Effect of Soluble Nutrient Content in Wood on its Susceptibility to Soft Rot and Bacterial Attack in Ground Test
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Nasko Terziev
Summary
The objective of the study was to investigate whether soluble sugars and nitrogenous compounds in wood have an impact on susceptibility of wood to decay in ground contact, which is important in the field of test methodology and standardization.
Kiln drying of Scots pine planks caused a distinct gradient of low-molecular weight (LMW) sugars and nitrogenous compounds in the 0–2 mm zone at the surface of the timber, whereas the deeper zones had constant and low contents of soluble substances. Strips, containing different content of soluble nutrients, were cut and exposed in two types of soil; the former one being rich in soft rot fungi, the latter one being rich in soft rot fungi and bacteria.
The strips rich in nutrients showed an average of 16 % of mass loss whereas samples poorer in nutrients were less affected (8–9 %) after 120 days of exposure in the soil rich in soft rot fungi. A pure culture test with the soft rot fungus Phialophora mutabilis confirmed the above-mentioned observation. The result is in favour of taking samples with approximately equal content of soluble nutrients to decrease the variability of test results, e.g., mass losses.
The garden compost, rich in both soft rot fungi and bacteria, caused severe mass loss (40–48 %) of the strips after 120 days of exposure. No difference in the mass losses of the samples was measured. The choice of test soil as well as the nutrient status of the samples can lead to completely different results and, consequently, conclusions.
Copyright © 1999 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- Subject Index
- Author Index
- Species Index
- Contents
- Production of Polygalacturonase and Increase of Longitudinal Gas Permeability in Southern Pine by Brown-Rot and White-Rot Fungi
- Components of Steamed and Non-Steamed Japanese Larch (Larix leptolepis (Sieb. et Zucc.) Gord.) Heartwood Affecting the Feeding Behavior of the Subterranean Termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae)
- Effect of Soluble Nutrient Content in Wood on its Susceptibility to Soft Rot and Bacterial Attack in Ground Test
- Carboxylic Acids of Moroccan Pinus Pinaster Bark Extract
- What Factors Control Dimerization of Coniferyl Alcohol?
- Atmospheric Acetic Acid Pulping of Rice Straw IV: Physico-Chemical Characterization of Acetic Acid Lignins from Rice Straw and Woods. Part 2. Chemical Structures
- Rapid Determination of the Lignin Content in Sitka Spruce (Picea sitchensis (Bong.) Carr.) Wood by Fourier Transform Infrared Spectrometry
- Lignin Analysis by Permanganate Oxidation. II. Lignins in Acidic Organosolv Pulps
- Lignin Depolymerization in Hydrogen-Donor Solvents
- Species Effects on Wood-Liquefaction in Polyhydric Alcohols
- NMR Analysis of Oxidative Alkaline Extraction Stage Lignins
- Reduction of Weathering Degradation of Wood Through Plasma-Polymer Coating
- VOC Extraction from Softwood Through Low-Headspace Heating
- Localization of Wood Improvement Compounds by Microautoradiography and ESEM
- Laser Ablation of Machined Wood Surfaces. 2. Effect on End-Grain Gluing of Pine (Pinus silvestris L.)
- Multi-Component Mixture Modeling for the Dielectric Properties of Rubber Wood at Microwave Frequencies
- Adsorption of Liquids and Swelling of Wood IV. Temperature Dependence on the Adsorption
- Prevention of Extractive Leaching by Chemical Treatments of Wood Surface
Articles in the same Issue
- Subject Index
- Author Index
- Species Index
- Contents
- Production of Polygalacturonase and Increase of Longitudinal Gas Permeability in Southern Pine by Brown-Rot and White-Rot Fungi
- Components of Steamed and Non-Steamed Japanese Larch (Larix leptolepis (Sieb. et Zucc.) Gord.) Heartwood Affecting the Feeding Behavior of the Subterranean Termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae)
- Effect of Soluble Nutrient Content in Wood on its Susceptibility to Soft Rot and Bacterial Attack in Ground Test
- Carboxylic Acids of Moroccan Pinus Pinaster Bark Extract
- What Factors Control Dimerization of Coniferyl Alcohol?
- Atmospheric Acetic Acid Pulping of Rice Straw IV: Physico-Chemical Characterization of Acetic Acid Lignins from Rice Straw and Woods. Part 2. Chemical Structures
- Rapid Determination of the Lignin Content in Sitka Spruce (Picea sitchensis (Bong.) Carr.) Wood by Fourier Transform Infrared Spectrometry
- Lignin Analysis by Permanganate Oxidation. II. Lignins in Acidic Organosolv Pulps
- Lignin Depolymerization in Hydrogen-Donor Solvents
- Species Effects on Wood-Liquefaction in Polyhydric Alcohols
- NMR Analysis of Oxidative Alkaline Extraction Stage Lignins
- Reduction of Weathering Degradation of Wood Through Plasma-Polymer Coating
- VOC Extraction from Softwood Through Low-Headspace Heating
- Localization of Wood Improvement Compounds by Microautoradiography and ESEM
- Laser Ablation of Machined Wood Surfaces. 2. Effect on End-Grain Gluing of Pine (Pinus silvestris L.)
- Multi-Component Mixture Modeling for the Dielectric Properties of Rubber Wood at Microwave Frequencies
- Adsorption of Liquids and Swelling of Wood IV. Temperature Dependence on the Adsorption
- Prevention of Extractive Leaching by Chemical Treatments of Wood Surface
