To test several predictions of a model of linear, size-dependent reproductive output in plants, we analyzed the relationship between shoot vegetative (v) and reproductive (r) mass in five experiments on Solidago altissima from an invading population in Switzerland. There was large environmentally-induced and genetic variation in r and v. A large amount of variation in r could be explained by va...

Methanolic extracts from the aerial parts and roots of two Scutellaria species, S. alpina and S. altissima, and five polyphenols from these plants demonstrated a significant ability to inhibit the formation of advanced glycation end-products (AGE) in vitro. S. alpina, which is richer in polyphenolic compounds, had strong antiglycation properties. These extracts demonstrated also high activity i...

Ganoderma colossum is a rare species of Ganodermataceae family with many biological and biochemical properties. It is associated with rot, wilt, dieback, and wood decay of many host plants such as Ficus carcica, Celtis laevigata, Pinus hondurensis, Callitris robusta, Eucalyptus citrodora, E. paniculata, E. puncata, and Phoenix canariensis. In Oman, this pathogen was isolated as new records from...

Invasion of forest ecosystems by invader plants and fires are two the most serious environmental problems in world. Climate change is believed to strongly influence these processes, invasibility invasive alien (IAPs) likely enhance landscape degradation. Therefore, it urgent study germinative behaviour relation fire detect possible barrier species IAPs among native species. Tree usually damagin...

Tanulmányunkban a mirigyes bálványfa előfordulási gyakoriságának és tömegességének változásait vizsgáltuk egyes fahasználatokkal, illetve tuskópászták kialakításával érintett meszes homoki erdőállományokban (Felső-Kiskunság, Peszéri-erdő). Eredményeink alapján elmondható, hogy gyérítések tarvágások fafaj magbankjának drasztikus mértékű aktiválódásához vezetnek. A fényellátottság hirtelen javulá...