This is more specifically known as plasmolysis. Freezing injury is a result of lost permeability, plasmolysis, and post-thaw cell bursting. Sugar tends to draw water from the microbes (plasmolysis). Prolonged periods of dehydration, however, can lead to permanent wilting, cell plasmolysis, and subsequent death. Plasmolysis can be of two types, either concave plasmolysis or convex plasmolysis. Convex plasmolysis is always irreversible while concave plasmolysis is usually reversible. Plasmolysis only occurs in extreme conditions and rarely occurs in nature. Plasmolysis can be reversed if the cell is placed in a hypotonic solution. Plasmolysis is the process in which cells lose water in a hypertonic solution. Plasmolysis is mainly known as shrinking of cell membrane in hypertonic solution and great pressure.