Aquaporins are essential for embolism repair in grapevine: i) root vessel embolization in different genotypes was inversely related to aquaporin-mediated water transport, suggesting a role of aquaporins in embolism recovery during stress; ii) no activation of aquaporin-mediated water transport is observed upon water stress; iii) at rehydration, recovery of conductivity is impaired in the presence of HgCl2 in roots and in shoots; iv) aquaporin-mediated water transport can either facilitate rehydration of the vessel-surrounding tissues or directly facilitate entry of water in the embolized vessels.
Biological functions of MIPs in plants
SCHUBERT, Andrea;LOVISOLO, Claudio
2005-01-01
Abstract
Aquaporins are essential for embolism repair in grapevine: i) root vessel embolization in different genotypes was inversely related to aquaporin-mediated water transport, suggesting a role of aquaporins in embolism recovery during stress; ii) no activation of aquaporin-mediated water transport is observed upon water stress; iii) at rehydration, recovery of conductivity is impaired in the presence of HgCl2 in roots and in shoots; iv) aquaporin-mediated water transport can either facilitate rehydration of the vessel-surrounding tissues or directly facilitate entry of water in the embolized vessels.
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