Polarization: Its increase in politics and community discourse worries and saddens me. But it developmental biology, it& #39;s important, and even beautiful. This week, we& #39;ve made breakthroughs measuring it and understanding how plant cells use it (with surprises!). First up, nuclei.

Andrew Muroyama showed that asymmetrically dividing plant cells have a "cellular compass" that guides the migration of the nucleus away from the center so the cell makes two unequal daughters. https://doi.org/10.1016/j.cub.2020.08.100
But">https://doi.org/10.1016/j... then...

The nucleus in one daughter does a 180, and heads right back in the opposite direction. Q1: How? A1: multiple motors and cytoskeletal systems
Q2: Why? A2: We think it& #39;s because these are stem cells, and they need to keep track of history, and neighbors. https://news.stanford.edu/2020/09/17/cellular-compass-guides-plant-stem-cell-division/">https://news.stanford.edu/2020/09/1...