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The Ultrastructure of Sporogenesis in the Pycnial Stage of Puccinia sorghi
F. H. J. Rijkenberg and Susarah J. Truter
Vol. 66, No. 2 (Mar. - Apr., 1974), pp. 319-326
Published by: Mycological Society of America
Stable URL: http://www.jstor.org/stable/3758365
Page Count: 8
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Sporogenesis in pycnia of Puccinia sorghi is annellophoric, but at secession the spore retains the septal lamella and at least part of the lower septal wall. Pycniospores are bounded by a thin (±65 nm) wall and contain a nucleolate nucleus, endoplasmic reticulum, tubule-containing structures, several short mitochondria with predominantly platelike cristae, many ribosomes, and a few lipoid bodies. Septal pores were sectioned infrequently in pycnia, but more commonly in inter- and intracellular hyphae. All were equipped with a pulley-wheel apparatus.
Mycologia © 1974 Mycological Society of America