Quercus rotundifolia Lam., known as holm oak or evergreen oak, occurs naturally in the western Mediterranean region, mainly part of agroforestry agrosilvopastoral systems Portugal (“montado”) and Spain (“dehesa”), is economically important for acorn production. Less attention has been given to Q. wood, its density variability not known, namely related tree growth. The wood 20 trees was measured...

We studied carotenoids composition and the activities of the xanthophylls pigments in evergreen conifers (Abies sibirica, Juniperus communis, Picea obovata) and dwarf-shrub (Vaccinium vitis-idaea), and in wintergreen herbaceous plants (Ajuga reptans, Pyrola rotundifolia) growing near Syktyvkar (61°67(/) N 50°77(/) E). The carotenoid pool consisted mainly of following xanthophylls: lutein (70%),...

Multivariate methods have been widely used for revealing the structures of communities, and in this paper we explore one particular method, namely correspondence analysis (also called reciprocal averaging) for studying humus profiles by the 'method of small volumes'. The present study was done on humus profiles under holm oak (Quercus rotundifolia), an evergreen Mediterranean species, in the Hi...

Factors influencing Agrobacterium-mediated transformation of 15 Vitis rotundifolia, Vitis rupestris, Vitis vinifera and Vitis hybrids were explored. A green fluorescent protein/neomycin phosphotransferase II (GFP/NPT II) fusion gene was used to measure transient and stable transgene expression levels. Embryogenic cell cultures at different developmental stages were co-cultivated with Agrobacter...

Muscadine grape (Muscadinia rotundifolia [Michx.]) is a fruit crop native to America; it adapts well wide range of biotic and abiotic stresses have thus been grown vinified throughout the southeastern US for centuries. Currently, farmers grow approximately 5,000 acres almost 100 improved muscadine-grape varieties commercial use. Recent research demonstrated fruit’s significant contribution bene...

At the present stage of science development it is necessary to develop and implement grape breeding programs for immunity basing on international level knowledge about genetics pathogens that cause culture diseases. The extensive material genes resistance Plasmopara viticola Erysiphe necator ( Uncinula ), which mildew oidium diseases, has been collected thanks MAS technology. There an evidence ...