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        Summary 
        
         
          
           | Description | 
           The Yang cycle is shown. Plants use this pathway to synthesize ethylene. The picture has been generated using the following sources:  Buchanan BB, Gruissem W, Jones RL (2000). Biochemistry and Molecular Biology of Plants. American Society of Plant Physiologists (Rockville).  Wang K C-L, Li H, Ecker JR (2002). Ethylene Biosynthesis and Signalling Networks. Plant Cell (Supplement) S131-S151 | 
          
          
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           | Source | 
           Own work | 
          
          
           | Author | 
            Crenim | 
          
         
         
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             Permission is granted to copy, distribute and/or modify this document under the terms of the  GNU Free Documentation License, Version 1.2 or any later version published by the  Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled  GNU Free Documentation License.  http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue 
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