Depolymerizing Activities of Aromatic Hydrocarbon Degrading Phyllosphere Fungi in Sri Lanka

Kannangara, S.; Undugoda, L.J.S.; Rajapaksha, Nipuna; Abeywickrama, Krishanthi

doi:10.4172/2155-6199.1000372

Cited by 5 publications

(5 citation statements)

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“…Highly abundant ligninolytic enzymes in the fungi are xylanases (for hemicellulose), and cellulases (for cellulose). laccases and peroxidases are the two main types of ligninolytic enzymes that are involved in lignolysis (Kannangara et al., 2016). From them, the major ligninolytic enzymes lignin peroxidase, laccase, and manganese peroxidase perform a key role in bioremediation of environmental contaminants such as PAHs.…”

Section: Resultsmentioning

confidence: 99%

Depolymerization of polyaromatic hydrocarbons by Penicillium spp. inhabit the phyllosphere of urban ornamental plants

Dharmasiri

Undugoda

Nilmini

et al. 2022

Environmental Quality Mgmt

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A variety of anthropogenic sources release hazardous polyaromatic hydrocarbons (PAHs) into the phyllosphere which is an excellent niche for diverse fungi, and some of them have PAHs degradation capabilities. Therefore, this research attempted to determine the PAHs (phenanthrene, anthracene, naphthalene, and pyrene) degradation capability of phyllosphere inhabited Penicillium species. The leaf samples were collected from highly polluted urban areas (Panchikawatta, Pettah, Orugodawatta, Maradana, Sapugaskanda, and Colombo Fort) in Sri Lanka to isolate fungal species inhabiting the phyllosphere. Furthermore, their distribution patterns among the leaf tissue layers were studied using bright-field microscopic observations. Moreover, the best PAH degraders were screened out using plate assays and confirmed through High Performance Liquid Chromatography (HPLC) analysis. Further, their enzymatic activities during the PAHs degradation were analyzed. As per the microscopic observations, the highest fungal distribution was in the upper epidermis of the leaves followed by the fungal distribution in the interspaces of palisade mesophyll layers. Out of isolated fungal species, two Penicillium spp. (Penicillium citrinum P 23 B-91 and Penicillium griseofulvum P 9 B -30) showed the highest PAHs (phenanthrene, anthracene, naphthalene, and pyrene) degradation capabilities. Manganese peroxidase (MnP) enzyme dominated phenanthrene degradation in P. griseofulvum P 9 B -30, which showed the highest phenanthrene degradation ability (61%). In addition, P. citrinum P23B-91 was good at degrading anthracene (88%) and also displayed a higher MnP activity during the anthracene degradation than laccase and lignin peroxidase activities. The discoveries from the toxicity assay during the PAHs degradation processes revealed that the produced byproducts had no toxic effects on the fungal growth cycle and the phyllosphere. Therefore this phyllosphere Penicillium spp. are ideal for the bioremediation of polluted air in urbanized areas.

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Section: Resultsmentioning

confidence: 99%

Depolymerization of polyaromatic hydrocarbons by Penicillium spp. inhabit the phyllosphere of urban ornamental plants

Dharmasiri

Undugoda

Nilmini

et al. 2022

Environmental Quality Mgmt

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“…In environment, the phyllosphere microbiomes have been recognized for the bioremediation of the pollutants. In a report, fungi Penicillium oxalicum associated with the leaves of Amaranthus cruentus was reported for aromatic hydrocarbons as the strain was reported for exhibiting laccases, and lignin peroxidases enzyme activity [4]. In another report, two bacterial strain, Alcaligenes sp.…”

Section: Ajar Nath Yadavmentioning

confidence: 99%

“…In another report, two bacterial strain, Alcaligenes sp. and A. feacalis isolated from the Ervatamia divaricata, Hibiscus rosa-sinensis, Ixora chinensis, and Amaranthus cruentus was reported for degradation of naphthalene and phenanthrene [4]. plant tissues could be either transmitted horizontally, via seed from generation to generation or obtained from the atmosphere which is known as vertical transmission [5].…”

Section: Ajar Nath Yadavmentioning

confidence: 99%

Phytomicrobiomes for agro-environmental sustainability

Yadav¹

2021

J App Biol Biotech

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“…Phenanthrene can be degraded by Pleurotus ostreatus [98], Phanerochaete chrysosporium [99][100][101], Phanerochaete sordida [100,102], Ganoderma lucidum [103], Trametes versicolor [104]. Naphthalene is degraded by Penicillium oxalicum [105], Penicillium sp. [106], Penicillium fastigiata, and Penicillium digitatum [107].…”

Section: Mycoremediation Of Petroleum-contaminated Soilsmentioning

confidence: 99%

Bioremediation of Petroleum-Contaminated Soil

Ravi¹,

Gupta²,

Verma³

2022

Crude Oil - New Technologies and Recent Approaches

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Petroleum is not only an important energy resource to boost economic development but also a major pollutant source of soil. Petroleum toxicity can cause an adverse impact on the environment, as well as has negative effects for both animals and humans due to its carcinogenic nature. Therefore, its removal from the environment becomes a matter of concern. Although a lot of techniques are in use for remediation of petroleum-contaminated soil, exploitation of fungal ability provides a sustainable solution for this due to their ability to survive in harsh environmental conditions. Mycoremediation is the bioremediation technique employed for the removal of toxic compounds using fungal biomass. The fungi have been proved as a potential biomass degrader for complex organic compounds, resulting in the production of versatile extracellular enzymes. In this chapter, we have highlighted the basic concept of mycoremediation, the enzymatic system involved in the degradation process, the mechanism of fungal degradation, and factors affecting the degradation process. The chapter also provides useful insight for greater future understanding and improvement of the technique towards solving the problem of petroleum-contaminated soils.

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Depolymerizing Activities of Aromatic Hydrocarbon Degrading Phyllosphere Fungi in Sri Lanka

Cited by 5 publications

References 0 publications

Depolymerization of polyaromatic hydrocarbons by Penicillium spp. inhabit the phyllosphere of urban ornamental plants

Depolymerization of polyaromatic hydrocarbons by Penicillium spp. inhabit the phyllosphere of urban ornamental plants

Phytomicrobiomes for agro-environmental sustainability

Bioremediation of Petroleum-Contaminated Soil

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