| The pressure probe technique： principles and application in research of plant water relations |
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| DOI：10.7606/j.issn.1000-7601.2008.04.33 |
| Key Words: pressure probe water relations hydraulic conductivity |
| Author Name | Affiliation | | LIU Xiaofang | State Key Laboratory of Soil Erosion and Dryland Farming of the Loess Plateau Institute of Soil and Water Conservation Northwest A ＆ F University,Yangling,Shaanxi 712100,China；Research Center of Soil ＆ Water Conservation and Eco-environment Chinese Academy of Sciences,Yangling,Shaanxi 712100,China；Graduate School Chinese Academy of Sciences,Beijing 100049,China | | ZHANG Suiqi | State Key Laboratory of Soil Erosion and Dryland Farming of the Loess Plateau Institute of Soil and Water Conservation Northwest A ＆ F University,Yangling,Shaanxi 712100,China；Research Center of Soil ＆ Water Conservation and Eco-environment Chinese Academy of Sciences,Yangling,Shaanxi 712100,China | | YANG Xiaoqing | State Key Laboratory of Soil Erosion and Dryland Farming of the Loess Plateau Institute of Soil and Water Conservation Northwest A ＆ F University,Yangling,Shaanxi 712100,China；Research Center of Soil ＆ Water Conservation and Eco-environment Chinese Academy of Sciences,Yangling,Shaanxi 712100,China；Graduate School Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: |
| The original pressure probe has been evolved to four variants which are cell pressure probe for higher plant cells root pressure probe xylem pressure probe and sampling pressure probe. Nowadays the theory system of pressure probe technique is been formed and the technique is been extensively applied in plant physiology and other fields. It can be applied to investigate higher plant water relations at both cell and tissue level the interactions between water and solute flows the xylem tension the sampling of the contents of individual living higher plant cell and so on. In the future together with a suite of micro-analytical techniques it should have the potential to link quantitatively the traditionally separate areas of water relations and metabolism of individual higher plant cells. The xylem pressure probe would be further developed to widen the range of tensions to study and testify cohesion／tension mechanism. |
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