Journal
PLANT REPRODUCTION
Volume 28, Issue 3-4, Pages 161-169Publisher
SPRINGER
DOI: 10.1007/s00497-015-0267-1
Keywords
Arabidopsis thaliana; Renaissance SR2200; Embryogenesis; Pollen tube; Cell wall staining; Confocal microscopy
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Funding
- German Science Foundation (Deutsche Forschungsgemeinschaft-DFG) [SFB 1101/B01]
- Max Planck Society
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The study of sexual reproduction of plants has traditionally relied on light microscopy in combination with a variety of staining methods. Transgenic lines that label specific cell or tissue types with fluorescent proteins in combination with confocal laser scanning microscopy were an important development to visualize gametophyte development, the fertilization process, and to follow cell differentiation in the early embryo. Staining the cell perimeter to identify surrounding tissue is often a necessary prerequisite to put the fluorescent signal in the right context. Here, we present SCRI Renaissance 2200 (SR2200) as a versatile dye to study various aspects of plant reproduction ranging from pollen tube growth, guidance and reception to the early patterning process in the developing embryo of Arabidopsis thaliana. Furthermore, we demonstrate that SR2200 can be combined with a wide variety of fluorescent proteins. If spectral information can be recorded, even double labeling with dyes that have very similar emission spectra such as 40,6-diamidin-2-phenylindol (DAPI) is possible. The presented staining method can be a single, easy-to-use alternative for a range of other staining protocols commonly used for microscopic analyses in plant reproductive biology.
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