title: Nucleating new branches from old.
abstract: Centrosome- and chromatin-based microtubule nucleation pathways have been implicated in spindle assembly. Using total internal reflection fluorescent microscopy and Xenopus egg extracts, Petry et al. demonstrate that new microtubules can also nucleate and branch out from existing ones in animal cells.
authors: Department of Embryology, Carnegie Institution for Science, Baltimore, MD 21218, USA. zheng@ciwemb.edu
authors: Yixian
authors: Y
authors: Zheng
authors: Pablo A
authors: PA
authors: Iglesias