Matsumoto, 2008. Flavonol glycosides from yellow Clematis cultivars as flower pigments. Polyphenols Communications 2008, Vol. 1, pp. 169-170.
  • Iwashina, T., S. Matsumoto, T. Nakamura, G. Kokubugata, M. Suleiman & I.M. Said, 2008. New flavonoid chemotypes from Asplenium normale (Aspleniaceae) in Malaysia. Mem. Natl. Mus. Nat. Sci., Tokyo, 45: 111-119.
  • Iwashina, T. & Y. Murai, 2008. Quantitative variation of anthocyanins and other flavonoids in autumn leaves of Acer palmatum. Bull. Natul. Mus. Nat. Sci., Ser. B, 34: 53-62.
  • Hashimoto, M., T. Iwashina & S. Matsumoto, 2008. Flower color and flavonoid variation in Clematis patens (Ranunculaceae). Bull. Natl. Mus. Nat. Sci., Ser. B, 34: 43-51.
  • Iwashina, T., J.A. Lopez-Saez & J. Kitajima, 2007. Flavonoids from Osyris alba. Biochem. Syst. Ecol., 36: 146-147.
  • Takemura, T., Y. Takatsu, M. Kasumi, W. Marubashi & T. Iwashina, 2007. Anthocyanins of Gladiolus cultivars and their contribution to flower colors. J. Japan. Soc. Hort. Sci., 77: 80-87.
  • Kusano, K., T. Iwashina, J. Kitajima & T. Mishio, 2007. Flavonoid diversity of Saussurea and Serratula species in Tien Shan Mountains. Nat. Prod. Commun., 2: 1121-1128.
  • Yamazaki, K, T. Iwashina, J. Kitajima, Y. Gamou, A. Yoshida & T. Tannowa, 2007. External and internal flavonoids from Madagascarian Uncarina species (Pedaliaceae). Biochem. Syst. Ecol., 35: 743-749.
  • Iwashina, T., S.M. Githiri, E.R. Benitez, T. Takemura, J. Kitajima & R. Takahashi, 2007. Analysis of flavonoids in flower petals of soybean near-isogenic lines for flower and pubescence color genes. J. Heredity, 98: 250-257.
  • Takahashi, R., S.M. Githiri, K. Hatayama, E.G. Dubouzet, N. Shimada, T. Aoki, S. Ayabe, T. Iwashina, K. Toda & H. Matsumura, 2007. A singlw-base deletion in soybean flavonol synthase gene in associated with magenta flower color. Plant Mol. Biol., 63: 125-135.
  • Iwashina, T., 2006. Flavonols from the aerial parts of two Aztekium and three Ariocarpus species (Cactaceae). Ann. Tsukuba Bot. Gard., 25: 17-23.
  • Iwashina, T., E.R. Benitez & R. Takahashi, 2006. Analysis of flavonoids in pubescence of soybean near-isogenic lines for pubescence color loci. J. Heredity, 97: 438-443.
  • Hashiba, K., T. Iwashina & S. Matsumoto, 2006. Variation in the quality and quantity of flavonoids in the leaves of coastal and inland Campanula punctata. Biochem. Syst. Ecol., 34: 854-861.
  • Tomita-Yokotani, K., K. Hiraishi, M. Wei, M. Aihara, M. Araie & T. Iwashina, 2006. Structure - activity - relationships of flavonoids using three kinds of assays, fungi, plants and animal cells. Polyphenols Communications 2006, pp. 565.
  • Takemura, T., Y. Takatsu, M. Kasumi, W. Marubashi & T. Iwashina, 2006. Flavonoids in the flowers of Gladiolus cultivars. Polyphenols Communications 2006, pp. 257-258.
  • Takemura, S., S. Ayabe & T. Iwashina, 2006. Flavonoid glycosides in the bracts of Davidia involucrata as UV shields. Polyphenols Communications 2006, pp. 255-256.
  • Mishio, T., K. Takeda & T. Iwashina, 2006. Flavonoids from Centaurea species (Asteraceae) as flower pigments. Polyphenols Communications 2006, pp. 209-210.
  • Iwashina, T., T. Takemura & T. Mishio, 2006. Chalcone and flavonol glycosides from the flowers and leaves of Corylopsis species. Polyphenols Communications 2006, pp. 99-100.
  • Iwashina, T. & S. Matsumoto, 2006. Chemotaxonomic implication among three Heterotropa muramatsui varieties (Aristolochiaceae) in Izu Peninsula using flavonoid compounds. Mem. Natn. Sci. Mus., Tokyo, 42: 67-73.
  • Saito, Y., M. Moller, G. Kokubugata, T. Katsuyama, W. Marubashi & T. Iwashina, 2006. Molecular evidence for repeated hybridization events involved in the origin of the genus xCrepidiastrixeris (Asteraceae) using RAPDs and ITS data. Bot. J. Linn. Soc., 151: 333-343.
  • Iwashina, T. & H. Tobe, 2006. Flavonoids from the leaves of Hydrastis (Hydrastidaceae): the phytochemical comparison with Glaucidium. Bull. Natn. Sci. Mus., Tokyo, Ser. B, 32: 29-33.
  • Mishio, T., T. Honma & T. Iwashina, 2006. Yellow flavonoids in Centaurea ruthenica as flower pigments. Biochem. Syst. Ecol., 34: 180-184.
  • Iwashina, T., J. Kitajima & S. Matsumoto, 2006. Flavonoids in the species of Cyrtomium (Dryopteridaceae) and related genera. Biochem. Syst. Ecol., 34: 14-24.
  • 加藤信行・吉玉国二郎・岩科 司, 2005. 虫えいの組織学的観察およびアントシアニン組成の調査. 筑波実験植物園研報, 24: 53-62.
  • Hashiba, K., T. Iwashina & S. Matsumoto, 2005. Variation in the quality and quantity of flavonoids in the leaves of coastal and inland populations of Adenophora triphylla var. japonica. Ann. Tsukuba Bot. Gard., 24: 43-52.
  • Iwashina, T. & S. Matsumoto, 2005. Flavonoid variation in fronds of Cyrtomium falcatum complex. Ann. Tsukuba Bot. Gard., 24: 27-41.
  • Takemura, T., Y. Takatsu, M. Kasumi, W. Marubashi & T. Iwashina, 2005. Flavonoids and their distribution patterns in the flowers of Gladiolus cultivars. Acta Holticulturae, 673: 487-493.
  • Iwashina, T., J. Kitajima, T. Shiuchi & Y. Itou, 2005. Chalcones and other flavonoids from Asarum sensu lato (Aristolochiaceae). Biochem. Syst. Ecol., 33: 571-584.
  • Iwashina, T., J. Kitajima, T. Kato & H. Tobe, 2005. An analysis of flavonoid compounds in leaves of Japonolirion (petrosaviaceae). J. Plant Res., 118: 31-36.
  • Parvez, M.M., K. Tomita-Yokotani, Y. Fujii, T. Konishi & T. Iwashina, 2004. Effects of quercetin and its seven derivatives on the growth of Arabidopsis thaliana and Neurospora crassa. Biochem. Syst. Ecol., 32: 631-635.
  • Iwashina, T., Y. Omori, J. Kitajima, S. Akiyama, T. Suzuki & H. Ohba, 2004. Flavonoids in translucent bracts of the Himalayan Rheum nobile (Polygonaceae) as ultraviolet shields. J. Plant Res., 117: 101-107.
  • Yoshida, H., Y. Itoh, Y. Ozeki, T. Iwashina & M. Yamaguchi, 2004. Variation in chalcononaringenin 2'-O-glucoside content in the petals of carnations (Dianthus caryophyllus) bearing yellow flowers. Scientia Horticalturae, 99: 175-186.
  • Saito, Y., G. Kokubugata, T. Katsuyama, W. Marubashi & T. Iwashina, 2003. Cytological comparisons of somatic chromosomes in xCrepidiastrixeris denticulato-platyphylla and speculation of its parental species (Asteraceae). Chromosome Sci., 7: 43-48.
  • Iwashina, T., 2003. Flavonoid function and activity to plants and other organisms. Biol. Sci. Space, 17: 24-44.
  • Matsumoto, S., T. Iwashina, J. Kitajima & S. Mitsuta, 2003. Evidence by flavonoid markers of four natural hybrids among Asplenium normale and related species (Aspleniaceae) in Japan. Biochem. Syst. Ecol., 31: 51-58.
  • Ebihara, A., S. Matsumoto, T. Iwashina, K. Sugimura & K. Iwatsuki, 2002. Hymenophyllaceae (Pteridophytes) of Vanuatu. Ann. Tsukuba Bot. Gard., 21: 61-72.
  • Matsumoto, S., T. Iwashina, K. Sugimura & N. Tanaka, 2002. A list of pteridophytes herbarium specimens (without Hymenophyllaceae) from Vanuatu, collected in 2000 and 2001. Ann. Tsukuba Bot. Gard., 21: 37-60.
  • Hashimoto, T., K. Sugimura, N. Tanaka, G. Kokubugata, T. Konishi, S. Chanel & T. Iwashina, 2002. A list of herbarium specimens (Angiosperms) from Vanuatu, collected in 2000 and 2001. Ann. Tsukuba Bot. Gard., 21: 1-23.
  • Iwashina, T., W. Marubashi & T. Suzuki, 2002. Chalcone and flavonols from the Chinese species, Saruma henryi (Aristolochiaceae). Biochem. Syst. Ecol., 30: 1101-1103.
  • Kondo, K., S. Ichiishi, H. Kajita, T. Iwashina, R. Suzuki, Y. Kondo & T. Nagamitsu, 2002. Open-closure trap system modeled in tissue-cultured Dionaea muscipula controled by certain chemical substances in culture media. Proc. 4th Intern. Carnivorous Plant Conf., p.91-96.
  • 岩科 司, 2001. ベタレイン色素を合成する植物の科におけるフラボノイドとその分布(総説). 筑波実験植物園研報, 20: 11-74.
  • Iwashina, T., F. Konta & J. Kitajima, 2001. Anthocyanins and flavonols of Chimonanthus praecox (Calycanthaceae) as flower pigments. J. Jap. Bot., 76: 166-172.
  • Iwashina, T. & J. Kitajima, 2000. Chalcone and flavonol glycosides from Asarum canadense (Aristolochiaceae). Phytochemistry, 55: 971-974.
  • Iwashina, T., 2000. The structure and distriution of the flavonoids in plants. J. Plant Res., 113: 287-299.
  • Yabuya, T., M. Saito, T. Iwashina & M. Yamaguchi, 2000. Stability of flower colors due to anthocyanin - flavone copigmentation in Japanese garden iris, Iris ensata Thunb. Euphitica, 115: 1-5.
  • Iwashina, T., J.A. Lopez-Saez, A. Herrero, J. Kitajima & S. Matsumoto, 2000. Flavonol glycosides fromAsplenium foreziense and its five related taxa and A. incisum. Biochem. Syst. Ecol., 28: 665-671.
  • 岩科 司, 2000. 高速液体クロマトグラフィーによる秋の紅葉のアントシアニン色素の検出とその分布. 日本植物園協会誌, 34: 70-90.