Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Takashi Toyofuku"'
Autor:
Laurie M. Charrieau, Yukiko Nagai, Katsunori Kimoto, Delphine Dissard, Beatrice Below, Kazuhiko Fujita, Takashi Toyofuku
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract Large Benthic Foraminifera are a crucial component of coral-reef ecosystems, which are currently threatened by ocean acidification. We conducted culture experiments to evaluate the impact of low pH on survival and test dissolution of the sym
Externí odkaz:
https://doaj.org/article/a1e132e0f7164ecb915325efa1b29942
Autor:
Rina Fujimaki, Noritoshi Suzuki, Katsunori Kimoto, Yukiko Nagai, Yuya Oaki, Shinji Shimode, Takashi Toyofuku, Hiroaki Imai
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract We clarified the specific micrometric arrangement and nanometric structure of the radiolarian crystalline spines that are not a simple single crystal. A body of the celestite (SrSO4) skeleton of acantharian Acanthometra cf. multispina (Acant
Externí odkaz:
https://doaj.org/article/1d5058111cc944619a33d77a773e7552
Autor:
Yoshihiro Fujiwara, Masaru Kawato, Jan Yde Poulsen, Hitoshi Ida, Yoshito Chikaraishi, Naohiko Ohkouchi, Kazumasa Oguri, Shinpei Gotoh, Genki Ozawa, Sho Tanaka, Masaki Miya, Tetsuya Sado, Katsunori Kimoto, Takashi Toyofuku, Shinji Tsuchida
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-16 (2021)
Abstract A novel species of the family Alepocephalidae (slickheads), Narcetes shonanmaruae, is described based on four specimens collected at depths greater than 2171 m in Suruga Bay, Japan. Compared to other alepocephalids, this species is colossal
Externí odkaz:
https://doaj.org/article/225ba43f6d3747bb9dcf7db4d731ddb5
Autor:
Hodaka Kawahata, Kazuhiko Fujita, Akira Iguchi, Mayuri Inoue, Shinya Iwasaki, Azumi Kuroyanagi, Ayumi Maeda, Takuya Manaka, Kazuyoshi Moriya, Haruka Takagi, Takashi Toyofuku, Toshihiro Yoshimura, Atsushi Suzuki
Publikováno v:
Progress in Earth and Planetary Science, Vol 6, Iss 1, Pp 1-37 (2019)
Abstract The CO2 concentration of air has increased over the last two centuries and recently surpassed 400 ppm. Carbon cycle models project CO2 concentrations of 720 to 1000 ppm for the IPCC intermediate scenario (RCP 6.0), resulting in an increase i
Externí odkaz:
https://doaj.org/article/ba6bf9df76cb4623860c9b419c6b793c
Autor:
Jacob R. Carley, Michael Matthews, Matthew T. Morris, Manuel S. F. V. De Pondeca, Jenny Colavito, Runhua Yang, Takashi Toyofuku
Publikováno v:
Experimental Results, Vol 2 (2021)
The Real Time Mesoscale Analysis (RTMA), a two-dimensional variational analysis algorithm, is used to provide hourly analyses of surface sensible weather elements for situational awareness at spatial resolutions of 3 km over Alaska. In this work we f
Externí odkaz:
https://doaj.org/article/72cdd7dc16be4f348c4d37dc8b15f57a
Autor:
Masashi Tsuchiya, Seiji Miyawaki, Kazumasa Oguri, Takashi Toyofuku, Akihiro Tame, Katsuyuki Uematsu, Koji Takeda, Yuya Sakai, Hiroshi Miyake, Tadashi Maruyama
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Kleptoplasty or acquisition of chloroplasts from ingested photosynthetic organisms, is thought to be a key factor in determining the trophic requirements and carbon mineralization of foraminifera, consequently influencing their ecology, evolution, an
Externí odkaz:
https://doaj.org/article/c703c66da0db428192d65bea8313d3ee
Autor:
S. Shepperd, A. Thomson, D. Beaumont, T. Misselbrook, H. Jones, C. Reynolds, M. Lukac, Takashi Toyofuku
Publikováno v:
Experimental Results, Vol 1 (2020)
Agricultural intensification within forage systems has reduced grassland floral diversity by promoting ryegrass (Lolium spp.), damaging soil functionality which underpins critical ecosystem services. Diverse forage mixtures may enhance environmental
Externí odkaz:
https://doaj.org/article/97d9b5000a5f4f7599783132e10a224a
Autor:
Takashi Toyofuku, Miki Y. Matsuo, Lennart Jan de Nooijer, Yukiko Nagai, Sachiko Kawada, Kazuhiko Fujita, Gert-Jan Reichart, Hidetaka Nomaki, Masashi Tsuchiya, Hide Sakaguchi, Hiroshi Kitazato
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
Despite their role in oceanic CaCO3production, the physiological processes responsible for calcification in foraminifera are poorly understood Here, the authors show that calcification is driven by rapid transformation of bicarbonate to carbonate ins
Externí odkaz:
https://doaj.org/article/95aeec193e674055a5ece57219ba9193
Publikováno v:
Frontiers in Marine Science, Vol 5 (2018)
The elemental composition of calcite is of critical value in paleoceanographic reconstructions, yet little is known about biological processes underlying elemental uptake by foraminifers during calcification. Especially crucial in the understanding o
Externí odkaz:
https://doaj.org/article/6c5a6721cfaa4a7f847bede30794329a
Autor:
Yuki Suemitsu, Ryuji Matsunaga, Takashi Toyofuku, Yasunori Yamada, Masahiro Mikuriya, Tadashi Tokii, Masayuki Koikawa
Publikováno v:
Magnetochemistry, Vol 5, Iss 1, p 14 (2019)
Tetranuclear hetero-metal MnIII2NiII2 complexes, [Mn2Ni2(L)4(OAc)2] (1) and [Mn2Ni2(L)4(NO3)2] (2) [H2L = N-(2-hydroxymethylphenyl)-5,6-benzosalicylideneimine], have been synthesized and characterized by X-ray crystal structure analyses, infrared spe
Externí odkaz:
https://doaj.org/article/bdc8bb1f49a34deb8ad8ccfe7a304fd1