J-GLOBAL         Last updated: Mar 1, 2018 at 13:34
Kochi University
Research and Education Faculty, Multidisciplinary Science Cluster Kuroshio Science Unit
Job title
Doctor (Science)(Hokkaido University)

Research Interests


Research Areas


Academic & Professional Experience

Professor, Faculty of Science, Kochi University
- Professor, Graduate School of Kuroshio Science, Kochi University
Associate Professor, Faculty of Science, Kochi University
Research Associate, Faculty of Science, Kochi University


Graduate School, Division of Natural Science, Hokkaido University
Faculty of Science, Kobe University

Committee Memberships

Japanese Society of Phycology  Excutive Council Member: 1997-2000, 2003-2006; Associate Editor: 1997-2002; Editor-in-Chief: 2003-2006
The Botanical Society of Japan  Excutive Council Member: 1999-2002, 2005-

Awards & Honors

Sep 2015
Hirase Award, The Japanese Society of Plant Morphology

Published Papers

Takahiro Taguchi, Takahiro Taguchi, Satoshi Kubota, Erika Tagami, Takuma Mezaki, Satoko Sekida, Kazuo Okuda, Akira Tominaga, Akira Tominaga
Cytologia   82 205-212   Jan 2017
© 2017 The Japan Mendel Society. A molecular cytogenetic analysis was conducted on the scleractinian coral Platygyra contorta, which is commonly found along temperate coasts in Japan. P. contorta was karyotyped (2n=28) by conventional G- and C-ban...
Recent progress of molecular cytogenetic study on scleractinian (stony) corals.
Taguchi T, Tagami E, Mezaki T, Sekida S, Chou Y, Soong K, Okuda K, Tominaga A, Kubota S
Kuroshio Science   11(1) 73-81   2017   [Refereed]
Camaya Alex Pulvinar, Sekida Satoko, Okuda Kazuo
CYTOLOGIA   81(4) 465-470   Dec 2016   [Refereed]
Kazuo Okuda, Satoko Sekida, Ami Hasebe, Misa Iwabuchi, Mitsunobu Kamiya, Tasuku Hishinuma
Phycological Research   64 219-229   Oct 2016
© 2016 Japanese Society of Phycology The detailed segregative cell division (SCD) processes and changes in the arrangement of cortical microtubules and actin filaments were examined in two species of Struvea. SCD was initiated by the appearance of...
Sekida S, Iwasaki N, Okuda K
Zoological science   33(3) 320-336   Jun 2016   [Refereed]
Fu G, Nagasato C, Yamagishi T, Kawai H, Okuda K, Takao Y, Horiguchi T, Motomura T
Protoplasma   253(3) 929-941   May 2016   [Refereed]
Ichiro Mine, Takeshi Yamasaki, Satoko Sekida, Kazuo Okuda
Cytologia   81 225-230   Jan 2016
© 2016 The Japan Mendel Society. Cell wall thickness is a quantity that must be known in order to calculate the stress applied to a cell wall along its plane by turgor pressure. Measuring the width of a cell wall section with transmission electron...
Alex Pulvinar Camaya, Alex Pulvinar Camaya, Satoko Sekida, Kazuo Okuda
Cytologia   81 465-470   Jan 2016
Ultrastructural changes in the coral tissues and symbiotic zooxanthellae of the scleractinian coral, Pocillopora damicornis, after exposure to high temperature (HT), ultraviolet (UV) and far-red (FR) radiation were examined by transmission electro...
Taguchi T, Kubota S, Mezaki T, Tagami E, Sekida S, Nakachi S, Okuda K, Tominaga A
Comparative cytogenetics   10(1) 61-75   2016   [Refereed]
Mine I, Sekida S, Okuda K
Phycological Research   63 77-84   Jan 2015   [Refereed][Invited]
© 2015 Japanese Society of Phycology. Summary: Because of their large sizes and simple shapes, giant-celled algae have been used to study how the structural and mechanical properties of cell walls influence cell growth. Here we review known relati...
Felix Bast, Felix Bast, Satoshi Kubota, Kazuo Okuda
Journal of Applied Phycology   27 1725-1735   Jan 2015
© 2014, Springer Science+Business Media Dordrecht. The marine algae genus Monostroma (Thuret) consists of some of the common intertidal green seaweeds in the world. However, reports on its interbreeding potential between geographical radiations or...
Potential suitability of coenocytic green algae as an indicator of the coastal environment in the Kuroshio Region
Mine I, Encarnacion AB, Kato A, Suzuki M, Huang P-Y, Okuda K, Sekida S, Morooka Y
Kuroshio Science   8(2) 148-159   2015   [Refereed]
Electron microscopic observations of anchovey larvae "Dorome" after freezing under electric fields and thawing
Sekida S, Okuda K
Kuroshio Science   8(2) 168-174   2015   [Refereed]
Taguchi T, Mezaki T, Iwase F, Sekida S, Kubota S, Fukami H, Okuda K, Shinbo T, Oshima S, Iiguni Y, Testa JR, Tominaga A
Zoological science   31(2) 89-94   Feb 2014   [Refereed]
Taguchi T, Mezaki T, Iwase F, Sekida S, Kubota S, Fukami H, Okuda K, Shinbo T, Oshima S, Iiguni Y, Testa JR and Tominaga A
Zoological Science   31 89-94   2014   [Refereed]
Takahashi T, Sato M, Toyooka K, Matsuzaki R, Kawafune K, Kawamura M, Okuda K and Nozaki H
Journal of Phycology   50(6) 1058-1069   2014   [Refereed]
Elvira PR, Sekida S, Okuda K
Protoplasma   250 407-414   2013   [Refereed]
Taguchi T, Kubota S, Mezaki T, Sekida S, Okuda K, Nakachi S, Shinbo T, Iiguni Y and Tominaga A
Chromosome Science   16(3+4) 33-38   2013   [Refereed]
Elvira PR, Sekida S, Okuda K
Phycologica   51(4) 391-402   2012   [Refereed]
Terauchi M, Nagasato C, Kajimura N, Mineyuki Y, Okuda K, Katsaros C, Motomura T
Planta   236 1013-1026   2012   [Refereed]
Mine Ichiro, Ozaki Chie, Sekida Satoko, Okuda Kazuo
PHYCOLOGICAL RESEARCH   59(1) 70-73   Jan 2011   [Refereed]
Mine I, Yoshimatsu K, Kobanba A, Sekida S, Okuda K
Phycologia   50(4) 363-369   2011   [Refereed]
Kumagai A, Mizuno M, Kato N, Nozaki K, Togawa E, Yamanaka S, Okuda K, Saxena IM, and Amano Y
Biomacromolecules   12(7) 2815-2821   2011   [Refereed]
Mine I, Yuasa K, Uesugi M, Sekida S, Okuda K
European Journal of Phycology   46(3) 263-270   2011   [Refereed]
Cytoskeletal and ultrastructural studies on regenerating cells from the protoplasts of Valonia (Siphonocladales, Chlorophyceae).
Elvira PR, Okuda K
Kuroshio Scinece   5 39-49   2011   [Refereed]
Distribution of eelgrass, Zostera japonica Aschers. & Graebn., in a tidal river with reference to some environmental characteristics
Himeno S, Yasuoka S, Sekida S, Mine I, Matsui T, Okuda K, Takahashi MM
Hikobia   16 85-94   2011   [Refereed]
Nagasato C, Inoue A, Mizuno M, Kanazawa K, Ojima T, Okuda K, Motomura T
Planta   232(2) 287-298   2010   [Refereed]
Gametangial ontogeny in intertidal green alga: Monostroma latissimum (Kützing) Wittrock.
Bast F, Okuda K
Int. J. Plant Reproductive Biol.   2 11-15   2010   [Refereed]
Field and culture study of the temperature related growth rates of the temperate Sargassum species, Sargassum okamurae Yoshida and S. micracanthum (Kützing) Endlicher (Fucales, Phaeophyceae) in Tosa Bay, southern Japan.
Haraguchi H, Hiraoka M, Murase N, Imoto Z, Okuda K
Algal Resources   2 27-38   2010   [Refereed]
Porphyra fisheries in the northern Philippines: some environmental issues and the socio-economic impact on the Ilocano fisherfolk.
Ame EC, Ayson JP, Okuda K, Andres R
Kuroshio Scinece   4 53-58   2010   [Refereed]
Bast Felix, Shimada Satoshi, Hiraoka Masanori, Okuda Kazuo
HYDROBIOLOGIA   630(1) 161-167   Sep 2009   [Refereed]
F. Bast, M. Hiraoka, K. Okuda
International Journal on Algae   11 141-150   Aug 2009
Sex ratios mediated by environmental conditions are a commonly perceived mechanism through which offspring quality is influenced in many biological systems, but little empirical evidence exists for this complementarity among algal species. This st...
Bast F, Hiraoka M, Okuda K
Int. J. Algae   11 141-150   2009   [Refereed]
Bast F, Shimada S, Hiraoka M, Okuda K
Aquatic Botany   91(3) 213-218   2009   [Refereed]
Cellular morphogenesis in Valonia sp.: with emphasis on the formation of lenticular and rhizoid cells.
Camaya Alex P, Okuda K
Kuroshio Science   2 151-159   2009   [Refereed]
A direction towards sustainable fish feeding culture with least material loading in semi-enclosed seas.
Ping-Yi Huang, Okuda K, Takahashi MM
Kuroshio Science   2 129-138   2009   [Refereed]
Coastal environment and seaweed-bed ecology in Japan
K. Okuda
Kuroshio Science   2(1) 15-20   2008
Mine I, Menzel D, Okuda K
International review of cell and molecular biology   266 37-83   2008   [Refereed]
Kusuda S, Wakimoto T, Sato T, Nishimura K, Kawakami S, Okuda K, Saito E, Shimada T, Sakamoto H, Yanagimoto H, Wada S, Nishio K, Fuji H, Suzuki T, Hashikawa H, Kusunoki H, Doi O
The Journal of reproduction and development   53(5) 1099-1105   Oct 2007   [Refereed]
Mine I, Takezaki N, Sekida S, Okuda K
Planta   226(4) 971-979   2007   [Refereed]
Kusuda S, Nagami H, Kusunoki H, Nishikaku T, Nakagawa D, Takida T, Kurita D, Uemichi K, Fukai M, Kubota H, Ueda K, Ooe T, Okuda K, Ueda K, Doi O
The Journal of veterinary medical science   68(10) 1093-1095   Oct 2006   [Refereed]
Kusuda S, Nagami H, Ueda K, Nishikaku T, Nakagawa D, Takida T, Kurita D, Uemichi K, Fukai M, Kubota H, Ueda K, Ooe T, Okuda K, Kusunoki H, Doi O
The Journal of veterinary medical science   68(8) 847-851   Aug 2006   [Refereed]
Mine I, Anota Y, Menzel D, Okuda K
Protoplasma   226 199-206   2005   [Refereed]
Okuda K, Sekida S, Yoshinaga S, Suetomo Y
Cellulose   11 365-376   2004   [Refereed]
Satoko Sekida, Kazuo Okuda, Kazuhito Katsumata, Takeo Horiguchi
Phycologia   42 661-666   Nov 2003
A novel type of body scale has been found in two strains of unidentified species of the dinoflagellate genus Amphidinium. The body scales are distributed over the entire outer surface of the plasma membrane of the cells, and are embedded in an amo...
Mine I, Okuda K
Planta   225(5) 1135-1146   2003   [Refereed]
A novel type of body scale found in two stains of Amphidinium species (Dinophyceae).
Sekida S, Okuda K, Katsumata K, Horiguchi T
Phycologia   42 661-666   2003   [Refereed]
Mine I, Kubouchi Y, Okuda K
Phycological Research   51: 109-117    2003   [Refereed]
Kawai H, Maeba S, Sasaki H, Okuda K, Henry EC
Protist   154: 211-228    2003   [Refereed]
Okuda K, Tabata S
Journal of plant research   115(4) 269   Aug 2002   [Refereed]
Okuda K
Journal of Plant Research   115: 283-288    2002   [Refereed]
Photoavoidance response of chloroplasts from high intensity light in the giant-cellular green alga Acetabularia peniculus.
Mine I, Shiinoki Y, Okuda K
Hikobia   13: 737-744    2002   [Refereed]
Kazuo Okuda, Satoko Sekida
Progress in Biotechnology   18 93-100   Dec 2001
A marine dinoflagellate Scrippsiella hexapraecingula Horiguchi et Chihara produces a cell covering called a pellicle in the non-motile phase. We found cellulose microfibrils present in the pellicle and new cellulose-synthesizing terminal complexes...
Taizo Motomura, Taizo Motomura, Taizo Motomura, Chikako Nagasato, Chikako Nagasato, Chikako Nagasato, Yoshibumi Komeda, Yoshibumi Komeda, Yoshibumi Komeda, Kazuo Okuda, Kazuo Okuda, Kazuo Okuda
Journal of Phycology   37 783-792   Nov 2001
Mitosis in Boergesenia forbesii (Harvey) Feldman was studied by immunofluorescence microscopy using anti-β-tubulin, anti-γ-tubulin, and anti-centrin antibodies. In the interphase nucleus, one, two, or rarely three anti-centrin staining spots were ...
Satoko Sekida, Takeo Horiguchi, Kazuo Okuda
Phycological Research   49 163-176   Nov 2001
The organization and development of cell coverings in two alternate phases of the life cycle in a marine dinoflagellate, Scrippsiella hexapraecingula Horiguchi et Chihara, were investigated by thin sectioning and freeze-fracture electron microscop...
I. Mine, K. Okuda, D. Menzel
Protoplasma   216 56-65   Jan 2001
In the juvenile stage, the diploid giant-celled green algae Acetabularia spp. are differentiated into an upright stalk and an irregularly branched rhizoid. Early amputation and grafting experiments as well as biochemical and molecular analyses hav...
A putative cellulose-synthesizing terminal complex in Botrydium stoloniferum (Xanthophyceae).
Sekida S, Shibagaki R, Okuda K
Hikobia   13: 457-462    2001   [Refereed]
Motomura T, Nagasato C, Komeda Y, Okuda K
Journal of Phycology   37: 783-792    2001   [Refereed]
Poly(A)+ RNA during vegetative development of Acetabularia peniculus.
Mine I, Okuda K, Menzel D
Protoplasma   216: 56-65    2001   [Refereed]
Sekida S, Horiguchi T, Okuda K
Phycological Research   49: 163-176    2001   [Refereed]
Freeze fracture electron microscopy for the observation of cellulose-synthesizing terminal complexes
Mem Fac Sci Kochi Univ Ser D (Biol)   21 43-48   2000
Indirect immunofluorescence microscopy for observing cytoskeletons in giant-celled green algae
Mem Fac Sci Kochi Univ Ser D (Biol)   21 49-57   2000
Cytomorphogenesis in coenocytic green algae. VI. Dynamic changes in the actin cytoskeleton during wound-induced contraction in Valonia utricularis.
Satoh T, Sakurai N, Okuda K
Hikobia   13: 153-161    2000   [Refereed]
Matsuoka T, Moriyama N, Kida A, Okuda K, Suzuki T, Kotsuki H
Journal of Photochemistry and Photobiology   54: 131-135    2000   [Refereed]
Factors in growth and morphogenesis recovery under axenic conditions in Porphyra yezoensis(Bangiales, Rhodophyta), especially the effect on symbiotic bacteria in conditioned media.
Bulletin of Institute of Oceanic Research and Development, Tokai University   21 57-76   2000
Okuda K
Electron Microscopy   34(2) 81-86   1999   [Refereed]
An improved method for fixing dinoflagellate non-motile cells for electron microscopy.
Sekida S, Horiguchi T, Okuda K
Memoirs of Faculty of Science, Kochi University, Series D (Biology)   20: 11-15    1999
Direct evidence for cellulose microfibrils present in thecal plates of the dinoflagellate Scrippsiella hexapraecingula.
Sekida S, Horiguchi T, Okuda K
Hikobia   13: 65-69    1999   [Refereed]
Chi E-S, Henry EC, Kawai H, Okuda K
Phycological Research   47: 53-60    1999   [Refereed]
Evidence for lateral association of nascent cellulose sheets synthesized by cellulose-synthesizing terminal complexes
Okuda K, Tamura H, Mine I
Memoirs of the Faculty of Science of Kochi University Ser. D.   19: 1-4    1998
Cellulose microfibril assembly in algae
Cellulose Communications   4(3) 101-107   1997
Cytomorphogenesis in coenocytic green algae. IV. The construction of cortical microtubules during lenticular cell formation in Valonia utricularis.
Okuda K. Ueno S, Mine I
Memoirs of the Faculty of Science, Kochi University, Series D (Biology)   18: 17-25    1997
I. Tsekos, I. Tsekos, K. Okuda, R. M. Brown
Protoplasma   193 33-45   Jan 1996
The formation and development of linear terminal complexes (TCs), the putative cellulose synthesizing units of the red alga Erythrocladia subintegra Rosenv., were investigated by a freeze etching technique using both rotary and unidirectional shad...
Gamete discharge by Bryopsis plumosa (Codiales, Chlorophyta) induced by blue and UV-A light.
Mine I, Okuda K, Tatewaki M
Phycological Research   44: 185-191    1996   [Refereed]
The formation and development of cellulose-synthesizing linear terminal complexes(TCs)in the plasma membrane of the marine red alga Erythrocladia subintegra Rosenv.
Tsekos I, Okuda K, Brown RMJr
Protoplasma   193: 33-45    1996   [Refereed]
Cytomorphogenesis in coenocytic green algae III. Side branch formation involving microtubules in Trichosolen hainanesis.
Okuda K, Shiraishi S
Memoirs of the Faculty of Science, Kochi University, Series D (Biology)   16(17: 17-27)    1996
Cellulose-synthesizing terminal complexes and microfibril structure in the brown alga Sphacelaria rigidura (Sphacelariales, Phaeophyceae).
Tamura H, Mine I, Okuda K
Phycological Research   44: 63-68    1996   [Refereed]
Plasma membrane rosettes in the hornwort Anthoceros angustatus.
Okuda K, Matsui T, Mine I, Itoh T
Hikobia   12: 43-48    1996   [Refereed]
Kobayashi S, Shoda S. Lee J, Okuda K, Brown RMJr
Macromol Chem Phys   195: 1319-1326    1994   [Refereed]
Experimental studies on the stability of the cortical microtubule cytoskeleton in relation to polarity and cell elongation in the coenocytic green alga, Chaetomorpha moniligera.
Mizuta S, Kaneko M, Kimura S, Okuda K
Annalus of Botany   73 273-280   1994   [Refereed]
Characterization of genes in the cellulose-synthesizing operon(acs operon) of Acetobacter xylinum: Implications for cellulose crystallization.
Saxena IM, Kudlicka K, Okuda K, Brown RMJr
Journal of Bacteriology   176: 5735-5752    1994   [Refereed]
Cellulose microfibril assembly in Erythrocladia subintegra Rosenv.: An ideal system for understanding the relationship between synthesizing complexes(TCs) and microfibril crystallization.
Okuda K, Tsekos I, Brown RMJr
Protoplasma   180: 49-58    1994   [Refereed]
Life history of Bryopsis muscosa Lam. and Bryopsis corymbosa J. Ag. in Japan.
Okuda K
Hikobia   11: 505-518    1994   [Refereed]
Kazuo Okuda, Kazuo Okuda, Likun Li, Krystyna Kudlicka, Shigenori Kuga, Shigenori Kuga, R. Malcolm Brown
Plant Physiology   101 1131-1142   Apr 1993
In vitro β-glucan products were synthesized by digitonin-solubilized enzyme preparations from plasma membrane-enriched fractions of cotton (Gossypium hirsutum) fiber cells. The reaction mixture favoring β-1,4-glucan synthesis included the followin...
K. Okuda, K. Matsuo, S. Mizuta
Botanica Marina   36 53-62   Jan 1993
The relationships between cell growth and the organization of cortical microtubules (MTs) in the coenocytic green alga Chamaedoris orientalis were studied by indirect immunofluorescence microscopical observation of cells treated with amiprophos-me...
Cytomorphogenesis in coenocytic green algae. II. Dynamics of nuclei during vegetative and gametogenetic differentiation in Bryopsis corticulans.
Okuda K, Matsusaki Y, Mizuta S
Memoirs of the Faculty of Science of Kochi University Ser. D.   14: 57-67    1993
Cytomorphogenesis in coenocytic green algae. I. Life history of Bryopsis corticulans Setchell.
Okuda K, Mizuta S
Memoirs of the Faculty of Science of Kochi University Ser. D.   14: 51-56    1993
Diversity and evolution of putative cellulose-synthesizing enzyme complexes in green plants
Okuda K
Japanese Journal of Phycology   41,151-173    1993   [Refereed]
β-glucan synthesis in the cotton fiber I.
Okuda K, Li L, Kudlicka K, Kuga S, Brown RMJr
Plant Physiology   101,1131-1142    1993   [Refereed]
The meridional arrangement of cortical microtubules defines the site of tip growth in the coenocytic green alga, Chamaedoris orientalis.
Okuda K, Matsuo K, Mizuta S
Botanica Marina   36: 53-62    1993   [Refereed]
A new putative cellulose-synthesizing complex of Coleochaete scutata.
Okuda K, Brown RMJr
Protoplasma   168: 51-63    1992   [Refereed]
Involvement of cytoskeletal microtubules in microfibrillar patterns in the cell walls of the developing coenocytic green alga, Boodlea coacta.
Mizuta S, Katoh S, Harada T, Yamada H, Okuda K, Morinaga T
Botanica Marina   34: 417-424    1991   [Refereed]


Summary report of the 6th international Kuroshio conference
Nieves PM, Okuda K, Tominaga A, Morooka Y
Kuroshio Science   7(1) 7-16   2013
Summary report on the 3rd joint Kuroshio symposium/record of discussion
Nieves PM, Okuda K, Lee T-M, Morooka Y
Kuroshio Science 4(1): 9-17   4(1) 9-17   2010
Summary report on the 2nd joint Kuroshio Symposium – Biodiversity in Kuroshio Waters –
Morooka Y, Jegatheesan S, Mok H-K, Lee T-M, Nieves PM, Okuda K
Kuroshio Science   3(1) 7-14   2009
Summary report on the joint Kuroshio workshop
Jegatheesan S, Morooka Y, Okuda K
Kuroshio Science   2(1) 7-10   2008

Books etc

Atlas of Plant Cell Structure
Sekida S, Okuda K (Part:Contributor, Formation of amphiesmal vesicles and thecal plates in the dinoflagellate Scrippsiella hexapraecingula)
Springer   2015   
Ecosystem management and conservation towards sustainabiligy in the Kuroshio region
Nieves PM, Tominaga A, Lee J-D, Okuda K (Part:Joint Editor)
Graduate School of Kuroshio Science Kochi Univ.   2013   
Investigating benefits and balance along the Kuroshio Current: "Challenges to marine biodiversity and resource management"
Morooka Y, Nieves PM, Okuda K (Part:Joint Editor)
Graduate School of Kuroshio Science Kochi Univ.   2010   
Biodiversity in Kuroshio Waters: "A perspective of Joint study among Japan, Taiwan and the Philippines"
Morooka Y, Mok H-K, Okuda K (Part:Joint Editor)
Graduate School of Kuroshio Science Kochi Univ.   2009   
Recent changes in the seaweed ecosystem along the Kuroshio Current: "Towards collaborative rehabilitation of the cradle of fishes"
Morooka Y, Okuda K (Part:Joint Editor)
Graduate School of Kuroshio Science Kochi Univ.   2008   
International Review of Cell and Molecular Biology, Volume 266
Elsevier Academic Press, Burlington MA USA   2008   ISBN:1937-6448
Cellulose: molecular and structural biology
Okuda K, Sekida S (Part:Contributor, Cellulose-synthesizing complexes of a dinoflagellate and other unique algae)
Springer   2007   ISBN:1-4020-5332-0
Algal culturing techniques
Kawai H, Motomura T, Okuda K (Part:Contributor, Isolation and purification techniques for macroalgae)
Elsevier   2005   
Molecular Breeding of Woody Plants (Progress in Biotechnology Vol 18).
Okuda K, Sekida S (Part:Contributor, Organization of cellulose-synthesizing terminal complexes)
Elsevier   2001   
Ecology and Biology of Giant Unicellular Algae
Okuda K, Mine I (Part:Contributor, Establishment of a growth axis and cortical microtubule reorganization in regenerating protoplasts of the coenocytic green alga, Boodlea coacta)
Bollettino del Museo Regionale di Scienze Naturali, Torino   1997   

Conference Activities & Talks

Molecular cytogenetic study on scleractinian corals (detection of characteristic heterochromatin distribution, mini-satellite DNAs shared with a human, and highly amplified rRNA genes)
Taguchi T, Kubota S, Mezaki T, Sekida S, Okuda K, Tominaga A
8th international symposium on Kuroshio Science   13 Sep 2014   
Ribosomal RNA gene mapping and manifestation of sex chromosomes on the scleractinian coral Acropora Solitaryensis Veron & Wallace
Taguchi T, Kubota S, Mezaki T, Sekida S, Okuda K, Tominaga A
10th Asia-Pacific Marine Biotechnology Conference   8 May 2014   
Ultrastructure of cortical and extracellular structures of zooxanthellae during cell division in a coral cell
Sekida S, Okuda K
10th international phycological congress   4 Dec 2013   
Maintenance of cell wall integrity in the giant-celld, green seaweed Valonia utricularis
Sizuki S, Li K-F, Mine I, Okuda K
6th international confefence on Kuroshio Science   2 Dec 2012   
Importance of seaweeds and their current status in San Miguel Island, Lagonoy Gulf, Philippines, and aspects of Valonia sp. in cell biology
Camaya AP, Soliman VS, Mendoza AB, Okuda K
6th international confefence on Kuroshio Science   2 Dec 2012   
Effect of substratum hardness on Valonia rhizoid differentiation
Elvira PRV, Sekida S, Mine I, Okuda K
5th international Kuroshio Symposium   10 Dec 2011   
Protoplast regeneration in Valonia (Chlorophyta).
Elvira PRV and Okuda K
15th Biological Science Graduate Congress (2010), University of Malaya   Dec 2010   
Induction of rhizoid formation in the coenocytic green alga Valonia.
Elvira PRV, Sekida S and Okuda K
4th international symposium on Kuroshio Science   Nov 2010   
Control of Rhizoid Formation in Valonia.
Elvira PRV and Okuda K
64th Annual Meeting of the Phycological Society of America, Michigan State University, USA   Jul 2010   
Cellulose microfibril assembly in algae and its evolution.
Investigating benefits and balance along Kuroshio: Challenges to marine biodiversity and resource management, 3rd international conference on Kuroshio   2009   
Effect of seawater temperature on the growth of Sargassum Species in Tosa Bay, Southern Japan.
Conference on Climate Change Adaptation Science and Technologies for the Agriculture, Forestry and Natural Resources Sector, Philippines.   2009   
Membrane fusion during cytokinesis of brown algae, Fucus distichus and Silvetia babingtonii (Fucales, Phaeophyceae).
9th International Phycological Congress   2009   
Ultrastructure of the cell covering in the dinoflagellate Pyrocystis lunula.
9th International Phycological Congress   2009   
Asexual life history by biflagellate zoids of Monostroma latissimum (Kuetzing) Wittrock, (Ulotrichales, Monostromataceae).
57th Annual Meeting of the British Phycological Society, January 5-7, London.   2009   
Coastal environment and seaweed ecology in Japan.
Japan, Taiwan and the Philippines joint Kuroshio workshop in Kochi   2007   
Distribution changes and growth characteristics in low temperature of two species in Sargassum beds of Kochi prefecture, Japan.
19th International Seaweed Symposium   2007   
Sexual and asexual life histories of Monostroma in Tosa Bay, Japan.
19th International Seaweed Symposium   2007   
Cellulose-synthesizing complexes in Chromophyte algae.
19th International Seaweed Symposium   2007   
Cell growth and cell wall mecanical properties in the giant cellular xanthophycean alga Vaucheria terrestris.
International Symposium "Marine Algae & Global Warming"   2006   
Changes in thecal plate patterns in the dinoflagellate Scrippsiella hexapraecingula (Peridiniales, Dinophyta).
8th International Phycological Congress   2005   
Changes in stainability of cortical membranes in the dinoflagellate Scrippsiella hexapraecingula.
Algae 2002, 26th annual and 50th anniversary congress of Japanese Society of Phycology and 3rd Asian Pacific Phycological Forum   2002   
Cell wall extensibility in the tip-growing xanthophycean alga Vaucheria terrestris.
Algae 2002, 26th annual and 50th anniversary congress of Japanese Society of Phycology and 3rd Asian Pacific Phycological Forum   2002   
Morphogenesis in giant algal cells.
Algae 2002, 26th annual and 50th anniversary congress of Japanese Society of Phycology and 3rd Asian Pacific Phycological Forum   2002   
Schizocladia ischiensis: A new filamentous marine chromophyte, and proposal of a new class Schizocladiophyceae.
7th International Phycological Congrees   2001   
Membrane structure involved in cellulose biosynthesis.
7th International Phycological Congress   2001   
Organization of cellulose-synthesizing terminal complexes.
International Wood Biotechnology Symposium, JSPS "Research for the Future" Program   2001   
Porphyra yezoensis: marine red alga requiring symbiotic bacteria for its morphogenesis.
International Marine Biotechnology Conference   2000   
The construction of Cytoskeletal arrays during cell division in Valonia utricularis.
6th International Phycological Congress   1997   
Supramolecular organization of cell membranes and cellulose microfibril assembly and orientaion in red algae.
5th International Botanical Microscopy Meeting Plant cell Biology, Royal Microscopical Society   1995   
The roles of cortical microtubules on cell growth in marine coenocytic green algae.
5th International Phycological Congress   1994   
Structure of putative cellulose synthesizing enzyme complexes and assembly of cellulose microfibrils.
15th International Botanical Congress   1993   
A new putative cellulose-synthesizing complex in Coleochaete scutata.
Cellulose '91, American Chemical Society   1991   
Photoaffinity labeling of glucan synthases and identification of in vitro products from the cotton fiber.
Cellulose '91, American Chemical Society   1991   
Ultrastructure in gametogenetic processes of Pseudobryopsis hainanensis Tseng.
3rd International Phycological Congress   1988   

Research Grants & Projects

Structure of cell coverings
Plant cell morphogenesis