Detailed Information on Publication Record
2021
Bioleaching of Manganese Oxides at Different Oxidation States by Filamentous Fungus Aspergillus niger
FARKAS, Bence, Marek BUJDOŠ, Filip POLÁK, Michaela MATULOVÁ, Martin CESNEK et. al.Basic information
Original name
Bioleaching of Manganese Oxides at Different Oxidation States by Filamentous Fungus Aspergillus niger
Authors
FARKAS, Bence (703 Slovakia), Marek BUJDOŠ (703 Slovakia), Filip POLÁK (203 Czech Republic), Michaela MATULOVÁ (300 Greece), Martin CESNEK (703 Slovakia), Eva DUBORSKÁ (703 Slovakia), Ondřej ZVĚŘINA (203 Czech Republic, belonging to the institution), Hyunjung KIM (410 Republic of Korea), Martin DANKO (703 Slovakia), Zuzana KISOVÁ (703 Slovakia), P. MATÚŠ and Martin URÍK (703 Slovakia, guarantor)
Edition
Journal of Fungi, Basel, MDPI, 2021, 2309-608X
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10612 Mycology
Country of publisher
Switzerland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.724
RIV identification code
RIV/00216224:14110/21:00122495
Organization unit
Faculty of Medicine
UT WoS
000726354500001
Keywords in English
bioextraction; bioleaching; filamentous fungi; manganese oxide; oxalate
Tags
International impact, Reviewed
Změněno: 1/2/2022 10:30, Mgr. Tereza Miškechová
Abstract
V originále
This work aimed to examine the bioleaching of manganese oxides at various oxidation states (MnO, MnO·Mn2O3, Mn2O3 and MnO2) by a strain of the filamentous fungus Aspergillus niger, a frequent soil representative. Our results showed that the fungus effectively disintegrated the crystal structure of selected mineral manganese phases. Thereby, during a 31-day static incubation of oxides in the presence of fungus, manganese was bioextracted into the culture medium and, in some cases, transformed into a new biogenic mineral. The latter resulted from the precipitation of extracted manganese with biogenic oxalate. The Mn(II,III)-oxide was the most susceptible to fungal biodeterioration, and up to 26% of the manganese content in oxide was extracted by the fungus into the medium. The detected variabilities in biogenic oxalate and gluconate accumulation in the medium are also discussed regarding the fungal sensitivity to manganese. These suggest an alternative pathway of manganese oxides’ biodeterioration via a reductive dissolution. There, the oxalate metabolites are consumed as the reductive agents. Our results highlight the significance of fungal activity in manganese mobilization and transformation. The soil fungi should be considered an important geoactive agent that affects the stability of natural geochemical barriers.