Journal of PhytopathologyVolume 98, Issue 3 p. 228-236 Phytoalexin Production in Corn Resistant to Three Species of Helminthosporium Fungi I. U. Obi, Corresponding Author I. U. Obi Department of Plant Pathology, University of Illinois Author's addresses: Dr. I. U. Obi, Department of Crop Science, University of Nigeria, Nsukka (Nigeria). Prof. A. L. Hooker and D. r. S. M. Lim, Department of Plant Pathology, University of Illinois, Urbana, Illinois 61801 (U.S.A.).Search for more papers by this authorA. L. Hooker, Corresponding Author A. L. Hooker Department of Plant Pathology, University of Illinois Author's addresses: Dr. I. U. Obi, Department of Crop Science, University of Nigeria, Nsukka (Nigeria). Prof. A. L. Hooker and D. r. S. M. Lim, Department of Plant Pathology, University of Illinois, Urbana, Illinois 61801 (U.S.A.).Search for more papers by this authorS. M. Lim, Corresponding Author S. M. Lim Department of Plant Pathology, University of Illinois Author's addresses: Dr. I. U. Obi, Department of Crop Science, University of Nigeria, Nsukka (Nigeria). Prof. A. L. Hooker and D. r. S. M. Lim, Department of Plant Pathology, University of Illinois, Urbana, Illinois 61801 (U.S.A.).Search for more papers by this author I. U. Obi, Corresponding Author I. U. Obi Department of Plant Pathology, University of Illinois Author's addresses: Dr. I. U. Obi, Department of Crop Science, University of Nigeria, Nsukka (Nigeria). Prof. A. L. Hooker and D. r. S. M. Lim, Department of Plant Pathology, University of Illinois, Urbana, Illinois 61801 (U.S.A.).Search for more papers by this authorA. L. Hooker, Corresponding Author A. L. Hooker Department of Plant Pathology, University of Illinois Author's addresses: Dr. I. U. Obi, Department of Crop Science, University of Nigeria, Nsukka (Nigeria). Prof. A. L. Hooker and D. r. S. M. Lim, Department of Plant Pathology, University of Illinois, Urbana, Illinois 61801 (U.S.A.).Search for more papers by this authorS. M. Lim, Corresponding Author S. M. Lim Department of Plant Pathology, University of Illinois Author's addresses: Dr. I. U. Obi, Department of Crop Science, University of Nigeria, Nsukka (Nigeria). Prof. A. L. Hooker and D. r. S. M. Lim, Department of Plant Pathology, University of Illinois, Urbana, Illinois 61801 (U.S.A.).Search for more papers by this author First published: July 1980 https://doi.org/10.1111/j.1439-0434.1980.tb03737.xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Volume98, Issue3July 1980Pages 228-236 RelatedInformation

Seedlings and adult plants of 28 inbred lines, representing a diversity of endosperm types and cultivar origin, expressed chlorotic lesions when infected with Helminthosporium turcicum Pass. The resistance in each line was inherited as a single dominant gene.

Southern corn rust (Puccinia polysora Underw.) has caused losses in late‐planted maize (Zea mays L.) in the southern United States in 1972, 1973, and 1974. Two susceptible × resistant crosses to this rust were made, and the parents, F1 F2, and BC1 populations were studied in the greenhouse for their response to this rust. A single dominant gene for resistance to corn rust was found in a recovered inbred line (B1138TRpp). The original source of resistance (B1138T) comes from South Africa and has resistance to Bipolaris turcicum (Pass.)Shoemaker.

Chlorotic‐lesion resistance in corn ( Zea mays L.) to Helminthosporium maydis race O was inherited as a single recessive gene. Resistant plants in both normal and cms‐T cytoplasm expressed small chlorotic lesions whereas suceptible plant exhibited large tan to brown, oval to rectangular lesions.