There are some aquaporins in plasma membranes and tonoplasts of plant cells, and they play some important physiological roles in long distance water transportation, osmoregulation, and so on.

• 在植物细胞的原生质膜和液泡膜上存在水孔蛋白,它们在水分长途运输、渗透调节等方面具有重要的生理作用。