Saturday, January 21, 2017
Study of round worm that returns to life after freezing.
The first molecular study of an organism able to survive intracellular freezing i.e freezing within its cells is published in a new paper that represents a milestone in scientists’ understanding of an extraordinary adaptation. The tiny Antarctic nematode, more commonly known as a round worm, (Panagrolaimus sp. DAW1) was cultured from a coastal Antarctic penguin rookery at McMurdo Sound, and is the best-documented organism able to survive the disruptions brought about by total freezing. The nematode is also able to undergo a form of freeze avoidance by eliminating all of its water content, called cryoprotective dehydration. However, it is the ability to survive intracellular freezing which makes this organism really stand out.continue