宇佐美 昭二
(うさみ・しょうじ)
Shoji Usami
略歴
- 名古屋大学大学院理学研究科博士後期課程修了
- 通産省工業技術院微生物工業技術研究所研究員、名古屋大学理学部生物学科助手、広島大学大学院先端物質科学研究科准教授を経て本学へ
微細緑藻における細胞内情報伝達系の解析
植物根頭がんしゅ病抑制細菌の機能解析
有用微細藻類や植物固有種の育種と利用
小中高校生向け実験教材の開発
- 研究の応用領域
- 微細藻類・植物固有種の改良・育種、土壌細菌による有用物質・土壌改良剤の開発、小中高校・一般向け実験教材
- 産官学連携で求めるパートナー
- 実験教材開発関連企業、微細緑藻・植物の開発関連企業、農業資材開発関連企業、農業関連研究・試験場など
MAPK transduction pathways in green algae
MAPK (mitogen-activated protein kinase) transduction pathway is one of most famous intracellular signal transduction pathways conserved in eukaryotic cells. They are concerned in regulation of cellular events such as cell division, differentiation and apoptosis. Chlamydomonas reinhardtii, a unicellular green alga, is a simplest plant cell. Genomic information suggested that there are only 8 MAPK homologs in Chlamydomonas, 3 homologs (CrMPK1, CrMPK2 and MAPK6) are TEY-type and 2 homologs (MAPK2 and MAPK4) are plant-specific TDY-type. The 2 TDY-type MAPK homologs have encoded unique amino acid domains that might be required for regulation of MAPK’s functions. The analysis of those plant-specific TDY-type MAPK homologs in Chlamydomonas may suggest the plant-specific function in higher plants.
Agrobacterium tumefaciens and soil bacteria
Agrobacterium tumefaciens is a causative soil bacterium that induces crown gall tumors by introduction of T-DNA into recipient plant cells. The agrobacteria also produce some industrially important organic materials such as cellulose and curdlan. We have modified the agrobacteria genetically to over-produce or to recycle the cellulose and curdlan. Also, we have analyzed soil bacteria that suppress the formation of crown gall tumors by agrobacteria. There may be novel mechanisms to inhibit the formation of crown gall tumors.
Isolation and breeding of endemic microalgae and plant species around Biwa lake
There are many endemic microalgae and plant species around Biwa lake. They may be unique resources of industrially important materials such as medicine and oil. We are now breeding of the endemic microalgae species such as Closterium spp. that shows very long needle shape.
Development of scientific experiments for elementary- to high-school students
Askora, A., Kawasaki, T., Usami, S., Fujie, M., and Yamada, T.: Host recognition and integration of f ilamentous phage φRSM in the phytopathogen, Ralstonia solanacearum. Virology, 384 69-76 (2009)
Kawasaki, T., Shimizu, M., Satsuma, H., Fujiwara, A., Fujie, M., Usami, S., and Yamada, T.: Genomic characterization of Ralstonia solanacearum phage φRSB1, a T7-like wide-host-range phage. J. Bacteriol., 191 422-427 (2009)
Alemzadeh, A., Fujie, M., Usami, S., Yoshizaki, T., Oyama, K., Kawabata, T., and Yamada, T.: ZMVHA-B1, the gene for subunit B of vacuolar H+-ATPase from the eelgrass Zostera marina L. is able to replace vma2 in a yeast null mutant. J. Biosci. Bioeng., 102 390-395 (2006)