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The auxins, IAA and PAA, are synthesized by similar steps catalyzed by different enzymes.
Plant Signal Behav. 2016 11; 11(11):e1250993.PS

Abstract

One of the fundamental plant growth substances, indole-3-acetic acid (IAA), belongs to a class of phytohormones known as auxins. The main IAA biosynthesis pathway involves the conversion of tryptophan to indole-3-pyruvic acid, which is in turn converted to IAA. The two enzymes responsible for these conversions, members of the TAA1 and YUCCA gene families, respectively, have recently been implicated in the synthesis of another auxin, phenylacetic acid (PAA). While there is some evidence to support this theory, there are also some concerns. Here we address the question: to what extent does the TAA1/YUCCA system contribute to the biosynthesis of PAA? In addition, we highlight the importance of measuring auxin metabolites and conjugates in addressing such questions.

Authors+Show Affiliations

a School of Biological Sciences , University of Tasmania , Sandy Bay , Tasmania , Australia.a School of Biological Sciences , University of Tasmania , Sandy Bay , Tasmania , Australia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27808586

Citation

Cook, Sam D., and John J. Ross. "The Auxins, IAA and PAA, Are Synthesized By Similar Steps Catalyzed By Different Enzymes." Plant Signaling & Behavior, vol. 11, no. 11, 2016, pp. e1250993.
Cook SD, Ross JJ. The auxins, IAA and PAA, are synthesized by similar steps catalyzed by different enzymes. Plant Signal Behav. 2016;11(11):e1250993.
Cook, S. D., & Ross, J. J. (2016). The auxins, IAA and PAA, are synthesized by similar steps catalyzed by different enzymes. Plant Signaling & Behavior, 11(11), e1250993.
Cook SD, Ross JJ. The Auxins, IAA and PAA, Are Synthesized By Similar Steps Catalyzed By Different Enzymes. Plant Signal Behav. 2016;11(11):e1250993. PubMed PMID: 27808586.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The auxins, IAA and PAA, are synthesized by similar steps catalyzed by different enzymes. AU - Cook,Sam D, AU - Ross,John J, PY - 2016/11/4/pubmed PY - 2017/10/14/medline PY - 2016/11/4/entrez KW - Aminotransferase KW - amino acid KW - biosynthesis KW - metabolism KW - phytohormone SP - e1250993 EP - e1250993 JF - Plant signaling & behavior JO - Plant Signal Behav VL - 11 IS - 11 N2 - One of the fundamental plant growth substances, indole-3-acetic acid (IAA), belongs to a class of phytohormones known as auxins. The main IAA biosynthesis pathway involves the conversion of tryptophan to indole-3-pyruvic acid, which is in turn converted to IAA. The two enzymes responsible for these conversions, members of the TAA1 and YUCCA gene families, respectively, have recently been implicated in the synthesis of another auxin, phenylacetic acid (PAA). While there is some evidence to support this theory, there are also some concerns. Here we address the question: to what extent does the TAA1/YUCCA system contribute to the biosynthesis of PAA? In addition, we highlight the importance of measuring auxin metabolites and conjugates in addressing such questions. SN - 1559-2324 UR - https://www.unboundmedicine.com/medline/citation/27808586/The_auxins_IAA_and_PAA_are_synthesized_by_similar_steps_catalyzed_by_different_enzymes_ DB - PRIME DP - Unbound Medicine ER -