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Pate MC, Pataky JK, Houghton WC, et al. First Report of Puccinia sorghi Virulent on Sweet Corn with the Rp1-D Gene in Florida and Texas. Plant Dis. 2000;84(10):1154doi: 10.1094/PDIS.2000.84.10.1154A.
Pate, M. C., Pataky, J. K., Houghton, W. C., & Teyker, R. H. (2000). First Report of Puccinia sorghi Virulent on Sweet Corn with the Rp1-D Gene in Florida and Texas. Plant disease, 84(10), 1154. https://doi.org/10.1094/PDIS.2000.84.10.1154A
Pate, M C, et al. "First Report of Puccinia sorghi Virulent on Sweet Corn with the Rp1-D Gene in Florida and Texas." Plant disease vol. 84,10 (2000): 1154. doi: https://doi.org/10.1094/PDIS.2000.84.10.1154A
Pate MC, Pataky JK, Houghton WC, Teyker RH. First Report of Puccinia sorghi Virulent on Sweet Corn with the Rp1-D Gene in Florida and Texas. Plant Dis. 2000 Oct;84(10):1154. doi: 10.1094/PDIS.2000.84.10.1154A. PMID: 30831920.
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Plant Dis. 2000 Oct;84(10):1154. doi: 10.1094/PDIS.2000.84.10.1154A.

First Report of Puccinia sorghi Virulent on Sweet Corn with the Rp1-D Gene in Florida and Texas.

Plant disease

M C Pate, J K Pataky, W C Houghton, R H Teyker

Affiliations

  1. University of Illinois, Department of Crop Sciences, Urbana 61801.
  2. Novartis Seeds, Inc., 10290 Greenway Rd., Naples, FL 34114.
  3. Del Monte Foods, Agriculture Research, Rochelle, IL 61015-9990.

PMID: 30831920 DOI: 10.1094/PDIS.2000.84.10.1154A

Abstract

For the past 15 years, the Rp1-D gene has controlled common rust on sweet corn in North America. In August and September 1999, isolates of Puccinia sorghi were collected from Rp1-D sweet corn hybrids in Illinois, Wisconsin, Minnesota, Michigan, and New York. This was the first widespread occurrence in the continental United States of P. sorghi virulent on the Rp1-D gene (1). Isolates of P. sorghi collected from Los Mochis, Mexico, in March 2000 had a pattern of virulence similar to the pattern for the isolates collected in the Midwest in 1999 (2). In April and May 2000, small uredinia were observed on Rp1-D sweet corn in Florida and Texas. In Florida, isolates were collected from six different locations within a 13-km radius near Belle Glade. Three isolates were collected each from Rp1-D and non-Rp sweet corn hybrids. Isolates also were collected from two Rp1-D sweet corn hybrids and a non-Rp sweet corn hybrid near Hondo, TX. Inocula of isolates were increased through one uredinial generation in the greenhouse. Several 1-cm

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