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Microtubule changes during the development of generative cells in Hippeastrum vittatum pollen

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Summary

The three-dimensional organization of microtubules in generative cells during their development in pollen grains of Hippeastrum vittatum and the dynamic changes that occur were studied by collecting large quantities of fixed and isolated generative cells for immunofluorescence microscopy. The framework configuration and the arrangement pattern of the microtubule organization was investigated. The microtubule framework changed in shape from being spherical at an early stage to being long spindle-shaped at maturity: various transitional forms were observed: ellipsoidal, pear-shaped and short spindle-shaped. The microtubule arrangement making up this framework changed correspondingly from the original network, which was random in distribution, to axially oriented long bundles via an intermediate pattern composed of a mixture of networks with long bundles. However, cells with the same framework configuration might be heterogeneous in microtubule arrangements.

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Authors and Affiliations

  1. Department of Biology, Wuhan University, 430072, Wuhan, China

    C. Zhou & H. Y. Yang

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  1. C. Zhou
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  2. H. Y. Yang
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Zhou, C., Yang, H.Y. Microtubule changes during the development of generative cells in Hippeastrum vittatum pollen. Sexual Plant Reprod 4, 293–297 (1991). https://doi.org/10.1007/BF00200551

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