IMPACTS OF SOLIDAGO GIGANTEA, PRUNUS SEROTINA, HERACLEUM MANTEGAZZIANUM AND FALLOPIA JAPONICA INVASIONS ON ECOSYSTEMS

Impacts of the invasive alien Heracleum mantegazzianum on native plant-pollinator interactions

Flavonoids from Prunus serotina Ehrh.

In the course of chemotaxonomic study of the genus Prunus, seven flavonol glycosides were isolated from the leaves of Prunus serotina Ehrh., characterized by UV and NMR spectroscopy, and identified finally as three quercetin monosides: hyperoside, avicularin, reynoutrin, three quercetin biosides: 3-O-(6"-O-alpha-L-rhamnopyranosyl)-beta-D-glucopyranoside, 3-O-(2"-O-alpha-L-rhamnopyranosyl)-beta-...

Two New Saponins from Solidago gigantea

Abstract Two new triterpenoid saponins, named giganteasaponin 5 and giganteasaponin 6, were isolated from the aboveground parts of Solidago gigantea and were defined to be 3-O-[ -D-Apio-D-furanosyl-(1 3)-D-glucopyranosyl-(1 3)-D-glucopyranosyl]-28-O { -L-rhamnopyranosyl-(1 3)-D-xylopyranosyl-(1 4)[ -D-xylopyranosyl-(1 3)]-L-rhamnopyranosyl-(1 2) [ -L-rhamnopyranosyl-(1 3)]-Dxylopyranosyl}-Bayog...

Virulence of soil-borne pathogens and invasion by Prunus serotina.

*Globally, exotic invaders threaten biodiversity and ecosystem function. Studies often report that invading plants are less affected by enemies in their invaded vs home ranges, but few studies have investigated the underlying mechanisms. *Here, we investigated the variation in prevalence, species composition and virulence of soil-borne Pythium pathogens associated with the tree Prunus serotina ...

Impacts of crustacean invasions on parasite dynamics in aquatic ecosystems: A plea for parasite-focused studies

While there is considerable interest in, and good evidence for, the role that parasites play in biological invasions, the potential parallel effects of species introduction on parasite dynamics have clearly received less attention. Indeed, much effort has been focused on how parasites can facilitate or limit invasions, and positively or negatively impact native host species and recipient commun...