IR-SNOM Analysis of Occluding Substances in Lumina of Xylem Elements in Sapwood of <i>Quercus serrata</i> Attacked by <i>Platypus quercivorus</i>

DOI PDF Web Site Web Site Web Site View 1 Remaining Hide 2 Citations 29 References
  • YAMAGISHI Takayuki
    Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • AIZAWA Kento
    IR & Raman Engineering Division, Jasco Co., Ltd.
  • YAMADA Toshihiro
    The University of Tokyo Chiba Forest, Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • MATSUMOTO Yuji
    Laboratory of Wood Chemistry, Department of Biomaterial Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo

Bibliographic Information

Other Title
  • IR-SNOM Analysis of Occluding Substances in Lumina of Xylem Elements in Sapwood of Quercus serrata Attacked by Platypus quercivorus

Search this article

Abstract

A new microspectroscopic technique was applied to the analysis of occluding deposits in xylem elements of Quercus serrata. The production of this substance is believed to be a defense response of the sapwood against fungal infection. An occluding substance about 10 μm across was analyzed by Infrared-Scanning Near-field Optical Microscopy (IR-SNOM), which allows for the measurement of IR spectrum with high spatial resolution. The near-field IR spectrum of an occluding substance was different from those of xylem elements and featured a lack of the clear C–H absorption band that should appear at 3000 – 2850 cm−1. On the other hand, the absorption band of ester bond exhibited a very strong peak. Among the near-field IR spectra of related compounds, a similar ester absorption peak was observed in the spectrum of pectin and tannic acid. The presence of a C–H absorption band as a very week peak was similar to (+)-catechin and tannic acid.

Journal

  • Analytical Sciences

    Analytical Sciences 29 (4), 411-415, 2013

    The Japan Society for Analytical Chemistry

Citations (2)*help

See more

References(29)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top