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All Journal Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society
Yuki Takahashi
Division of Environmental Science and Technology, Graduate School of Agriculture, Kyoto University Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502
Agriculture, Biological Sciences & Forestry

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Chemical and Mechanical Properties of Cuticular Membranes Isolated from Young Matured Leaves of Sonneratia alba Yuki Takahashi; Shuntaro Tsubaki; Masahiro Sakamoto; Shin Watanabe; Wahyu Dwianto; Jun-ichi Azuma
Wood Research Journal Vol 2, No 1 (2011): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2011.2.1.69-72

Abstract

Leaf cuticular membranes (CMs) of Sonneratia alba are considered to play an important role in environmental tolerance, and chemical and mechanical properties of their CMs are crucial factors which provide protective barrier and mechanical supports.  Leaf CMs were enzymatically isolated from both adaxial and abaxial sides of young matured leaves (L3), and their chemical and mechanical properties were compared. Chemical compositions of both CMs were similar reflecting their morphological similarity.  The adaxial CM was consisted of 23.4% wax, 64.2% cutin, 7.4% cutan and 6.1% polysaccharides with thickness of 9 µm, and the abaxial CM had the values of 23.9%, 63.2%, 9.4%, 4.2% and 8 µm, respectively.  Major monomers in both cutins were 9,10-epoxy-18-hydroxyoctadecanoic acid and 9(10),16-dihydroxyhexadecanoic acid.  Mechanical properties of both CMs were also similar reflecting their morphological and chemical compositional similarities.
Chemical and Mechanical Properties of Cuticular Membranes Isolated from Young Matured Leaves of Sonneratia alba Yuki Takahashi; Shuntaro Tsubaki; Masahiro Sakamoto; Shin Watanabe; Wahyu Dwianto; Jun-ichi Azuma
Wood Research Journal Vol 2, No 1 (2011): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2011.2.1.69-72

Abstract

Leaf cuticular membranes (CMs) of Sonneratia alba are considered to play an important role in environmental tolerance, and chemical and mechanical properties of their CMs are crucial factors which provide protective barrier and mechanical supports.  Leaf CMs were enzymatically isolated from both adaxial and abaxial sides of young matured leaves (L3), and their chemical and mechanical properties were compared. Chemical compositions of both CMs were similar reflecting their morphological similarity.  The adaxial CM was consisted of 23.4% wax, 64.2% cutin, 7.4% cutan and 6.1% polysaccharides with thickness of 9 µm, and the abaxial CM had the values of 23.9%, 63.2%, 9.4%, 4.2% and 8 µm, respectively.  Major monomers in both cutins were 9,10-epoxy-18-hydroxyoctadecanoic acid and 9(10),16-dihydroxyhexadecanoic acid.  Mechanical properties of both CMs were also similar reflecting their morphological and chemical compositional similarities.
Co-Authors Jun-ichi Azuma Masahiro Sakamoto Shin Watanabe Shuntaro Tsubaki Wahyu Dwianto