Flavescence dorée (FD) is a European quarantine disease of grapevine caused by FD phytoplasma (FDp) transmitted the leafhopper North American origin Scaphoideus titanus. The affects most important viticultural regions Europe and all wine-growing Serbia. Unlike insect vector, pathogen native to associated with several wild host plants among which alder trees as main source two out three map gene...

Fractionation of carbon isotopes by plants during CO(2) uptake and fixation (Delta(leaf)) varies with environmental conditions, but quantitative patterns of Delta(leaf) across environmental gradients at the global scale are lacking. This impedes interpretation of variability in ancient terrestrial organic matter, which encodes climatic and ecological signals. To address this problem, we convert...

Aim of the study was to monitor changes of genotoxic activity of urban air caused by an incinerator and a petrochemical plant in Tradescantia micronucleus (Trad-MCN) and pollen fertility assays with wild plants (Chelidonium majus, Clematis vitalba, Cichorium intybus, Linaria vulgaris, Robinia pseudoacacia). While in the first sampling period (1997-2000) significantly (on average 80%) more MN we...

The external and internal structures of fruits from 95 taxa representing 27 Ranunculaceae genera of China were studied. The results show that Ranunculaceae could be divided into 4 groups based on the fruit types, epidermal surface, vascular bundle, mesocarp cell, and endocarp cell structures: Group 1: follicle or achene, branching or branching and anastomosing vascular bundles, mesocarp parench...