Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin
Glucosinolates (GLS) are a group of plant secondary metabolites mainly found in Cruciferous plants, share a core structure consisting of a β-thioglucose moiety and a sulfonated oxime, but differ by a variable side chain derived from one of the several amino acids. These compounds are hydrolyzed upon...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-12-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fpls.2017.02131/full |
| _version_ | 1819082273161478144 |
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| author | Siva K. Malka Youfa Cheng Youfa Cheng |
| author_facet | Siva K. Malka Youfa Cheng Youfa Cheng |
| author_sort | Siva K. Malka |
| collection | DOAJ |
| description | Glucosinolates (GLS) are a group of plant secondary metabolites mainly found in Cruciferous plants, share a core structure consisting of a β-thioglucose moiety and a sulfonated oxime, but differ by a variable side chain derived from one of the several amino acids. These compounds are hydrolyzed upon cell damage by thioglucosidase (myrosinase), and the resulting degradation products are toxic to many pathogens and herbivores. Human beings use these compounds as flavor compounds, anti-carcinogens, and bio-pesticides. GLS metabolism is complexly linked to auxin homeostasis. Indole GLS contributes to auxin biosynthesis via metabolic intermediates indole-3-acetaldoxime (IAOx) and indole-3-acetonitrile (IAN). IAOx is proposed to be a metabolic branch point for biosynthesis of indole GLS, IAA, and camalexin. Interruption of metabolic channeling of IAOx into indole GLS leads to high-auxin production in GLS mutants. IAN is also produced as a hydrolyzed product of indole GLS and metabolized to IAA by nitrilases. In this review, we will discuss current knowledge on involvement of GLS in auxin homeostasis. |
| first_indexed | 2024-12-21T20:14:03Z |
| format | Article |
| id | doaj.art-06ef01a986424f4abc884ca653a11d8f |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-21T20:14:03Z |
| publishDate | 2017-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-06ef01a986424f4abc884ca653a11d8f2022-12-21T18:51:39ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2017-12-01810.3389/fpls.2017.02131299558Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and AuxinSiva K. Malka0Youfa Cheng1Youfa Cheng2Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, ChinaSchool of Life Sciences, University of Chinese Academy of Sciences, Beijing, ChinaGlucosinolates (GLS) are a group of plant secondary metabolites mainly found in Cruciferous plants, share a core structure consisting of a β-thioglucose moiety and a sulfonated oxime, but differ by a variable side chain derived from one of the several amino acids. These compounds are hydrolyzed upon cell damage by thioglucosidase (myrosinase), and the resulting degradation products are toxic to many pathogens and herbivores. Human beings use these compounds as flavor compounds, anti-carcinogens, and bio-pesticides. GLS metabolism is complexly linked to auxin homeostasis. Indole GLS contributes to auxin biosynthesis via metabolic intermediates indole-3-acetaldoxime (IAOx) and indole-3-acetonitrile (IAN). IAOx is proposed to be a metabolic branch point for biosynthesis of indole GLS, IAA, and camalexin. Interruption of metabolic channeling of IAOx into indole GLS leads to high-auxin production in GLS mutants. IAN is also produced as a hydrolyzed product of indole GLS and metabolized to IAA by nitrilases. In this review, we will discuss current knowledge on involvement of GLS in auxin homeostasis.http://journal.frontiersin.org/article/10.3389/fpls.2017.02131/fullglucosinolateauxinmetabolismdevelopmentArabidopsis |
| spellingShingle | Siva K. Malka Youfa Cheng Youfa Cheng Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin Frontiers in Plant Science glucosinolate auxin metabolism development Arabidopsis |
| title | Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin |
| title_full | Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin |
| title_fullStr | Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin |
| title_full_unstemmed | Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin |
| title_short | Possible Interactions between the Biosynthetic Pathways of Indole Glucosinolate and Auxin |
| title_sort | possible interactions between the biosynthetic pathways of indole glucosinolate and auxin |
| topic | glucosinolate auxin metabolism development Arabidopsis |
| url | http://journal.frontiersin.org/article/10.3389/fpls.2017.02131/full |
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