Hill, P W <br/><br/>
Leaf age-related differences in apoplastic NH(4)(+) concentration, pH and the NH(3) compensation point for a wild perennial.  [electronic resource] 

 -  Journal of experimental botany  Feb 2002 
 - 277-86 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0022-0957 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ammonia--metabolism<br/>Cytoplasm--chemistry<br/>Extracellular Space--chemistry<br/>Hydrogen-Ion Concentration<br/>Magnoliopsida--chemistry<br/>Models, Biological<br/>Nitrogen--metabolism<br/>Photosynthesis--physiology<br/>Plant Leaves--chemistry<br/>Quaternary Ammonium Compounds--metabolism<br/>Time Factors