Teucrium chamaedrys L. (Lamiaceae) cultivated at the Ghirardi Botanic Garden (Lombardy, Northern Italy) was studied through a four-level research approach: 1) micromorphological and 2) histochemical to describe features of glandular trichomes on vegetative reproductive organs chemical nature their secretory products, by means Light, Fluorescence Scanning Electron Microscopy; 3) phytochemical, w...

The diversification of chemical production in glandular trichomes is important in the development of resistance against pathogens and pests in two species of tomato. We have used genetic and genomic approaches to uncover some of the biochemical and molecular mechanisms that underlie the divergence in trichome metabolism between the wild species Solanum habrochaites LA1777 and its cultivated rel...

*Correspondence: Thomas Eltz, Department of Animal Ecology, Evolution and Biodiversity, Ruhr University Bochum, Universitätsstr. 150, NDEF 05/788, 44780 Bochum, Germany e-mail: thomas.eltz@ ruhr-uni-bochum.de Bees make use of plant substrates in more ways than any other group of insects, which is probably linked to their diversification and ecological success. The highly diverse Megachilidae us...

Transplastomic tobacco (Nicotiana tabacum) plants expressing b-glucosidase (Bgl-1) show modified development. They flower 1 month earlier with an increase in biomass (1.9-fold), height (1.5-fold), and leaf area (1.6-fold) than untransformed plants. Trichome density on the upper and lower leaf surfaces of BGL-1 plants increase by 10and 7-fold, respectively, harboring 5-fold more glandular tricho...

Plant trichomes are specialized epidermal protrusions that, depending on species, are located on the surfaces of leaves, stems, petioles, sepals, seed coats, and other aerial organs. Trichomes not only defend plants against biotic and environmental hazard, but also are able to synthesize, store, and secrete a large number of specialized (secondary) metabolites, including those with significant ...

Jasmonates (JAs) mediate plant responses to insect attack, wounding, pathogen infection, stress, and UV damage and regulate plant fertility, anthocyanin accumulation, trichome formation, and many other plant developmental processes. Arabidopsis thaliana Jasmonate ZIM-domain (JAZ) proteins, substrates of the CORONATINE INSENSITIVE1 (COI1)-based SCF(COI1) complex, negatively regulate these plant ...

Cotton (Gossypium spp) plants produce seed trichomes (cotton fibers) that are an important commodity worldwide; however, genes controlling cotton fiber development have not been characterized. In Arabidopsis thaliana the MYB gene GLABRA1 (GL1) is a central regulator of trichome development. Here, we show that promoter of a cotton fiber gene, RD22like1 (RDL1), contains a homeodomain binding L1 b...