Full TGIF Record # 311145
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Web URL(s):http://www.turfgrasssociety.eu/
    Last checked: 08/12/2020
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Publication Type:
Author(s):Zhou, Binbin; Bailey, Ana; Niblett, C. L.; Luo, Hong; Qu, Rongda
Author Affiliation:Zhou and Qu: Crop Science Department, North Carolina State University, Raleigh; Bailey and Niblett: Venganza Inc. St. Augustine; Luo: Department of Genetics and Biochemistry, Clemson University, Clemson
Title:Introduced brown patch disease resistance in transgenic tall fescue
Section:Turfgrass genetics and breeding: Oral presentations
Other records with the "Turfgrass genetics and breeding: Oral presentations" Section
Meeting Info.:Salgados, Albufeira, Portugal: June 5-8, 2016
Source:5th European Turfgrass Society Conference Proceedings. June 2016, p. 7-8.
Publishing Information:Faro, Portugal: European Turfgrass Society
# of Pages:2
Keywords:TIC Keywords: Brown patch; Disease resistance; Festuca arundinacea; Genetically modified organisms; Rhizoctonia solani; Transgenic turfgrasses
Abstract/Contents:Tall fescue (Festuca arundinacea Schreb.) is an important turfgrass widely used for home lawns and on golf courses. The most serious and frequently occurring disease of tall fescue is brown patch, caused by a basidiomycete fungus, Rhizoctonia solani. To breed brown patch resistant tall fescue cultivars is a challenge to the breeders. This research used two transgenic approaches to introduce transgenes into tall fescue and obtained resistance to brown patch disease: expression of a shrimp Penaeidin 4-1 (Pen4-1) gene, or by Host Induced Gene Silencing (HIGS). Penaeidin 4-1 is a peptide of 47 amino acid residues and belongs to a large group of antimicrobial peptides (AMPs) produced by animals and plants as part of their innate immunity to defend themselves against a wide range of microbes. Expression of the Pen4-1 gene in creeping bentgrass confers resistance to brown patch caused by R. solani subgroup AG2-2(IIIB) and dollar spot caused by Sclerotinia homoeocarpa1. However, AG2- 2(IIIB) does not infect tall fescue. The subgroup that causes brown patch in tall fescue is AG1-IA. Host Induced Gene Silencing, or HIGS, is a relatively new technology for resistance to pest, including fungi, in plants. Successful resistance to several plant fungal diseases by HIGS has been reported2. HIGS expresses, in host plants, RNAi constructs of the essential genes of a pathogen. The siRNAs somehow (mechanisms remains to be elucidated) could penetrate into fungal cells, confer post-transcriptional silencing to those essential genes and thus suppress fungal growth.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhou, B, A. Bailey, C. L. Niblett, H. Luo, and R. Qu. 2016. Introduced brown patch disease resistance in transgenic tall fescue. Eur. Turfgrass Soc. Conf. Proc. p. 7-8.
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    Last checked: 08/12/2020
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