Improvement of tolerance to lead by filamentous fungus Pleurotus ostreatus HAU-2 and its oxidative responses

Zhang, Shimin; Zhang, Xiaolin; Chang, Chun–Ju; Yuan, Zhimin; Wang, Ting; Zhao, Yong; Yang, Xin; Zhang, Yuting; La, Guixiao; Wu, Kun; Zhang, Zhiming; Li, Xuanzhen

doi:10.1016/j.chemosphere.2016.02.003

Cited by 56 publications

(20 citation statements)

References 22 publications

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“…According to several studies, kidney is the main organ in the body where the development of chronic Pb toxicity can occur ( Bidlack, 2002 ; Brzóska et al, 2003 ). Howsoever, most part of the absorbed Pb all through chronic exposure is originally deposited in the liver before its transportation to the kidney by the bloodstream ( Zhai et al, 2014 ; Javed et al, 2016 ; Morcillo et al, 2016 ; Zhang S. et al, 2016 ; Ashraf and Tang, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Comparative Assessment of the Bioremedial Potentials of Potato Resistant Starch-Based Microencapsulated and Non-encapsulated Lactobacillus plantarum to Alleviate the Effects of Chronic Lead Toxicity

et al. 2018

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Lead (Pb) is a well-recognized and potent heavy metal with non-biodegradable nature and can induce the oxidative stress, degenerative damages in tissues, and neural disorders. Certain lactic acid bacterial strains retain the potential to mitigate the lethal effects of Pb. The present work was carried out to assess the Pb bio-sorption and tolerance capabilities of Lactobacillus plantarum spp. Furthermore, potato resistant starch (PRS)-based microencapsulated and non-encapsulated L. plantarum KLDS 1.0344 was utilized for bioremediation against induced chronic Pb toxicity in mice. The experimental mice were divided into two main groups (Pb exposed and non-Pb exposed) and, each group was subsequently divided into three sub groups. The Pb exposed group was exposed to 100 mg/L Pb(NO3)2 via drinking water, and non-Pb exposed group was supplied with plain drinking water during 7 weeks prolonged in vivo study. The accumulation of Pb in blood, feces, renal, and hepatic tissues and its pathological damages were analyzed. The effect of Pb toxicity on the antioxidant enzyme capabilities in blood, serum, as well as, on levels of essential elements in tissues was also calculated. Moreover, KLDS 1.0344 displayed remarkable Pb binding capacity 72.34% and Pb tolerance (680 mg/L). Oral administration of both non- and PRS- encapsulated KLDS 1.0344 significantly provided protection against induced chronic Pb toxicity by increasing fecal Pb levels (445.65 ± 22.28 μg/g) and decreasing Pb in the blood up to 137.63 ± 2.43 μg/L, respectively. KLDS 1.0344 microencapsulated with PRS also relieved the renal and hepatic pathological damages and improved the antioxidant index by inhibiting changes in concentrations of glutathione peroxidase, glutathione, superoxide dismutase, malondialdehyde, and activated oxygen species, which were affected by the Pb exposure. Overall, our results suggested that L. plantarum KLDS 1.0344 either in free or encapsulated forms hold the potentiality to deliver a dietetic stratagem against Pb lethality.

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Section: Introductionmentioning

confidence: 99%

Comparative Assessment of the Bioremedial Potentials of Potato Resistant Starch-Based Microencapsulated and Non-encapsulated Lactobacillus plantarum to Alleviate the Effects of Chronic Lead Toxicity

et al. 2018

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“…5a) were also enhanced by these three pretreatments. Under most conditions, ROS (H 2 O 2 and O 2 − ) can be efficiently scavenged by antioxidants, such as SOD, CAT and GR (Xie et al 2012; Zhang et al 2016b). In our study, pretreatments of CdCl 2 , NaCl and H 2 O 2 significantly decreased the CAT and GR activities in mycelia, whereas the SOD activity was induced by the three pretreatments, which were consistent with the results of gene expression (Fig.…”

Section: Discussionmentioning

confidence: 99%

Hydrogen-rich water alleviates the toxicities of different stresses to mycelial growth in Hypsizygus marmoreus

et al. 2017

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In plants, hydrogen gas (H2) enhances tolerance to several abiotic stresses, including salinity and heavy metals. However, the effect of H2 on fungal growth under different stresses remains largely unclear. In this study, hydrogen-rich water (HRW) was employed to characterize physiological roles and molecular mechanisms of H2 in the alleviation of three different stresses in basidiomycete Hypsizygus marmoreus. Our results showed that HRW treatment, of which the H2 concentration was 0.8 mM, significantly reduced the toxicities of CdCl2, NaCl and H2O2, leading to significantly improved mycelial growth and biomass. These beneficial effects could be attributed to a significantly decreased formation of malondialdehyde (MDA). Besides, HRW treatment significantly increased the activities of antioxidants (SOD, CAT and GR) as well as the gene expressions of these antioxidants (SOD, CAT, and GR) at the mRNA level. In vivo detection of reactive oxygen species (ROS), including H2O2 and O2 −, as well as lipid peroxidation provided further evidence that HRW could significantly improve tolerances of CdCl2, NaCl and H2O2. Furthermore, pyruvate kinase was activated in the mycelia treated with HRW, along with its induced gene expression, suggesting that HRW treatment enhanced the glucose metabolism. Taken together, our findings suggested that the usage of HRW could be an effective approach for contaminant detoxification in H. marmoreus, which was similar with the effects of HRW in plants, and such effects could be also beneficial in entire agricultural system.Electronic supplementary materialThe online version of this article (doi:10.1186/s13568-017-0406-1) contains supplementary material, which is available to authorized users.

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“…The total tolerance and metal uptake ability of a fungus is reliant on both bioaccumulation and biosorption (Iskandar et al, 2011;Joshi et al, 2011). The abilities of fungi to intracellularly accumulate (bioaccumulation) and extracellularly adsorb (biosorption) HMs may be dependent on one or more combinations of various biological strategies (Abd El Hameed et al, 2015;Machido et al, 2011;Romero et al, 2006;Zhang et al, 2016). These strategies can be harnessed to serve as means to remove HM toxicants from various substrates.…”

Section: Introductionmentioning

confidence: 99%

The Lead [Pb(II)] tolerance and uptake ability of four fungal species, two from the genus Penicillium and two from the genus Talaromyces were investigated in this study. The species were isolated from a polluted tributary and identified to be closest to P. canescens, P. simplicissimum, T. macrosporus and another Talaromyces sp. via PCR targeting their internal transcribed spacer 1 and 4 sequences. All isolates have tolerances for up to 2000 µg/mL and 3000 µg/mL Pb(II) on solid and liquid medium, respective

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et al. 2019

Appl Env Biotechnol

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The Lead [Pb(II)] tolerance and uptake ability of four fungal species, two from the genus Penicillium and two from the genus Talaromyces were investigated in this study. The species were isolated from a polluted tributary and identified to be closest to P. canescens, P. simplicissimum, T. macrosporus and another Talaromyces sp. via PCR targeting their internal transcribed spacer 1 and 4 sequences. All isolates have tolerances for up to 2000 µg/mL and 3000 µg/mL Pb(II) on solid and liquid medium, respectively. Both Penicillium isolates showed increasing removal rates dependent on initial Pb(II) concentration at 500 to 2000 µg/mL, while removal rates of both Talaromyces isolates were not significantly influenced by initial Pb(II) concentrations. The Pb(II) uptake of all isolates increased with increasing Pb(II) concentration but was depressed at 3000 µg/mL, with the exception of T. macrosporus. The recorded total uptake capacities for both Penicillium isolates in this study were higher than in most literature, at 7.0-407.4 mg/g and 50.8-412.6 mg/g for P. canescens and P. simplicissimum, respectively. The study also reported the exemplary Pb(II) uptake capacities of both Talaromyces isolates at 58.9-601.0 mg/g and 60.9-402.3 mg/g for T. macrosporus and Talaromyces sp., respectively. These results signify the excellent Pb(II) removal capabilities of all isolates which may further be developed for use as mycoremediation tools to remove Pb(II) from heavy metal contaminated environments.

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Improvement of tolerance to lead by filamentous fungus Pleurotus ostreatus HAU-2 and its oxidative responses

Cited by 56 publications

References 22 publications

Comparative Assessment of the Bioremedial Potentials of Potato Resistant Starch-Based Microencapsulated and Non-encapsulated Lactobacillus plantarum to Alleviate the Effects of Chronic Lead Toxicity

Comparative Assessment of the Bioremedial Potentials of Potato Resistant Starch-Based Microencapsulated and Non-encapsulated Lactobacillus plantarum to Alleviate the Effects of Chronic Lead Toxicity

Hydrogen-rich water alleviates the toxicities of different stresses to mycelial growth in Hypsizygus marmoreus

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