Phytoalexin induction in plants of tropical environment |
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| Institution: | 1. Seçāo de Fisiologia e Bioquimica de Plantas, Instituto de Botânica, C.P. 4005, 01000 Sāo Paulo, SP, Brazil;2. Instituto de Quimica, Universidade de Sāo Paulo, C.P. 20780, 01498 Sāo Paulo, SP Brazil;1. Institute of Biochemistry and Molecular Medicine, University of Bern, Bern, Switzerland;2. Department of Chemistry of Natural Products, Medical University of Lublin, 20-093, Lublin, Poland;3. Biothermodynamics, TUM School of Life Sciences, Technical University of Munich, 85354, Freising, Germany;4. Department of Pharmacognosy, Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115, Iasi, Romania;5. School of Pharmaceutical Sciences, University of Geneva, CMU, Rue Michel Servet 1, 1211 Geneva 4, Switzerland |
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| Abstract: | Phytoalexin induction, so far reported mainly for cultivated plants, is applied to wild species of tropical environment. The phenomenon is strongly influenced by the experimental techniques. Application of the more common drop diffusate procedure results in the predominance of positive phytoalexin responses in cultivated (rather than in wild) species, while the facilitated diffusion procedure leads to comparable results for cultivated and wild species. Positive phytoalexin responses by both procedures are more common in the rainy (spring and summer) than in the dry (autumn and winter) season. |
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