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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Arsenic volatilization by Aspergillus sp. and Penicillium sp. isolated from rice rhizosphere as a promising eco-safe tool for arsenic mitigation

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Soares Guimaraes, Leandro Henrique [1] ; Segura, Fabiana Roberta [1] ; Tonani, Ludmilla [2] ; von-Zeska-Kress, Marcia Regina [2] ; Rodrigues, Jairo Lisboa [3] ; Calixto, Leandro Augusto [4] ; Silva, Fabio Ferreira [1] ; Batista, Bruno Lemos [1]
Total Authors: 8
[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Ave Estados 5001, Bloco A 607-3, BR-09210580 Santo Andre, SP - Brazil
[2] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Ave Cafe S-N, BR-14040903 Ribeirao Preto, SP - Brazil
[3] Univ Fed Vales Jequitinhona & Mucuri, Inst Ciencia Engn & Tecnol, Rua Cruzeiro 01, BR-39803371 Teofilo Otoni, MG - Brazil
[4] Univ Fed Sao Paulo, Inst Ciencias Ambientais Quim & Farmaceut, Rua Sao Nicolau 210, BR-09913030 Diadema, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Journal of Environmental Management; v. 237, p. 170-179, MAY 1 2019.
Web of Science Citations: 0

Arsenic (As) is a non-threshold human carcinogenic. This element can be volatilized either by nature or anthropogenic sources. In the present study, the analytical performance of an As volatile species trapping system was evaluated to assess the As volatilization promoted by Penicillium sp. and Aspergillus sp., both isolated from rice rhizosphere, and Aspergillus niger sp. considered as a reference. The study was conducted for 60 days (sampling of volatile As species from 1st to 30th day and from 31st to 60th day). The efficiency of As-volatilization was associated with the fungal growth. The highest As volatilization occurred from 31st to 60th day. Penicillium sp., Aspergillus sp. and A. niger were capable of producing 57.8, 46.4, and 5.2% of volatile arsenic species, respectively. The speciation analysis has shown trimethylarsine (TMAs) as the main volatilized As-form, followed by mono- and dimethylarsine (MMAs and DMAs). The results are following the ``Challenger pathway{''}. Therefore, the tested fungi isolated from rice rhizosphere have shown promising properties concerning bio-volatilization with potential use for As-mitigation in paddy soils. (AU)

FAPESP's process: 15/06674-9 - Arsenic and rice: monitoring and studies of bioremediation for food safety
Grantee:Fabiana Roberta Segura
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 16/10060-9 - Multi-user equipment (MUE) approved in Grant FAPESP project 2014/05151-0: inductively coupled plasma mass spectrometer hyphenated to an high performance liquid chromatography (HPLC-ICP-MS)
Grantee:Bruno Lemos Batista
Support type: Multi-user Equipment Program
FAPESP's process: 14/05151-0 - Arsenic and rice: monitoring and (bio)remediation studies for food safety
Grantee:Bruno Lemos Batista
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 17/10104-9 - Arsenic and rice: monitoring and (bio)remediation studies for food safety
Grantee:Giovanna de Oliveira Costa
Support type: Scholarships in Brazil - Scientific Initiation