Efficient immobilization behavior and mechanism investigation of Pb(II) by Aspergillus tubingensis

Shan, Bing; Hao, Ruixia; Xu, Xiyang; Li, Jiani; Zhang, Junman; Li, Yinhuang; Ye, Yubo; Lu, Anhuai

doi:10.1007/s10529-022-03253-y

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…A. welwitschiae could decrease the attraction of rice roots to Meloidogyne graminicola and suppress the nematode infection by producing the active compound αβ-dehydrocurvularin ( Xiang et al, 2020 ). Previous studies have demonstrated that A. tubingensis had a wide range of bioactivities, including the degradation of polyester polyurethane ( Khan et al, 2017 ), the remediation of heavy metal contamination ( Shan et al, 2022 ), the control of plant diseases caused by Fusarium solani ( Kriaa et al, 2015 ), and the solubilization of rock phosphates with low solubility ( Reddy et al, 2002 ). Sikandar et al (2023) first reported the nematicidal activity of A. tubingensis against RKN.…”

Section: Discussionmentioning

confidence: 99%

Exploring the nematicidal mechanisms and control efficiencies of oxalic acid producing Aspergillus tubingensis WF01 against root-knot nematodes

Yang,

Dai,

et al. 2024

Front. Microbiol.

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Background and aimsRoot-knot nematodes (RKN; Meloidogyne spp.) are among the highly prevalent and significantly detrimental pathogens that cause severe economic and yield losses in crops. Currently, control of RKN primarily relies on the application of chemical nematicides but it has environmental and public health concerns, which open new doors for alternative methods in the form of biological control.MethodsIn this study, we investigated the nematicidal and attractive activities of an endophytic strain WF01 against Meloidogyne incognita in concentration-dependent experiments. The active nematicidal metabolite was extracted in the WF01 crude extract through the Sephadex column, and its structure was identified by nuclear magnetic resonance and mass spectrometry data.ResultsThe strain WF01 was identified as Aspergillus tubingensis based on morphological and molecular characteristics. The nematicidal and attractive metabolite of A. tubingensis WF01 was identified as oxalic acid (OA), which showed solid nematicidal activity against M. incognita, having LC50 of 27.48 μg ml–1. The Nsy-1 of AWC and Odr-7 of AWA were the primary neuron genes for Caenorhabditis elegans to detect OA. Under greenhouse, WF01 broth and 200 μg ml–1 OA could effectively suppress the disease caused by M. incognita on tomatoes respectively with control efficiency (CE) of 62.5% and 70.83%, and promote plant growth. In the field, WF01-WP and 8% OA-WP formulations showed moderate CEs of 51.25%–61.47% against RKN in tomato and tobacco. The combined application of WF01 and OA resulted in excellent CEs of 66.83% and 69.34% toward RKN in tomato and tobacco, respectively. Furthermore, the application of WF01 broth or OA significantly suppressed the infection of J2s in tomatoes by upregulating the expression levels of the genes (PAL, C4H, HCT, and F5H) related to lignin synthesis, and strengthened root lignification.ConclusionAltogether, our results demonstrated that A. tubingensis WF01 exhibited multiple weapons to control RKN mediated by producing OA to lure and kill RKN in a concentration-dependent manner and strengthen root lignification. This fungus could serve as an environmental bio-nematicide for managing the diseases caused by RKN.

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Section: Discussionmentioning

confidence: 99%

Exploring the nematicidal mechanisms and control efficiencies of oxalic acid producing Aspergillus tubingensis WF01 against root-knot nematodes

Yang,

Dai,

et al. 2024

Front. Microbiol.

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“…Fungi have gained a lot of interest as a viable alternative approach for the removal of water contaminants because of the carboxyl, phosphate and amine hydroxyl groups present on the surface of their cells (Legorreta-Castañeda et al, 2020), and they are produced in large quantities as wastes of various industrial processes. Several fungal species, such as Alternaria alternata and Trichoderma harzianum (Zghair & Jebar, 2020), Aspergillus piperis (De Wet & Brink, 2021), Aspergillus tubingensis (Shan et al, 2022), and Rhodotorula mucilaginosa (Tian et al, 2022), have all been employed to remove lead in various investigations.…”

Section: Introductionmentioning

confidence: 99%

Bioremoval of Lead from Polluted Waters Using the Fungus Talaromyces stipitatus and Its Impact on Male Albino Rats

Taha et al.

2023

Egypt. J. of Aquatic Biolo. and Fish.

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Lead (Pb) is one of the most serious environmental pollutants due to its accumulation in soil and water, which causes serious problems for human health and the environment. Biosorption using dead microbial biomass represents one of the most innovative, economically feasible, and environmentally safe tools for removing heavy metals. Therefore, the present study focused on removing lead using Talaromyces stipitatus as a dead fungal biomass and evaluating its impact on animal toxicity. Lead-tolerant fungi were isolated from polluted sites, and T. stipitatus was chosen for the biosorption investigation based on its distinctive characteristics and identified according to its morphological and molecular characteristics then submitted to the GenBank database under accession number OQ691598. The biosorption capacity and efficiency of Pb were evaluated at 28±2°C with various parameters, which included pH, contact time and biomass concentration. Our findings showed that the highest significant biosorption capacity (56.10 mg/g) and efficiency (96.62%) for lead removal from aqueous solutions (lead initial concentration, 58 mg/L) were achieved at pH 6 and 30 minutes of contact time, with a biomass content of 1 g/L. Three groups of male albino rats were used after the biosorption study; the negative control group orally received double-distilled water only; the positive control group orally received Pb aqueous solution (58 mg/L) for 30 days, and the treatment group orally received Pb aqueous solution (58 mg/L) after being treated with T. stipitatus as biosorbent material for 30 days. The findings revealed that Pb induced a significant decrease in weight gain and relative weights of liver and testis, sperm count and motility, as well as serum total protein and albumin levels, but it induced a significant increase in relative weights of lung, brain, and prostate, serum aspartate aminotransferase and alanine aminotransferase activities, serum urea, creatinine, and uric acid levels, sperm abnormalities, and bioaccumulation of Pb traces in liver and kidney tissues with several histopathological changes in the liver, kidney, testis and epididymis of male albino rats. The treatment group showed considerable improvements in each of the aforementioned results in animals. These findings suggest that T. stipitatus is capable of removing lead from polluted waters without posing any health risks to animals. To the best of our knowledge, no previous report has documented the use of T. stipitatus for lead removal and its effect on animal toxicity.

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Lead Removal from Aqueous Solutions Using Different Biosorbents

Acosta

Rodríguez

Cardenas

et al. 2023

Environmental Science and Engineering

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Efficient immobilization behavior and mechanism investigation of Pb(II) by Aspergillus tubingensis

Cited by 6 publications

References 17 publications

Exploring the nematicidal mechanisms and control efficiencies of oxalic acid producing Aspergillus tubingensis WF01 against root-knot nematodes

Exploring the nematicidal mechanisms and control efficiencies of oxalic acid producing Aspergillus tubingensis WF01 against root-knot nematodes

Bioremoval of Lead from Polluted Waters Using the Fungus Talaromyces stipitatus and Its Impact on Male Albino Rats

Lead Removal from Aqueous Solutions Using Different Biosorbents

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