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- Title
Occurrence of polygodial in plant organs and tissue culture of Polygonum hydropiper.
- Authors
Hagendoorn, Marc J. M.; Geelen, Threes A. M.; Van Reek, Teris A.; Jamar, Diaan C. L.; Tetteroo, Frans A. A.; Van Der Plas, Linus H. W.
- Abstract
Shoots of Polygonum hydropiper L. (waterpepper), especially in the leaves and flower-heads, contain significant amounts of the sesquiterpenoid polygodial, a compound with a potential use as a natural pesticide. The polygodial content of the tepals is particularly high: up to 8.5% of the dry weight. Roots and seeds do not contain detectable amounts of polygodial. Polygodial containing organs e.g. leaves and tepals, were found to contain cavities. Fourier transform infra-red (FTIR) microspectroscopy demonstrated that polygodial or its congeners are found in these cavities but not in other tissues or cells. Comparable cavities containing polygodial-like compounds were absent in the closely related species Polygonum persicaria L. Callus cultures and cell suspensions as well as root- and shoot cultures were initiated from mature P. hydropiper plants. Polygodial could be detected only in shoot cultures. Our results indicate that functioning plastids may be essential for polygodial production and cavities for its accumulation.
- Subjects
POLYGONUM; PLANT shoots; LEAVES; SESQUITERPENES; BIOPESTICIDES; INSECT antifeedants; FOURIER transform infrared spectroscopy; TISSUE culture
- Publication
Physiologia Plantarum, 1994, Vol 92, Issue 4, p595
- ISSN
0031-9317
- Publication type
Article
- DOI
10.1034/j.1399-3054.1994.920408.x