Spectral indices to rapidly monitor chloroplast distribution patterns of three cecidomyiid galls

Meng Yuan Huang, Kuan Hung Lin, Tin Han Shih, Yung Ta Chang, Chi Ming Yang

Research output: Contribution to journalComment/debate


The objective of this research was to study altered distributions of chloroplasts in cecidomyiid galls derived from the leaves of Machilus thunbergii Sieb. & Zucc. and Litsea acuminata (Blume) Kurata using confocal laser-scanning microscopy and transmittance spectra. Chloroplasts in all gall tissues gradually decreased in the direction from the exterior toward the inside larval chamber based on Integrated Optical Density (IOD) and absorptivity indices, and chloroplast distributions in various gall tissues were species-specific. Different species of herbivorous insect dramatically altered chloroplasts in their host leaves. The spectral index was significantly and positively correlated with the IOD, and therefore, the transmittance spectra could be utilized as a tool to easily and quickly study the ecophysiology of galls.

Original languageEnglish
Pages (from-to)438-441
Number of pages4
Issue number4
Publication statusPublished - 2019 Dec



  • Cecidomyiid gall
  • Chloroplast
  • Confocal microscopy
  • Photosynthesis
  • Transmittance spectra

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

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