The Apocarotenoid Zaxinone Is a Positive Regulator of Strigolactone and Abscisic Acid Biosynthesis in Arabidopsis Roots.
abscisic acid
apocarotenoid
carotenoid
growth regulator
phytohormones
strigolactone
zaxinone
Journal
Frontiers in plant science
ISSN: 1664-462X
Titre abrégé: Front Plant Sci
Pays: Switzerland
ID NLM: 101568200
Informations de publication
Date de publication:
2020
2020
Historique:
received:
09
12
2019
accepted:
17
04
2020
entrez:
2
6
2020
pubmed:
2
6
2020
medline:
2
6
2020
Statut:
epublish
Résumé
Carotenoids are ubiquitous precursors of important metabolites including hormones, such as strigolactones (SLs) and abscisic acid (ABA), and signaling and regulatory molecules, such as the recently discovered zaxinone. Strigolactones and ABA are key regulators of plant growth and development, adaptation to environmental changes and response to biotic and abiotic stress. Previously, we have shown that zaxinone, an apocarotenoid produced in rice by the enzyme zaxinone synthase (ZAS) that is common in mycorrhizal plants, is required for normal rice growth and development, and a negative regulator of SL biosynthesis. Zaxinone is also formed in Arabidopsis, which lacks ZAS, via an unknown route. In the present study, we investigated the biological activity of zaxinone in Arabidopsis, focusing on its effect on SL and ABA biosynthesis. For this purpose, we quantified the content of both hormones and determined the levels of related transcripts in Arabidopsis (
Identifiants
pubmed: 32477389
doi: 10.3389/fpls.2020.00578
pmc: PMC7240130
doi:
Types de publication
Journal Article
Langues
eng
Pagination
578Informations de copyright
Copyright © 2020 Ablazov, Mi, Jamil, Jia, Wang, Feng and Al-Babili.
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