Aspergillus niger LBM 134 isolated from rotten wood and its potential cellulolytic ability

Díaz, Gabriela Verónica; Coniglio, Romina Olga; Chungara, Clara Inés; Zapata, Pedro Darío; Villalba, Laura Lidia; Fonseca, María Isabel

doi:10.1080/21501203.2020.1823509

Cited by 11 publications

(4 citation statements)

References 55 publications

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“…There were previous studies on the enzymatic hydrolytic ability of Aspergillus fungi that were isolated from the Paranaense rainforest (Argentina), and the ability of these fungi to undergo cell degradation was evaluated using Congo staining and uorescence panel tests for carboxymethylcellulase, betaglucosidase, and cellobiohydrolase; all the results were positive. This study demonstrated the ability of Aspergillus fungi to process cellulosic biomass (Díaz et al 2021).…”

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confidence: 70%

Unveiling Fungal Proficiency in Microplastic Degradation: A Comprehensive Research Investigation

ARIF,

Hassan,

Fakhry

et al. 2024

Preprint

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Microplastics (MPs) are prevalent pollutants in environments that are colonized by various groups of microbes. Fungi are considered among the most efficient microbial degraders of MPs because they produce salient enzymes and can survive on recalcitrant compounds with limited nutrients. While most studies have focused on the occurrence of MPs in wastewater treatment systems, MP degradation in fresh water and wastewater is generally poorly understood. Therefore, the current study included the isolation of some genera of fungi from the Tigris River water environment that have the ability to degrade MPs in both natural and artificial environments utilizing synthetic media. Using weight loss measurements, Fourier transform infrared spectroscopy (FTIR) was used to identify the chemical structure of the plastic polymers, and scanning electron microscopy (SEM) was used to determine the size and morphology of the microplastics and the degree of plastic consumed by the aquatic fungus. The biodegradation of high-density polyethylene (HDPE) and polystyrene (PS) by the aquatic fungus Aspergillus carbonarius and Eurotium sp. was also examined. Overall, Aspergillus carbonarius and Eurotium sp. were able to degrade HDPE more efficiently than PS without requiring any prior microplastic treatment. Therefore, the ability of fungi to degrade MPs was confirmed by weight loss, FTIR, and SEM data. Therefore, the results indicate that the isolated fungus has a promising future for polymer breakdown in both artificial and natural environments. Investigating the long-term impacts and gaining a deeper knowledge of the mechanisms of microplastic disintegration should be the main goals of future research.

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Section: Figure (7)mentioning

confidence: 70%

Unveiling Fungal Proficiency in Microplastic Degradation: A Comprehensive Research Investigation

ARIF,

Hassan,

Fakhry

et al. 2024

Preprint

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“…Also, some Aspergillus sp. reported to have the potential cellulolytic ability are Aspergillus niger [12] , A. fumigatus [13] , A. aculeatus [14] . Hypothetically, the addition of a cellulolytic Aspergillus sp.…”

Section: Introductionmentioning

confidence: 99%

The use of cellulolytic Aspergillus sp. inoculum to improve the quality of Pineapple compost

et al. 2023

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<abstract> Pineapple litter has a complex polymer of cellulose, hemicellulose, and lignin, which makes them difficult to decompose. However, pineapple litter has great potential to be a good organic material source for the soil when completely decomposed. The addition of inoculants can facilitate the composting process. This study investigated whether the addition of cellulolytic fungi inoculants to pineapple litters improves the efficiency of the composting processes. The treatments were KP1 = pineapple leaf litter: cow manure (2:1), KP2 = pineapple stem litter: cow manure (2:1), KP3 = pineapple leaf litter: pineapple stem litter: cow manure P1 (leaf litter and 1% inoculum), P2 (stem litter and 1% inoculum), and P3 (leaf + stem litters and 1% inoculum). The result showed that the number of <italic>Aspergillus</italic> sp. spores on corn media was 5.64 x 107 spores/mL, with viability of 98.58%. <italic>Aspergillus</italic> sp. inoculum improved the quality of pineapple litter compost, based on the enhanced contents of C, N, P, K, and the C/N ratio, during the seven weeks of composting. Moreover, the best treatment observed in this study was P1. The C/N ratios of compost at P1, P2, and P3 were within the recommended range of organic fertilizer which was 15–25%, with a Carbon/Nitrogen proportion of 11.3%, 11.8%, and 12.4% (P1, P2, and P3), respectively. </abstract>

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“…The degradation and utilization of cellulose by fungi not only plays a positive role in the carbon cycle, but also brings great commercial value in industrial production [ 1 – 3 ]. At present, many scholars have explored filamentous fungi, such as Trichoderma reesei, Penicillium oxalicum , and Aspergillus niger in enzyme production [ 4 – 6 ]. By using cellulose as raw materials to efficiently produce cellulase, it was found that the mycelial growth in the process of decomposing cellulose was promoted [ 4 – 6 ].…”

Section: Introductionmentioning

confidence: 99%

“…At present, many scholars have explored filamentous fungi, such as Trichoderma reesei, Penicillium oxalicum , and Aspergillus niger in enzyme production [ 4 – 6 ]. By using cellulose as raw materials to efficiently produce cellulase, it was found that the mycelial growth in the process of decomposing cellulose was promoted [ 4 – 6 ]. As macro-fungi, mushrooms are also an important agent of degradation of cellulose [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Transcription factor FfMYB15 regulates the expression of cellulase gene FfCEL6B during mycelial growth of Flammulina filiformis

et al. 2022

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Background Cellulose degradation can determine mycelial growth rate and affect yield during the growth of Flammulina filiformis. The degradation of cellulose requires the joint action of a variety of cellulases, and some cellulase-related genes have been detected in mushrooms. However, little is known about the transcriptional regulatory mechanisms of cellulose degradation. Results In this study, FfMYB15 that may regulate the expression of cellulase gene FfCEL6B in F. filiformis was identified. RNA interference (RNAi) showed that FfCEL6B positively regulated mycelial growth. Gene expression analyses indicated that the expression patterns of FfCEL6B and FfMYB15 in mycelia cultured on the 0.9% cellulose medium for different times were similar with a correlation coefficient of 0.953. Subcellular localization and transcriptional activity analyses implied that FfMYB15 was located in the nucleus and was a transcriptional activator. Electrophoretic mobility shift assay (EMSA) and dual-luciferase assays demonstrated that FfMYB15 could bind and activate FfCEL6B promoter by recognizing MYB cis-acting element. Conclusions This study indicated that FfCEL6B played an active role in mycelial growth of F. filiformis and was regulated by FfMYB15.

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Aspergillus niger LBM 134 isolated from rotten wood and its potential cellulolytic ability

Cited by 11 publications

References 55 publications

Unveiling Fungal Proficiency in Microplastic Degradation: A Comprehensive Research Investigation

Unveiling Fungal Proficiency in Microplastic Degradation: A Comprehensive Research Investigation

The use of cellulolytic <i>Aspergillus</i> sp. inoculum to improve the quality of Pineapple compost

Transcription factor FfMYB15 regulates the expression of cellulase gene FfCEL6B during mycelial growth of Flammulina filiformis

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