Bioremediation of PCP by Trichoderma and Cunninghamella Strains Isolated from Sawdust

Sing, Ngieng Ngui; Zulkharnain, Azham; Roslan, Hairul Azman; Assim, Zani; Husaini, Ahmad

doi:10.1590/s1516-8913201402852

Cited by 14 publications

(9 citation statements)

References 48 publications

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“…UMAS‐SD12 isolated from sawdust exhibited the degradation of fungicide pentachlorophenol (PCP) up to 51·7% after 15 days of cultivation (Sing et al . 2014), while the herbicide isoproturon could be hydroxylated, demethylated and partially degraded by Cunninghamella elegans (Hangler et al . 2007).…”

Section: Resultsmentioning

confidence: 99%

Filamentous fungi with high paraquat‐degrading activity isolated from contaminated agricultural soils in northern Thailand

Wongputtisin

Supo

Suwannarach

et al. 2020

Lett Appl Microbiol

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The contamination of paraquat (1,1′‐dimethyl‐4,4′‐bipyridylium dichloride) herbicide from the farming area has become a public concern in many countries. This herbicide harms to human health and negatively effects the soil fertility. Several methods have been introduced for the remediation of paraquat. In this study, 20 isolates of the paraquat‐tolerant fungi were isolated from the contaminated soil samples in northern Thailand. We found that isolate PRPY‐2 and PFCM‐1 exhibited the highest degradation activity of paraquat on synthetic liquid medium. About 80 and 68% of paraquat were removed by PRPY‐2 and PFCM‐1 respectively after 15 days of cultivation. Based on the morphological characteristic and molecular analysis, the fungal isolate PRPY‐2 and PFCM‐1 were identified as Aspergillus tamarii and Cunninghamella sp. respectively. The biosorption of paraquat on these fungal mycelia was also investigated. It was found that only 8–10% of paraquat could be detected on their mycelia, while 24–46% of paraquat was degraded by fungal mycelia. This is the first report on paraquat degrading ability by A. tamarii and Cunninghamella sp. It is demonstrated that these filamentous fungi are promising microorganisms available for remediation of paraquat contaminated environment.

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Section: Resultsmentioning

confidence: 99%

Filamentous fungi with high paraquat‐degrading activity isolated from contaminated agricultural soils in northern Thailand

Wongputtisin

Supo

Suwannarach

et al. 2020

Lett Appl Microbiol

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“…are the most prevalent species able to grow successfully in stringent weather conditions, with some, including Cunninghamella sp. being common in soil [29], with the ability to grow on a variety of agricultural produce such as maize, peanuts and tubers [30,31].…”

Section: Biological Reduction Of Cyanogensmentioning

confidence: 99%

“…It has also been reported that fruit or produce has trace elements, such as Ca, Na, K and Zn, and low relative molecular weight hydrocarbons, including proteins and moisture, providing conditions which facilitate microbial growth and thus spoilage [34,35]. Owing to this, some microorganisms produce hydrolases, reducing primary compounds in produce to by-products, furthering physico-chemical changes in the environment in which they are leached [30]. These seem to be the ideal conditions in which cyanide reduction biocatalysts proliferate, i.e.…”

Section: Biological Reduction Of Cyanogensmentioning

confidence: 99%

“…For example, Sing et al [30] successfully isolated a fungus, Cunninghamella sp. UMAS SD12 from sawdust, with an ability to biodegrade 51.7% pentachlorophenol (PCP) within 15 days in a controlled static environment.…”

Section: Biological Reduction Of Cyanogensmentioning

confidence: 99%

“…These organisms contribute to the characteristics of the soil that directly inluence soil productivity and crop yield in the agricultural sector [52][53][54], although some have been shown to exhibit pathogenicity toward mature produce. For example, during the growth and up to the harvest stage of cassava tubers, several pathogenic organisms with mycotoxin-production potential can dominate several other types of bacteria and fungi on the tuber and in cassava-cultivated soils [30]. Some of these organisms are resistant even to the free cyanide in cassava, and with their inherent characteristics, such as their predisposition for survival, they produce mycotoxins such as ochratoxin A, alatoxins, fumonisin B, pyranonigrin A, tensidol B, funalenone, naphtho-y-pyrones, deoxynivalenol (DON) and malformins [55][56][57].…”

Section: Production Of Mycotoxinsmentioning

confidence: 99%

See 2 more Smart Citations

Leaching of Cyanogens and Mycotoxins from Cultivated Cassava into Agricultural Soil: Effects on Groundwater Quality

Itoba-Tombo¹,

Ntwampe²,

Mudumbi³

2017

Aflatoxin-Control, Analysis, Detection and Health Risks

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Cyanogens and mycotoxins are vital in protecting lora against predation. Nevertheless, their increased concentrations and by-products in agricultural soil could result in produce contamination and decreased crop yield and soil productivity. When exposed to unsuitable weather conditions, agricultural produce such as cassava is susceptible to bacterial and fungal atack, culminating in spoilage, particularly in arid and semi-arid regions, and contributing to cyanogen and mycotoxins loading of the arable land. The movement of cyanogen including mycotoxins in such soil can result in sub-surface and/ or groundwater contamination, thus deteriorating the soil's environmental health and negatively afecting wildlife and humans. Persistent cyanogen and mycotoxins loading into agricultural soil changes its physico-chemical characteristics and biotic parameters. These contaminants and their biodegradation by-products can be dispersed from soil's surface and sub-surface to groundwater systems by permeation and percolation through the upper soil layer into underground water reservoirs, which can result in their exposure to humans and wildlife. Thus, an assessment and monitoring of cyanogen and mycotoxins loading impacts on arable land and groundwater in communities with minimal resources should be done. Overall, these toxicants impacts on agricultural soil's biotic community, afect soil's aggregates, functionality and lead to the soil's low productivity, cross-contamination of fresh agricultural produce.

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Trichoderma spp.: Expanding Potential beyond Agriculture

Ram¹,

Vaishnav

Singh

2020

Soil Biology

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Bioremediation of PCP by Trichoderma and Cunninghamella Strains Isolated from Sawdust

Abstract: Four fungal isolates, SD12, SD14, SD19 and SD20 isolated

Cited by 14 publications

References 48 publications

Filamentous fungi with high paraquat‐degrading activity isolated from contaminated agricultural soils in northern Thailand

Filamentous fungi with high paraquat‐degrading activity isolated from contaminated agricultural soils in northern Thailand

Leaching of Cyanogens and Mycotoxins from Cultivated Cassava into Agricultural Soil: Effects on Groundwater Quality

Trichoderma spp.: Expanding Potential beyond Agriculture

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