systemin
... that systemin was the first identified plant peptide hormone and helps protect tomato plants against damage from herbivorous insects?
... that <b id="mwD1c"><a href="./Systemin" id="mwD1g" rel="mw:WikiLink" title="Systemin">systemin</a></b> was the first identified <a href="./Plant_peptide_hormone" id="mwD1k" rel="mw:WikiLink" title="Plant peptide hormone">plant peptide hormone</a> and helps protect <a href="./Tomato" id="mwD1o" rel="mw:WikiLink" title="Tomato">tomato</a> plants against damage from <a class="mw-redirect" href="./Herbivory" id="mwD1s" rel="mw:WikiLink" title="Herbivory">herbivorous</a> insects?