Steven G. Hallett

TL;DR: Novel evidence is presented that antifungal phytochemistry of the invasive plant, Alliaria petiolata, a European invader of North American forests, suppresses native plant growth by disrupting mutualistic associations between native canopy tree seedlings and belowground arbuscular mycorrhizal fungi.

TL;DR: The results indicate that phytochemicals, benign to resistant mycorrhizal symbionts in the home range, may be lethal to naïve native mutualists in the introduced range and indirectly suppress the plants that rely on them.

TL;DR: A number of niche situations will remain in which host-specific plant pathogens can be developed as bioherbicides, such as for parasitic weeds and narcotic plants, but more research should be conducted with virulent, broad host range organisms.

TL;DR: Some hypotheses are proposed to guide predictions of the outcomes of the dislocation of plants from coevolved relationships and, hence, the outcome of plant geographic displacement.

TL;DR: The authors examined the impact on learning outcomes of 15 agricultural students participating in a two-part course entitled China: Globalization, Agriculture and Environment, and found that the experience contributed minimally to the students' knowledge of Chinese agriculture and environmental issues or to their understanding of the general nature of the global economy, above and beyond the classroom part of the course.