The Effect  of  Streptomyces sp. Isolated from Acidic Cultures of Minerals on Plant Development in Environments Polluted with Mercury

Sara Liz Pacheco; Patricia Sheen; Jasminc Hurtado

doi:10.4028/www.scientific.net/AMR.1130.598

Paper Titles

Enrichment and Isolation of Acidophilic Microorganisms from Sediments of Gold Mine Waste Leachate
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Isolation and Characterization of Toxic Metal Removing Bacterial Bioflocculants
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Culture/Co-Culture Dependent and Independent Identification of Bacterial Communities along a Chronosequence of Spontaneous Reclamation on Gold Mine Spoils in Peru
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pH and Concentration Dependent Heavy Metal Uptake by Helianthus tuberosus in Phytoremediation Experiments
p.594

The Effect of Streptomyces sp. Isolated from Acidic Cultures of Minerals on Plant Development in Environments Polluted with Mercury
p.598

Prevention of the Generation of Acid Mine Drainage in a Dump Rich-In Pyrite Uranium Ore
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Combined Recovery of Copper and Mitigation of Pollution Potential of a Synthetic Metal-Rich Stream Draining a Copper Mine in Brazil
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Effects of Mining Pollution on the Longjiang River in China
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Analysis of the Microbial Community Associated with a Bioprocess System for Bioremediation of Thiocyanate- and Cyanide-Laden Mine Water Effluents
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1130The Effect of Streptomyces sp. Isolated from...

The Effect of Streptomyces sp. Isolated from Acidic Cultures of Minerals on Plant Development in Environments Polluted with Mercury

Abstract:

Three isolates of Streptomyces variabilis (AB5, F and K1A) and one isolate of Streptomyces sp. (C2) were isolated of acidic cultures from mineral ores and concentrates from mines of the Peruvian highlands. The isolates were identified molecular and phenotypically and characterized by growth at different conditions as pH tolerance, temperature, and sodium chloride and heavy metals resistance. Streptomyces sp. (C2) was able to grow until 200 ppm of mercury and S. variabilis (AB5) grows in the presence of 100 ppm of mercury. The isolates AB5 and K1A of S. variabilis were able to grow only until 50 ppm of mercury.All strains were tested by their ability to induce germination of Lactuca sativa, Medicago sativa and Phaseolus vulgaris seeds exposed to different mercury concentrations. It was shown a significative improvement in L.sativa and P. vulgaris. In L. sativa exposed to 50 ppm of mercury, all strains were able to improve germination, root length and number of leaves. Without Streptomyces addition, they only growth until 10 ppm of mercury. Streptomyces sp. isolate had better results in germination, root length and number of leaves of L. sativa . The results found in this work indicate the potential of these isolates for restoration of soils polluted with mercury.

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Periodical:

Advanced Materials Research (Volume 1130)

Pages:

598-601

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1130.598

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Online since:

November 2015

Authors:

Sara Liz Pacheco*, Patricia Sheen, Jasminc Hurtado

Keywords:

Acidic, Mercury, Ores, Perú, Streptomyces

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