Mateo-Bonmatí, Eduardo and Casanova-Sáez, Rubén and Simura, Jan and Ljung, Karin
(2021).
Broadening the roles of UDP-glycosyltransferases in auxin homeostasis and plant development.
New Phytologist. 232
, 642-654
[Research article]
![[img]](https://pub.epsilon.slu.se/style/images/fileicons/application_pdf.png) |
PDF
2MB |
Abstract
The levels of the important plant growth regulator indole-3-acetic acid (IAA) are tightly controlled within plant tissues to spatiotemporally orchestrate concentration gradients that drive plant growth and development. Metabolic inactivation of bioactive IAA is known to participate in the modulation of IAA maxima and minima. IAA can be irreversibly inactivated by oxidation and conjugation to aspartate and glutamate. Usually overlooked because of its reversible nature, the most abundant inactive IAA form is the IAA-glucose (IAA-glc) conjugate. Glycosylation of IAA in Arabidopsis thaliana is reported to be carried out by UDP-glycosyltransferase 84B1 (UGT84B1), while UGT74D1 has been implicated in the glycosylation of the irreversibly formed IAA catabolite oxIAA. Here we demonstrated that both UGT84B1 and UGT74D1 modulate IAA levels throughout plant development by dual IAA and oxIAA glycosylation. Moreover, we identified a novel UGT subfamily whose members redundantly mediate the glycosylation of oxIAA and modulate skotomorphogenic growth.
| Authors/Creators: | Mateo-Bonmatí, Eduardo and Casanova-Sáez, Rubén and Simura, Jan and Ljung, Karin | ||||||
|---|---|---|---|---|---|---|---|
| Title: | Broadening the roles of UDP-glycosyltransferases in auxin homeostasis and plant development | ||||||
| Series Name/Journal: | New Phytologist | ||||||
| Year of publishing : | 2021 | ||||||
| Volume: | 232 | ||||||
| Page range: | 642-654 | ||||||
| Number of Pages: | 13 | ||||||
| Publisher: | WILEY | ||||||
| ISSN: | 0028-646X | ||||||
| Language: | English | ||||||
| Publication Type: | Research article | ||||||
| Article category: | Scientific peer reviewed | ||||||
| Version: | Published version | ||||||
| Copyright: | Creative Commons: Attribution-Noncommercial 4.0 | ||||||
| Full Text Status: | Public | ||||||
| Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Botany | ||||||
| Keywords: | Arabidopsis, auxin, indole-3-acetic acid (IAA), IAA-glucose, oxIAA-glucose, UDP-glycosyltransferases (UGT) | ||||||
| URN:NBN: | urn:nbn:se:slu:epsilon-p-113927 | ||||||
| Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-113927 | ||||||
| Additional ID: |
| ||||||
| ID Code: | 25646 | ||||||
| Faculty: | S - Faculty of Forest Sciences | ||||||
| Department: | (S) > Dept. of Forest Genetics and Plant Physiology | ||||||
| Deposited By: | SLUpub Connector | ||||||
| Deposited On: | 12 Oct 2021 14:25 | ||||||
| Metadata Last Modified: | 12 Oct 2021 14:31 |
Repository Staff Only: item control page
Relations
Relations