Plant Pathology: Recent submissions
Now showing items 81-100 of 102
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Characteristics and Host Range of a Novel Fusarium Species Causing Yellowing Decline of Sugarbeet
(North Dakota State University, 2013)In 2008, a novel and distinct Fusarium species was reported in west central Minnesota causing early-season yellowing and severe decline of sugarbeet. This study was conducted to (i) establish optimum conditions for fungal ... -
Identification and Characterization of Pythium Spp. on Glycine Max (Soybean) in North Dakota
(North Dakota State University, 2013)The Oomycete Pythium comprises one of the most important groups of seedling pathogens affecting soybean, causing both pre- and post-emergence damping off. Numerous species of Pythium have been identified and found to be ... -
Biology and Development of Two Wilt Fungi of Potato: Verticilliam Dahliae and Colletotrichum Coccodes
(North Dakota State University, 2012)The demand for high quality tubers for the frozen processing industry has exerted increased pressure on producers to control diseases that can compromise tuber quality, including, C. coccodes and V. dahliae. Infection of ... -
Characterization of Fusarium Head Blight Resistance in Wheat
(North Dakota State University, 2017)Fusarium head blight (FHB) is a devastating fungal disease threatening wheat production worldwide. Utilization of resistant wheat cultivars is generally considered as the most effective, economic and environmental friendly ... -
Movement and Accumulation of Candidatus Liberibacter Solanacearum in Potato Plants
(North Dakota State University, 2012)A new disease affecting potatoes was first detected in Mexico in 1993. Affected plants had aerial symptoms similar to those caused by potato purple top and psyllid yellows, but tubers had internal brown discoloration when ... -
Identification of Multiple Virulence Loci in Pyrenophora Teres F. Teres Associated with Net Form Net Blotch in Barley
(North Dakota State University, 2013)The necrotrophic fungal pathogen Pyrenophora teres f. teres causes the foliar disease net form net blotch (NFNB) on barley (Hordeum vulgare). To investigate the genetics of virulence in the barley- P. teres f. teres ... -
Inoculation Techniques, Development of Brassica Napus Breeding Lines and Identification of Markers Associated with Resistance to Sclerotinia Sclerotiorum (Lib.) De Bary
(North Dakota State University, 2012)Sclerotinia stem rot caused by Sclerotinia sclerotiorum (Lib.) de Bary is an economic disease affecting canola (Brassica napus L). Since expression of sclerotinia stem rot symptoms shows much variability and the trait is ... -
Characterization of Cytochrome B from European Field Isolates of Cercospora Beticola with Quinone Outside Inhibitor Resistance
(North Dakota State University, 2012)Cercospora leaf spot (CLS), caused by the fungal pathogen Cercospora beticola, is the most important foliar disease of sugar beet worldwide. Control strategies for CLS rely heavily on fungicides including quinone outside ... -
Studies on the Biology of Soybean Cyst Nematode
(North Dakota State University, 2011)Soybean cyst nematode (SCN), Heterodera glycines, is a threat to soybean production in North Dakota. Studies on the biology of SCN were conducted to improve my understanding and management of this plant parasitic nematode. ... -
Genomics and Management of Fusarium Root Rot of Field Peas
(North Dakota State University, 2012)Dry Pea or field pea (Pisum sativum L.) is an important cool season legume crop grown in the United States. Field peas are vulnerable to many diseases of which, soil borne diseases including wilt and root rot are of major ... -
Identification of Quantitative Trait Loci (QTL) Associated with Resistance to Initial Infection of Fusarium Head Blight in Spring Wheat
(North Dakota State University, 2017)Video summarizing a Ph.D. dissertation for a non-specialist audience. -
Genomic Mapping of Leaf Rust and Stem Rust Resistance Loci in Durum Wheat and Use of RAD-Genotype by Sequencing for the Study of Population Genetics in Puccinia Titicina
(North Dakota State University, 2016)Leaf rust, caused by Puccinia triticina Erikss. (Pt), and stem rust, caused by Puccinia graminis f. sp. tritici Erikss. and E. Henn (Pgt), are among the most devastating diseases of durum wheat (Triticum turgidum L. var. ... -
Genetic and Molecular Characterization of Host Resistance and Susceptibility to Pyrenophora Teres F. Teres in Hordeum vulgare
(North Dakota State University, 2016)Pyrenophora teres f. teres, a necrotrophic fungal pathogen and causal agent of net form net blotch (NFNB), is an economically important pathogen of barley (Hordeum vulgare) and has potential to cause significant yield ... -
Towards Identifying the Physical and Molecular Components Involved in Resistance to Leaf Rust Pathogen Puccinia Triticina in Wheat and Barley
(North Dakota State University, 2016)Genetic resistance is the preferred method to reduce yield losses caused by many diseases including wheat leaf rust. However, in many cases host resistance seems to be short-lived. For decades, scientists have tried and ... -
Effectors and Effector Delivery in Magnaporthe Oryzae
(North Dakota State University, 2016)Rice blast, caused by the fungus Magnaporthe oryzae, is one of the most destructive rice diseases. All plant parts can be affected including leaves, leaf collars, necks, panicles, pedicels, and seeds. The disease symptoms ... -
Development of Management Tools for Sunflower Downy Mildew (Plasmopara Halstedii) and Rust (Puccinia Helianthi)
(North Dakota State University, 2016)Downy mildew (Plasmopara halstedii) and rust (Puccinia helianthi) are two economically important diseases of sunflower (Helianthus annuus) in North Dakota. Both diseases are capable of causing significant reductions in ... -
Identification and Functional Characterization of Necrotrophic Effectors in Parastagonospora Nodorum
(North Dakota State University, 2015)The necrotrophic fungus Parastagonospora nodorum (teleomorph; Phaeosphaeria nodorum), is the causal agent of Septoria nodorum blotch (SNB) on common wheat (Triticum aestivum L.) and durum wheat (Triticum turgidum L.). ... -
Genetic and Molecular Characterization of Genes Involved in Barley-Cochliobolus Sativus Interaction
(North Dakota State University, 2015)Spot blotch caused by ascomycete fungus Cochliobolus sativus (Ito & Kurib.) Drechs. ex Dastur. [anamorph: Bipolaris sorokiniana (Sacc.) Shoem.] is one of the most common and economically important diseases on barley. To ... -
Studies on the Development and Management of Powdery Scab and Root Gall Formation Caused by Spongospora Subterranea on Potato (Solanum Tuberosum L.)
(North Dakota State University, 2015)The biotroph protozoan Spongospora subterranea causes root gall formation and powdery scab on potato. Symptoms on tubers affect directly the quality and marketability of the harvested product while infection in roots are ... -
Characterizing Pyrenophora Teres F. Maculata in the Northern United States and Impact of Spot Form Net Blotch on Yield of Barley
(North Dakota State University, 2015)Pyrenophora teres f. maculata causes spot form net blotch (SFNB) on barley and was recently documented in North Dakota. The impact of SFNB on barley, the genetic diversity of the pathogen, and virulence structure are unknown ...