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Showing 1 to 20 of 25 for “"Phytophthora sojae"”.
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Glucan synthase of Phytophthora sojae
… for glucan synthase activity was done using Phytophthora cinnamomi (Wang and Bartnicki-Garcia, 1976, Selitrennikoff 1995). In this work, the glucan synthase of the oomycete Phytophthora sojae was characterised, solubilized, and partially purified, and the cDNA for a protein co-purifying with …
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Interaction Between Soybean and Phytophthora Sojae
Phytophthora sojae is a major pathogen of soybean, causing an estimated yield loss of 560,300 metric tons in 1994 in the United States. Thirteen resistance alleles at seven loci have been identified in soybean that control race-specific resistance. There are currently 53 races of P. sojae. The …
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Inheritance of virulence in the root rot pathogen Phytophthora sojae
The oomycete Phytophthora sojae causes stem and root rot of soybean plants. The interaction of pathogen avirulence (Avr) and host resistance (R)-genes determine the disease outcome. The Avr3a mRNA transcript level is variable among P. sojae strains and determines virulence towards the R-gene Rps3a. …
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Root and Stem Rot of Soybean Caused by Phytophthora Sojae N. Sp
Made available in DSpace on 2014-12-05T20:30:06Z (GMT). No. of bitstreams: 1 0023343.pdf: 3610398 bytes, checksum: 7cad858bc1af6124f2c0ae0830c3bd32 (MD5) Previous issue date: 1957
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Nuclear Localization of Proteins and Genome Editing in the Oomycete Phytophthora sojae
… Many oomycete species, mainly in the genera Phytophthora, Pythium and downy mildews, are devastating plant pathogens that cause multibillion-dollar losses to agriculture annually in the world. Some oomycetes are also animal pathogens, causing severe losses in aquaculture and fisheries, and …
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Mapping and Characterization of Phytophthora sojae and Soybean Mosaic Virus Resistance in Soybean
Phytophthora sojae, the causal organism of stem and root rot, and <i>Soybean mosaic virus</i> (SMV) cause two of the most highly destructive diseases of soybean (<i>Glycine max</i> L. Merr). <i>P. sojae</i> can be managed either through deployment of race-specific resistance or through quantitative …
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Identification, Validation, and Mapping of Phytophthora sojae and Soybean Mosaic Virus Resistance Genes in Soybean
… in soybean. In particular, we are working on the Phytophthora soja (P. sojae) and Soybean Mosaic Virus (SMV) systems. For each of these diseases, we are working to develop superior soybean germplasm that is resistant to the devastating economic impacts of pathogens. The majority of this research …
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Transcriptional profiling of potential regulatory factors modulating defense mechanisms in soybean during Phytophthora sojae infection
… max L. Merr). Root rot of soybean caused by Phytophthora sojae ranks among the most damaging soybean diseases. Quantitative resistance has proven durable in soybean against P. sojae, however the molecular mechanisms underlying this form of resistance are still unknown. The objective of this …
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Estudo de associação genômica e análise de redes gênicas para resistência de soja à Phytophthora sojae
… associados à resistência completa de soja à P. sojae; identificar genes localizados próximos a marcadores candidatos a resistência parcial e completa a doença e realizar uma análise post GWAS através da montagem de uma rede gene – fator de transcrição. Um total de 169 cultivares de soja foram …
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Phytophthora Sojae Infecting Soybean: Pathotype Diversity, New Sources of Resistance and Interaction with the Soybean Cyst Nematode
<p>Phytophthora root and stem rot, caused by <em>Phytophthora sojae</em> Kaufmann and Gerdemann, is an important disease of soybean (<em>Glycine max</em> L.) in South Dakota. To gain a better understanding of the importance of P. sojae in South Dakota, specifically pathotype diversity, …
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Structural basis for interactions of the Phytophthora sojae RxLR effector Avh5 with phosphatidylinositol 3-phosphate and for host cell entry
Oomycetes, such as Phytophthora sojae, are plant pathogens that employ protein effectors that enter host cells to facilitate infection. Plants may overcome infection by recognizing pathogen effectors via intracellular receptors (R proteins) that form part of their defense system. Entry of some …
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Agronomic and molecular marker mapping of brown stem rot, phytophthora root rot, and powdery mildew resistance in soybean
… gregata (Allington and Chamberlain) W. Gams, and phytophthora root rot, caused by Phytophthora sojae Kaufmann & Gerdemann, are major diseases of soybean in Illinois. A gene for resistance to powdery mildew, caused by Microsphaera diffusa Cke. & Pk., has also been found to be linked to a gene for …
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An Interdisciplinary Approach: Computational Sequence Motif Search and Prediction of Protein Function with Experimental Validation
… cells. A biotrophic oomycete plant pathogen, Phytophthora sojae harbors a superfamily of effector genes whose protein products enter the cells of the host, soybean. Many of the effectors contain an RXLR-dEER motif in their N-terminus. More than 400 members belonging to this family have been …
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Identification and functional characterization of RXLR effector proteins that are conserved between downy mildew pathogens and Phytophthora species
… gene, PsAvh163, from the soybean pathogen Phytophthora sojae. HaRxL96 and PsAvh163 are induced during early stages of infection and carry a functional RXLR motif that is sufficient for protein uptake into plant cells. Both effectors can suppress or activate immune responses in soybean, …
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How Oomycete and Fungal Effectors Enter Host Cells and Promote Infection
The genus Phytophthora contains a large number of species that are known plant pathogens of a variety of important crops. Phytophthora sojae, a hemibiotroph, causes approximately 1-2 billion dollars (US) of lost soybean world-wide each year. P. infestans, the causative agent of the Irish potato …
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Evaluation of Lysobacter enzymogenes C3 for control of soybean fungal diseases
… Fusarium virguliforme, Macrophomina phaseolina, Phytophthora sojae, Pythium sylvaticum, Rhizoctonia solani, Septoria glycines, and Sclerotinia sclerotiorum. Our experiments confirmed previous reports that antagonism arises from a broad spectrum of inhibition activities. Next, we evaluated LeC3 as …
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Molecular Analysis of Oomycete Pathogens to Identify and Translate Novel Resistance Mechanisms to Crops
… new and durable resistance (R) genes against P. sojae in soybean germplasm. We developed a system to screen soybean germplasm for genes that recognize core Phytophthora sojae RXLR effectors that are conserved within the pathogen species and essential for virulence. R genes that recognize these …
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Evaluation of fertile lines derived from the hybridization of Glycine max and G. tomentella
… two alleles among 34 lines with resistance to Phytophthora sojae. In tests comparing our resistant lines with known sources of resistance to Phytophthora root rot, one allele performed similarly to the resistance gene, Rps1k. An allelism test confirmed that this allele is allelic or tightly …
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Understanding Plant Pathosystems in Wild Relatives of Cultivated Crop Plants
… genes (R genes) but chemical controls as well. Phytophthora sojae (P. sojae), the causal agent of Phytophthora root and stem rot disease, reduces soybean harvests worldwide. We developed an approach to screen for new R genes that recognize core effectors from P. sojae. We expect R genes …
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Elucidating essential roles of oomycee effector proteins in immune suppression and in targeting hormonal pathways in the host plant
… of genome sequences from oomycete pathogens Phytophthora sojae, P. ramorum, P. infestans and Hyaloperonospora arabidopsidis (Hpa) have led to the identification of a large number of candidate effector genes. These effector genes have characteristic motifs (signal peptide, RxLR and dEER) that …
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