Tissues213-page15

Tissues213-page15 - cellulose fibers in the wall to control the plane of expansion Enzymes soften non-cellulose cross-links in the cell wall to

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Plant Tissues - 15 Preprophase Microtubule Band and Plane of Division Cells that divide in one plane form a "file" or row of cells. Cells that divide in two or three planes form "cubes" of cells. Cells that divide asymmetrically form unequal volume cells that may also subsequently change their plane of symmetry. Cell expansion following division is similarly controlled, but uses the orientation of
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Unformatted text preview: cellulose fibers in the wall to control the plane of expansion. Enzymes soften non-cellulose cross-links in the cell wall to allow osmosis and turgor to exert pressure on the wall in the plane perpendicular to the cellulose fiber orientation in the cell wall. Microtubules in the outer cytoplasm determine the orientation of the cellulose microfibrils deposited in the cell walls....
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.

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