The126th KARC Colloquium
| Date&Time | 7 October 2016(Fri) 14:00-15:30 |
| Place | Conference Room, 3F, Research Building 2, Advanced ICT Research Institute |
| Lecturer | Gravitaxis and bioconvection of the unicellular green alga Chlamydomonas reinhardtii |
| Speaker | Azusa Kage Dept. Finemechanics, School of Engineering, Tohoku University |
| Abstract | How does a single cell respond to gravity? This question has remained on earth as fundamental challenge in gravitational biology. Swimming unicellular protists have been known to show geotactic or gravitactic behavior: they swim against or toward the direction of gravity (e.g. [1]). What is puzzling is that most of these protists do not have a structure that specifically perceive gravity. Here I am presenting how negative gravitaxis occurs in the unicellular model green alga Chlamydomonas reinhardtii, particularly focusing on our recent research [2]. Furthermore, bioconvection, a collective motion driven by negative gravitaxis and phase transition phenomena in bioconvection [3, 4] will be discussed.[1] Wager, 1911, Phil. Trans. Royal Soc. B[2] Kage et al., in revision[3] Kage et al., 2013, J. Exp. Biol.[4] Kage et al., 2015, Zool. Sci. |
| Language | Japanese |
| Admission | Free |