Toxic effects of wounding Caulerpa

[Sushiman]

Well, I don't know if it the same with plants as it is with animals & humans but a ripping / tearing injury elongates the tissues as they are quite elastic & actually can help reduce fluid loss as they are stretched. A straight laceration doesn't do this, think of it like cutting a garden hose, quite a bit of fluid loss can occur.
Creepy little bits of knowledge from work...