Cellulose structure and lignin distribution in normal and compression wood of the Maidenhair tree (Ginkgo biloba L.)

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Cellulose structure and lignin distribution in normal and compression wood of the Maidenhair tree (Ginkgo biloba L.)

Seppo Andersson [et al.] - Nama Orang;

We studied in detail the mean microfibril angle and the width of cellulose crystals from the pith to the bark of a 15-year-old Maidenhair tree (Ginkgo biloba L.). The orientation of cellulose microfibrils with respect to the cell axis and the width and length of cellulose crystallites were determined using Xray diffraction. Raman microscopy was used to compare the lignin distribution in the cell wall of normal/opposite and compression wood, which was found near the pith. Ginkgo biloba showed a relatively large mean microfibril angle, varying between 19° and 39° in the S2 layer, and the average width of cellulose crystallites was 3.1–3.2 nm. Mild compression wood without any intercellular spaces or helical cavities was observed near the pith. Slit-like bordered pit openings and a heavily lignified S2L layer confirmed the presence of compression wood. Ginkgo biloba showed typical features present in the juvenile wood of conifers. The microfibril angle remained large over the 14 annual rings. The entire stem disc, with a diameter of 18 cm, was considered to consist of juvenile
wood. The properties of juvenile and compression wood as well as the cellulose orientation and crystalline width indicate that the wood formation of G. biloba is similar to that of modern conifers.

Keywords: Cellulose structure; cell wall; compression wood; lignin; Maidenhair tree; microfibril angle

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Informasi Detail

Judul Seri: J Integr Plant Biol
No. Panggil: -
Penerbit: New York : Institute of Botany, Chinese Academy of Sciences., 2015
Deskripsi Fisik: J Integr Plant Biol 57: 388–395
Bahasa: English
ISBN/ISSN: 10.1111/jipb.12349
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: 57
Subjek: BIOLOGI TANAMAN
Info Detail Spesifik: -
Pernyataan Tanggungjawab: agus

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FULL TEXT: Cellulose structure and lignin distribution in normal and compression wood of the Maidenhair tree (Ginkgo biloba L.)

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