PLOS Biology<p>ROPs &amp; ROPGEFs are essential for initiating polar growth in plants, but which ones activate <a href="https://fediscience.org/tags/pollen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pollen</span></a> <a href="https://fediscience.org/tags/germination" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>germination</span></a>? This study reveals polarization of specific <a href="https://fediscience.org/tags/ROPGEFs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ROPGEFs</span></a>, identifying special roles for ROPGEF8 &amp; ROPGEF9 in germination <span class="h-card" translate="no"><a href="https://fediscience.org/@PLOSBiology" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>PLOSBiology</span></a></span> <a href="https://plos.io/3S4rV2d" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">plos.io/3S4rV2d</span><span class="invisible"></span></a></p>