Cost Action E50 Cell Wall Macromolecules and Reaction Wood (cemare)
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منابع مشابه
Acetylation of wood – A review
Wood is a porous three dimensional, hydroscopic, viscoelastic, anisotropic bio-polymer composite composed of an interconnecting matrix of cellulose, hemicelluloses and lignin with minor amounts of inorganic elements and organic extractives. Some, but not all, of the cell wall polymer hydroxyl groups are accessible to moisture and these accessible hydroxyls form hydrogen bonds with water. As the...
متن کاملMorphology, Anatomy and Ultrastructure of Reaction Wood
Whatever the species considered, trees reorient their axis by a very active mechanical action driven by variations of cambial activity. These variations of cambial activity will lead to variations in anatomy and ultrastructure of the xylem to achieve this biomechanical function, forming a type of wood called reaction wood, i.e. tension wood in angiosperms and compression wood in gymnosperms. Th...
متن کاملBiomechanical Action and Biological Functions
The main biological function of reaction wood is to act as “muscle” for trees, enabling them to control their posture. The key property to achieve this function is the development of high mechanical stress during the formation of reaction wood cells, called “maturation strains”. Actually, reaction wood formation is basically the asymmetric formation of wood around the tree circumference, with h...
متن کاملModification of the nanostructure of lignocellulose cell walls via a non-enzymatic lignocellulose deconstruction system in brown rot wood-decay fungi
Wood decayed by brown rot fungi and wood treated with the chelator-mediated Fenton (CMF) reaction, either alone or together with a cellulose enzyme cocktail, was analyzed by small angle neutron scattering (SANS), sum frequency generation (SFG) spectroscopy, Fourier transform infrared (FTIR) analysis, X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (T...
متن کاملA review on structures of secondary wall in reaction wood fiber of hardwood species
Due to a non-vertical orientation of the stem or branch, which may begin as responses of prevailing winds, snow, slope, or asymmetric crown shape, a specialized wood tissue forms, is called “reaction wood”. In hardwood species, the reaction wood tends to form on the upper side of a leaning stem or branch, is known to as “tension wood”. It is usually related with eccentric growth and changes in ...
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تاریخ انتشار 2007