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Calendar Name: seminars
Scheduled for: Friday, March 2 2012, 14:00 - 15:30
Event text:    Prof Takashi Hashimoto
	       
	       Graduate School of Biological Sciences
	       Nara Institute of Science and Technology 
	       
	       Takayama-cho
	       Ikoma
	       JAPAN
Details:       “Organization of cortical microtubule arrays in
	       Arabidopsis”
	       
	       ABSTRACT
	       Microtubules are nucleated from dispersed cortical
	       regions in interphase plant cells, where the majority of
	       nucleation events occur from the
	       -tubulin-containing sites on the pre-existing
	       microtubules as branching patterns.  The minus-ends of
	       newly formed daughter microtubules are usually released
	       from sites of nucleation by the action of the
	       microtubule severing complex katanin, and the free
	       microtubules are then transported on the cortex by
	       polymer treadmilling.  Subsequent
	       microtubule-microtubule interactions promote microtubule
	       bundling and ordering, which establishes particular
	       patterns of interphase cortical arrays.	With special
	       interests in helical microtubule arrays, we have been
	       studying possible mechanisms and particular molecules
	       that underlie organization of cortical microtubule
	       arrays.
	       
	       M. Nakamura, D. Ehrhardt, and T. Hashimoto (2010)
	       Microtubule and katanin dependent dynamics of
	       microtubule nucleation complexes in the Arabidopsis
	       cortical array. Nature Cell Biol. 12: 1064-1070.
	       M. Nakamura, and T. Hashimoto (2009) A mutation in the
	       Arabidopsis -tubulin-containing complex subunit
	       causes helical growth and abnormal microtubule
	       branching. J. Cell Sci. 122: 2208-2217.
	       T. Ishida, Y. Kaneko, M. Iwano, and T. Hashimoto (2007)
	       Helical microtubule arrays in a collection of twisting
	       tubulin mutants of Arabiodpsis thaliana. Proc. Natl.
	       Acad. Sci. USA 104: 8544-8549.

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