An analysis of the food plants and drug plants of native North America.

Acute toxicity and mutagenic activity of Mexican plants used in traditional medicine.

Acaricidal activities of the essential oils from several medicinal plants against the carmine spider mite (Tetranychus cinnabarinus Boisd.) (Acarina: Tetranychidae)

Plants contain an enormous diversity and quantity of secondary metabolites, some of which are toxic and deterrent to herbivores and pathogens This impressive diversity of plant compounds suggests a high probability of interactions among them Synergistic interactions are those in which the combined activity of two or more chemicals is greater than that expected given their individual activities On the other hand, antagonistic interactions are those in which the combined activity of two or more chemicals is less than that expected given their individual activities Synergistic interactions could increase plant fitness whereas antagonistic interactions could decrease plant fitness Interactions are thus potentially very important, not only in explaining the diversity of defense compounds within individual plants, but also in providing insight into plant defense strategies Although synergistic interactions have received increased attention in the ecological literature in the last decade, the number of documented cases of synergy remains small and antagonistic interactions are rarely considered The primary reason for this scarcity may be the difficulty of detecting, analyzing and displaying such interactions Analysis by ANOVA, though sometimes used, often is not appropriate We introduce a simple technique, isobolographic analysis, that is used in pharmacology for detecting and rigorously quantifying synergy and antagonism and provide an example using the brine shrimp toxicity assay More statistically sophisticated approaches, such as isobolographic analysis, will allow ecologists to effectively document the role of chemical synergy and antagonism in interactions between species Such chemical interactions may ultimately provide insight into longstanding, ecological questions

Interactions among plant defense compounds: a method for analysis

https://serval.unil.ch/resource/serval:BIB_475BB8503A64.P001/REF.pdf

Prophylaxis with resin in wood ants

Tropical Plants as Sources of Antiprotozoal Agents J.D. Phillipson, et al. Chemical Studies and Biological Aspects of Some Mexican Plants Used in Traditional Medicine R. Mata. Chemical and Biological Extractives of Lauraceae Species in Costa Rican Tropical Forests O.C. Castro. Zoopharmocognosy E. Rodriquez, R. Wrangham. Insectisides in Tropical Plants with NonNeurotoxic Modes of Action J.T. Arnason, et al. Insect Control Agents from Tropical Plants I. Kubo. Phytochemistry and Biological Activity of Metabolites from Tropical Meliaceae H. Rembold, I. Puhlmann. Recent Advances in the Acetogenins of Annonaceae A. Cave, et al. Phytochemical Diversity in the Order Rutales P.G. Waterman. Plant Cell Cultures and Synthetic Chemistry J.P. Kutney. Utility of the Phytochemeco Database S.M. Beckstrom-Sternberg. Index.

Barbara Meurer-Grimes

Papers

Phytochemical potential of tropical plants