An Arabidopsis thaliana copper-sensitive mutant suggests a role of phytosulfokine in ethylene production
© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology.
| Publié dans: | Journal of experimental botany. - 1985. - 66(2015), 13 vom: 23. Juli, Seite 3657-67 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2015
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| Accès à la collection: | Journal of experimental botany |
| Sujets: | Journal Article Research Support, Non-U.S. Gov't Cu PSK TPST. deficiency ethylene root elongation Arabidopsis Proteins Ethylenes plus... |
| Résumé: | © The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. To increase our understanding of the adaptation for copper (Cu) deficiency, Arabidopsis mutants with apparent alterations under Cu deficiency were identified. In this report, a novel mutant, tpst-2, was found to be more sensitive than wild-type (Col-0) plants to Cu deficiency during root elongation. The positional cloning of tpst-2 revealed that this gene encodes a tyrosylprotein sulfotransferase (TPST). Moreover, the ethylene production of tpst-2 mutant was higher than that of Col-0 under Cu deficiency, and adding the ethylene response inhibitor AgNO3 partially rescued defects in root elongation. Interestingly, peptide hormone phytosulfokine (PSK) treatment also repressed the ethylene production of tpst-2 mutant plants. Our results revealed that TPST suppressed ethylene production through the action of PSK |
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| Description: | Date Completed 28.03.2016 Date Revised 13.11.2018 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1460-2431 |
| DOI: | 10.1093/jxb/erv105 |