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dc.contributor.authorSpinedi, Nahuel
dc.contributor.authorAranda Ballesteros, Elisabet
dc.identifier.citationSpinedi, N... [et al.]. ROS-Scavenging Enzymes as an Antioxidant Response to High Concentration of Anthracene in the Liverwort Marchantia polymorpha L. Plants 2021, 10, 1478. []es_ES
dc.descriptionThis study was financed by CONICET Argentina (PIP0235), Comahue-University (PIN II 04B216), Agencia I+D+i (PICT2017-1484, PICT2018-00650, PICT-2019-00073) and "Fondo Conjunto Uruguay-Mexico" (AUCI-AMEXCID). EA thanks the Ministry of Economy and Competitiveness and the ERDF for co-funding through the "Ramon y Cajal Contract" (grant number RYC-2013-12481).es_ES
dc.description.abstractMarchantia polymorpha L. responds to environmental changes using a myriad set of physiological responses, some unique to the lineage related to the lack of a vascular- and root-system. This study investigates the physiological response of M. polymorpha to high doses of anthracene analysing the antioxidant enzymes and their relationship with the photosynthetic processes, as well as their transcriptomic response. We found an anthracene dose-dependent response reducing plant biomass and associated to an alteration of the ultrastructure of a 23.6% of chloroplasts. Despite a reduction in total thallus-chlorophyll of 31.6% of Chl a and 38.4% of Chl b, this was not accompanied by a significant change in the net photosynthesis rate and maximum quantum efficiency (Fv/Fm). However, we found an increase in the activity of main ROS-detoxifying enzymes of 34.09% of peroxidase and 692% of ascorbate peroxidase, supported at transcriptional level with the upregulation of ROS-related detoxifying responses. Finally, we found that M. polymorpha tolerated anthracene-stress under the lowest concentration used and can suffer physiological alterations under higher concentrations tested related to the accumulation of anthracene within plant tissues. Our results show that M. polymorpha under PAH stress condition activated two complementary physiological responses including the activation of antioxidant mechanisms and the accumulation of the pollutant within plant tissues to mitigate the damage to the photosynthetic apparatus.es_ES
dc.description.sponsorshipConsejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET) PIP0235es_ES
dc.description.sponsorshipComahue-University PIN II 04B216es_ES
dc.description.sponsorshipAgencia I+D+i PICT2017-1484 PICT2018-00650 PICT-2019-00073es_ES
dc.description.sponsorship"Fondo Conjunto Uruguay-Mexico" (AUCI-AMEXCID)es_ES
dc.description.sponsorshipEuropean Commission RYC-2013-12481es_ES
dc.description.sponsorshipMinistry of Economy and Competitiveness RYC-2013-12481es_ES
dc.rightsAtribución 3.0 España*
dc.subjectAntioxidant enzymeses_ES
dc.subjectPolycyclic aromatic hydrocarbonses_ES
dc.subjectPhotosynthesis es_ES
dc.titleROS-Scavenging Enzymes as an Antioxidant Response to High Concentration of Anthracene in the Liverwort Marchantia polymorpha L.es_ES

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Atribución 3.0 España
Except where otherwise noted, this item's license is described as Atribución 3.0 España