1985
DOI: 10.1515/hfsg.1985.39.5.249
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Significance of Bacteria in the Discoloration of Ilomba Wood(Pycnanthus angolensisExell)

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Cited by 10 publications
(3 citation statements)
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“…3.1 Characterization of bacteria and woody substrates b .cteria (Tables 2 and 3) were isolated from fresh samples of the sapwood of diseased and spruce trees, of the wetwood of fir and poplar trees and from discoloured of Ilomba (SCHMIDT and KEBERNIK 1984;BAUCH et al 1985;SCHMIDT 1985;RADEMACHER 1985;SCHMIDT et al 1986). Pseudomonas species prevail (Tables 2 and most of the unidentified bacteria are motile rods with aerobic behaviour, either obi sp or facultative.…”
Section: Resultsmentioning
confidence: 99%
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“…3.1 Characterization of bacteria and woody substrates b .cteria (Tables 2 and 3) were isolated from fresh samples of the sapwood of diseased and spruce trees, of the wetwood of fir and poplar trees and from discoloured of Ilomba (SCHMIDT and KEBERNIK 1984;BAUCH et al 1985;SCHMIDT 1985;RADEMACHER 1985;SCHMIDT et al 1986). Pseudomonas species prevail (Tables 2 and most of the unidentified bacteria are motile rods with aerobic behaviour, either obi sp or facultative.…”
Section: Resultsmentioning
confidence: 99%
“…To identify the metabolites with which bacteria may change the pH in trees and timber to acidity or alkahnity (cf. BRILL et al 1981;BAUCH et al 1985), 16 bacteria from diseased spruce trees ('acid' type) and discoloured Ilomba timber ('alkaline' type) were cultivated m a sugar and in a protein medium, and some of the bacterial aerobic metabolites were quantitatively measured (SCHMIDT and KEBERNIK 1984). Table 3 summarizes the maximum values of metabolites obtained during the bacterial mcubation.…”
Section: Bacterial Metabolites Which Influence the Ph-valuementioning
confidence: 99%
“…5,5 auf 7,5 bis 8,5 an, indem sie aus dem Protein der eiweifireichen Holzart unter aeroben Bedingungen Ammoniak freisetzen. Durch diese Alkahsierung kommt es zu Phenoloxidation und Polymerisation (BAUCH et al 1985). Weiterhin konnte im Laborversuch festgestellt werden, dafJ durch Vorbehandlung der Schnittholzoberflachen von Ilombaholz vor der Trocknung mit Ameisensaure und Propionsaure die bakterielle Braunfarbung unterbleibt (BAUCH, SCHMIDT und V. HUNDT, unveroffentlicht).…”
Section: Diskussionunclassified