Nature Cell Biology
7, 927 - 929 (2005)
doi:10.1038/ncb1005-927
How and Y plant microtubules branchRichard Cyr
Richard Cyr is in the Department of Biology, Pennsylvania State University, 208 Mueller Laboratory, University Park, PA 16802, USA. rjc8@psu.edu
Plant cortical microtubule arrays influence plant morphogenesis, but the nature of microtubule genesis and self-organization has long puzzled cell biologists. In this issue, Murata and coworkers provide some answers by showing that  -tubulin nucleates new microtubules along the lengths of existing microtubules, resulting in dispersed 'Y'-branched organizational centres.
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