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Respiration and Nucleic Acid Metabolism Changes in Cowpea Mosaic Virus-Infected Etiolated Cowpea Seedlings. B. E. L. Lockhart, Postdoctoral Fellow, Department of Plant Pathology, University of Nebraska, Lincoln 68503; J. S. Semancik, Associate Professor, Department of Plant Pathology, University of Nebraska, Lincoln 68503. Phytopathology 60:1852-1853. DOI: 10.1094/Phyto-60-1852.

Higher respiration rates and higher nucleic acid levels in cowpea mosaic virus-infected etiolated cowpea hypocotyls appear to result from a slower rate of decline during senescence rather than to a stimulatory effect accompanying virus infection. It is suggested that ethylene and 3-indoleacetic acid oxidase may be involved in the changes observed in infected tissue by interfering with the normal pattern of nucleic acid redistribution in the developing seedling.