Alpine plants offer unique opportunities to study the processes and economics of nutrient storage. The short alpine growing season forces rapid completion of plant growth cycles, which in turn causes competition between vegetative and reproductive growth sinks during the early part of the growing season. Mobilization of stored nitrogen and carbon reserves facilitates competing sinks and permits...

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UNLABELLED PREMISE OF THE STUDY Lamium amplexicaule is a cleistogamous plant that produces both closed flowers (obligately self-pollinated) and open flowers (potentially outcrossed). The conditions for the maintenance of such a mating system depend on the outcrossing rate of the open flowers, which can be estimated using neutral microsatellite markers. • METHODS AND RESULTS Forty primer pa...

Microwave-assisted extraction was used for the extraction of alantolactone and isoalantolactone from Inula helenium. Effects of various experimental factors including ethanol concentration, particle size, microwave radiation time, the ratio of material to liquid and extraction temperature on yield of alantolactone and isoalantolactone were evaluated. The optimal extracting process of the alanto...

Rising human activity in the Arctic, combined with a warming climate, increases probability of introduction and establishment alien plant species. While settlements are known hotspots for persistent populations, little is about colonization particularly susceptible natural habitats. Systematic monitoring lacking available survey methods vary greatly. Here, we present most comprehensive vascular...