Helical Microtubule Arrays and Spiral Growth
نویسندگان
چکیده
منابع مشابه
Helical Microtubule Arrays and Spiral Growth
Asymmetric cell shape depends on the ability of oriented layers of cellulose microfibrils to channel the nondirectional drive of turgor pressure. Tough microfibrils encircling the cell resist increases in girth and redirect the swelling force to a direction perpendicular to the alignment of the microfibrils. This transformation of an isotropic force into directional growth is crucial for settin...
متن کاملHelical microtubule arrays and spiral growth.
Asymmetric cell shape depends on the ability of oriented layers of cellulose microfibrils to channel the nondirectional drive of turgor pressure. Tough microfibrils encircling the cell resist increases in girth and redirect the swelling force to a direction perpendicular to the alignment of the microfibrils. This transformation of an isotropic force into directional growth is crucial for settin...
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Handedness in plant growth may be most familiar to us as tendrils of twinning plants, which generally form consistent rightor left-handed helices as they climb. Also, the petals of several species are arranged like fan blades that twist in the same direction. To unravel molecular components and cellular determinants of handedness and anisotropic growth, we screened seedlings of Arabidopsis thal...
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Anisotropic expansion of plant cells requires organized arrays of cortical microtubules. Mutations in microtubule-associated proteins and a particular mutation in alpha-tubulins were reported to cause abnormal microtubule arrays and result in helical growth in Arabidopsis thaliana. However, the way in which these mutations affect the organization of microtubules remains unknown. We here identif...
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In most proliferating and migrating animal cells, the centrosome is the main site for microtubule (MT) nucleation and anchoring, leading to the formation of radial MT arrays in which MT minus ends are anchored at the centrosomes and plus ends extend to the cell periphery. By contrast, in most differentiated animal cell types, including muscle, epithelial and neuronal cells, as well as most fung...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2002
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.141030