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入学希望の方一般・社会人の方研究者の方同窓生の方在学生の方教職員の方 日本語 (Japanese) Graduate School of Life Sciences, Tohoku University Access sitemap Link Tohoku University HOMEAbout UsAbout UsMessage from the DeanOrganizationMovieResearchLaboratories Department of Integrative Life Sciences Department of Ecological Developmental Adaptability Life Sciences Department of Molecular and Chemical Life SciencesResearchAwardEducationDegree ProgramsCourseSyllabusScheduleStudent LifeAdmissionAdmission InformationApplicationExamination Schedule and Application GuidelinesInformation Session(2024)Admission and Tuition FeesAdmission PolicyVoices from Graduates and Current StudentsAdmissions Q&AInquiries about Entrance ExaminationsFinancial SupportFor StudentsGraduate School&＃039;s Message Board for Students Information about Completion and Advancement to the Doctoral Course ProceduresCertificatesAbout Issuance of Various CertificatesNotice Regarding the Suspension of Operation of the Automatic Certificate Issuing MachinesLeave of absence/withdrawal from universityCampus Life, Various consultation servicesContactAccessLinkSitemapInformationAdmissionResearchAwardSeminarJobNewsAnnouncementOther MENU HOMEAbout UsAbout UsMessage from the DeanOrganizationMovieResearchLaboratoriesResearchAwardEducationDegree ProgramsCourseSyllabusScheduleStudent LifeAdmissionAdmission InformationApplicationExamination Schedule and Application GuidelinesInformation Session(2024)Admission and Tuition FeesAdmission PolicyVoices from Graduates and Current StudentsAdmissions Q&AInquiries about Entrance ExaminationsFinancial SupportFor StudentsGraduate School&＃039;s Message Board for Students Information about Completion and Advancement to the Doctoral Course ProceduresCertificatesLeave of absence/withdrawal from universityCampus Life, Various consultation servicesContactAccessLinkSitemapInformationAdmissionResearchAwardSeminarJobNewsAnnouncementOther 日本語 (Japanese) CLOSE Graduate School of Life Sciences, Tohoku University. Fields Ecological Developmental Adaptability Life Sciences :Biological Dynamics Research Plant Cell Dynamics HOME Research Laboratories Plant Cell Dynamics JAPANESE Plant Cell Dynamics Flowering plants form various organs, such as the flower, leaves, root and stem, which develops along its body axis. One of the most fundamental axes is the apical-basal (shoot-root) axis, i.e. the apical (top part) develops into shoots, containing flowers, stems and leaves, and the basal (bottom part) grows into roots. The fertilized egg cell (zygote), which is the origin for plants, establishes the plant’s body axis from its first cell division. In Arabidopsis thaliana, the zygote possesses the nucleus at the apical cell tip and large vacuoles at the basal end. Despite the obvious asymmetry, the real-time dynamics of the zygote polarization steps was poorly understood, because the zygote develops deep in the flower. Therefore we established a live-cell imaging system to visualize the intracellular dynamics of the zygote through the seed. By combining this system with various fluorescent reporters, specific inhibitors and mutants, we assessed the dynamics and roles of intracellular structures in zygote polarization. For example, we found that the vacuoles form thin tubular strands along longitudinal array of actin filaments, and polarly position to the basal cell end, supporting apical-directed nuclear migration and thus asymmetric division of the zygote and subsequent embryo pattern formation. In addition of the visualization of intracellular dynamics, we are screening the key regulators of polarization events by using transcriptome approach. By combining these approaches with further techniques, such as chemical biology and image quantification, we aim to understand the initiation steps of plant ontogeny from the single-celled zygote. URLs http://www.lifesci.tohoku.ac.jp/PlantCellDyn/?lang=en Faculty Members Professor UEDA Minako More Cell polarity, plant development, live imaging Assistant Professor KIMATA Yusuke More Body axis formation in plants Assistant Professor MATSUMOTO Hikari More Elucidation of the mechanism of the establishment of apical-basal axis   Assistant Professor SUZUKI Hidemasa More Vegetative reproduction of Bryophytes ResearchLaboratories Department of Integrative Life Sciences Department of Ecological Developmental Adaptability Life Sciences Department of Molecular and Chemical Life SciencesResearchAward GO TOP Graduate School of Life SciencesTohoku University 2-1-1 Katahira, Aoba-Ku, Sendai 980-8577 Academic Affairs Section Tel : +81-22-217-5706 / Fax: +81-22-217-5704   General Affairs Section Tel : +81-22-217-5702 / Fax: +81-22-217-5704   Contact ・Privacy Policy HOMEAbout UsAbout UsMessage from the DeanOrganizationMovieResearchLaboratories Department of Integrative Life Sciences Department of Ecological Developmental Adaptability Life Sciences Department of Molecular and Chemical Life SciencesResearchAwardEducationDegree ProgramsCourseSyllabusScheduleStudent LifeAdmissionAdmission InformationApplicationExamination Schedule and Application GuidelinesInformation Session(2024)Admission and Tuition FeesAdmission PolicyVoices from Graduates and Current StudentsAdmissions Q&AInquiries about Entrance ExaminationsFinancial SupportFor StudentsGraduate School&＃039;s Message Board for Students Information about Completion and Advancement to the Doctoral Course ProceduresCertificatesAbout Issuance of Various CertificatesNotice Regarding the Suspension of Operation of the Automatic Certificate Issuing MachinesLeave of absence/withdrawal from universityCampus Life, Various consultation servicesContactAccessLinkSitemapInformationAdmissionResearchAwardSeminarJobNewsAnnouncementOther © 2004-2023 Graduate School of Life Sciences, Tohoku University no cache