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ANATOMY AND CHEMICAL COMPOSITION OF LIRIODENDRON TULIPIFERA STEMS INCLINED AT DIFFERENT ANGLES

In: IAWA Journal
Authors:
Tokiko Hiraiwa Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japan

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Haruna Aiso Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japan

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Futoshi Ishiguri Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japanishiguri@cc.utsunomiya-u.ac.jp

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Yuya Takashima Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japan

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Kazuya Iizuka Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japan

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Shinso Yokota Faculty of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japan

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Online Publication Date:
06 Dec 2014
Free access

The anatomical and chemical characteristics of reaction wood (RW) were investigated in Liriodendron tulipifera Linn. Stems of seedlings were artificially inclined at angles of 30 (RW-30), 50 (RW-50) and 70° (RW-70) from the vertical, and compared with normal wood (NW) from a vertical seedling stem. The smallest values for the wood fibre length and vessel number were observed in RW-50. The pit aperture angle was less than 10° in RW-30 and RW-50, in which reduced lignin content was observed in the S2 layer of the wood fibres. An increase in the glucose content and a decrease in the lignin and xylose content was observed in RW-50. The stem inclination angle affected the degree of RW development with regard to anatomical and chemical characteristics: the severest RW was observed in RW-50, followed by RW-30. RW-70 was similar in anatomical and chemical characteristics to NW, apparently because the inclination was too strong to enable recovery of its original position. In this case a vertical sprouting stem was formed to replace the inclined stem.

Title:
ANATOMY AND CHEMICAL COMPOSITION OF LIRIODENDRON TULIPIFERA STEMS INCLINED AT DIFFERENT ANGLES
Article Type:
Research Article
DOI:
https://doi.org/10.1163/22941932-00000078
Language:
English
Pages:
463–475
Keywords:
Cell morphology; glucose content; lignin content; microfibril angle; reaction wood; xylose content; yellow poplar
In:
IAWA Journal
In:
Volume 35: Issue 4
Publisher:
Brill
E-ISSN:
2294-1932
Print ISSN:
0928-1541
Subjects:
Botany, Biology

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