Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/23806
Title: | Native rhizobia from Zn mining soil promote the growth of Leucaena leucocephala on contaminated soil | Authors: | Rangel, Wesley M. THIJS, Sofie JANSSEN, Jolien Oliveira Longatti, Silvia M. Bonaldi, Daiane S. Ribeiro, Paula R. A. JAMBON, Inge EEVERS, Nele WEYENS, Nele VANGRONSVELD, Jaco Moreira, Fatima M. S. |
Issue Date: | 2017 | Publisher: | TAYLOR & FRANCIS INC | Source: | INTERNATIONAL JOURNAL OF PHYTOREMEDIATION, 19(2), p. 142-156 | Abstract: | Plants on contaminated mining soils often show a reduced growth due to nutrient depletion as well as trace elements (TEs) toxicity. Since those conditions threat plant's survival, plant growth-promoting rhizobacteria (PGPRs), such as rhizobia, might be of crucial importance for plant colonization on TE-contaminated soils. Native rhizobia from mining soils are promising candidates for bioaugmented phytoremediation of those soils as they are adapted to the specific conditions. In this work, rhizobia from Zn-and Cd-contaminated mining soils were in vitro screened for their PGP features [organic acids, indole-3-acetic acid (IAA), and siderophore (SID) production; 1-aminocyclopropane-1-carboxylate (ACC) deaminase activity; and Ca-3(PO4)(2) solubilization] and Zn and Cd tolerance. In addition, some type and reference rhizobia strains were included in the study as well. The in vitro screening indicated that rhizobia and other native genera have great potential for phytoremediation purposes, by exerting, besides biological N-2 fixation, other plant growth-promoting traits. Leucaena leucocephala-Mesorhizobium sp. (UFLA 01-765) showed multielement tolerance and an efficient symbiosis on contaminated soil, decreasing the activities of antioxidative enzymes in shoots. This symbiosis is a promising combination for phytostabilization. | Notes: | [Rangel, Wesley M.] Fed Univ Lavras UFLA, Dept Biol, Lavras, MG, Brazil. [Rangel, Wesley M.; Oliveira Longatti, Silvia M.; Bonaldi, Daiane S.; Ribeiro, Paula R. A.; Moreira, Fatima M. S.] Fed Univ Lavras UFLA, Soil Sci Dept, BR-37200000 Lavras, MG, Brazil. [Rangel, Wesley M.; Thijs, Sofie; Janssen, Jolien; Jambon, Inge; Eevers, Nele; Weyens, Nele; Vangronsveld, Jaco] Hasselt Univ, Ctr Environm Sci, Diepenbeek, Belgium. | Keywords: | leguminous plants; biological N2 fixation; plant growth promoting; symbiotic bacteria;Leguminous plants; biological N2 fixation; plant growth promoting; symbiotic bacteria | Document URI: | http://hdl.handle.net/1942/23806 | ISSN: | 1522-6514 | e-ISSN: | 1549-7879 | DOI: | 10.1080/15226514.2016.1207600 | ISI #: | 000392673100006 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2018 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
rangel2016.pdf | Peer-reviewed author version | 1.58 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.