Aquaporins in plants

Although very often exposed to a rapid changing environment, plants are in general unable to evade from unfavourable conditions. Therefore, a fine tuned adaptation of physiology including the water balance appears to be of crucial importance. As a consequence a relatively large number of aquaporin g...

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Bibliographic Details
Published in:Acta Physiologica 2006-05, Vol.187 (1-2), p.169-176
Main Authors: Kaldenhoff, R., Fischer, M.
Format: Article
Language:English
Subjects:
Ammonia - metabolism
Animals
Aquaporins - genetics
Aquaporins - physiology
Biological and medical sciences
Carbon Dioxide - metabolism
Cell Membrane - metabolism
Cell Membrane Permeability
Fundamental and applied biological sciences. Psychology
gas transport
Gene Expression Regulation, Plant
Ion Transport
Mammals - metabolism
Plant Physiological Phenomena
Plant physiology and development
plant-aquaporin
Water and solutes. Absorption, translocation and permeability
water channel
Water-Electrolyte Balance
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Summary:Although very often exposed to a rapid changing environment, plants are in general unable to evade from unfavourable conditions. Therefore, a fine tuned adaptation of physiology including the water balance appears to be of crucial importance. As a consequence a relatively large number of aquaporin genes are present in plant genomes. So far aquaporins in plants were shown to be involved in root water uptake, reproduction or photosynthesis. Accordingly, plant aquaporin classification as simple water pores has changed corresponding to their molecular function into channels permeable for water, small solutes and/or gases. An adjustment of the respective physiological process could be achieved by regulation mechanisms, which range from post‐translational modification, molecular trafficking to heteromerization of aquaporin isoforms. Here the function of the four plant aquaporin family subclasses with regard to substrate specificity, regulation and physiological relevance is described.
ISSN:1748-1708
1748-1716
DOI:10.1111/j.1748-1716.2006.01563.x