Scots pine (Pinus sylvestris) bark composition and degradation by fungi: Potential substrate for bioremediation

Valentín, Lara; Kluczek-Turpeinen, Beata; Willför, Stefan; Hemming, Jarl; Hatakka, Annele; Steffen, Kari; Tuomela, Marja

doi:10.1016/j.biortech.2009.11.052

Cited by 81 publications

(44 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is known that spruce wood is a complex substrate for the recovery of wood-degrading enzymes, since water-soluble constituents such as phenols, sugars, organic acids, xylo-oligosaccharides and proteins all act as inhibitors of hydrolytic enzymes (e.g., Lagaert et al, 2009; Kim et al, 2011). Nevertheless, the effect of wood extracts on enzyme recovery in this study was expected to be minimal as was previously reported by Valentín et al (2010). …”

Section: Discussionsupporting

confidence: 53%

Loss of diversity in wood-inhabiting fungal communities affects decomposition activity in Norway spruce wood

Valentín

Rajala²,

Peltoniemi³

et al. 2014

Front. Microbiol.

View full text Add to dashboard Cite

Hundreds of wood-inhabiting fungal species are now threatened, principally due to a lack of dead wood in intensively managed forests, but the consequences of reduced fungal diversity on ecosystem functioning are not known. Several experiments have shown that primary productivity is negatively affected by a loss of species, but the effects of microbial diversity on decomposition are less studied. We studied the relationship between fungal diversity and the in vitro decomposition rate of slightly, moderately and heavily decayed Picea abies wood with indigenous fungal communities that were diluted to examine the influence of diversity. Respiration rate, wood-degrading hydrolytic enzymes and fungal community structure were assessed during a 16-week incubation. The number of observed OTUs in DGGE was used as a measure of fungal diversity. Respiration rate increased between early- and late-decay stages. Reduced fungal diversity was associated with lower respiration rates during intermediate stages of decay, but no effects were detected at later stages. The activity of hydrolytic enzymes varied among decay stages and fungal dilutions. Our results suggest that functioning of highly diverse communities of the late-decay stage were more resistant to the loss of diversity than less diverse communities of early decomposers. This indicates the accumulation of functional redundancy during the succession of the fungal community in decomposing substrates.

show abstract

Section: Discussionsupporting

confidence: 53%

Loss of diversity in wood-inhabiting fungal communities affects decomposition activity in Norway spruce wood

Valentín

Rajala²,

Peltoniemi³

et al. 2014

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…The lignin content was similar to the value of 33,7% reported by Miranda et al (2012) for P. sylvestris bark and to the 34,2 -33,2% for P. pinaster bark (Vázquez et al 1987a, Fradinho et al 2002, but higher than the 24,9% reported for P. densiflora bark (Kofujita et al 1999) to the 20-35 % for Pinus radiata bark (Moya-Villablanca et al 2013) and to the 25,5 % for Pinus brutia (Sahin and Arslan 2011). The holocellulose content obtained here was similar to the values of 37,6% and 40,1% reported for P. sylvestris bark (Miranda et al 2012, Valentín et al 2010) and 48,4% for P. pinaster bark (Fradinho et al 2002) and higher than the 25,0-32,1% reported by Vázquez et al (1987b) for P. pinaster bark, however for the P. brutia bark Sahin and Arslan (2011) refer to higher values of holocellulose 74,5 %. When stone pine bark was extracted with 1% NaOH about 42,4% of the bark material was solubilized.…”

Section: Bark Chemical Compositionsupporting

confidence: 63%

Fractioning of bark of Pinus pinea by milling and chemical characterization of the different fractions

Miranda

Mirra

Gominho

et al. 2017

Maderas, Cienc. tecnol.

View full text Add to dashboard Cite

The bark of stone pine (Pinus pinea) from 50 year old trees grown in Portugal was submitted to grinding and fractioning into different particles sizes. The trees had a thick bark with an average 3,7 cm constituted mainly by the periderm and rhytidome (3,2 cm).The bark fractured easily into particles: yield of fines was low, and 74,0% of the particles were over 2 mm. The chemical composition, as a mass weighed average of all granulometric fractions showed a content of 1,1% ash 20,6% extractives (91% of which polar extractives) 2,2% suberin, 43,0% lignin and 37,6% holocellulose. The percentage of material dissolved by extraction with 1% NaOH was 42,3%. The chemical characterization of the different granulometric fractions showed that extractives were present preferentially in the finest fractions (<80 mesh and 60-80 mesh), representing 34-35%, particularly with enrichment in ethanol soluble extractives, that also showed lower content of lignin. The coarser fractions contained higher proportions of lignin and holocellulose. P. pinea bark grinding and fractionation by particle size may be used to selectively enrich the finest fractions in soluble materials, while the coarser fractions tend to have higher holocellulose content and will be therefore more suitable for carbohydrate related uses.

show abstract

“…Per unit of dry matter, total N contents were 30.4 (RFM), 4.1 (RPB), and 14.5 (RCR) g kg −1 , mineral N contents were 1.3 (RFM), 0.02 (RPB), and 0.1 (RCR) g kg −1 , C/N ratios were 12 (RFM), 122 (RPB), and 28 (RCR), and dry matter contents were 0.36 (RFM), 0.50 (RPB), and 0.41 (RCR). Pine bark was assumed to be the most recalcitrant amendment due to its high C/N ratio and high cellulose and lignin contents (Valentín et al, 2010), while crop residues were assumed to be most easily decomposable due to their relatively low C/N ratio and unaltered plant tissue composition. Farmyard manure had a low C/N ratio but was assumed to be of medium decomposability due to stabilization processes that occur during the storage of manure (Eghball et al, 1997), which lasted 3 to 4 mo in the present study.…”

Section: Incubation Experiments Recent Amendment Treatmentmentioning

confidence: 99%

Influence of Soil Amendment History on Decomposition of Recently Applied Organic Amendments

Nett

Ruppel

Ruehlmann

et al. 2012

Soil Science Society of America Journal

View full text Add to dashboard Cite

Predicting N mineralization from organic amendments is necessary to match crop N demand with N availability, especially in organic farming systems, which mainly rely on organic fertilization. Because decomposition is a multilevel process infl uenced by numerous factors, however, the prediction of N availability to plants is oft en inaccurate. Soil microorganisms play a key role in the turnover of organic matter, which they decompose to obtain mineral nutrients and energy. Apart from abiotic factors such as soil temperature, soil water content, and soil aeration, the properties of the organic amendment itself aff ect the decomposition process, partly via their eff ect on the soil microfl ora. Relationships between the chemical composition of organic amendments and their C and N Long-term use of organic soil amendments, compared with unamended or mineral fertilized soils, can change soil organic matter content, microbial biomass content, the microbial community structure, and the activity of enzymes involved in organic matter decomposition. It is not clear, however, whether long-term use of organic amendments, by means of these changes, leads to modifi ed decomposition rates of newly added organic amendments. Therefore, this study was used to test the hypothesis that amendment history has an infl uence only on the decomposition of recalcitrant organic amendments and not on less recalcitrant organic amendments. Soils used for experimentation were taken from a fi eld experiment where contrasting organic amendment regimes of farmyard manure, pine (Pinus sylvestris L.) bark, vegetable crop residues, and an unamended control had been applied for 35 yr. In a full factorial, laboratory-based incubation experiment, each soil was treated with each of these amendments and net C and N mineralization and microbial biomass C contents were monitored during a 147-d period. Collected data were then used to estimate gross turnover rates of newly added amendments with a modeling approach based on the soil organic matter module of the Daisy model. The modeling results suggested that the turnover of farmyard manure and pine bark, not however of crop residues, should be simulated in consideration of an amendment history effect. In contrast, the results of the ANOVA indicated that amendment history had an insignifi cant effect on net C and N mineralization from recently applied amendment. We concluded that the effects of amendment history on gross turnover rates of recently added organic amendments may depend on the type of amendment but that these effects on net C and N mineralization are minor in magnitude and hence irrelevant to N fertilization practice. Leif

show abstract

Scots pine (Pinus sylvestris) bark composition and degradation by fungi: Potential substrate for bioremediation

Cited by 81 publications

References 33 publications

Loss of diversity in wood-inhabiting fungal communities affects decomposition activity in Norway spruce wood

Loss of diversity in wood-inhabiting fungal communities affects decomposition activity in Norway spruce wood

Fractioning of bark of Pinus pinea by milling and chemical characterization of the different fractions

Influence of Soil Amendment History on Decomposition of Recently Applied Organic Amendments

Contact Info

Product

Resources

About