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The Biochemistry of Lignification
1981Publisher Summary This chapter discusses briefly the occurrence and structure of the lignins found in higher plants. The pathways leading to lignin can be divided into several minor sequences. The first of these, the so-called “shikimic acid pathway” (which should properly be designated as the “chorismic acid pathway” according to its central ...
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Exploring the plasticity of lignification
2021Lignin is a phenolic polymer found predominantly in the secondary cell walls of vascular plants where it contributes to water transport, mechanical support, and plant defence. The occurrence, composition, and structure of lignin vary widely between cell types, throughout development, in response to stress, and across plant lineages.
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TORUS LIGNIFICATION IN HARDWOODS
IAWA Journal, 2004Tori in wood of Osmanthus americanus, Daphne odora, Celtis occidentalis and Ulmus alata were tested for lignins using KMnO4 staining in conjunction with TEM, and acriflavine staining in concert with CLSM. It was hypothesized that impregnation with lignin could explain torus survival during cytoplasmic apoptosis.
Christina M. Coleman +4 more
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Lignification in Plant Cell Walls
1997Cell wall lignification is a complex process occurring exclusively in higher plants; its main function is to strengthen the plant vascular body. This process involves the deposition of ill-defined phenolic polymers, the so-called lignins, on the extracellular polysaccharidic matrix.
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A mechanism for lignification in plants
Carbohydrate Polymers, 1990Abstract The mechanism of lignification is explained in terms of a free radical formation after abstraction of phenolic hydrogen from coniferyl alcohol. In plants this oxidative reaction occurs in the presence of a hydrogen peroxide-peroxidase system.
Robert H. Hwang +3 more
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NONENZYMATIC LIGNIFICATION OF ASPARAGUS?
Journal of Texture Studies, 1987ABSTRACTThe hypothesis of nonenzymatic lignification was investigated in asparagus. Samples were stored within 2 h of harvesting at 22C, 4C and ‐ IOC and tested daily, every second day and at 30‐day intervals, respectively. Some asparagus was blanched at IOOC for 3 min prior to storage.
J. L. SMITH, D. W. STANLEY, K. W. BAKER
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Trends in Plant Science, 1998
Lignins are phenolic polymers of the cell wall, and form the second most abundant group of plant biopolymers after cellulose. The application of molecular genetics and powerful analytical techniques means that a new view is required of the structure, biogenesis and location of these molecules.
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Lignins are phenolic polymers of the cell wall, and form the second most abundant group of plant biopolymers after cellulose. The application of molecular genetics and powerful analytical techniques means that a new view is required of the structure, biogenesis and location of these molecules.
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Regulation of Lignification in Defense
1992This chapter deals with some aspects of structural barriers impermeable to attempted invasions of pathogens as opposed to more direct pathogen controls by way of phytoalexin antibiotics, hydrolases or fungitoxic thionins. There is growing evidence that such barriers are reinforced or even newly erected in plant defense responses, and that they ...
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On the mechanism of lignification
Naturwissenschaften, 1952F. F. Nord, George de Stevens
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