Alcaligenes faecalis associated with Mimosa calodendron rizhosphere assist plant survival in arsenic rich soils.

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dc.contributor.authorFelestrino, Érica Barbosa
dc.contributor.authorAssis, Renata de Almeida Barbosa
dc.contributor.authorLemes, Camila Gracyelle de Carvalho
dc.contributor.authorCordeiro, Isabella Ferreira
dc.contributor.authorFonseca, Natasha Peixoto
dc.contributor.authorVilla, Morghana Marina
dc.contributor.authorVieira, Izadora Tabuso
dc.contributor.authorKamino, Luciana Hiromi Yoshino
dc.contributor.authorCarmo, Flávio Fonseca do
dc.contributor.authorMoreira, Leandro Marcio
dc.date.accessioned2019-04-08T18:27:58Z
dc.date.available2019-04-08T18:27:58Z
dc.date.issued2017
dc.description.abstractThe ferruginous rupestrian grasslands (FRG) in the Iron Quadrangle (IQ) are ecosystems characterized by rocky soils with reduced availability of water and nutrients, but high levels of metals. In order to comprehend the interference of microorganisms on the adaptive process of endemic plant Mimosa calodendrum (Fabaceae), bacteria associated with its roots and rhizosphere were isolated. Fourteen isolates were obtained and subsequently grown in the presence of different concentrations of arsenic (As) species. The isolate Mc250, an Alcaligenes faecalis strain, resisted to 10 mM of As (III) and 800 mM of As (V). In the presence of this strain, atomic spectrometer detected a reduction of 55% for As (III) and 72% for As (V) respectively in 10 mM and 500 mM solution. Scanning electron microscopy of this isolate demonstrated morphological modification and EDX spectroscopy revealed the presence of both As species adsorbed on the membrane, justifying the removal observed in the in vitro assays. To validate this potential removal of As in vivo, tomato plants were used as grown model in the presence and absence of A. faecalis in soil previously contaminated with 5 mM of As (III). After 14 days, plants from contaminated soil had their growth improved when compared to untreated control plants. All these results suggest for the first time that plant-associated bacteria from FRG-IQ present potential for soil rhizoremediation and may benefit the adaptive processes of plants in extreme environments including application in recovering degraded areas.pt_BR
dc.identifier.citationFELESTRINO, E. B. et al. Alcaligenes faecalis associated with Mimosa calodendron rizhosphere assist plant survival in arsenic rich soils. Journal of soil science and plant nutrition, v. 17, n. 4, p. 1102-1115, 2017. Disponível em: <https://scielo.conicyt.cl/scielo.php?script=sci_abstract&pid=S0718-95162017000400019&lng=es&nrm=i>. Acesso em: 22 fev. 2019.pt_BR
dc.identifier.issn07189516
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/10971
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseTodo o conteúdo do periódico Journal of Soil Science and Plant Nutrition, exceto onde identificado, está sob uma licença Creative Commons 4.0 que permite copiar, distribuir e transmitir o trabalho em qualquer suporte ou formato desde que sejam citados o autor e o licenciante. Fonte: Journal of Soil Science and Plant Nutrition <https://scielo.conicyt.cl/revistas/jsspn/eaboutj.htm>. Acesso em: 01 mar. 2019.pt_BR
dc.subjectArsenic removalpt_BR
dc.subjectIron Quadranglept_BR
dc.subjectArsenic resistant bacteriapt_BR
dc.subjectPlant growthpromoting rhizobacteriapt_BR
dc.subjectRhizoremediationpt_BR
dc.titleAlcaligenes faecalis associated with Mimosa calodendron rizhosphere assist plant survival in arsenic rich soils.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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