Changes in morphology and chemistry of leaf surface in response to herbivore damage may increase plant resistance to subsequent herbivore attack; however, there is lack of studies on induced responses of glandular trichomes and their exudates in woody plants and on effects of these changes on herbivores. We studied delayed induced responses in leaf surface traits of five clones of silver birch ...

Ambrosia pollen contains strong allergens. Allergic reactions can also be caused by direct contact with the plant. The investigations of dynamics seasons were conducted in Lublin (Poland) and Ivano-Frankivsk (Ukraine) 2013–2015. onset end seasons, maximum concentrations, annual sums, number days an allergy risk determined. Additionally, types trichomes present on different parts artemisiifolia ...

Tribe Stachydeae with 12 genera were divided into two major clades: Melitis and Eurystachys clades consisting of all attributed to except Melittis. Recently, a broadly defined clade falling well-supported have been formally named in phylogenetic nomenclature. In the present study, trichomes 70 spp. from nine pollens 53 six investigated using scanning electron microscopy (SEM) order draw taxonom...