Bacterial Utilization of Lignans I

Tabak, Henry H.; Chambers, C.; Kabler, Paul W.

doi:10.1128/jb.78.4.469-476.1959

Cited by 27 publications

(4 citation statements)

References 21 publications

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“…2 ) also indicates that H. parviporum is able to decompose lignans. The α-conidendrin can serve as the sole carbon source for microorganisms—bacterial use of α-conidendrin has been reported to proceed as follows: α-conidendrin → vanillic acid → p -hydroxybenzoic acid → protocatechuic acid → ketoadipic acid (Tabak et al 1959 ). We are not aware of any similar studies in relation to wood decay fungi.…”

Section: Discussionmentioning

confidence: 99%

Patterns and roles of lignan and terpenoid accumulation in the reaction zone compartmentalizing pathogen-infected heartwood of Norway spruce

Nagy

Norli

Fongen

et al. 2022

Planta

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Main conclusion Lignan impregnation of the reaction zone wood protects against oxidative degradation by fungi. Traumatic resin canals may play roles in the underlying signal transduction, synthesis, and translocation of defense compounds. Abstract Tree defense against xylem pathogens involves both constitutive and induced phenylpropanoids and terpenoids. The induced defenses include compartmentalization of compromised wood with a reaction zone (RZ) characterized by polyphenol deposition, whereas the role of terpenoids has remained poorly understood. To further elucidate the tree–pathogen interaction, we profiled spatial patterns in lignan (low-molecular-weight polyphenols) and terpenoid content in Norway spruce (Picea abies) trees showing heartwood colonization by the pathogenic white-rot fungus Heterobasidion parviporum. There was pronounced variation in the amount and composition of lignans between different xylem tissue zones of diseased and healthy trees. Intact RZ at basal stem regions, where colonization is the oldest, showed the highest level and diversity of these compounds. The antioxidant properties of lignans obviously hinder oxidative degradation of wood: RZ with lignans removed by extraction showed significantly higher mass loss than unextracted RZ when subjected to Fenton degradation. The reduced diversity and amount of lignans in pathogen-compromised RZ and decaying heartwood in comparison to intact RZ and healthy heartwood suggest that α-conindendrin isomer is an intermediate metabolite in lignan decomposition by H. parviporum. Diterpenes and diterpene alcohols constituted above 90% of the terpenes detected in sapwood of healthy and diseased trees. A significant finding was that traumatic resin canals, predominated by monoterpenes, were commonly associated with RZ. The findings clarify the roles and fate of lignan during wood decay and raise questions about the potential roles of terpenoids in signal transduction, synthesis, and translocation of defense compounds upon wood compartmentalization against decay fungi.

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Section: Discussionmentioning

confidence: 99%

Patterns and roles of lignan and terpenoid accumulation in the reaction zone compartmentalizing pathogen-infected heartwood of Norway spruce

Nagy

Norli

Fongen

et al. 2022

Planta

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“…Microorganisms which grow with -conidendrin as sole source of carbon have been isolated from the genus Pseudomonas, Achromobacter, Flavobacterium, and Agrobacterium (Konetzka et al, 1952;Pratt et al, 1953;Tabak et al, 1959;Sundman, 1965). However, little is understood about the mechanism of oxidative degradation of this lignin model compound by soil bacteria.…”

Section: Discussionmentioning

confidence: 99%

“…Several investigators (Konetzka et al, 1952;Pratt et al, 1953;Tabak et al, 1959;Sundman, 1965) raphy, ultraviolet-visible spectrophotometry, and manometry were the methods used to determine the later degradative products of -conidendrin cultures. Sundman (1965) found that an Agrobacterium degraded -conidendrin to iso vanillin, whereas Konetzka et al (1957) studied washed cell suspensions of a Flavobacterium and implicated vanillic acid, p-hydroxybenzoic acid, and protocatechuic acid as intermediates in -conidendrin degradation.…”

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confidence: 99%

Early intermediates in the degradation of α-conidendrin by a Pseudomonas multivorans

Toms¹,

Wood²

1970

Biochemistry

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“…Previous investigators (1)(2)(3) have studied the possibility of bacterial degradation of the responsible nitrobodies, while others (4, 5) have attempted removal of the pollutants by carbon adsorption techniques. The efficiency of biodegradation not only remains questionable but also has the disadvantage of requiring a long time to consume the material in the extremely large daily output of waste water.…”

mentioning

confidence: 99%

Application of liquid chromatography to pollution abatement studies of munition wastes

Walsh¹,

Chalk²,

Merritt³

1973

Anal. Chem.

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Bacterial Utilization of Lignans I

Cited by 27 publications

References 21 publications

Patterns and roles of lignan and terpenoid accumulation in the reaction zone compartmentalizing pathogen-infected heartwood of Norway spruce

Patterns and roles of lignan and terpenoid accumulation in the reaction zone compartmentalizing pathogen-infected heartwood of Norway spruce

Early intermediates in the degradation of α-conidendrin by a Pseudomonas multivorans

Application of liquid chromatography to pollution abatement studies of munition wastes

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