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Science News for July 14, 1998


The Touch Of Phytophthora

Plant cells respond to fungal invasion by generating reactive oxygen intermediates, ion fluxes, and changes in gene activity. Gentle mechanical stimulation mimics this effect, suggesting physical contact is sufficient for triggering the defense response.

SourceMax-Planck-Gesellschaft·JournalProceedings of the National Academy of Sciences·DateJul 14, 1998

CSIRO Reduces 'Cellulite' In Oranges

A new spray-on treatment has reduced 'albedo breakdown', a condition causing unsightly puffiness in oranges, by up to 20-25% in Australian orange crops. The treatment uses mineral calcium to address the issue, which can significantly impact fruit value and quality.