The shifting paradigms of auxin biosynthesis

Nathan D Tivendale, John J. Ross, Jerry D Cohen

Research output: Contribution to journalReview articlepeer-review

121 Scopus citations


Auxins are an important group of hormones found in all land plants and several soil-dwelling microbes. Although auxin was the first phytohormone identified, its biosynthesis remained unclear until recently. In the past few years, our understanding of auxin biosynthesis has improved dramatically, to the stage where many believe there is a single predominant pathway in Arabidopsis (Arabidopsis thaliana L.). However, there is still uncertainty over the applicability of these findings to other plant species. Indeed, it appears that in certain organs of some species, other pathways can operate. Here we review the key advances that have led to our current understanding of auxin biosynthesis and its many proposed pathways.

Original languageEnglish (US)
Pages (from-to)44-51
Number of pages8
JournalTrends in Plant Science
Issue number1
StatePublished - Jan 2014

Bibliographical note

Funding Information:
We thank the National Science Foundation and the Australian Research Council for their financial support.


  • Auxin
  • Biosynthesis
  • Indole-3-acetic acid
  • Indole-3-pyruvic acid


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