Pyrene degradation and copper and zinc uptake by<i>Fusarium solani</i>and<i>Hypocrea lixii</i>isolated from petrol station soil

Hong, Ji Won; Park, J.Y.; Gadd, Geoffrey Michael

doi:10.1111/j.1365-2672.2009.04613.x

Cited by 42 publications

(29 citation statements)

References 68 publications

(100 reference statements)

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“…As previously observed [21,46], OTUs affiliated to the Arthrobacter and Fusarium genera increased over time in NM soil samples. Members of the Arthrobacter and Fusarium genera have been found in hydrocarbon-contaminated environments [56,57] and could be potential PAH degraders [51,58]. The relative abundance of the Nitrospirae phylum, one Nitrospira OTU and the Nitrospirales order increased over time.…”

Section: Impact Of Edaphic Parameters On Soil Microbial Diversity Ovementioning

confidence: 97%

The Bacterial and Fungal Diversity of an Aged PAH- and Heavy Metal-Contaminated Soil is Affected by Plant Cover and Edaphic Parameters

Bourceret

Cébron

Tisserant³

et al. 2015

Microb Ecol

105

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Industrial wasteland soils with aged PAH and heavy metal contaminations are environments where pollutant toxicity has been maintained for decades. Although the communities may be well adapted to the presence of stressors, knowledge about microbial diversity in such soils is scarce. Soil microbial community dynamics can be driven by the presence of plants, but the impact of plant development on selection or diversification of microorganisms in these soils has not been established yet. To test these hypotheses, aged-contaminated soil samples from a field trial were collected. Plots planted with alfalfa were compared to bare soil plots, and bacterial and fungal diversity and abundance were assessed after 2 and 6 years. Using pyrosequencing of 16S rRNA gene and ITS amplicons, we showed that the bacterial community was dominated by Proteobacteria, Actinobacteria, and Bacteroidetes and was characterized by low Acidobacteria abundance, while the fungal community was mainly represented by members of the Ascomycota. The short-term toxic impact of pollutants usually reduces the microbial diversity, yet in our samples bacterial and fungal species richness and diversity was high suggesting that the community structure and diversity adapted to the contaminated soil over decades. The presence of plants induced higher bacterial and fungal diversity than in bare soil. It also increased the relative abundance of bacterial members of the Actinomycetales, Rhizobiales, and Xanthomonadales orders and of most fungal orders. Multivariate analysis showed correlations between microbial community structure and heavy metal and PAH concentrations over time, but also with edaphic parameters (C/N, pH, phosphorus, and nitrogen concentrations).

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Section: Impact Of Edaphic Parameters On Soil Microbial Diversity Ovementioning

confidence: 97%

The Bacterial and Fungal Diversity of an Aged PAH- and Heavy Metal-Contaminated Soil is Affected by Plant Cover and Edaphic Parameters

Bourceret

Cébron

Tisserant³

et al. 2015

Microb Ecol

105

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“…Additionally, F. solani production of siderophores for sequestering heavy metals was reported by Hong et al (2009) who observed that all the F. solani isolates tested showed positive CAS reactions (chrome azurol S agar plate siderophore assay) and hence reported that it is possible that the F. solani siderophores may have solubilized and sequestered Cu and Zn from wastes contaminated singly or in combination with these heavy metals.…”

Section: Discussionmentioning

confidence: 84%

“…Hashem and Bahkali (1994) showed that a strain of F. solani could grow in the presence of cobalt up to a concentration of 300 ppm, however the scavenging mechanisms of F. solani towards cobalt was not studied. Hong et al (2009) studied the effect of F. solani isolates on Cu, Zn, and Pb, i.e., cobalt wasn't involved in the study.…”

Section: Discussionmentioning

confidence: 99%

Intracellular Siderophore Detection in an Egyptian, Cobalt-Treated F. solani Isolate Using SEM-EDX with Reference to its Tolerance

Rasha

2017

Polish Journal of Microbiology

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A b s t r a c tAn Egyptian, plant pathogenic Fusarium solani isolate was grown on cobalt concentrations of 0, 50, 200, 500, 800, and 1000 ppm. The isolate survived concentrations up to 800 ppm, however failed to grow at 1000 ppm. Morphology and elemental analysis of the isolate under the investigated Co concentrations were studied using Scanning electron microscopy (SEM) and energy dispersive X-ray microanalysis (EDX). The isolate reserved its morphology up to a concentration of 200 ppm. Morphological distortions were dramatic at 500 and 800 ppm. EDX detected Co uptake through the hyphae, microconidia, macroconidia, and chlamydospores. Iron, calcium, and potassium were also detected. EDX results showed a linear relationship between Co% and Fe% up to a concentration of 500 ppm reflecting the possible ability of the isolate to synthesize intracellular siderophores storing iron and their release from the vacuoles. The participation of such siderophores in conferring tolerance against cobalt is discussed. At 800 ppm, the % of Fe was greatly reduced with an accompanying increase in morphological distortions and absence of microconidia. Increasing the implicated cobalt concentrations resulted in increasing the percentages of the chelated cobalt reflecting the possible implication of the cell wall as well as extracellular siderophores in the uptake of cobalt. The current results recommend the absence of cobalt in any control regime taken to combat the investigated F. solani isolate and highlights the accomplishment of biochemical, ultrastructural, and molecular studies on such isolate to approve the production of siderophores and the role of cell wall in cobalt uptake.K e y w o r d s: Fusarium solani, cobalt uptake, cobalt tolerance, siderophores

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“…Most studies have been undertaken on filamentous fungal strains and mostly members from the genera Aspergillus, Fusarium, Humicola, and Nannizzia have been reported to possess resistance against heavy metals [13,23,25]. Recently, several studies have reported a similar trend among endophytic fungi being able to resist several heavy metals such as copper, zinc, and cadmium [26][27][28]. The preliminary screening of endophytic fungi against heavy metals showed the order of tolerance to heavy metals are Cd<Cu<Zn<Co.…”

Section: Screening Of Fungal Isolates Against Heavy Metalsmentioning

confidence: 87%

Screening and Identification of Heavy Metal-Tolerant Endophytic Fungi Lasiodiplodia Theobromae From Boswellia Ovalifoliolata an Endemic Plant of Tirumala Hills

Nenkateswarlu

Vijaya³

et al. 2017

Asian J Pharm Clin Res

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Aim: The aim of this study was to evaluate the heavy metal resistance potentiality of endophytic fungi isolated from the leaves of Boswellia ovalifoliolata, an endemic medicinal plant of Tirumala Hills.Methods: Initially, isolation of fungal endophytes was carried out. Isolated fungi were screened for the heavy metal resistance against Co, Cd, Cu and Zn using growth and evaluated their maximum tolerant capacity. Molecular identification of endophytic fungi was carried out by 18S rRNA gene amplification and Sanger's nucleotide sequencing. Phylogenetic tree was constructed using NCBI Clustal W. Results:Ten different endophytic fungi were isolated from the leaves of B. ovalifoliolata. Among the isolated endophytic fungi, five showed resistance to Co, Cd, Cu, and Zn. The most resistant fungus was identified as Lasiodiplodia theobromae based on 18S rRNA gene sequencing. Conclusions:L. theobromae was isolated from B. ovalifoliolata and identified as one of the useful fungi involved in mycoremediation against heavy metal toxicity.

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Pyrene degradation and copper and zinc uptake byFusarium solaniandHypocrea lixiiisolated from petrol station soil

Cited by 42 publications

References 68 publications

The Bacterial and Fungal Diversity of an Aged PAH- and Heavy Metal-Contaminated Soil is Affected by Plant Cover and Edaphic Parameters

The Bacterial and Fungal Diversity of an Aged PAH- and Heavy Metal-Contaminated Soil is Affected by Plant Cover and Edaphic Parameters

Intracellular Siderophore Detection in an Egyptian, Cobalt-Treated F. solani Isolate Using SEM-EDX with Reference to its Tolerance

Screening and Identification of Heavy Metal-Tolerant Endophytic Fungi Lasiodiplodia Theobromae From Boswellia Ovalifoliolata an Endemic Plant of Tirumala Hills

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