Summary
Scanning electron microscopy of the leaf surface, phyllaries and achene-complex ofParthenium hysterophorus L. showed the presence of 4 types of glandular and non-glandular trichomes. Chemical analysis established the presence of sesquiterpene lactones in the trichomes that cause eczematous dermatitis.
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Acknowledgments. We thank Dr.Garry Cole, University of Texas, for the use of the AMR-1000 Scanning electron microscope andJudy Stevenson for technical assistance. The work at the University of Texas was supported by the National Science Foundation (Grant No. BMS 71-01088) and the Robert A. Welch Foundation (Grant No. F-130).
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Rodríguez, E., Dillon, M.O., Mabry, T.J. et al. Dermatologically active sesquiterpene lactones in trichomes ofParthenium hysterophorus L. (Compositae). Experientia 32, 236–238 (1976). https://doi.org/10.1007/BF01937785
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DOI: https://doi.org/10.1007/BF01937785