In the past five years, there have been rapid advances at several organizational levels in the understanding and measurement of the biology of transpiration. These areas have developed separately, yet each has major implications for the others. To catalyze needed interactions among scientists working in diverse areas, all aspects of water transport will be covered at levels spanning from gene expression to global modeling, including:

• Root water uptake
• Regulation of water flow by aquaporins
• Long distance transport and xylem hydraulics
• Guard cell physiology and development
• Mechanisms controlling transpiration from the leaf to the globe.

A goal of this meeting is to bring together outstanding scientists from around the globe who might not otherwise meet.