How Does the pH of Tree Bark Change with the Presence of the Epiphytic Bryophytes from the Family Orthotrichaceae in the Interaction with Trunk Inclination?

Kovarova, Marketa; Pyszko, Petr; Plášek, Vítězslav

doi:10.3390/plants11010063

Cited by 11 publications

(7 citation statements)

References 56 publications

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“…The phenomenon of the high diversification of the pH parameter of tree bark, depending on the species, was previously widely recognized in the literature. This is because the pH of bark is affected by several biotic and abiotic factors [120]. Nevertheless, the obtained pH range entirely coincides with the literature studies.…”

Section: Chemical Analysissupporting

confidence: 88%

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Sobol,

Sabat,

Dyjakon

2023

Energies

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Wood bark is a by-product of the forestry industry with significant quantitative potential. Due to the higher heating value and hydrophobic character (dictated by the content of hydrophobic extracts in the chemical composition of the bark) facilitating long-term storage and transport, bark is considered a valuable material to be integrated into the energy industry as a substrate for combustion and co-combustion. However, the heterogeneous structure of the biomass causes significant differences in these parameters between different types of bark. For this reason, this study aimed to analyze the energy usefulness and hydrophobicity of 14 species of bark occurring in large amounts across Europe. Bark’s higher heating value has been shown to range from 17.239 MJ·kg−1 ± 0.318 MJ·kg−1 to 21.618 MJ·kg−1 ± 0.375 MJ·kg−1, and most species are extremely hydrophobic in the WDPT (water drop penetration time; 70–10,495 s) and MED (molarity ethanol droplet; 8.5–24%) tests. Nevertheless, the statistically significant differences between the species in the hydrophobicity tests indicate that the storage of individual types of bark should be adapted to the species and preceded by an analysis of its hydrophobicity. It was also shown that the WDPT test seems to be more suitable for the analysis of highly hydrophobic biomasses, due to the possibility of better differentiation of the level of hydrophobicity between species showing the same degree of hydrophobicity. In addition, the best type of bark that could be implemented in the power industry from the point of view of hydrophobicity and combustion characteristics was Silver Birch bark.

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Section: Chemical Analysissupporting

confidence: 88%

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Sobol,

Sabat,

Dyjakon

2023

Energies

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“…Bark pH is one of the ecological factors affecting the occurrence of bryophytes [38]. Our results showed a correlation between bark pH [38] and epiphytic bryophyte communities and BPPs (N, P, K, C, S, Si, and bark CD) (Figure 3A). The environmental variables affected the species diversity, PD, and FRic of the epiphyte community.…”

Section: Discussionmentioning

confidence: 58%

“…Epiphytic bryophytes species did not show strong positive relationships with light compared with other bryophytes [37]. Bark pH is one of the ecological factors affecting the occurrence of bryophytes [38]. Our results showed a correlation between bark pH [38] and epiphytic bryophyte communities and BPPs (N, P, K, C, S, Si, and bark CD) (Figure 3A).…”

Section: Discussionmentioning

confidence: 65%

Importance of Bark Physicochemical Properties in an Epiphytic Bryophyte Community within a Temperate Deciduous Broadleaf Forest

Shao

Chen

et al. 2023

Diversity

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Epiphytic bryophytes are important components of forest ecosystems and play important roles in maintaining biodiversity and ecosystem function. However, the main factors driving epiphytic bryophyte diversity remain unclear. We collected the tree epiphytic bryophytes from a one-hectare plot within a temperate deciduous broadleaf forest (China). Canonical correspondence analyses and Mantel tests were used to establish linear regression models and thus dissect the effects of environmental variables (topography, light and bark physicochemical properties) on the species diversity, functional diversity, and phylogenetic diversity of epiphytic bryophytes. The relationship between environmental variables and epiphytic bryophyte diversity was analyzed using piecewise structural equation modeling. Results showed that the physicochemical properties of the bark directly influenced the species diversity and phylogenetic diversity of the epiphytic bryophytes. The physical and chemical properties of bark also indirectly affected the functional diversity of the epiphytic bryophytes. Elucidation of the factors driving epiphytic bryophyte diversity provides insights into their conservation.

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“…We observed a significant phylogenetic relationship of host tree species with the metabolic constitution of R. complanata independent of geographic origin. It has been described before that different host trees possess specific bark chemistry with unique conditions, such as bark pH or the elemental (C, N, P, Mg, Ca, …) content per bark dry mass filter for specific epiphytic communities [ 34 , 35 ]. While R. complanata has been found to be not very selective regarding its substrate ( R. complanata can grow on many types of bark, mainly of deciduous trees, but also on rocks and even on bare soil), these unspecific and rather wide requirements are mirrored by its metabolome, which is regulated depending on the conditions of the host substrate.…”

Section: Discussionmentioning

confidence: 99%

Host Tree and Geography Induce Metabolic Shifts in the Epiphytic Liverwort Radula complanata

Blatt-Janmaat

Neumann

Ziegler

et al. 2023

Plants

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Bryophytes are prolific producers of unique, specialized metabolites that are not found in other plants. As many of these unique natural products are potentially interesting, for example, pharmacological use, variations in the production regarding ecological or environmental conditions have not often been investigated. Here, we investigate metabolic shifts in the epiphytic Radula complanata L. (Dumort) with regard to different environmental conditions and the type of phorophyte (host tree). Plant material was harvested from three different locations in Sweden, Germany, and Canada and subjected to untargeted liquid chromatography high-resolution mass-spectrometry (UPLC/ESI-QTOF-MS) and data-dependent acquisition (DDA-MS). Using multivariate statistics, variable selection methods, in silico compound identification, and compound classification, a large amount of variation (39%) in the metabolite profiles was attributed to the type of host tree and 25% to differences in environmental conditions. We identified 55 compounds to vary significantly depending on the host tree (36 on the family level) and 23 compounds to characterize R. complanata in different environments. Taken together, we found metabolic shifts mainly in primary metabolites that were associated with the drought response to different humidity levels. The metabolic shifts were highly specific to the host tree, including mostly specialized metabolites suggesting high levels of ecological interaction. As R. complanata is a widely distributed generalist species, we found it to flexibly adapt its metabolome according to different conditions. We found metabolic composition to also mirror the constitution of the habitat, which makes it interesting for conservation measures.

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How Does the pH of Tree Bark Change with the Presence of the Epiphytic Bryophytes from the Family Orthotrichaceae in the Interaction with Trunk Inclination?

Cited by 11 publications

References 56 publications

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Assessment of Bark Properties from Various Tree Species in Terms of Its Hydrophobicity and Energy Suitability

Importance of Bark Physicochemical Properties in an Epiphytic Bryophyte Community within a Temperate Deciduous Broadleaf Forest

Host Tree and Geography Induce Metabolic Shifts in the Epiphytic Liverwort Radula complanata

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