The effects of gramine on the bacterium Pseudomonas syringae in culture and on barley leaf disks were studied. Gramine prolonged the lag phase of growth and decreased the size of the population at stationary phase at ...

Water deficit increased susceptibility of barley to the aphid Schizaphis graminum. Proline and glycine-betaine accumulated in the stressed plants. These compounds were incorporated into artificial diets to test their effects ...

To compare the effects of aphid infestation with some effects of wounding and drought-stress, several physiological parameters and metabolite concentrations were measured in infested, mechanically wounded or water-stressed ...