Enzymatische Versuche zur Entstehung des Lignins

Freudenberg, Karl; Richtzenhain, Hermann

doi:10.1002/cber.19430761009

Cited by 39 publications

(5 citation statements)

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“…It is also worth pointing out that definitive experiments in correlating oxidative capacity with lignification in vivo with other oxidases were lacking. This was largely through the experimental design employed, such as with the polyphenol oxidases, [426][427][428][429][430][431]444 coniferyl alcohol oxidase 446,449,452 and laccases, 432,436,441 with the latter discussed in Section 10.3.…”

Section: Predictability In Manipulating Peroxidase Enzymatic Activiti...mentioning

confidence: 99%

Dissection of lignin macromolecular configuration and assembly: Comparison to related biochemical processes in allyl/propenyl phenol and lignan biosynthesis

et al. 2008

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This comprehensive review describes the current status and knowledge of biochemical and molecular processes involved in allyl/propenyl phenol, lignan, norlignan and lignin biosynthesis. Recent advances made over the last decade are critically discussed, and placed in context with earlier studies largely dating back to the 1950s. Beginning with the recently established formation of phenylalanine in plants, each downstream biochemical conversion is described from the perspective of the mechanistic details known to this point. Particular emphasis is placed upon proteinaceous control of monolignol-derived radical-radical coupling processes, leading to lignans and lignins, as well as apparently related processes affording the various ellagitannins and phenolic terpenoids. The evidence for non-random macromolecular lignin assembly is discussed in detail, this being in contrast to earlier notions that such processes were random. The latter assumptions have largely resulted from a lack of robust analytical procedures and rigorous quantification, as well as a lack of incisive experimental design. In addition, the often-noted severe effects of modulating lignin compositions and contents on plant vascular tissue properties (i.e. in terms of compromised biophysical properties) are described herein, as well as the severe limitations as regards recent claims of compensatory 'combinatorial chemistry' lignin formation. Much of the latter confusion has also resulted from the serious deficiencies in current lignin analytical protocols and quantification, as well as in the general lack of experimental approaches/design to probe lignin primary structure(s).

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Section: Predictability In Manipulating Peroxidase Enzymatic Activiti...mentioning

confidence: 99%

Dissection of lignin macromolecular configuration and assembly: Comparison to related biochemical processes in allyl/propenyl phenol and lignan biosynthesis

et al. 2008

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“…In 1933, H. Erdtman (22) suggested that the process leading to lignin synthesis in plants is a dehydrogenation. Enzymic dehydrogenation of coniferyl alcohol was first carried out in 1943 (23).…”

Section: Lignin Synthesis In Vitro and In Vivomentioning

confidence: 99%

Lignin: Its Constitution and Formation from p -Hydroxycinnamyl Alcohol

Freudenberg

1965

Science

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385

135

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“…Even in the paper-peroxidase system, the linkages are probably complex if Freudenberg's theory of oxidative polymerization is valid for the phenolic acid as well as for its alcohol (5 …”

Section: Resultsmentioning

confidence: 99%

Comparison of Lignin-like Products Found Naturally or Induced in Tissues of Phleum, Elodea, and Coleus, and in a Paper Perioxidase System

Stafford

1964

Plant Physiol.

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Enzymatische Versuche zur Entstehung des Lignins

Cited by 39 publications

References 11 publications

Dissection of lignin macromolecular configuration and assembly: Comparison to related biochemical processes in allyl/propenyl phenol and lignan biosynthesis

Dissection of lignin macromolecular configuration and assembly: Comparison to related biochemical processes in allyl/propenyl phenol and lignan biosynthesis

Lignin: Its Constitution and Formation from p -Hydroxycinnamyl Alcohol

Comparison of Lignin-like Products Found Naturally or Induced in Tissues of Phleum, Elodea, and Coleus, and in a Paper Perioxidase System

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