RNA polymerase type I (plastid-encoded polymerase, PEP) is one of the key chloroplast enzymes. However, the rpo genes that encode its subunits (rpoA, rpoB, rpoC1 and rpoC2) are relatively rapidly evolving sequences. The aim of this study was to investigate the rate of the molecular evolution of rpo genes and to evaluate them as phylogenetic markers on the example of the genus Lamium L. (Lamiace...

(Assimilate partitioning in leaves of the raffinose-storing herb Lamium album L.: photosynthesis and carbon partitioning throughout the photoperiod). Lamium album accumulates starch, sucrose and raffinose-family oligosaccharides (RFO) as the major products of photosynthesis. These products were measured in leaves throughout a sixteen-hour photoperiod and under various irradiance conditions. The...

Phytochemical study of the aqueous extract of the flowering tops of Lamium album led to identification of the antiviral iridoid isomers lamiridosins A and B (1, 2). These compounds were found to significantly inhibit hepatitis C virus entry (IC(50) 2.31 muM) in vitro. Studies of 14 iridoid analogues showed that, while the parent iridoid glucosides demonstrated no anti-HCV entry activity, the ag...

(Assimilate partitioning in leaves of the raffinose-storing herb Lamium album L.: the effects of altering sourcesink balance). In Lamium album, sucrose and raffinose-family oligosaccharides are the major products of photosynthesis that are stored in leaves. Using gas analysis and CO 2 feeding, we compared photosynthesis and the partitioning of recently-fixed carbon in plants where sink activity...

Weeds as reservoirs for destructive plant pathogens have a significant impact on the viral epidemiology, ecology and, result, local economy, and are therefore being investigated in many parts of world. Thus, aim this study was to investigate virus occurrence red dead-nettle plants (Lamium purpureum L.) widespread urban field conditions throughout Kyiv region Ukraine. Methods. Field crop observa...