| Title: | Under fungal attack on a metalliferous soil: ROS or not ROS? Insights from Silene paradoxa L. growing under copper stress |
| Author(s): | Taiti C; Giorni E; Colzi I; Pignattelli S; Bazihizina N; Buccianti A; Luti S; Pazzagli L; Mancuso S; Gonnelli C; |
| Address: | "Department of Agri-Food and Environmental Science, Universita di Firenze, via delle Idee 30, 50019, Sesto Fiorentino, Italy. Electronic address: cosimo.taiti@unifi.it. Department of Biology, Universita di Firenze, via Micheli 1, 50121, Firenze, Italy. Electronic address: elisabetta.giorni@unifi.it. Department of Biology, Universita di Firenze, via Micheli 1, 50121, Firenze, Italy. Electronic address: ilaria.colzi@unifi.it. Department of Biology, Universita di Firenze, via Micheli 1, 50121, Firenze, Italy. Electronic address: sara.pignattelli@gmail.it. Department of Agri-Food and Environmental Science, Universita di Firenze, via delle Idee 30, 50019, Sesto Fiorentino, Italy. Electronic address: nadia.bazihizina@unifi.it. Department of Earth Science, Universita di Firenze, via La Pira 4, 50121, Firenze, Italy. Electronic address: antonella.buccianti@unifi.it. Department of Biomedical Experimental and Clinical Sciences, Universita di Firenze, viale Morgagni 50, 50134, Firenze, Italy. Electronic address: simone.luti@unifi.it. Department of Biomedical Experimental and Clinical Sciences, Universita di Firenze, viale Morgagni 50, 50134, Firenze, Italy. Electronic address: uigia.pazzagli@unifi.it. Department of Agri-Food and Environmental Science, Universita di Firenze, via delle Idee 30, 50019, Sesto Fiorentino, Italy. Electronic address: stefano.mancuso@unifi.it. Department of Biology, Universita di Firenze, via Micheli 1, 50121, Firenze, Italy. Electronic address: cristina.gonnelli@unifi.it" |
| DOI: | 10.1016/j.envpol.2015.12.020 |
| ISSN/ISBN: | 1873-6424 (Electronic) 0269-7491 (Linking) |
| Abstract: | "We investigated how the adaptation to metalliferous environments can influence the plant response to biotic stress. In a metallicolous and a non-metallicolous population of Silene paradoxa the induction of oxidative stress and the production of callose and volatiles were evaluated in the presence of copper and of the PAMP fungal protein cerato-platanin, separately and in combination. Our results showed incompatibility between the ordinary ROS-mediated response to fungal attack and the acquired mechanisms of preventing oxidative stress in the tolerant population. A similar situation was also demonstrated by the sensitive population growing in the presence of copper but, in this case, with a lack of certain responses, such as callose production. In addition, in terms of the joint behaviour of emitted volatiles, multivariate statistics showed that not only did the populations respond differently to the presence of copper or biotic stress, but also that the biotic and abiotic stresses interacted in different ways in the two populations. Our results demonstrated that the same incompatibility of hyperaccumulators in ROS-mediated biotic stress signals also seemed to be exhibited by the excluder metallophyte, but without the advantage of being able to rely on the elemental defence for plant protection from natural enemies" |
| Keywords: | "Adaptation, Physiological Copper/*metabolism/toxicity Fungal Proteins/metabolism Fungi/*metabolism Glucans/metabolism Hydrogen Peroxide/metabolism Malondialdehyde/metabolism Oxidative Stress Reactive Oxygen Species/*metabolism Silene/*metabolism Soil Poll;" |
| Notes: | "MedlineTaiti, Cosimo Giorni, Elisabetta Colzi, Ilaria Pignattelli, Sara Bazihizina, Nadia Buccianti, Antonella Luti, Simone Pazzagli, Luigia Mancuso, Stefano Gonnelli, Cristina eng England 2016/01/23 Environ Pollut. 2016 Mar; 210:282-92. doi: 10.1016/j.envpol.2015.12.020. Epub 2016 Jan 20" |
