Potential capacity of Beauveria bassiana and Metarhizium anisopliae in the biosorption of Cd2+ and Pb2+

Hussein, Khalid A.; Hassan, Sedky H.A.; Joo, Jin Ho

doi:10.2323/jgam.57.347

Cited by 33 publications

(11 citation statements)

References 35 publications

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“…A minor decrease in the metal removal rate was observed at pH 6.0. It has been reported that in acidic pH, association of hydronium ions with the cell surface creates reduction of negative charge intensity on the bacterial cell wall resulting in the reduction or inhibition of the binding of metal ions (Khalid et al 2011). Fourest et al (1994) reported that the functional groups on the bacteria may become positively charged and may not interact with the metal ions at acidic pH.…”

Section: Resultsmentioning

confidence: 99%

Bioremediation of heavy metals using an endophytic bacterium Paenibacillus sp. RM isolated from the roots of Tridax procumbens

Govarthanan

Mythili²,

Selvankumar³

et al. 2016

3 Biotech

121

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The aim of the present study was to assess the bioremediation potential of endophytic bacteria isolated from roots of Tridax procumbens plant. Five bacterial endophytes were isolated and subsequently tested for minimal inhibitory concentration (MIC) against different heavy metals. Amongst the five isolates, strain RM exhibited the highest resistance to copper (750 mg/l), followed by zinc (500 mg/l), lead (450 mg/l), and arsenic (400 mg/l). Phylogenetic analysis of the 16S rDNA sequence suggested that strain RM was a member of genus Paneibacillus. Strain RM also had the capacity to produce secondary metabolites, indole acetic acid, siderophores, 1-aminocyclopropane-1-carboxylate (ACC) deaminase, and biosurfactant and solubilize phosphate. The growth kinetics of strain RM was altered slightly in the presence of metal stress. Temperature and pH influenced the metal removal rate. The results suggest that strain RM can survive under the high concentration of heavy metals and has been identified as a potential candidate for application in bioremediation of heavy metals in contaminated environments.

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Section: Resultsmentioning

confidence: 99%

Bioremediation of heavy metals using an endophytic bacterium Paenibacillus sp. RM isolated from the roots of Tridax procumbens

Govarthanan

Mythili²,

Selvankumar³

et al. 2016

3 Biotech

121

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“…The higher adsorption capacity of B. bassiana biomass than that for M. anisopliae could be due to the differences in the cell wall structure. The highest rate of metal absorption was observed during the first 5 min of the experiment and reached a constant value after 30 min (Hussein et al 2011).…”

Section: Influence Of Heavy Metals On Entomopathogenic Fungimentioning

confidence: 86%

“…The presence of heavy metals in the human body can contribute to the development of autoimmune diseases, digestive system disorders, and diseases of many important internal organs, including the heart, liver, kidneys, and lungs. An increase in heavy metal occurrence in the environment is due to the development of mining and electroplating industries, vehicular traffic, and waste (Hussein et al 2011;Gola et al 2016). The removal of heavy metal residues from the environment poses problems because of their tendency to accumulate in soil.…”

Section: Influence Of Heavy Metals On Entomopathogenic Fungimentioning

confidence: 99%

Entomopathogenic fungi: unconventional applications

Litwin

Nowak

Różalska

2020

Rev Environ Sci Biotechnol

161

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Entomopathogenic fungi (EPF) are microorganisms that cause fatal diseases of arthropods. The infection process involves several stages that consist of direct contact of the fungus with the surface of the cuticle of the attacked insect. The factors that determine the effectiveness of the infection process include lytic enzymes, secondary metabolites, and adhesins produced by EPF. Because of their high insecticidal effectiveness, these fungi are commonly used as biopesticides in organic farming. As the environment and farmlands are contaminated with many compounds of anthropogenic origin (e.g., pesticides), the effects of these toxic compounds on EPF and the mechanisms that affect their survival in such a toxic environment have been studied in recent years. This review presents information on the capacity of EPF to remove toxic contaminants, including alkylphenols, organotin compounds, synthetic estrogens, pesticides and hydrocarbons. Moreover, these fungi produce numerous secondary metabolites that can be potentially used in medicine or as antimicrobial agents. Despite their huge potential in biocontrol processes, the use of EPF has been underestimated due to a lack of knowledge on their abilities. In our work, we have presented the available data on the possibilities of the additional and unconventional use of these microorganisms.

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“…A feature of Metarhizium species, including the non-entomopathogenic M. marquandii, is that they are often found in strongly metal polluted areas [178,179]. Indeed, B. bassiana (another endophytic insect pathogen) and Metarhizium anisopliae can be used as efficient biosorbents for Pb(II) and Cd(II) from aqueous metal solutions [180]. Metals clearly play an important role in Metarhizium biology as shown by the large number and diversification of detoxification systems in Metarhizium genomes [10].…”

Section: Traits For Being Multitalentedmentioning

confidence: 99%

Metarhizium: jack of all trades, master of many

2020

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The genus Metarhizium and Pochonia chlamydosporia comprise a monophyletic clade of highly abundant globally distributed fungi that can transition between long-term beneficial associations with plants to transitory pathogenic associations with frequently encountered protozoans, nematodes or insects. Some very common ‘specialist generalist’ species are adapted to particular soil and plant ecologies, but can overpower a wide spectrum of insects with numerous enzymes and toxins that result from extensive gene duplications made possible by loss of meiosis and associated genome defence mechanisms. These species use parasexuality instead of sex to combine beneficial mutations from separate clonal individuals into one genome (Vicar of Bray dynamics). More weakly endophytic species which kill a narrow range of insects retain sexuality to facilitate host–pathogen coevolution (Red Queen dynamics). Metarhizium species can fit into numerous environments because they are very flexible at the genetic, physiological and ecological levels, providing tractable models to address how new mechanisms for econutritional heterogeneity, host switching and virulence are acquired and relate to diverse sexual life histories and speciation. Many new molecules and functions have been discovered that underpin Metarhizium associations, and have furthered our understanding of the crucial ecology of these fungi in multiple habitats.

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Potential capacity of Beauveria bassiana and Metarhizium anisopliae in the biosorption of Cd2+ and Pb2+

Cited by 33 publications

References 35 publications

Bioremediation of heavy metals using an endophytic bacterium Paenibacillus sp. RM isolated from the roots of Tridax procumbens

Bioremediation of heavy metals using an endophytic bacterium Paenibacillus sp. RM isolated from the roots of Tridax procumbens

Entomopathogenic fungi: unconventional applications

Metarhizium: jack of all trades, master of many

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