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Istituto sull'inquinamento atmosferico

Torna all'elenco Contributi in atti di convegno anno 2017

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Tipo: Presentazione

Titolo: Development of Smart Nanofibrous Plant Growth Promoting Rhizobacteria (PGPR) Biofilms for Agricultural Applications

Anno di pubblicazione: 2017

Formato: Elettronico

Autori: Fabrizio De Cesare, Elena Di Mattia and Antonella Macagnano

Affiliazioni autori: DIBAF-Università degli Studi della Tuscia di Viterbo, Italy DAFNE-Università degli Studi della Tuscia di Viterbo, Italy IIA-CNR, Monterotondo (RM), Italy

Autori CNR:

  • FABRIZIO DE CESARE
  • ANTONELLA MACAGNANO

Lingua: inglese

Abstract: Industries in the agri-food sector have been investing large amounts of funds in the last decades in developing agrochemicals to improve crop yields to match the nutritional needs of an increasing world population. Unfortunately, the application of agrochemicals associated to the negative impacts of other agricultural practices (e.g. tillage) has been causing serious damages to ecosystems and human health. The development of more environmentally friendly products (e.g. biofertilisers, biostimulants, biopesticides) to prevent nutrient deficiencies and pest- and pathogen-induced diseases in plants is still far to provide the expected results. Microbial populations are known to interact with plants to support their growth and increase their resistance to pathogen infections [1]. Bacteria in ecosystems (e.g. soil) prefer to live in organised structures associated to surfaces termed biofilms [2], which are capable of resisting to nutrient-deficient conditions, antimicrobial agents and environmental stresses [2]. Electrospinning is a powerful technology capable of creating 2D and 3D nanofibrous scaffolds which can also be employed for cell growth (fuel cells and tissue engineering) [3,4]. The goal of this study was to create at first an electrospun nanofibrous scaffold suitable for growing a bacterial strain selectively isolated for the capacity of supporting plant growth (PGPR activities). The development of a proper biofilm on the electrospun nanofabric was then investigated and monitored over an 11 day-period, through the different phases of adhesion, growth and detaching. The bacterial population of the nanotechnological biofilm was tested for viability and respiration and for the development of typical plant growth promotion physiological traits over the incubation period. The nanofibrous agri-tool was then validated in laboratory tests on plants. The maintenance of biofilm viability and activities was finally assessed in mid- and long-term experiments (2 and 7 months respectively), i.e. compatible with storage periods for commercialisation and agronomic managements. Results of the tests are here discussed.

Lingua abstract: inglese

Pagine da: INV23

Titolo del volume: ElectrospinCY2017- Book of Abstract

Referee: Sì: Internazionale

Stato della pubblicazione: Published version

Parole chiave:

  • electrospinning
  • soil
  • agriculture
  • microorganisms
  • smart nanomaterials

Congresso nome: ELECTROSPINNING: FROM DESIGN AND PROCESSING TO ADVANCED NANOMATERIALS AND APPLICATIONS

Congresso luogo: University of Cyprus, Nicosia (Cyprus)

Congresso data: 19-21/04/2017

Congresso rilevanza: Internazionale

Congresso relazione: Su invito

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