Plant Growth Promoting Rhizobacteria (PGPR) Activity on Arundo Donax (L.) Cuttings and First Assessments in Presence of Copper
| Autor: | Di Mattia, E., Franchi, F., Beni, C., Santangelo, E. |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| DOI: | 10.5071/29theubce2021-1dv.5.7 |
| Popis: | Plant Growth Promoting Rhizobacteria (PGPR) can have a beneficial influence on plant physiology as nitrogen assimilation or photosynthesis or stress tolerance. This, in turn, may enhance biomass productivity, a key characteristic of energy crops. The present study aimed at analyzing the PGPR/Arundo interaction and making a first analysis of the interaction in presence of copper (Cu) at 150 ppm. The PGPR strain used was Pseudomonas fluorescens 15A. Rooted cuttings of Arundo were grown on batches of axenic “soilless” substrate of perlite. The results emphasized the compatibility of P. fluorescens 15 A with Arundo inducing morphometric responses compatible with a phyto-stimulant action. Compared to the contaminated control, the inoculated and contaminated plants showed a 50% reduction of Cu present in the aerial portion. This suggests significant adsorption of the metal onto the bacterial biofilm of the rhizoplane. Moreover, the presence of the strain 15A did not alter the assimilation of P and K after the contamination. The perspective for the applicative use of P. fluorescens 15 A to stimulate the growth of Arundo and to reduce the Cu phytotoxicity appear attractive. Proceedings of the 29th European Biomass Conference and Exhibition, 26-29 April 2021, Online, pp. 330-334 |
| Databáze: | OpenAIRE |
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