Amoeba Fail! This poor Dictyostelium (colored green) is trying very hard to engulf a mutant yeast cell that is just too large 🙂
The orange label is on actin filaments : cytoskeletal elements that organize around the edges, ready to close off the phagosome. Myosin motors pull the actin together, like the drawstring of a purse.
Notice the force with which the amoeba ejects the yeast cell when it gives up. Then it tries again , from a different angle. Watch the excess surface membrane being thrown into ruffles before it is quickly absorbed into the cell. Not surprisingly, this video was titled Frustration!
Credits: My awesome Google+ team of Kevin Staff who made the animated gif and Konstantin Makov , as usual. Thank you for making science fun!
#ScienceSunday, Allison Sekuler , Robby Bowles .