• CanadaPlus@lemmy.sdf.org
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    2 days ago

    I was going to say anything except maybe an aridity-adapted plant would dry out very quickly through those stomata, because it would be boiling off. I kind of forgot about the non-leaf plant parts, though.

    • groet@feddit.org
      link
      fedilink
      English
      arrow-up
      1
      ·
      2 days ago

      I think a grown tree would should out pretty long. The pressure in the tracheids is so low already that water should be boiling inside a tree in normal atmospheric conditions. The capillary forces of the narrow tube and the surface tension of water hold the water liquid. I could imagine the water in the top 10% of the tracheids evaporating in less then a minute but the rest will take a long time to drive out. I might be wrong though I couldn’t find any papers on plants in vacuum. Lots about zero gravity and space radiation though…