Cell expansion and microfibril deposition inClosterium ehrenbergii |
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Authors: | Taizo Hogetsu Masao Yokoyama |
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Institution: | 1. Department of Environmental Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, 183, Tokyo
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Abstract: | Cells ofClosterium ehrenbergii expanded for about 4.5 hr after vegetative cell division and about 3 hr after sexual cell division. Short cells were produced by the sexual expansion. At the early stage of the vegetative and the sexual expansion, most microfibrils were deposited transversely to the cell axis on the inner surface of the new wall. Then, bundles of microfibrils, running in various directions, overlaid the transverse microfibrils already deposited, at the late stage of the both types of expansion. The pattern of microfibril deposition changed from the transverse to the bundled pattern about 4 hr after the vegetative and about 2 hr after the sexual cell division, respectively. The change of pattern of microfibril deposition seemed to be highly correlated with cessation of cell expansion. |
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