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April 2007 Spotlight Articles Selected by the Editors of Plant Disease, Phytopathology, and Molecular Plant-Microbe Interactions (MPMI) Plant Disease Editor’s Pick In the April Plant Disease Editor’s Pick, learn about new transgenic maize hybrids that have benefits in addition to insect resistance. Because the Bt Cry1Ab protein prevents tunneling by Asian corn borers, the incidence of bacterial stalk and ear rot, caused by Erwinia chrysanthemi pv. zeae, was reduced, and yields increased in field trials in the Philippines. Phytopathology Editor’s Pick It is well established that biocontrol agents can elicit systemic defense responses in plants. In the April Phytopathology Editor’s Pick, the mechanism(s) of this interaction is investigated using a microarray approach. This analysis revealed a systemic upregulation of genes involved in multiple functions in /Trichoderma/-treated plants; these included in genes involved in biotic and abiotic stress, but not those typically associated with SAR. MPMI Editor’s Pick The role of plant hormones in plant diseases has a long and often confusing history. Many pathogens make hormones, others stimulate changes in plant hormone levels, and application of yet other hormones can affect interaction outcomes. Kaliff, Staal, Myrenas, and Dixelius of the Swedish University of Agricultural Sciences in Uppsala demonstrate a critical role for absiscic acid in resistance of Arabidopsis to the fungal pathogen Leptosphaeria maculans. An online subscription is needed to access the full articles. Members of the media should contact Amy Steigman at mailto:asteigman@scisoc.org or +1.651.454.7250 for more information or to receive a copy of the full articles. Return to Plant Disease Interpretive Summaries Archive
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