Toxicity of Vegetable Tannins on Crustacea Associated with Alpine Mosquito Breeding Sites

Effects of croton urucurana extracts and crude resin on Anagasta kuehniella (Lepidoptera: Pyralidae)

“…Other investigators, after evaluating the toxic effects of tannins on the fauna associated with Culicidae, suggested that the vegetable tannins can be useful as a complement in control programs of hematophagous species of mosquitoes associated with the human diseases. Studies carried out with the extracts of Magonia pubescens (Sapindaceae) provided evidence that the action mechanisms and morphological changes leading to the death in A. aegypti were similar to those of tannic acid (Arruda et al, 2003;Pautou et al, 2000;. Moreover, toxicological studies performed in the rabbits, mice and guinea pigs have proved to be atoxic, according to the rules for plant products.…”

Mapping of Resistance to Vegetable Polyphenols among Aedes Taxa (Diptera, Culicidae) on a Molecular Phylogeny

“…In alpine mosquito breeding sites, the dietary leaf litter originating from the riparian vegetation is involved in ecological discrimination by larval Culicidae and other detritus-feeding Arthropoda through differential toxicity among taxa and ecotypes (Rey et al, 1996;Pautou et al, 2001). This ecotoxicological interaction, which has been particularly analyzed between alder (Alnus glutinosa (L.) Gaertn.)…”

Complex Mixture-Associated Hormesis and Toxicity: The Case of Leather Tanning Industry

“…P1: % malformed plutei; P2: % embryos arrested before pluteus stage (blastulae, gastrulae); D: % dead embryos (e.g., pre-hatching arrest). From De Nicola et al 2007a, with permission. 2000; Kaur et al 2000;Lehmann et al 2000;Pautou et al 2000;Rajalakshmi et al 2001;Sasaki et al 1990;Wang et al 2001). Tannins, due to their polyphenolic structure, may be viewed as a relevant case for hormesis-inducing agent as expected from the recognized shifts from tannin-associated chelation to biomolecule denaturation (Andrade et al 2005; Lestienne et al 2005).…”

“…However, most reports have focused on individual agents, or on limited sets of chemical analogues, whereas only a few studies have been devoted to hormesis-related effects of complex or model mixtures (Pagano et al 1986;Kaur et al 2000;Lehmann et al 2000;Pautou et al 2000;Backhaus et al 2004;Koshy et al 2008).…”