Hypoxylon rubiginosum: Cytology of the ascus and surface morphology of the ascospore |
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| Authors: | Jack D Rogers |
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| Institution: | (1) Departments of Plant Pathology and Forestry and Range Management, Washington State University, Pullman |
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| Abstract: | Summary The haploid chromosome number ofHypoxylon rubiginosum is 5. The ascospore is uninucleate when formed, becoming binucleate following a mitosis. One of the nuclei subsequently disintegrates. Maturing ascospores are uninucleate.The morphology of the ascospore, as revealed by the scanning electron microscope, is described. The outer wall layer — the perisporium — shows heretofore undescribed surface fibrils. The possible significance of the fibrils is discussed.Paper No. 3205. Washington State University College of Agriculture Project 1767. This study was supported in part by National Science Foundation Grants GB-5219 and GB-8004. |
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