PROIMI   05436
PLANTA PILOTO DE PROCESOS INDUSTRIALES MICROBIOLOGICOS
Unidad Ejecutora - UE
artículos
Título:
Bioremediation of lindane contaminated soil by Streptomyces sp. M7 and its effects on Zea mays growth
Autor/es:
CLAUDIA S. BENIMELI; MARÍA S. FUENTES; CARLOS M. ABATE; MARÍA J. AMOROSO
Revista:
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2007
ISSN:
0964-8305
Resumen:
PROOF
The objective of the present study was to study the lindane bioremediation abilities of Streptomyces sp. M7 in soil samples and to know
the pesticide effects on maize plants seeded in lindane-contaminated soil previously inoculated with Streptomyces sp. M7.
When different initial pesticide concentrations (100, 150, 200, and 300 mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7 in soil samples and to know
the pesticide effects on maize plants seeded in lindane-contaminated soil previously inoculated with Streptomyces sp. M7.
When different initial pesticide concentrations (100, 150, 200, and 300 mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7.
When different initial pesticide concentrations (100, 150, 200, and 300 mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7.
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PROOF
The objective of the present study was to study the lindane bioremediation abilities of Streptomyces sp. M7 in soil samples and to know
the pesticide effects on maize plants seeded in lindane-contaminated soil previously inoculated with Streptomyces sp. M7.
When different initial pesticide concentrations (100, 150, 200, and 300 mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7 in soil samples and to know
the pesticide effects on maize plants seeded in lindane-contaminated soil previously inoculated with Streptomyces sp. M7.
When different initial pesticide concentrations (100, 150, 200, and 300 mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7.
When different initial pesticide concentrations (100, 150, 200, and 300 mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.mgkg1) were added to sterile soil, the microbial growth
observed was similar to the control without lindane. A decrease of the residual lindane concentration was detected in soils samples in
relation to the abiotic controls (29.1%, 78.03%, 38.81%, and 14.42%, respectively). The optimum Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp M7 inoculum was
selected in sterile soil spiked with lindane 100 mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.mgkg1soil; it was 2 g kg1 soil for obtaining the most ef.cient bioremediation process
(56% removal).
Lindane concentrations of 100, 200, and 400 mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.mgkg1 soil did not affect the germination and vigor index of maize plants seeded in
contaminated soils without Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7. When this microorganism was inoculated at the same conditions a better vigor index
was observed and 68% of lindane removal.
These results confirm the lindane-contaminated soil bioremediation potential of Streptomyces sp. M7.Streptomyces sp. M7.
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