Biodegradation of Lignin

Hatakka, Annele

doi:10.1002/3527600035.bpol1005

Cited by 172 publications

(157 citation statements)

References 282 publications

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“…Berg (2014) reported that groups of microorganisms that cause white rot and brown rot can be related to N and Mn contents. Fungi that cause white rot have the ability to completely degrade lignin and lignified tissues, whereas microorganisms that cause brown-colored rot are limited to breaking the side chain of the aromatic nucleus of the lignin molecule (Hatakka, 2001). Our results, observed in the field, showed higher amounts of white rot in the combinations of gliricidia, whereas brown rot was observed in greater amounts in the combinations with leucena.…”

Section: Discussionsupporting

confidence: 37%

“…Berg (2014) reports that the litter in which white rot fungi dominates, degradation would remain unimpeded, especially at low N concentrations, which was also observed in our study, where combinations with gliricidia showed faster decomposition than combinations with leucaena. According to Hatakka (2001) almost all fungi of white rot have Mn peroxide (MnP) and their activity would be related to the availability of Mn. In contrast, no brown rot fungus was found with MnP.…”

Section: Discussionmentioning

confidence: 99%

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Decomposition and Nutrient Release of Tree Legumes in an Agroforest System

Portela¹,

Silva²,

Santos³

et al. 2018

JAS

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The research compared biomass production and nutrient release in an alley cropping system in two collection methods, the litterbag method and the direct collection method (Morley, Bennett, & Clark, 1964). The system was implemented in 2015 at 2017, at the Maranhão Federal University, Maranhão, Brazil. The experiment was a randomized block design with four treatments, consisting of leucaena+sombreiro (Leucaena leucocephala and Clitoria fairchildiana), leucena+acacia (Leucaena leucocephala and Acacia mangium), gliricidia+sombreiro (Gliricidia sepium and Clitoria fairchildiana) and gliricidia+acacia (Gliricidia sepium and Acacia mangium). In order to determine the remaining dry matter, nutrient release (N, P, K, Ca, Mg and Mn), the decomposition constants and the half-lives times of plant residues, 100 g of fresh material were conditioned in litterbags (50 g of each species), arranged on the soil surface. The second method was done by randomly throwing a collector on each plot in the same dimensions of the litterbags (0.40 x 0.40 m) and collecting the litter. For the two methods samples were collected at 0, 30, 60, 90 and 120 days after the start of the experiment. The litterbags method showed a higher C/N ratio at day 30 up to 120 days, which implies that this method is providing a different environment from the litter, where it would be overestimating the C/N ratio and retarding the decomposition. The G+S and G+A combinations were more rapidly decomposed than the combinations of L+S and L+A. The following order of release was established for the litterbags method: P > N > K > Ca > Mn > Mg, and for the method of collecting the litter: N > P > Ca > Mg > K > Mn.

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Section: Discussionsupporting

confidence: 37%

Section: Discussionmentioning

confidence: 99%

Decomposition and Nutrient Release of Tree Legumes in an Agroforest System

Portela¹,

Silva²,

Santos³

et al. 2018

JAS

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“…Brown rot fungi are well characterised as rapid cellulose and hemicellulose degraders, and they access plant polysaccharides by potentially modifying or degrading lignin (Hatakka 2005). These fungi are the major invaders of forest biomass and wood-based constructions.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of genome-wide plant biomass-degrading CAZymes in white rot, brown rot and soft rot fungi

2017

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We have conducted a genome-level comparative study of basidiomycetes wood-rotting fungi (white, brown and soft rot) to understand the total plant biomass (lignin, cellulose, hemicellulose and pectin) -degrading abilities. We have retrieved the genome-level annotations of well-known 14 white rot fungi, 15 brown rot fungi and 13 soft rot fungi. Based on the previous literature and the annotations obtained from CAZy (carbohydrate-active enzyme) database, we have separated the genome-wide CAZymes of the selected fungi into lignin-, cellulose-, hemicellulose- and pectin-degrading enzymes. Results obtained in our study reveal that white rot fungi, especially Pleurotus eryngii and Pleurotus ostreatus potentially possess high ligninolytic ability, and soft rot fungi, especially Botryosphaeria dothidea and Fusarium oxysporum sp., potentially possess high cellulolytic, hemicellulolytic and pectinolytic abilities. The total number of genes encoding for cytochrome P450 monooxygenases and metabolic processes were high in soft and white rot fungi. We have tentatively calculated the overall lignocellulolytic abilities among the selected wood-rotting fungi which suggests that white rot fungi possess higher lignin and soft rot fungi potentially possess higher cellulolytic, hemicellulolytic and pectinolytic abilities. This approach can be applied industrially to efficiently find lignocellulolytic and aromatic compound-degrading fungi based on their genomic abilities.

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“…Li et al (2008) noted that the use of solid state fermentation of the enzymatic activities produced MnP (9.67 UI.L -1 ) as compared to the liquid fermentation (0.044 UI.L -1 ) especially with agroindustrial residues, which allows the concentrated product (Liu et al, 2011). Hatakka (2001) reported that the degradation of lignin by L. edodes occurred during the secondary metabolism and nitrogen reached high levels of lignocellulosic degradation.…”

Section: Treatments Daysmentioning

confidence: 99%

Influence of nitrogen sources on the enzymatic activity and grown by Lentinula edodes in biomass Eucalyptus benthamii

et al. 2015

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Lignocellulose is the most abundant environmental component and a renewable organic resource in soil. There are some filamentous fungi which developed the ability to break down and use cellulose, hemicellulose and lignin as an energy source. The objective of this research was to analyze the effect of three nitrogen resources (ammonium sulfate, saltpetre, soybean) in the holocellulolitic activity of Lentinula edodes EF 50 using as substrate sawdust E. benthamii. An experimental design mixture was applied with repetition in the central point consisting of seven treatments (T) of equal concentrations of nitrogen in ammonium sulfate, potassium nitrate and soybean. The enzymatic activity of avicelase, carboxymetilcellulase, β-glucosidase, xylanases and manganese peroxidase was determined. The humidity, pH, water activity (a w ) and qualitative analysis of mycelial growth in 8 times of cultivation were evaluated. The results showed negative effect on enzyme production in treatments with maximum concentration of ammonium sulfate and potassium nitrate. The treatments with cooked soybean flour expressed higher enzymatic activities in times of 3, 6 and 9 days of culture, except in the activity of manganese peroxidase. The highest production was observed in the treatment with ammonium sulfate, and soybean (83.86 UI.L -1 ) at 20 days of cultivation.

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Biodegradation of Lignin

Abstract: Introduction Historical Outline Bacteria and Microfungi Actinomycetes Other Bacteria Soft‐Rot Fungi and Other Microfungi Brown‐Rot Basidiomycetes White‐Rot Basidiomycetes Mineralization of 14 … Show more

Cited by 172 publications

References 282 publications

Decomposition and Nutrient Release of Tree Legumes in an Agroforest System

Decomposition and Nutrient Release of Tree Legumes in an Agroforest System

Comparative study of genome-wide plant biomass-degrading CAZymes in white rot, brown rot and soft rot fungi

Influence of nitrogen sources on the enzymatic activity and grown by Lentinula edodes in biomass Eucalyptus benthamii

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