Effects of thermal modification on Postia placenta wood degradation dynamics: measurements of mass loss, structural integrity and gene expression

Ringman, Rebecka; Pilgård, Annica; Kölle, Martina; Brischke, Christian; Richter, Klaus

doi:10.1007/s00226-015-0791-z

Cited by 20 publications

(28 citation statements)

References 36 publications

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“…The negative value for the mass loss in AC20 samples could be due to the weight gain through fungal hyphae. This phenomenon has been seen in previous studies [71,77,81].…”

Section: Mass Loss and Growth Ratessupporting

confidence: 87%

“…Significantly lower levels of Lac1 expression were shown, in this study, for acetylated samples as compared with untreated, which differs from previous studies. Ringman et al [77] studied Lac1 on thermally modified wood as compared with untreated wood and no significant differences were shown between treatments and different mass loss levels. In addition, previously, no significant differences have been shown by Zhang et al [47] for gene expression of Lac1 between oxidative and enzymatic degradation which could indicate that Lac1 does not play an important role during the non-enzymatic oxidative degradation phase or the expression is inhibited through acetylation.…”

Section: Downregulated Genesmentioning

confidence: 99%

“…The ten genes used in this study were chosen because of their assumed importance during the non-enzymatic degradation phase. This selection was based on previous findings [11,13,47,[68][69][70][75][76][77][78][79]. Most importantly, the ten genes included in this paper have never been studied with this sample design before.…”

Section: Quantitative Real-time Polymerase Chain Reactionmentioning

confidence: 99%

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Initial Rhodonia placenta Gene Expression in Acetylated Wood: Group-Wise Upregulation of Non-Enzymatic Oxidative Wood Degradation Genes Depending on the Treatment Level

Kölle

Ringman

Pilgård

2019

Forests

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Acetylation has been shown to delay fungal decay, but the underlying mechanisms are poorly understood. Brown-rot fungi, such as Rhodonia placenta (Fr.) Niemelä, K.H. Larss. & Schigel, degrade wood in two steps, i.e., oxidative depolymerization followed by secretion of hydrolytic enzymes. Since separating the two degradation steps has been proven challenging, a new sample design was applied to the task. The aim of this study was to compare the expression of 10 genes during the initial decay phase in wood and wood acetylated to three different weight percentage gains (WPG). The results showed that not all genes thought to play a role in initiating brown-rot decay are upregulated. Furthermore, the results indicate that R. placenta upregulates an increasing number of genes involved in the oxidative degradation phase with increasing WPG.

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“…The negative value for the mass loss in AC20 samples could be due to the weight gain through fungal hyphae. This phenomenon has been seen in previous studies [71,77,81].…”

Section: Mass Loss and Growth Ratessupporting

confidence: 87%

Section: Downregulated Genesmentioning

confidence: 99%

Section: Quantitative Real-time Polymerase Chain Reactionmentioning

confidence: 99%

See 1 more Smart Citation

Initial Rhodonia placenta Gene Expression in Acetylated Wood: Group-Wise Upregulation of Non-Enzymatic Oxidative Wood Degradation Genes Depending on the Treatment Level

Kölle

Ringman

Pilgård

2019

Forests

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“…Foram encontrados dois artigos em cada uma das seguintes revistas, que foram analisados conjuntamente: Annals of Forest Science, Journal of Materials Science e Wood Science and Technology (ČERMÁK et al, 2016;GÉRARDIN, 2016;HAMADA et al, 2016;RINGMAN et al, 2015; TODOROVIĆ; POPOVIĆ; MILIĆ, 2015; TUKIAINEN; HUGHES, 2016).…”

Section: Revistas Científicas Internacionaisunclassified

Retificação térmica, termorretificação, tratamento térmico, tratamento com calor ou modificação térmica?

Batista

2019

Ciênc. Florest.

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As pesquisas brasileiras sobre o processo que tem sido denominado de retificação térmica, termorretificação, tratamento térmico, tratamento com calor e modificação térmica vêm crescendo desde o ano 2000. Como a padronização de conceitos é algo importante para o desenvolvimento científico de uma determinada área, o objetivo deste trabalho foi realizar uma revisão bibliográfica sobre esse processo com a finalidade de se propor a nomenclatura técnica mais adequada para o mesmo em Língua Portuguesa, com fins de padronização. Foram revisados os artigos publicados no tema em 2015, em dez revistas científicas internacionais e em sete brasileiras. Também foi verificado um livro didático estrangeiro, o maior evento científico do tema e informações de empresas europeias detentoras de patentes de processo e que comercializam produtos. Com base análise de todas as fontes, para a padronização do processo e da madeira processada/produto originado, recomenda-se o uso das nomenclaturas técnicas modificação térmica e modificada termicamente, respectivamente. Tecnicamente, não está errado o uso dos termos tratamento térmico e tratada termicamente e seus equivalentes tratamento com calor e tratada com calor (apesar destas serem formas mais raras). Contudo, para não incorrer em erros de interpretação, essas nomenclaturas devem ser evitadas porque são genéricas e tradicionalmente empregadas para o consagrado processo de secagem artificial da madeira. Não se estimula o uso das nomenclaturas retificação térmica e termorretificação, bem como seus derivados retificada termicamente e termorretificada.

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“…Tā rezultātā ir apgrūtināta ūdens difūzija, kas nepieciešama sēņu attīstībai (Willems, 2015). Ir arī viedoklis, ka termiski modificētas koksnes gadījumā biodegradācijas sākšanās tiek inhibēta un degradācija notiek lēnāk, bet mehānisms ir tāds pat kā nemodificētai koksnei (Ringman et al, 2015).…”

Section: Koksnes Izmaiņas Termiskās Modifikācijas Procesāunclassified

Termiski modificētas lapkoku koksnes dekoratīvās īpašības un to stabilitātes uzlabošana pret vides faktoru iedarbību = Thermally modified hardwood decorative properties and improvement of their resistance to weathering

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Effects of thermal modification on Postia placenta wood degradation dynamics: measurements of mass loss, structural integrity and gene expression

Cited by 20 publications

References 36 publications

Initial Rhodonia placenta Gene Expression in Acetylated Wood: Group-Wise Upregulation of Non-Enzymatic Oxidative Wood Degradation Genes Depending on the Treatment Level

Initial Rhodonia placenta Gene Expression in Acetylated Wood: Group-Wise Upregulation of Non-Enzymatic Oxidative Wood Degradation Genes Depending on the Treatment Level

Retificação térmica, termorretificação, tratamento térmico, tratamento com calor ou modificação térmica?

Termiski modificētas lapkoku koksnes dekoratīvās īpašības un to stabilitātes uzlabošana pret vides faktoru iedarbību = Thermally modified hardwood decorative properties and improvement of their resistance to weathering

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