Merely walking up to a plant and handling its leaves may skew outcomes in studies of predators attacking plants. Wild tobacco heeds 'ouch' from sagebrush.
Threatened mothers have tougher offspring.
Boosting tomato's SOS gets pests killed. Mlot, C. 1997. Plants with a bug home advantage. James F. Cahill Jr. Department of Biological Sciences University of Alberta Edmonton, Alberta T6G 2E9 Canada Edward Farmer Gene Expression Laboratory Ecology Institute University of Lausanne 1015 Lausanne Switzerland Richard Karban Department of Entomology University of California, Davis Davis, CA 95616 Jack C. Schultz Ecological and Molecular Plant Physiology Program Penn State University University Park, PA 16802 From Science News , Vol. All rights reserved.