Arsenic biotransformation by arsenic-resistant fungi Trichoderma asperellum SM-12F1, Penicillium janthinellum SM-12F4, and Fusarium oxysporum CZ-8F1

Su, Shiming; Zeng, Xibai; Bai, Lei; Li, Lianfang; Duan, Renyan

doi:10.1016/j.scitotenv.2011.08.039

Cited by 55 publications

(33 citation statements)

References 39 publications

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“…Experiment I was conducted to study the As(III) influx across fungal cell walls and the possible transformation of As speciation in fungal cells. The experimental procedure was similar to the previous report of Su et al (2011). A minor modification was included: after the PGP culture media inoculated with each fungal strain and 40 mg L À1 of As(III) were cultivated for different periods (0, 2, 3, 5, 10, and 15 d), the harvested material was centrifuged to separate the fungal cells and the medium.…”

Section: As(iii) Influx and Efflux Across Fungal Cell Walls And Convementioning

confidence: 99%

“…After fixing the volume, the buffer solution was used as the fungal extracellular fraction. Subsequently, the fungal fresh weight was measured and fresh cells were ground with a mixed solution of TMAH with an original strength of 25% (Su et al, 2011) and Milli-Q water. The samples (the medium, extracellular fraction, and fungal cells) were filtered through 0.22-lm filters (JinLon, Menbrana Co. Germany).…”

Section: As(iii) Influx and Efflux Across Fungal Cell Walls And Convementioning

confidence: 99%

“…Three replicates were used for each sampling interval. The main operating conditions of HPLC-HG-AFS were the same as those given earlier by Su et al (2011).…”

Section: As(iii) Influx and Efflux Across Fungal Cell Walls And Convementioning

confidence: 99%

“…The possible speciation of As in these fungal cells has been studied after exposure to arsenate [As(V)] (Su et al, 2011(Su et al, , 2012, which is a ubiquitous specie of As in oxic environments. However, the possible transportation and/or transformation of arsenite [As(III)] during the surviving of these fungal strains has not been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Arsenic speciation transformation and arsenite influx and efflux across the cell membrane of fungi investigated using HPLC–HG–AFS and in-situ XANES

Zeng

Feng

et al. 2015

Chemosphere

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Section: As(iii) Influx and Efflux Across Fungal Cell Walls And Convementioning

confidence: 99%

Section: As(iii) Influx and Efflux Across Fungal Cell Walls And Convementioning

confidence: 99%

“…Three replicates were used for each sampling interval. The main operating conditions of HPLC-HG-AFS were the same as those given earlier by Su et al (2011).…”

Section: As(iii) Influx and Efflux Across Fungal Cell Walls And Convementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Arsenic speciation transformation and arsenite influx and efflux across the cell membrane of fungi investigated using HPLC–HG–AFS and in-situ XANES

Zeng

Feng

et al. 2015

Chemosphere

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“…Several studies have shown the ability of Trichoderma to biotransform heavy metals (Atagana 2009;Su et al 2011) and hydrocarbons (Matsubara et al 2006). In fact, it is known that several species of the genus Trichoderma possess the ability to degrade and metabolize PAHs such as naphthalene, phenanthrene, pyrene, and benzo[a]pyrene, even in the presence of heavy metals (Atagana 2009;Verdin et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Degradation of polycyclic aromatic hydrocarbons in soil by a tolerant strain of Trichoderma asperellum

Zafra

Moreno-Montaño

Absalón

et al. 2014

Environ Sci Pollut Res

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Trichoderma asperellum H15, a previously isolated strain characterized by its high tolerance to low (LMW) and high molecular weight (HMW) PAHs, was tested for its ability to degrade 3-5 ring PAHs (phenanthrene, pyrene, and benzo[a]pyrene) in soil microcosms along with a biostimulation treatment with sugarcane bagasse. T. asperellum H15 rapidly adapted to PAH-contaminated soils, producing more CO2 than uncontaminated microcosms and achieving up to 78 % of phenanthrene degradation in soils contaminated with 1,000 mg Kg(-1) after 14 days. In soils contaminated with 1,000 mg Kg(-1) of a three-PAH mixture, strain H15 was shown to degrade 74 % phenanthrene, 63 % pyrene, and 81 % of benzo[a]pyrene. Fungal catechol 1,2 dioxygenase, laccase, and peroxidase enzyme activities were found to be involved in the degradation of PAHs by T. asperellum. The results demonstrated the potential of T. asperellum H15 to be used in a bioremediation process. This is the first report describing the involvement of T. asperellum in LMW and HMW-PAH degradation in soils. These findings, along with the ability to remove large amounts of PAHs in soil found in the present work provide enough evidence to consider T. asperellum as a promising and efficient PAH-degrading microorganism.

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Arsenite Resistance, Accumulation, and Volatilization Properties of Trichoderma asperellumSM‐12F1, Penicillium janthinellumSM‐12F4, and Fusarium oxysporum CZ‐8F1

Feng

Zeng

et al. 2013

CLEAN Soil Air Water

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It is expected that microorganisms capable of arsenic (As) accumulation and volatilization can be used to remediate As‐contaminated environments. In this paper, the arsenite [As(III)] resistance, accumulation, and volatilization properties of Trichoderma asperellum SM‐12F1, Penicillium janthinellum SM‐12F4, and Fusarium oxysporum CZ‐8F1 were investigated. The results indicated that all three fungal strains exhibited significant As(III)‐resistance. After being exposed to 40 and 80 mg/L As(III) for five days, the dry mycelium weights of P. janthinellum SM‐12F4 and F. oxysporum CZ‐8F1 were significantly increased compared to the controls. The spiked As(III) initially inhibited and subsequently promoted fungal growth (mainly in the logarithmic growth phase). The maximal biomasses of 0.25, 0.29, and 0.29 g for T. asperellum SM‐12F1, P. janthinellum SM‐12F4, and F. oxysporum CZ‐8F1 after exposure to As(III), respectively, were all higher than their corresponding controls without As(III). When exposed to 40 mg/L As(III) for five days, the efficiencies of As(III) accumulation for T. asperellum SM‐12F1, P. janthinellum SM‐12F4, and F. oxysporum CZ‐8F1 were 53.02, 13.67, and 13.65 µg/g/day, respectively, and the efficiencies of As(III) volatilization were 51.87, 54.34, and 46.35 µg/g/day, respectively. It seems that these fungal strains can be used in the future to tackle As‐contaminated environments.

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Arsenic biotransformation by arsenic-resistant fungi Trichoderma asperellum SM-12F1, Penicillium janthinellum SM-12F4, and Fusarium oxysporum CZ-8F1

Cited by 55 publications

References 39 publications

Arsenic speciation transformation and arsenite influx and efflux across the cell membrane of fungi investigated using HPLC–HG–AFS and in-situ XANES

Arsenic speciation transformation and arsenite influx and efflux across the cell membrane of fungi investigated using HPLC–HG–AFS and in-situ XANES

Degradation of polycyclic aromatic hydrocarbons in soil by a tolerant strain of Trichoderma asperellum

Arsenite Resistance, Accumulation, and Volatilization Properties of Trichoderma asperellumSM‐12F1, Penicillium janthinellumSM‐12F4, and Fusarium oxysporum CZ‐8F1

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