Is this organism going to divide ?

A dark green algal cell remains still at the center of the screen. As the cell is narrow in the middle and includes chloroplasts on both sides, the organism may be in the process of dividing. However, nothing happens during this 3-minute video.

Commentary by Prof. Yuji Tsukii, Hosei University
This organism is Cosmarium scopulorum, and belongs to a family of algae, Desmidaceae. The organism has a point symmetrical shape, which means 2 equal semicells connected at a single point.

http://protist.i.hosei.ac.jp/PDB/Im.....

Sampling Date : 28 May 2009

Sampling Site : Hirose River B  Google Map