the breaking down of heavy metal and organic compounds. The most significant
factor in the selection of potential microorganism that could break down most of
these contaminants as well efficaciously compete with original micro flora. It was
also stated that the application of genetic engineered microorganism could enhance
the stability of indigenous microorganisms without affecting their biodegradation
potential. Bioaugmentation is commonly applied in the bioremediation of municipal
wastewater. Moreover, it was stated that remediation industry practices employed
bioaugmentation as a sustainable approach for the bioremediation of various generated pollutant from their industry because it is cheaper and affordable, and it could
facilitate the process of bioremediation on the site.
It has been stated that microorganisms possess the capability to enhance plant
growth–promoting capability and bioremediation of heavily polluted sited with
heavy metals. In view of the aforementioned, Arunakumara et al. (2015) isolated
phosphate solubilizing bacterial strain and tested their effectiveness in the bioremediation of the following strains such as Co, Pb, and Zn and their potential to fast track
their uptake by Helianthus annuus. The level of heavy metal was performed using
the agar dilution techniques while the rate of metal uptake and the influence of
phosphate solubilizing bacterium in the enhancement of the heavy metal uptake was
established in a pot experiment while batch experiment was utilized for the establishment of bacterial inoculation on the movement of metals in soil. The characterization of the isolated that could solubilize phosphate using 16S rRNA sequence
evaluation showed that Klebsiella oxytoca JCM1665 was the best strain among
many others. It possesses the capability to solubilize phosphorus in the absence
and presence of metals. It was also established that the inoculation of strain
JCM1665 of Klebsiella oxytoca led to the improvement of H. annuus (49%, 22%,
and 39%, respectively in Co, Pb, and Zn contaminated soils) when compared to the
control plants while there was improvement in the level of translocation and
accumulation of Co, Pb, and Zn from roots to shoots Also, the water-soluble fraction
of Co, Pb, and Zn in soil was improved by 51%, 24%, and 76%, respectively in
inoculated soils when compared to the control without any inoculants. Their study
showed that Klebsiella oxytoca JCM1665 possess metal mobilizing capability and
could enhance plant growth promotion with improved phytoextraction activity most
especially for the soil polluted with Co, Pb, and Zn.
It has been observed that the process of bioaugmentation could enhance the
process of microbial diversity and the level of soil fertility apart from playing a
crucial role in the bioremediation of heavily polluted soil. Festa et al. (2016)
evaluated the influence of bioaugmentation with Sphingobium sp. AM strain on
numerous soil microbiomes, contaminated soil (Phe), chronically contaminated soil
(IPK), and pristine soil (PS). The study was carried out to establish the role of these
microorganisms in the bioremediation of these polluted soil and their role in the
improvement of the ecology that drives bacterial communities after each inoculation
of these isolates. It was discovered that AM strain draft genome classifies genes for
the metabolism of aliphatic and aromatic hydrocarbons. Moreover, it was detected
that inoculation enhances the removal of phenanthrene during the whole treatment of
Phe no observable degradation of any PAH was detected. Also, pyrosequencing
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C. O. Adetunji and O. A. Anani
factor in the selection of potential microorganism that could break down most of
these contaminants as well efficaciously compete with original micro flora. It was
also stated that the application of genetic engineered microorganism could enhance
the stability of indigenous microorganisms without affecting their biodegradation
potential. Bioaugmentation is commonly applied in the bioremediation of municipal
wastewater. Moreover, it was stated that remediation industry practices employed
bioaugmentation as a sustainable approach for the bioremediation of various generated pollutant from their industry because it is cheaper and affordable, and it could
facilitate the process of bioremediation on the site.
It has been stated that microorganisms possess the capability to enhance plant
growth–promoting capability and bioremediation of heavily polluted sited with
heavy metals. In view of the aforementioned, Arunakumara et al. (2015) isolated
phosphate solubilizing bacterial strain and tested their effectiveness in the bioremediation of the following strains such as Co, Pb, and Zn and their potential to fast track
their uptake by Helianthus annuus. The level of heavy metal was performed using
the agar dilution techniques while the rate of metal uptake and the influence of
phosphate solubilizing bacterium in the enhancement of the heavy metal uptake was
established in a pot experiment while batch experiment was utilized for the establishment of bacterial inoculation on the movement of metals in soil. The characterization of the isolated that could solubilize phosphate using 16S rRNA sequence
evaluation showed that Klebsiella oxytoca JCM1665 was the best strain among
many others. It possesses the capability to solubilize phosphorus in the absence
and presence of metals. It was also established that the inoculation of strain
JCM1665 of Klebsiella oxytoca led to the improvement of H. annuus (49%, 22%,
and 39%, respectively in Co, Pb, and Zn contaminated soils) when compared to the
control plants while there was improvement in the level of translocation and
accumulation of Co, Pb, and Zn from roots to shoots Also, the water-soluble fraction
of Co, Pb, and Zn in soil was improved by 51%, 24%, and 76%, respectively in
inoculated soils when compared to the control without any inoculants. Their study
showed that Klebsiella oxytoca JCM1665 possess metal mobilizing capability and
could enhance plant growth promotion with improved phytoextraction activity most
especially for the soil polluted with Co, Pb, and Zn.
It has been observed that the process of bioaugmentation could enhance the
process of microbial diversity and the level of soil fertility apart from playing a
crucial role in the bioremediation of heavily polluted soil. Festa et al. (2016)
evaluated the influence of bioaugmentation with Sphingobium sp. AM strain on
numerous soil microbiomes, contaminated soil (Phe), chronically contaminated soil
(IPK), and pristine soil (PS). The study was carried out to establish the role of these
microorganisms in the bioremediation of these polluted soil and their role in the
improvement of the ecology that drives bacterial communities after each inoculation
of these isolates. It was discovered that AM strain draft genome classifies genes for
the metabolism of aliphatic and aromatic hydrocarbons. Moreover, it was detected
that inoculation enhances the removal of phenanthrene during the whole treatment of
Phe no observable degradation of any PAH was detected. Also, pyrosequencing
378
C. O. Adetunji and O. A. Anani