Root Water Transport Under Waterlogged Conditions and the Roles of Aquaporins

  • Helen Bramley
  • Steve Tyerman


Water flow through plants roots can be affected when the soil is waterlogged and oxygen deficient. For species not adapted to these conditions, water flow usually decreases within minutes to days, depending on the oxygen concentration in the root and rhizosphere. During this time, the decrease in water flow is attributed to decreased root hydraulic conductance, through an inhibition of plasma-membrane aquaporins. There is increasing evidence that aquaporins may also be involved in the transport of gases, end products of anaerobic respiration, and signalling molecules; all of which are relevant to oxygen-deficient conditions. Eventually, primary roots die if continually starved of oxygen, but may be replaced with adventitious roots that can maintain the supply of water to the shoot. Here, we review the effects of waterlogging and oxygen deficiency on root hydraulic conductance and aquaporin activity.


Nitric Oxide Hydraulic Conductance Adventitious Root Water Permeability Oxygen Deficiency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.Institute of AgricultureThe University of Western AustraliaCrawleyAustralia
  2. 2.School of Agriculture, Food and WineThe University of Adelaide (Waite Campus), Plant Research CentreGlen OsmondAustralia

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