Understanding the role of consumers in density-dependent plant population dynamics is a long-standing goal in ecology. However, the generality of herbivory effects across heterogeneous landscapes is poorly understood due to the pervasive influence of context-dependence. We tested effects of native insect herbivory on the population dynamics of an exotic thistle, Cirsium vulgare, in a field expe...

Weedy invasive Cirsium spp. are widespread in temperate regions of North America and some of their biological control agents have attacked native Cirsium spp. A phylogenetic tree was developed from DNA sequences for the internal transcribed spacer and external transcribed spacer regions from native and non-native Great Plains Cirsium spp. and other thistles to determine if host specificity foll...

In many areas of China Cirsium setosum is used as Cirsium japonicum DC. Although the two herbs have similar appearance and many similar compounds, they are totally different medicinal material, and have different pharmacodynamic actions. The fingerprint spectrum can be a good tool to distinguish the two herbs and control the quality of Cirsium japonicum DC. In this paper, the chemical fingerpri...

the brain and spinal cord have a limited capacity for self-repair under damaged conditions. one of the best options to overcome these limitations involves the use of phytochemicals as potential therapeutic agents. in this study, we have aimed to investigate the effects of di-(2-ethylhexyl) phthalate (dehp) on hippocampus-derived neural stem cells (nscs) proliferation to search phytochemical can...