NDLI: The Versatility of Delftia sp. Isolates as Tools for Bioremediation and Biofertilization Technologies

Content Provider	Springer Nature Link
Author	Ubalde, Martha C. Braña, Victoria Sueiro, Fabiana Morel, María A. Martínez Rosales, Cecilia Marquez, Carolina Castro Sowinski, Susana
Copyright Year	2012
Abstract	Two Pb(II)-resistant bacteria isolated from a soil containing 2,500 mg/kg of Pb were identified by 16S rRNA sequencing analysis as Delftia sp. and designated as 3C and 6C. Both isolates grew at a Pb(II) concentration of 62 mg/L and at the stationary phase showed a Pb(II)-sorption capability of 10 ± 1.5 (3C) and 5 ± 0.8 (6C) mg/g of biomass. Biochemical properties related to heavy metal resistance and plant growth promotion were analyzed and compared with the Cr(VI)-resistant plant growth-promoting Delftia sp. JD2, previously reported by our group. Both isolates and JD2 were resistant to Cr(VI), Pb(II) and many antibiotics, produced siderophores and the phytohormone indole-3-acetic, and showed clover growth-promoting activity in greenhouse conditions. Interestingly, the occurrence of integron class 1 was shown in all isolates. Our results add to previous reports and suggest that bacteria of the genus Delftia could be consider as good candidates for the design of technologies for cleaning up contaminated environments and/or the production of biofertilizers.
Starting Page	597
Ending Page	603
Page Count	7
File Format	PDF
ISSN	03438651
Journal	Current Microbiology
Volume Number	64
Issue Number	6
e-ISSN	14320991
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-04-03
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biotechnology Microbiology
Content Type	Text
Resource Type	Article
Subject	Medicine Microbiology Applied Microbiology and Biotechnology

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