DNA microarray analysis suggests that zinc pyrithione causes iron starvation to the yeast Saccharomyces cerevisiae.

Zinc pyrithione has been used in anti-dandruff shampoos and in anti-fouling paint on ships. However, little is known of its mode of action. We characterized the effects of sub-lethal concentrations of zinc pyrithione (Zpt) on Saccharomyces cerevisiae using DNA microarrays.

Stimulated accumulation of lectin mRNA and stress response in Helianthus tuberosus callus by methyl jasmonate.

Callus from Helianthus tuberosus expresses a mannose-specific lectin (HTA). The level of HTA mRNA significantly increased one hour after treatment of the callus with 20 mg/l methyl jasmonate. Following this, fragmentation of the callus DNA at regular intervals was observed together with strong self-fluorescence emission in the callus cells.