Abstract
In conifers, juvenile wood (JW) is always associated with compression wood (CW). Due to their similar properties, there is a common belief that JW is the same as CW. To resolve whether JW is identical to CW, 24 rooted cuttings of one loblolly pine clone were planted in growth chambers under normal, artificial bending, and windy environments. The results show that the morphology of JW is significantly different from CW. Furthermore, chemical analyses revealed that JW and CW are significantly different in chemical composition. Our results indicate that JW is different from CW, and the wood formed under a controlled windy environment is a mild type of compression wood.
References
Adler, E., Brunow, G., Lundquist, K. (1987) Investigation of the acid-catalysed alkylation of lignins by means of NMR spectroscopic methods. Holzforschung41:199–207.10.1515/hfsg.1987.41.4.199Search in Google Scholar
Akiyama, T., Sugimoto, T., Matsumoto, Y., Meshitsuka, G. (2002) Erythro/threo ratio of β-O-4 structures as an important structural characteristic of lignin. I: Improvement of ozonation method for the quantitative analysis of lignin side-chain structure. J. Wood Sci.48:210–215.Search in Google Scholar
Akiyama, T., Matsumoto, Y., Okuyama, T., Meshitsuka, G. (2003) Ratio of erythro and threo form of β-O-4 structures in tension wood lignin. Phytochemistry64:1157–1162.10.1016/S0031-9422(03)00509-0Search in Google Scholar
Balakshin, M.Y., Capanema, E., Goldfarb, B., Frampton, J., Kadla, J.F. (2005) NMR studies on Fraser fir Abies fraseri (Pursh) Poir lignins. Holzforschung59:488–496.10.1515/HF.2005.081Search in Google Scholar
Bendtsen, B.A. (1978) Production of wood from improved and intensively managed trees. For. Prod. J.28:61–72.Search in Google Scholar
Bjorkman, A. (1956) Studies on finely divided wood. Part I. Extraction of lignin with neutral solvents. Sven. Papperstidn.59:477–485.Search in Google Scholar
Bland, D.E. (1958) The chemistry of reaction wood. Part I. the lignin of Eucalyptus goniocalyx and Pinus radiata. Holzforschung12:36–43.Search in Google Scholar
Capanema, E.A., Balakshin, M.Y., Kadla, J.F. (2004) A comprehensive approach for quantitative lignin characterization by NMR spectroscopy. J. Agric. Food Chem.52:1850–1860.10.1021/jf035282bSearch in Google Scholar
Chang, H.M., Allan, G.G. (1971). Oxidation. In: Lignin: Occurrence, Formation, Structure and Reactions. Eds. Sakanen, K.V., Ludwig, C.H. Wiley-Interscience, New York. pp. 433–485.Search in Google Scholar
Chen, C.L. (1992) Nitrobenzene and cupric oxide oxidation. In: Methods in Lignin Chemistry. Eds. Lin, S.Y., Dence, C.W. Springer-Verlag, Berlin. pp. 301–321.10.1007/978-3-642-74065-7_21Search in Google Scholar
Coimbra, M.A., Delgadillo, I., Waldron, K.W., Selvendran, R. (1996) Isolation and analysis of cell wall polymers from olive pulp. In: Modern Methods of Plant Analysis, Vol. 17. Eds. Linskens, H.F., Jackson, J.F. Springer-Verlag, Berlin. pp. 33–44.10.1007/978-3-642-60989-3_2Search in Google Scholar
Dence, C.W. (1992). The determination of lignin. In: Methods in Lignin Chemistry. Eds. Lin, S.Y., Dence, C.W. Springer-Verlag, Berlin. pp. 34–35.Search in Google Scholar
Fukushima, K., Taguchi, S., Matsui, N., Yasuda, S. (1997) Distribution and seasonal changes of monolignol glucosides in Pinus thunbergii. Mokuzai Gakkaishi43:254–259.Search in Google Scholar
Goto, H., Koda, K., Matsumoto, Y., Meshitsuka, G. (2001). Precise determination of methoxy content as an important indication of the extent of lignin oxidation remaining in bleached pulp. In: Proceedings of the 11th JSWPC, Nice, France, June 11–14, 2001, v. III. pp. 417–420.Search in Google Scholar
Krassig, H.A. (1993). Cellulose: Structure, Accessibility, and Reactivity. Gordon and Breach Science, Switzerland. pp. 91–92.Search in Google Scholar
Kwon, M., Bedgar, D.L., Piastuch, W., Davin, L.B., Lewis, N.G. (2001) Induced compression wood formation in Douglas fir (Pseudotuga menziesii) in microgravity. Phytochemistry57:847–857.10.1016/S0031-9422(01)00145-5Search in Google Scholar
Lee, C.L. (1961) Crystallinity of wood cellulose fiber. For. Prod. J.11:108–112.Search in Google Scholar
Lohrasebi, H., Mabee, W.E., Roy, D.N. 1999. Chemistry and pulping feasibility of compression wood in black spruce. J. Wood Chem. Technol.19:13–25.10.1080/02773819909349597Search in Google Scholar
Lundquist, K. (1980) NMR studies of lignins. 4. Investigation of spruce lignin by 1H NMR spectroscopy. Acta Chem. Scand. Ser. B34:21–26.Search in Google Scholar
Matsumoto, Y., Ishizu, A., Nakano, J. (1986). Studies of chemical structure of lignin by ozonation. Holzforschung40(Suppl.):81–85.Search in Google Scholar
Önnerud, H., Gellerstedt, G. (2003). Inhomogeneities in the chemical structure of spruce lignin. Holzforschung57:165–170.Search in Google Scholar
Scurfield, G. (1973) Reaction wood: its structure and function. Science179:647–655.10.1126/science.179.4074.647Search in Google Scholar PubMed
Shelbourne, C.J.A., Ritchie, K.S. (1968) Relationships between degree of compression wood development and specific gravity and tracheid characteristics in loblolly pine. Holzforschung22:185–190.10.1515/hfsg.1968.22.6.185Search in Google Scholar
Tanaka, F., Koshijima, T., Okuyama, T. (1981) Characterization of cellulose in compression wood and opposite woods of a Pinus densiflora tree grown under the influence of strong wind. Wood Sci. Technol.15:265–273.10.1007/BF00350944Search in Google Scholar
Tappi standard (1988) T264om-88. Preparation of wood for chemical analysis.Search in Google Scholar
Timell, T.E. (1986) Compression Wood in Gymnosperms. Springer-Verlag, Berlin.10.1007/978-3-642-61616-7Search in Google Scholar
Vonk, C.G. (1973) Computerization of Ruland's X-ray method for determination of the crystallinity in polymers. J. Appl. Crystallogr.6:148–152.10.1107/S0021889873008332Search in Google Scholar
Wardrop, A.B., Davies, G.W. (1964). The nature of reaction wood. VIII. The structure and differentiation of compression wood. Aust. J. Bot.12:24–38.Search in Google Scholar
Watanabe, H., Tsutsumi, J., Kojima, K. (1963). Studies on juvenile wood. I. Experiments on stems of Sugi trees (Cryptomeria japonica D. Don). Mokuzai Gakkaishi9:225–230.Search in Google Scholar
Yasuda, S., Sakakibara, A. (1975). The chemical composition of lignin from compression wood. Mokuzai Gakkaishi21:363–369.Search in Google Scholar
Yeh, T.F., Yamada, T., Capanema, E., Chang, H.M., Chiang, V., Kadla, J.F. (2005) Rapid screening of wood chemical component variations using transmittance near-infrared spectroscopy. J. Agric. Food Chem.53:3328–3332.10.1021/jf0480647Search in Google Scholar PubMed
Yokoyama, T., Kadla, J.F., Chang, H.M. (2002) Microanalytical method for the characterization of fiber components and morphology of woody plants. J. Agric. Food Chem.50:1040–1044.10.1021/jf011173qSearch in Google Scholar PubMed
Zobel, B.J. (1975). Using the juvenile wood concept in the southern pines. South. Pulp Pap. Manuf.38:14–16.Search in Google Scholar
Zobel, B.J. (1981). Wood quality from fast-grown plantation. Tappi J.64:71–74.Search in Google Scholar
Zobel, B.J. (1984). The changing quality of the world wood supply. Wood Sci. Technol. 18:1–17.Search in Google Scholar
Zobel, B.J., McElwee, R.L. (1958) Variation of cellulose in loblolly pine. Tappi J.41:167–170.Search in Google Scholar
Zobel, B.J., Sprague, J.R. (1998) Juvenile Wood in Forest Trees. Springer-Verlag, Berlin.10.1007/978-3-642-72126-7Search in Google Scholar
Zobel, B.J., Van Buijtenen, J.P. (1989) Wood Variation: Its Causes and Control. Springer-Verlag, Berlin.10.1007/978-3-642-74069-5Search in Google Scholar
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