RESEARCH ARTICLE


Pyrene and Chrysene Tolerance and Biodegradation Capability of Pleurotus Sajor-Caju



Giuliano Saiu1, Stefania Tronci1, *, Massimiliano Grosso1, Enzo Cadoni3, Nicoletta Curreli2
1 Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, i.e.Marengo 2, 09123 Cagliari, Italy
2 Dipartimento di Scienze Biomediche, Unità di Biochimica, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy
3 Dipartimento di Scienze Chimiche e Geologiche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato, Cagliari, Italy


Article Metrics

CrossRef Citations:
0
Total Statistics:

Full-Text HTML Views: 1480
Abstract HTML Views: 1110
PDF Downloads: 513
ePub Downloads: 386
Total Views/Downloads: 3489
Unique Statistics:

Full-Text HTML Views: 699
Abstract HTML Views: 561
PDF Downloads: 334
ePub Downloads: 194
Total Views/Downloads: 1788



© 2018 Saiu et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università degli Studi di Cagliari, i.e.Marengo 2, 09123 Cagliari; Tel: +39 070 6755050; Fax: +39 070 6755067; E-mail: stefania.tronci@dimcm.unica.it


Abstract

Introduction:

The present work focused on the biodegradation capability of a white-rot fungus, the Pleurotus sajor-caju, when exposed to polycyclic aromatic hydrocarbons.

Methods:

The research was carried out by using in vitro systems developed on Petri dishes, to evaluate the fungal tolerance to pyrene and chrysene, followed by experiments in liquid medium. The first experimental campaign was necessary to evaluate the conditions promoting fungal growth and tolerance (presence of surfactants, peptone, copper sulphate and lecithin) and it was designed and analysed using statistical techniques.

Results:

It was found that the fungal population growth is strongly inhibited by chrysene presence. On the other hand, pyrene had a mild negative impact on the mycelia growth, which seemed to be positively influenced by the presence of Tween 80 and copper sulphate. Starting from these results, the behaviour of Pleurotus sajor-caju in presence of pyrene was investigated in liquid medium. Results showed that the depletion of pyrene was evident during a period of 20 days, and removal efficiency was greater than 90%.

Keywords: Bioremediation, PAH, Whiterot fungi, DOE, Carcinogenic, Pleurotus sajor-caju.