Page 167 - Fundamentals of Light Microscopy and Electronic Imaging
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150      POLARIZATION MICROSCOPY









                                                                                    Borderd pits







                                                                                   (a)

















                                                                                    Starch grains






                                                                                   (b)









                                                                      50  m



                                   Figure 9-7
                                   Histological sections of plant tissues with birefringent objects. (a) Radial section of
                                   pine wood containing cellulose walls and bordered pits. (b) Cross section of a
                                   buttercup root, an herbaceous plant. The cortical cells are filled with starch gains.
                                   (Specimen slides are from Carolina Biological Supply Company, Inc.)
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