Three-dimensional structure of wood : an ultrastructural approach

摘要: Nine years ago saw the publication of first version Three-dimensional Structure Wood: A scanning electron microscope study [95]. This book contained 59 micrographs and a modest text outlining basic structure wood_ When we wrote it in 1970, was still something novelty (the commercially produced SEM only coming on market 1965) its use as an instrument serious wood research treated by many with good deal suspicion. Such suspicions were not without foundation for indeed Wood put together from somewhat paltry collection few hundred taken over two year period. The last decade has seen some remarkable developments general understanding wood. Our personal grown to 16 000. Techniques specimen preparation [46, 47], particularly areas dehydration [36] coating have greatly improved. Most significant however, been new depth ultrastructure that become almost universal. By combining light, transmission microscopes, scientists widely separated parts world now added vast amount information our such aspects perforation plate development, tylose formation, formation reaction wood, septate fibres ultrastructure, etc.