Assessing nickel tolerance of bacteria isolated from serpentine soils

TY - JOUR

T1 - Assessing nickel tolerance of bacteria isolated from serpentine soils

AU - Silva Costa, F.

AU - Figueiredo Sena Macedo, Maria Wanna

AU - Araujo, A.

AU - Rodrigues, Catia

AU - Kuramae, E.E.

AU - Alcanfor, S.

AU - Pessoa-Filho, M.

AU - Barreto, C.C.

N1 - 6641, ME; Data Archiving: no NIOO data NB niet Open Access (in WoS wel, maar klopt niet)

PY - 2019

Y1 - 2019

N2 - Serpentine soils present unique characteristics such as a low Ca/Mg ratio, low concentration of nutrients, and a high concentration of heavy metals, especially nickel. Soil bacterial isolates from an ultramafic complex located in the tropical savanna known as the Brazilian Cerrado were studied. Nickel-tolerant bacteria were obtained, and their ability to remove nickel from a culture medium was assessed. Bacterial isolates presented higher tolerance to nickel salts than previously reported for bacteria obtained from serpentine environments in other regions of the world. In addition, the quantification of nickel in cell pellets indicated that at least four isolates may adsorb soluble forms of nickel. It is expected that information gathered in this study will support future efforts to exploit serpentine soil bacteria for biotechnological processes involving nickel decontamination from environmental samples.

AB - Serpentine soils present unique characteristics such as a low Ca/Mg ratio, low concentration of nutrients, and a high concentration of heavy metals, especially nickel. Soil bacterial isolates from an ultramafic complex located in the tropical savanna known as the Brazilian Cerrado were studied. Nickel-tolerant bacteria were obtained, and their ability to remove nickel from a culture medium was assessed. Bacterial isolates presented higher tolerance to nickel salts than previously reported for bacteria obtained from serpentine environments in other regions of the world. In addition, the quantification of nickel in cell pellets indicated that at least four isolates may adsorb soluble forms of nickel. It is expected that information gathered in this study will support future efforts to exploit serpentine soil bacteria for biotechnological processes involving nickel decontamination from environmental samples.

KW - international

U2 - 10.1007/s42770-019-00111-4

DO - 10.1007/s42770-019-00111-4

M3 - Article

SN - 1517-8382

VL - 50

SP - 705

EP - 713

JO - Brazilian Journal of Microbiology

JF - Brazilian Journal of Microbiology

IS - 3

ER -