Role of aquaporins in leaf physiology

Role of aquaporins in leaf physiology.

Playing a key role in plant growth and development, leaves need to be continuously supplied with water and carbon dioxide to fulfil their photosynthetic function. On its way through the leaf from the xylem to the stomata, water can either move through cell walls or pass from cell to cell to cross the different tissues. Although both pathways are probably used to some degree, evidence is accumul...

Role of aquaporins in renal water handling: physiology and pathophysiology.

the six bilayer spanning domains are connected by five Introduction loops (A–E in Figure 1). The molecule consists of two repeats of three a-helices which are 180° mirror images An essential function of the mammalian kidney is its of each other (Figure 1). Each repeat contains the ability to conserve or excrete free water independent highly conserved family characteristic asparagineof changes i...

Physiology and pathophysiology of aquaporins.

Physiology And PAthoPhysiology of AquAPorins

Received 2 July 2010, accepted 1 August 2010. Correspondence to: Dr Amaia Rodríguez, Metabolic Research Laboratory, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain. Tel.: +34 948 42 56 00 (ext. 6544), Fax: +34 948 42 56 52, E-mail: [email protected] Abstract Aquaporins (AQPs) are water channels that facilitate a rapid transport of water, across cell membranes. in some cases, these pore...

Aquaporins in brain: distribution, physiology, and pathophysiology.

Water homeostasis in the brain is of central physiologic and clinical importance. Neuronal activity and ion water homeostasis are inextricably coupled. For example, the clearance of K+ from areas of high neuronal activity is associated with a concomitant water flux. Furthermore, cerebral edema, a final common pathway of numerous neurologic diseases, including stroke, may rapidly become life thr...