Auxin metabolism rates and implications for plant development
Studies of auxin metabolism rarely express their results as a metabolic rate, although the data obtained would often permit such a calculation to be made. We analyze data from 31 previously published papers to quantify the rates of auxin biosynthesis, conjugation, conjugate hydrolysis, and catabolis...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2015-03-01
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| Series: | Frontiers in Plant Science |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00150/full |
| _version_ | 1818589984839434240 |
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| author | Eric M Kramer Ethan M. Ackelsberg |
| author_facet | Eric M Kramer Ethan M. Ackelsberg |
| author_sort | Eric M Kramer |
| collection | DOAJ |
| description | Studies of auxin metabolism rarely express their results as a metabolic rate, although the data obtained would often permit such a calculation to be made. We analyze data from 31 previously published papers to quantify the rates of auxin biosynthesis, conjugation, conjugate hydrolysis, and catabolism in seed plants. Most metabolic pathways have rates in the range 10 nM/h to 1 μM/h, with the exception of auxin conjugation, which has rates as high as ~100 μM/h. The highest rates of auxin conjugation suggests that auxin metabolic sinks may be very small, perhaps as small as a single cell. By contrast, the relatively low rate of auxin biosynthesis requires plants to conserve and recycle auxin during long-distance transport. The consequences for plant development are discussed. |
| first_indexed | 2024-12-16T09:49:20Z |
| format | Article |
| id | doaj.art-2684a9d7bd844a36be2decaf25a5b270 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-16T09:49:20Z |
| publishDate | 2015-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-2684a9d7bd844a36be2decaf25a5b2702022-12-21T22:36:07ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2015-03-01610.3389/fpls.2015.00150132245Auxin metabolism rates and implications for plant developmentEric M Kramer0Ethan M. Ackelsberg1Bard College at Simon's RockBard College at Simon's RockStudies of auxin metabolism rarely express their results as a metabolic rate, although the data obtained would often permit such a calculation to be made. We analyze data from 31 previously published papers to quantify the rates of auxin biosynthesis, conjugation, conjugate hydrolysis, and catabolism in seed plants. Most metabolic pathways have rates in the range 10 nM/h to 1 μM/h, with the exception of auxin conjugation, which has rates as high as ~100 μM/h. The highest rates of auxin conjugation suggests that auxin metabolic sinks may be very small, perhaps as small as a single cell. By contrast, the relatively low rate of auxin biosynthesis requires plants to conserve and recycle auxin during long-distance transport. The consequences for plant development are discussed.http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00150/fullauxin biosynthesisGH3 familyAuxin conjugationYUCCA familyTAA1oxIAA |
| spellingShingle | Eric M Kramer Ethan M. Ackelsberg Auxin metabolism rates and implications for plant development Frontiers in Plant Science auxin biosynthesis GH3 family Auxin conjugation YUCCA family TAA1 oxIAA |
| title | Auxin metabolism rates and implications for plant development |
| title_full | Auxin metabolism rates and implications for plant development |
| title_fullStr | Auxin metabolism rates and implications for plant development |
| title_full_unstemmed | Auxin metabolism rates and implications for plant development |
| title_short | Auxin metabolism rates and implications for plant development |
| title_sort | auxin metabolism rates and implications for plant development |
| topic | auxin biosynthesis GH3 family Auxin conjugation YUCCA family TAA1 oxIAA |
| url | http://journal.frontiersin.org/Journal/10.3389/fpls.2015.00150/full |
| work_keys_str_mv | AT ericmkramer auxinmetabolismratesandimplicationsforplantdevelopment AT ethanmackelsberg auxinmetabolismratesandimplicationsforplantdevelopment |