Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/16560
Título: Phytomanagement of Cd-contaminated soils using maize (Zea mays L.) assisted by plant growth-promoting rhizobacteri
Autor: Moreira, Helena
Marques, Ana P. G. C.
Franco, Albina R.
Rangel, António O. S. S.
Castro, Paula M. L.
Palavras-chave: Zea mays
Soil
PGPR
Phytomanagement
Cadmium
Biomass production
Remediation
Data: 2014
Citação: MOREIRA, Helena …[et al.] - Phytomanagement of Cd-contaminated soils using maize (Zea mays L.) assisted by plant growth-promoting rhizobacteria. Environmental Science and Pollution Research. ISSN 1614-7499. Vol. 21, n.º 16 (2014), p. 9742–9753
Resumo: Zea mays (L.) is a crop widely cultivated throughout the world and can be considered suitable for phytomanagement due to its metal resistance and energetic value. In this study, the effect of two plant growth-promoting rhizobacteria, Ralstonia eutropha and Chryseobacterium humi, on growth and metal uptake of Z. mays plants in soils contaminated with up to 30 mg Cd kg−1 was evaluated. Bacterial inoculation increased plant biomass up to 63 % and led to a decrease of up to 81 % in Cd shoot levels (4–88 mg Cd kg−1) and to an increase of up to 186 % in accumulation in the roots (52–134 mg Cd kg−1). The rhizosphere community structure changed throughout the experiment and varied with different levels of Cd soil contamination, as revealed by molecular biology techniques. Z. mays plants inoculated with either of the tested strains may have potential application in a strategy of soil remediation, in particular short-term phytostabilization, coupled with biomass production for energy purposes.
Peer review: yes
URI: http://hdl.handle.net/10400.14/16560
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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