Tissue Culture of Salix pet-susu: A Fast-Growing Biomass Resources Tree

摘要

Willows (Salix species) are a fast-growing species for effective forest biomass production. They are widely distributed in the world but occur most abundantly in the cooler parts of the Northern Hemisphere. Among many willow species, S. pet-susu Kimura is one of the fastest growing species in the Hokkaido Island of Japan. For multiuse of all components of wood, components like hemicellulose or lignin in addition to cellulose can also be used for many functional materials. We have attempted to assessthe plant growth regulatory function of xylooligosaccharides produced from the hemicellulose of hardwoods like Salix. In the course of study, we established an in vitro culture system of S. pet-susu for in vitro assessing of regulatory products and molecular tree breeding. There have been several reports of tissue culture of other Salix species (Bergman et al, 1985; Stoehr et al., 1989; Neuner and Beiderbeck, 1993; Liesebach and Naujoks, 2004). Although several papers have been reported on the tissue culture of trees such as poplar, this is the first report for tissue culture of S. pet-susu.