Abstract
The constant force of gravity plays a primordial role in the ontogeny of all living organisms. Plants, for example, develop their roots and shoots in accordance with the direction of the gravitational vector. Any change in the magnitude and/or the direction of gravity has an important impact on the development of tissues and cells. In order to understand how the gravitational force affects plant cell growth and differentiation, we established two complementary experimental procedures with which the effect of hyper-gravity on single plant cell development can be assessed. The single model cell system we used is the pollen tube or male gametophyte which, because of its rapid growth behavior, is known for its instant response to external stresses. The physiological response of the pollen tube can be assessed in a quantitative manner based on changes in the composition and spatial distribution of its cell wall components and in the precisely defined pattern of its very dynamic cytoplasmic streaming. Here, we provide a detailed description of the steps required for the immuno-localization of various cell wall components using microwave-assisted techniques and we explain how live imaging of the intracellular traffic can be achieved under hyper-gravity conditions.
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Acknowledgement
Research in the Geitmann lab is supported by grants from the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Fonds Québécois de la Recherche sur la Nature et les Technologies (FQRNT).
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Chebli, Y., Geitmann, A. (2015). Live Cell and Immuno-Labeling Techniques to Study Gravitational Effects on Single Plant Cells. In: Blancaflor, E. (eds) Plant Gravitropism. Methods in Molecular Biology, vol 1309. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-2697-8_16
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DOI: https://doi.org/10.1007/978-1-4939-2697-8_16
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