appressorium
... that the appressorium—a specialized cell typical of many fungal plant pathogens—can develop enough turgor pressure to puncture Mylar?
... that the <b id="mwDMs"><a href="./Appressorium" id="mwDMw" rel="mw:WikiLink" title="Appressorium">appressorium</a></b>—a specialized cell typical of many fungal <a class="mw-redirect" href="./Plant_pathogen" id="mwDM0" rel="mw:WikiLink" title="Plant pathogen">plant pathogens</a>—can develop enough <a href="./Turgor_pressure" id="mwDM4" rel="mw:WikiLink" title="Turgor pressure">turgor pressure</a> to puncture <a class="mw-redirect" href="./Mylar" id="mwDM8" rel="mw:WikiLink" title="Mylar">Mylar</a>?