functionalized materials. In vitro synthesis of cellulose microfibrils (CMFs) has become
possible using purified cellulose synthase (CESA) isoforms from Physcomitrium patens and
hybrid aspen. The exact nature of these in vitro fibrils remains unknown. Here, we
characterize in vitro-synthesized fibers made by CESAs present in membrane fractions of P.
patens over-expressing CESA5 by cryo-electron tomography and dynamic nuclear …