The study aims to investigate the effects of n-butanol extraction of Potentilla anserina L. (NP) on cortical neuronal cultures and subject to 2h of oxygen deprivation hypoxia-like injury. The investigation demonstrated that NP at 2, 1 and 0.5 mg/ml effectively prevented the decrease of neuron survival rates and the increase of LDH release after exposure of cortical cultures to 2h-oxygen depriva...

Species in the ivesioid clade of Potentilla (Rosaceae) are endemic to western North America, an area that underwent widespread aridification during the global temperature decrease following the Mid-Miocene Climatic Optimum. Several morphological features interpreted as adaptations to drought are found in the clade, and many species occupy extremely dry habitats. Recent phylogenetic analyses hav...

Se documenta la presencia en los Pirineos de Potentilla pedata, sobre base criterios morfológicos ampliamente aceptados últimos años zona mediterránea. Esta especie presenta caracteres parte intermedios entre P. recta y hirta.

A pattern of seasonal changes in the morphological and anatomical leaf traits is reported for Potentilla argentea L. var. tenuiloba (Jord.) Sw. of temperate-climate areas in central Poland. Leaf area, perimeter, dry mass and lamina thickness were measured in summer and autumn leaves of the same individuals. Dissection index, density and specifi c leaf area were calculated. Signifi cant differen...

In a wet oligotrophic meadow located in the Czech Republic, a factorial experiment with treatments consisting of fertilization, mowing, and removal of the dominant species (Molinia caerulea) was established in 1994. In 1997 Holcus lanatus, Molinia caerulea, Potentilla erecta, Prunella vulgaris, and Ranunculus auricomus were examined for arbuscular mycorrhizal (AM) hyphae, arbuscles, and vesicle...

Soil biota can facilitate exotic plant invasions and these effects can be influenced by specific phylogenetic relationships among plant taxa. We measured the effects of sterilizing soils from different native plant monocultures on the growth of Potentilla recta, an exotic invasive forb in North America, and conducted plant-soil feedback experiments with P. recta, two native congeners, a close c...