Formulation of fungi for <i>in situ</i> bioremediation

Bennett, Joan W.; Connick, William J.; Daigle, Donald J.; Wunch, Kenneth

doi:10.1017/cbo9780511541780.006

Cited by 12 publications

(5 citation statements)

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“…Enhanced degradation of xenobiotics occurs when WRF and indigenous soil micro-organisms are co-cultured (Fernández-Sánchez et al 2001;in der Wiesche et al 1996). Several authors have suggested co-cultures and consortia degradation as a promising strategy to achieve efficient degradation (Bader et al 2010;Bennett et al 2007;Dwivedi et al 2011;Mikesková et al 2012). However, compared to studies done on monocultures, co-culture studies are very limited especially on their application as a strategy in metabolizing xenobiotic compounds (Parani and Eyini 2010;Chi et al 2007).…”

Section: Co-culture Degradation Mechanisms and Strategiesmentioning

confidence: 99%

Potential microbial applications of co-cultures involving ligninolytic fungi in the bioremediation of recalcitrant xenobiotic compounds

Ijoma

Tekere

2017

Int. J. Environ. Sci. Technol.

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Recalcitrant xenobiotic compounds are a major source of concern due to their resistance to degradation and persistency in the environment. Xenobiotic compounds pose a serious threat to the environment as they tend to distort the nutrient cycling and affect non-target organisms. These recalcitrant compounds include heavy metals, halocarbons, polychlorinated biphenyls, polycyclic aromatic compounds, synthetic polymers, alkyl benzyl sulphonates, nitroaromatics, dioxins, synthetic dyes, chlorophenols, certain herbicides and pesticides as well as lignins that are ubiquitous in nature. Xenobiotic compounds find their way into the environment either through intentional release as happens with pesticides and herbicides spray or accidentally in the form of oil spills and persist as sediments and complexes, thereby reducing the quality of soil and water bodies and consequently creating the need for removal and/ or remediation processes. White rot fungi which degrade the most recalcitrant natural polymer, lignin, have been shown to degrade a wide range of recalcitrant xenobiotic compounds. Recently, the use of co-cultures of white rot has been a subject of research. Owing to the variation in the ligninolytic machinery and rates of degradation, the use of co-cultures is attractive as it offers the advantage of combining the degradative capabilities of different fungi to bring about complete degradation of the parent compounds as well as the metabolites.

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Section: Co-culture Degradation Mechanisms and Strategiesmentioning

confidence: 99%

Potential microbial applications of co-cultures involving ligninolytic fungi in the bioremediation of recalcitrant xenobiotic compounds

Ijoma

Tekere

2017

Int. J. Environ. Sci. Technol.

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“…White-rot fungi are a physiological rather than a taxonomic grouping, belonging to the basidiomycetes group, and they exhibit the most efficient and extensive lignin degradation (Pointing 2001). These can be used as the active ingredients of bioherbicide, bioinsecticide, and biofungicide products (Bennett et al 2001). Exploration, conservation, and utilization of the fungi belonging to the basidiomycetes group can be expected to prove beneficial for humankind, as well as the environment.…”

Section: Introductionmentioning

confidence: 99%

Media selection for mycelia growth, antifungal activity against wood-degrading fungi, and GC-MS study by Pycnoporus sanguineus

Teoh

Don

Ujang

2011

BioRes

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Wood-decaying fungi present a serious threat to items made from rubberwood (Hevea brasiliensis). Though conventional chemical control has been a successful method for preserving wood against stain and decay fungi growth, the effects of these chemicals are of concern because they create problems for the environment and public health. Pycnoporus sanguineus (P. sanguineus), is a white-rot fungus that invades wood during its growth, storage, or use, causing decay or other property changes. It was considered in this work as a potential source of bioactive compounds and investigated for its natural antifungal activity using a minimum inhibitory concentration assay against wood-degrading fungi. It was found that media consisting of 10.0 g/L malt extract, yeast extract, dextrose, and maltose, respectively at pH 4.7±0.2 provided the highest biomass production by P. sanguineus. Results showed that the antifungal properties of methanol and water extract of P. sanguineus mycelia and supernatant ranged from MIC values of 0.1 to 5.0 µg/µL. 4H-Pyran-4-one,2,3-dihydro-3,5-dihydroxy-6-methyl- (DDMP) was found to be the major component in the extract of this fungus, based on analysis using gas chromatography – mass spectrometry.

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“…The ethanol extract of all the three higher fungi showed varying degrees of antifungal properties against the test fungi (Table 1). This is because the three mushroom having active ingredients, produced different metabolites and antifungal peptide, which act as bioherbicides, bioinsectiside and biofungicides product which inhibited mycelial growth of pathogenic fungai (Wang and Ng 2004;Gregori et al, 2007;Badalyan et al, 2002;Bennett et al, 2001 andTeoh et al, 2012). Schizophyllum commune showed maximum zone of inhibition (32.56 mm) against Aspergillus niger (Plate 1) which was followed by inhibition zone of 28.56 and 25.34 mm in diameter against Colletotricum graminicola and Alternaria solani respectively (Table 1).…”

Section: Resultsmentioning

confidence: 99%

Screening of Antifungal Activity of Pleurotus pulmonarius, Pleurotus florida and Shizophyllum commune

Dahima¹,

Doshi²,

Singh³

2020

Int.J.Curr.Microbiol.App.Sci

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Antifungal activities of the three mushrooms Pleurotus pulmonarius, Pleurotus florida and Schizophyllum commune ethanol extracts were evaluated against some plant pathogenic fungi (Aspergillus flavus, Aspergillus niger and Alternaria solani, Colletotrichum graminicola, Fusarium oxysporum) by using agar well diffusion method. Minimum inhibitory concentration (MIC) was investigated for 1-20 mg/ml concentration to find out the lowest concentration of the sample that inhibits the growth of the test organisms. The standard agar dilution protocol with doubling dilution was used. The result revealed that the three mushrooms extract used in the present investigation possessed varying degrees of antifungal activities against the test plant pathogenic fungi. Ethanolic extract of Pleurotus florida showed highest inhibition activity against Fusarium oxysporu, and S. commune showed maximum zone of inhibition (ZOI) against A. niger, while, P. pulmonarius showed maximum zone of inhibition (ZOI) against A. solani. The minimum inhibitory concentrations (MIC) ranged between 9.67 and18.98 mg/ml for fungi, the lowest MIC, the extract was still be effective because of the presence of bio-active compounds. The findings revealed that the mushrooms extracts tested in the current work contains potential therapeutic compounds against some of the economically important plant diseases caused by bacteria and fungi.

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Formulation of fungi for in situ bioremediation

Cited by 12 publications

References 0 publications

Potential microbial applications of co-cultures involving ligninolytic fungi in the bioremediation of recalcitrant xenobiotic compounds

Potential microbial applications of co-cultures involving ligninolytic fungi in the bioremediation of recalcitrant xenobiotic compounds

Media selection for mycelia growth, antifungal activity against wood-degrading fungi, and GC-MS study by Pycnoporus sanguineus

Screening of Antifungal Activity of Pleurotus pulmonarius, Pleurotus florida and Shizophyllum commune

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