A strikingly-angled spindle mediates nuclear migration during colonization of rice cells infected by Magnaporthe oryzae

被引：4
作者：
Pfeifer, Mariel A. [1 ]
Jones, Kiersun [1 ]
Khang, Chang Hyun [1 ]
机构：
[1] Univ Georgia, Dept Plant Biol, Athens, GA 30602 USA
来源：
FUNGAL GENETICS AND BIOLOGY | 2019年 / 126卷
基金：
美国食品与农业研究所; 美国国家科学基金会;
关键词：
Magnaporthe oryzae; Microtubules; Mitosis; Nuclear migration; Rice blast; Spindle angle; BLAST FUNGUS; PLANT INFECTION; INVASION; MITOSIS; APPRESSORIUM; MICROTUBULE; DYNAMICS; TUBULIN; GRISEA; CYCLE;
D O I：
10.1016/j.fgb.2019.02.005
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
To cause rice blast disease, Magnaporthe oryzae must properly organize microtubules and position nuclei during colonization of host cells. Live cell confocal imaging of fluorescently-tagged microtubules and nuclei of M. oryzae invasive hyphae reveals that microtubules form a cage-like arrangement around nuclei during interphase and that the mitotic spindle forms and mediates nuclear migration while integrity of the nuclear envelope is lost. Our results also unveil a strikingly-angled spindle during nuclear migration through the narrow invasive hyphal peg, suggesting a yet-to-be discovered mechanism of mitotic nuclear migration when invasive hyphae move to adjacent rice cells.
引用
收藏
页码：56 / 60
页数：5
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