Year: 2019
Type: article
Abstract: -responsive genes and enhancing tolerance to photooxidative stress. Here, we show that β-CC is converted into water-soluble β-cyclocitric acid (β-CCA) in leaves. This metabolite is a signal that enhances plant tolerance to drought by a mechanism different from known responses such as stomatal closure, osmotic potential adjustment, and jasmonate signaling. This action of β-CCA is a conserved mechanism, being observed in various plant species, and it does not fully overlap with the β-CC-dependent signaling, indicating that β-CCA induces only a branch of β-CC signaling. Overexpressing SCARECROW-LIKE14 (SCL14, a regulator of xenobiotic detoxification) increased drought tolerance and potentiated the protective effect of β-CCA, showing the involvement of the SCL14-dependent detoxification in the phenomenon. β-CCA is a bioactive apocarotenoid that could potentially be used to protect crop plants against drought.
Source: iScience
Institutions: Centre National de la Recherche Scientifique, Aix-Marseille Université, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA Cadarache, Institut de Biosciences et Biotechnologies, Biologie Végétale et de Microbiologie Environnementales, Institut de Biosciences et biotechnologies d'Aix-Marseille
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $2,793
Awards: G1590389948, G459516591, G617807633, Development of improved perennial non-food biomass and bioproduct crops for water stressed environments, Signaling of light-induced oxidative stress in the acclimation mechanisms of plants to climatic changes, G7986339905, On the Regulation of Carbonic anhydrase Activity and the COS and CO18O fluxes in terrestrial ecosystems
OpenAlex ID: W2964794846