| Title: | Interspecies-cooperations of abutilon theophrasti with root colonizing microorganisms disarm BOA-OH allelochemicals |
| Author(s): | Schulz M; Sicker D; Schackow O; Hennig L; Yurkov A; Siebers M; Hofmann D; Disko U; Ganimede C; Mondani L; Tabaglio V; Marocco A; |
| Address: | "a IMBIO Institute of Molecular Physiology and Biotechnology of Plants , University of Bonn , Bonn , Germany. b Institut fur Organische Chemie , Universitat Leipzig , Leipzig , Germany. c DSMZ Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH , Braunschweig , Germany. d IBG-3: Agrossphare , Forschungszentrum Julich GmbH , Julich , Germany. e Institute of Agronomy, Genetics and Field Crops , Universita Cattolica del Sacro Cuore , Piacenza , Italy" |
| DOI: | 10.1080/15592324.2017.1358843 |
| ISSN/ISBN: | 1559-2324 (Electronic) 1559-2316 (Print) 1559-2316 (Linking) |
| Abstract: | "A facultative, microbial micro-community colonizing roots of Abutilon theophrasti Medik. supports the plant in detoxifying hydroxylated benzoxazolinones. The root micro-community is composed of several fungi and bacteria with Actinomucor elegans as a dominant species. The yeast Papiliotrema baii and the bacterium Pantoea ananatis are actively involved in the detoxification of hydroxylated benzoxazolinones by generating H(2)O(2). At the root surface, laccases, peroxidases and polyphenol oxidases cooperate for initiating polymerization reactions, whereby enzyme combinations seem to differ depending on the hydroxylation position of BOA-OHs. A glucosyltransferase, able to glucosylate the natural benzoxazolinone detoxification intermediates BOA-5- and BOA-6-OH, is thought to reduce oxidative overshoots by damping BOA-OH induced H(2)O(2) generation. Due to this detoxification network, growth of Abutilon theophrasti seedlings is not suppressed by BOA-OHs. Polymer coats have no negative influence. Alternatively, quickly degradable 6-hydroxy-5-nitrobenzo[d]oxazol-2(3H)-one can be produced by the micro-community member Pantoea ananatis at the root surfaces. The results indicate that Abutilon theophrasti has evolved an efficient strategy by recruiting soil microorganisms with special abilities for different detoxification reactions which are variable and may be triggered by the allelochemical s structure and by environmental conditions" |
| Keywords: | "Benzoxazoles/chemistry/*pharmacology Catalase/metabolism Chromatography, High Pressure Liquid Glucosides/metabolism Hydrogen Peroxide/metabolism Hydroxylation Isomerism Malvaceae/*microbiology Pheromones/chemistry/*pharmacology Plant Extracts/chemistry Pl;" |
| Notes: | "MedlineSchulz, Margot Sicker, Dieter Schackow, Oliver Hennig, Lothar Yurkov, Andrey Siebers, Meike Hofmann, Diana Disko, Ulrich Ganimede, Cristina Mondani, Letizia Tabaglio, Vincenzo Marocco, Adriano eng 2017/08/09 Plant Signal Behav. 2017 Aug 3; 12(8):e1358843. doi: 10.1080/15592324.2017.1358843. Epub 2017 Aug 8" |
