Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Phakopsora pachyrhizi"”.
-
Melanin-independent accumulation of turgor pressure in appressoria of Phakopsora pachyrhizi
… and compromises the infection process. In Phakopsora pachyrhizi, the soybean rust pathogen, the appressoria are hyaline. Our objective was to ensure the absence of a melanin layer specifically between the appressorial cell wall and plasma membrane, as well as to determine the turgor …
-
Phakopsora pachyrhizi growth in tissue of leaves from resistant and susceptible soybean germplasm
Soybean rust, caused by Phakopsora pachyrhizi, is one of the most potentially devastating foliar diseases of soybean, particularly in areas with mild winters. Tan lesions with two or more sporulating uredinia indicate a susceptible reaction. Resistance to soybean rust is characterized by the …
-
Detection of viable urediniospores, morphological characterization in resistant and susceptible genotypes, and germ tube anastomosis of Phakopsora pachyrhizi
Soybean rust, caused by Phakopsora pachyrhizi, is a major foliar disease of soybean affecting soybean yields in many soybean-growing areas throughout the world. After the reports of its first occurrence in Brazil in 2001 and the continental United States of America in 2004, research on the disease …
-
Evaluation of resistance in Glycine max to Fusarium virguliforme and in perennial Glycine species to Phakopsora pachyrhizi and Heterodera glycines
… by fungal pathogens Fusarium virguliforme and Phakopsora pachyrhizi and the plant-parasitic nematode Heterodera glycines, respectively, are three major yield-limiting problems. Soybean cultivars have a narrow genetic base due to bottlenecks in modern cultivar development. Lack of partially …
-
Characterizing soybean rust resistance in Glycine tomentella and effect of temperature and a fungicide on Phakopsora pachyrhizi uredinia production of urediniospores
Soybean rust (Phakopsora pachyrhizi H. Syd. & Syd.) causes significant economic losses in yield in many soybean-growing areas worldwide. Since most if not all commercial soybean cultivars are susceptible, research continues to search and characterize resistance. Perennial Glycine species have many …
-
Vias de sinalização mediadas por ácido salicílico e metil-jasmonato e papel de GmbZIP89 em resposta à infecção por Phakopsora pachyrhizi em genótipos contrastantes de soja
… expresso durante a infecção de P. pachyrhizi em soja, o fungo biotrófico causador da ferrugem asiática. Esse fator possui alta similidaridade com G/HBF-1 responsivo à estresse bióticos e GmbZIP105 responsivo à P. pachyrhizi. Isso sugere que GmbZIP89 possa estar envolvido na resposta …
-
Rust and Purple Seed Stain of Soybeans
Rust of soybean (Glycine max), caused by Phakopsora pachyrhizi, is the most serious soybean disease in southeast Asia and Australia and is a potential threat in other soybean growing areas. Yield reductions from 30 to 50% are common. Twelve synonyms of P. pachyrhizi were reported on 87 hosts.
-
Genetic characterization of a dominant susceptible Rpp1 allele and analysis of quantitative resistance to Asian soybean rust
… soybean rust (ASR), caused by fungal pathogen Phakopsora pachyrhizi, is a yield-threatening disease in soybean growing countries (Hartman et al. 2012; Godoy et al. 2016). The yield loss can reach as high as 80% if the conditions are conducive, and no control measures are taken (Yorinori et al. …
-
Economic Aspects of Crop Pest Management and Monarch Conservation
… of a monitoring network for soybean rust (Phakopsora pachyrhizi). It shows that a network of 400 sentinel plots can maximize the expected profit of soybean farmers provided more plots are placed in the Corn Belt where the risk of soybean rust infection is lower, but where much more soybean …
-
Characterizing soybean rust resistance within populations of Glycine tomentella and the inheritance and characterization of soybean aphid resistance in PI 587663, PI 587677, PI 587685, and PI 594592
Soybean rust, caused by Phakopsora pachyrhizi Syd., is known to cause significant damage to soybean yields in many production areas worldwide. Most soybean cultivars are susceptible to the fungus and even though sources of resistance have been discovered within the USDA soybean germplasm bank, …
-
Improvement of soybean breeding via high throughput phenotyping and disease resistance
… Asian soybean rust (ASR), caused by the fungus Phakopsora pachyrhizi Syd. & P. Syd, is a serious disease in major soybean [Glycine max (L.) Merr.] production countries worldwide and causes yield losses up to 75%. Defining the exact chromosomal position of ASR resistance genes is critical for …
-
Genetic characterization of Rpp1-mediated Asian soybean rust resistance using in-depth transcriptomic and genomic analyses
Asian Soybean Rust, caused by the fungus Phakopsora pachyrhizi, is one of the most destructive diseases affecting soybean yield worldwide. Rpp1 is one of the six known resistant loci that can confer qualitative resistance in soybean resulting in either red-brown lesions with no or limited …