Constituents of Pine Heartwood. XXVI. A General Discussion.

Lindstedt, Gösta

doi:10.3891/acta.chem.scand.05-0129

Cited by 31 publications

(10 citation statements)

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“…As formerly assumed, physiological processes take place in the heartwood leading to the production of phenols and polyphenols; this Suggestion is supported by Parameswaran and Bauch (1975). Lindstedt (1951) traced no heartwood phenolics in the vicinity of the cambium in pine. The exclusive occurrence of three phenolic compounds in peripheral wood of T. scleroxylon coincides with the former hypothesis.…”

Section: C) Phenolsmentioning

confidence: 81%

On Biological Characteristics of Abachi Wood(Triplochiton scleroxylonK. Schum.)

Tabirih¹,

Seehann²

1981

Holzforschung

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Section: C) Phenolsmentioning

confidence: 81%

On Biological Characteristics of Abachi Wood(Triplochiton scleroxylonK. Schum.)

Tabirih¹,

Seehann²

1981

Holzforschung

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“…ature again mak ubtle use of organic reactivitie .39 c Reverting to the origin of tb idea in the structure of carnpnospermonol it i of interest that the th oretical, intermediate (51) wa later found in the tree. It must be generated by elaborati n of a 6-chain from oleyl coeozyme-A and four malonyl nzyme-A unit, reduction of a carbonyl, aldol cyclizati n, decarboxylation and dehydration.…”

Section: The Author' Own Ideamentioning

confidence: 98%

Chance and Design in Biosynthes

Birch

1976

Interdisciplinary Science Reviews

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“…In Scots pine ( Pinus sylvestris ), stilbenes (pinosylvin and pinosylvin monomethylether) and chalcone derivative pinocembrin are important extractives of the heartwood. All three compounds are widespread among pines, but rarely occur in other species (Lindstedt, ). Chalcone synthase (CHS) and stilbene synthase (STS) are two key enzymes catalysing the first reactions in the branches of the phenylpropanoid pathway leading to flavonoids and stilbenes, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…All three compounds are widespread among pines, but rarely occur in other species (Lindstedt, 1951). Chalcone synthase (CHS) and stilbene synthase (STS) are two key enzymes catalysing the first reactions in the branches of the phenylpropanoid pathway leading to flavonoids and stilbenes, respectively.…”

Section: Introductionmentioning

confidence: 99%

Differential responses of Scots pine stilbene synthase and chalcone synthase genes to Heterobasidion annosum infection

et al. 2017

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Summary Phenolic compounds are essential components of the defensive chemical arsenal of conifer trees. This chemically diverse group encompasses stilbenoids, flavonoids, isoflavonoids, proanthocyanidins and lignans. All of them are produced from the common precursors, CoA esters of the phenylpropanoids: p‐coumaroyl‐CoA, cinnamoyl‐CoA, caffeoyl‐CoA and feruloyl‐CoA. Two classes of enzymes, stilbene synthases and chalcone synthases, play important roles in the biosynthesis of plant phenolics, such as the conversion of the phenylpropanoid‐CoA esters into stilbenoids and flavonoids, respectively. In this study, we investigated the transcriptional responses of the Scots pine (Pinus sylvestris) genes encoding stilbene and chalcone synthases to the infection by the fungal pathogen Heterobasidion annosum. The experiments were performed on pine seedlings and mature trees. Our results show that the stilbene synthase gene is strongly induced in both age groups, but the level of induction in adult trees varied considerably among individual trees. Systemic induction in needles and hypocotyl regions was documented in young seedlings following fungal inoculation in root region. Concurrent changes in the expression of the chalcone synthase gene in response to fungal infection were much less pronounced. Our data confirm previous observations on the differential regulation of these enzymes in Scots pine and emphasize the role of stilbene synthase in the induced response to fungal infection.

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Constituents of Pine Heartwood. XXVI. A General Discussion.

Cited by 31 publications

References 0 publications

On Biological Characteristics of Abachi Wood(Triplochiton scleroxylonK. Schum.)

On Biological Characteristics of Abachi Wood(Triplochiton scleroxylonK. Schum.)

Chance and Design in Biosynthes

Differential responses of Scots pine stilbene synthase and chalcone synthase genes to Heterobasidion annosum infection

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