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Title: Freezing tolerance by vesicle-mediated fructan transport
Authors: Valluru, Ravi ×
Lammens, Willem
Claupein, Wilhelm
Van den Ende, Wim #
Issue Date: Aug-2008
Publisher: Elsevier science london
Series Title: Trends in plant science vol:13 issue:8 pages:409-414
Abstract: Fructans are fructose-based polymers associated with freezing tolerance. They might act directly via membrane stabilization or indirectly by stimulating alternative cryoprotectants. Fructans and fructan biosynthetic enzymes, in general, are believed to be present in the vacuole. This paper draws particular attention to the surprising presence of fructans and fructan exohydrolase activity in the apoplast of cold-stressed plants. This observation raises questions concerning the origin of apoplastic fructans and suggests that fructans are transported to the apoplast by post-synthesis mechanisms, perhaps induced by cold. We propose a conceptual vesicle-mediated transport model for the movement of vacuolar fructans to the apoplast, where they could assist in stabilizing the plasma membrane.
URI: 
ISSN: 1360-1385
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Physiology of Plants and Micro-organisms Section - miscellaneous
× corresponding author
# (joint) last author

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