Fission yeast mitochondria are distributed by dynamic microtubules in a motor-independent manner.
Fission yeast mitochondria are distributed by dynamic microtubules in a motor-independent manner.
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裂殖酵母线粒体由动态微管以独立于运动的方式分布。
DOI:
10.1038/srep11023
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发表时间:
2015-06-05
影响因子:
4.6
通讯作者:
Fu C
中科院分区:
文献类型:
--
作者:
Li T;Zheng F;Cheung M;Wang F;Fu C
The cytoskeleton plays a critical role in regulating mitochondria distribution. Similar to axonal mitochondria, the fission yeast mitochondria are distributed by the microtubule cytoskeleton, but this is regulated by a motor-independent mechanism depending on the microtubule associated protein mmb1p as the absence of mmb1p causes mitochondria aggregation. In this study, using a series of chimeric proteins to control the subcellular localization and motility of mitochondria, we show that a chimeric molecule containing a microtubule binding domain and the mitochondria outer membrane protein tom22p can restore the normal interconnected mitochondria network in mmb1-deletion (mmb1∆) cells. In contrast, increasing the motility of mitochondria by using a chimeric molecule containing a kinesin motor domain and tom22p cannot rescue mitochondria aggregation defects in mmb1∆ cells. Intriguingly a chimeric molecule carrying an actin binding domain and tom22p results in mitochondria associated with actin filaments at the actomyosin ring during mitosis, leading to cytokinesis defects. These findings suggest that the passive motor-independent microtubule-based mechanism is the major contributor to mitochondria distribution in wild type fission yeast cells. Hence, we establish that attachment to microtubules, but not kinesin-dependent movement and the actin cytoskeleton, is required and crucial for proper mitochondria distribution in fission yeast.
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DOI:
10.1083/jcb.200601067
发表时间:
2006-05-22
期刊:
The Journal of cell biology
影响因子:
--
作者:
Glater EE;Megeath LJ;Stowers RS;Schwarz TL
通讯作者:
Schwarz TL
影响因子:
64.8
作者:
Moseley, James B.;Mayeux, Adeline;Nurse, Paul
通讯作者:
Nurse, Paul
影响因子:
9.2
作者:
Kapitein, Lukas C.;Janson, Marcel E.;Peterman, Erwin J. G.
通讯作者:
Peterman, Erwin J. G.
影响因子:
4.8
作者:
Tran, PT;Paoletti, A;Chang, F
通讯作者:
Chang, F
DOI:
10.1083/jcb.200605099
发表时间:
2007-01-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Blasius TL;Cai D;Jih GT;Toret CP;Verhey KJ
通讯作者:
Verhey KJ