Water channel required to facilitate the transport of water from the vacuolar compartment to the cytoplasm. Mainly expressed in fruits and leaves, and, to a lower extent, in roots, stems and flowers. Induced by salt (NaCl) (PubMed:26307965, PubMed:29778840). Triggered by drought (PubMed:29778840). Aquaporins contain two tandem repeats each containing three membrane-spanning domains and a pore-forming loop with the signature motif Asn-Pro-Ala (NPA). May be used to improve drought and salt stresses resistance. Belongs to the MIP/aquaporin (TC 1.A.8) family. TIP (TC 1.A.8.10) subfamily.