Pub Date : 1998-06-01DOI: 10.1080/07060669809500419
W. Bushnell, D. Somers, R. W. Giroux, L. Szabo, R. Zeyen
{"title":"Genetic engineering of disease resistance in cereals","authors":"W. Bushnell, D. Somers, R. W. Giroux, L. Szabo, R. Zeyen","doi":"10.1080/07060669809500419","DOIUrl":"https://doi.org/10.1080/07060669809500419","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82171713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-06-01DOI: 10.1080/07060669809500427
R. Deyoung, R. Copeman, R. Hunt
{"title":"Two strains in the genus Erwinia cause galls on Douglas-fir in southwestern British Columbia","authors":"R. Deyoung, R. Copeman, R. Hunt","doi":"10.1080/07060669809500427","DOIUrl":"https://doi.org/10.1080/07060669809500427","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87730544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-06-01DOI: 10.1080/07060669809500425
A. Kowalska, R. Niks
{"title":"Quantitative resistance of flax to flax rust (Melampsora lini).","authors":"A. Kowalska, R. Niks","doi":"10.1080/07060669809500425","DOIUrl":"https://doi.org/10.1080/07060669809500425","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83618816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-06-01DOI: 10.1080/07060669809500426
A. Xue, T. Warkentin, B. Gossen, P. A. Burnett, A. Vandenberg, K. Rashid
{"title":"Pathogenic variation of western Canadian isolates of Mycosphaerella pinodes on selected Pisum genotypes","authors":"A. Xue, T. Warkentin, B. Gossen, P. A. Burnett, A. Vandenberg, K. Rashid","doi":"10.1080/07060669809500426","DOIUrl":"https://doi.org/10.1080/07060669809500426","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91207062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-06-01DOI: 10.1080/07060669809500422
R. Peters, H. W. Platt, R. Hall
Five substrates (rye, corn, pea, lima bean, and pea bean) were assessed for their ability to sustain the viability of two isolates of Phytophthora infestans in liquid culture. One isolate belonged to the US-1 genotype (A1 mating type) and the other to the US-8 genotype (A2 mating type). Media based on corn and rye were consistently the best for maintaining the viability of both isolates over time. The survival of the isolate of the US-1 genotype on all five media declined dramatically after 12 months in storage at room temperature (21 degrees C). Recovery of the isolate of the US-8 genotype remained possible after 30 months of storage at room temperature from corn, rye, and pea bean media but not from lima bean or pea media. Isolates of both genotypes grown on a rye kernel medium and kept at 4 degrees C were still recovered after 30 months in culture, although the percentage of successful transfers (mean survival) had declined. According to linear regression analysis, the US-8 isolate grown in sterile culture at 21 degrees C showed better survival over time than the US-1 isolate. To maintain isolates of P. infestans for 1 to 2.5 years without transfer, the use of liquid media based on corn or rye is recommended.
{"title":"Long-term survival of Phytophthora infestans in liquid media prepared from autoclaved seeds","authors":"R. Peters, H. W. Platt, R. Hall","doi":"10.1080/07060669809500422","DOIUrl":"https://doi.org/10.1080/07060669809500422","url":null,"abstract":"Five substrates (rye, corn, pea, lima bean, and pea bean) were assessed for their ability to sustain the viability of two isolates of Phytophthora infestans in liquid culture. One isolate belonged to the US-1 genotype (A1 mating type) and the other to the US-8 genotype (A2 mating type). Media based on corn and rye were consistently the best for maintaining the viability of both isolates over time. The survival of the isolate of the US-1 genotype on all five media declined dramatically after 12 months in storage at room temperature (21 degrees C). Recovery of the isolate of the US-8 genotype remained possible after 30 months of storage at room temperature from corn, rye, and pea bean media but not from lima bean or pea media. Isolates of both genotypes grown on a rye kernel medium and kept at 4 degrees C were still recovered after 30 months in culture, although the percentage of successful transfers (mean survival) had declined. According to linear regression analysis, the US-8 isolate grown in sterile culture at 21 degrees C showed better survival over time than the US-1 isolate. To maintain isolates of P. infestans for 1 to 2.5 years without transfer, the use of liquid media based on corn or rye is recommended.","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73446569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-06-01DOI: 10.1080/07060669809500421
J. Gilbert, S. Woods, A. Tekauz
{"title":"Relationship between environmental variables and the prevalence and isolation frequency of leaf-spotting pathogens in spring wheat.","authors":"J. Gilbert, S. Woods, A. Tekauz","doi":"10.1080/07060669809500421","DOIUrl":"https://doi.org/10.1080/07060669809500421","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77253412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-06-01DOI: 10.1080/07060669809500420
V. Higgins, Huogen Lu, T. Xing, A. Gelli, E. Blumwald
The gene-for-gene concept is central to most efforts to bioengineer plants for disease resistance. In the more than 50 years since Flor first proposed the gene-for-gene concept, it has served as an important focus for research on plant disease resistance. This presentation looks briefly at the "evolution" of our understanding of gene-for-gene resistance in relation to the prospects for bio-engineering. The Cladosporium fulvum-tomato interaction is used to illustrate how understanding the signal transduction pathway following interactions between the pathogen elicitor and a putative receptor may lead to new approaches to bioengineering disease resistant cultivars. In this context, recent data are reviewed, confirming that the oxidative burst seen in the defense response of tomato to C. fulvum has strong similarity to that of mammalian phagocytic neutrophil cells.
{"title":"The gene-for-gene concept and beyond: Interactions and signals","authors":"V. Higgins, Huogen Lu, T. Xing, A. Gelli, E. Blumwald","doi":"10.1080/07060669809500420","DOIUrl":"https://doi.org/10.1080/07060669809500420","url":null,"abstract":"The gene-for-gene concept is central to most efforts to bioengineer plants for disease resistance. In the more than 50 years since Flor first proposed the gene-for-gene concept, it has served as an important focus for research on plant disease resistance. This presentation looks briefly at the \"evolution\" of our understanding of gene-for-gene resistance in relation to the prospects for bio-engineering. The Cladosporium fulvum-tomato interaction is used to illustrate how understanding the signal transduction pathway following interactions between the pathogen elicitor and a putative receptor may lead to new approaches to bioengineering disease resistant cultivars. In this context, recent data are reviewed, confirming that the oxidative burst seen in the defense response of tomato to C. fulvum has strong similarity to that of mammalian phagocytic neutrophil cells.","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75862038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500435
P. Hildebrand, K. Mcrae
{"title":"Control of clubroot caused by Plasmodiophora brassicae with nonionic surfactants","authors":"P. Hildebrand, K. Mcrae","doi":"10.1080/07060669809500435","DOIUrl":"https://doi.org/10.1080/07060669809500435","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74215723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500445
A. Khadhair, L. Kawchuk, R. Taillon, G. Botar
{"title":"Detection and molecular characterization of an aster yellows phytoplasma in parsley","authors":"A. Khadhair, L. Kawchuk, R. Taillon, G. Botar","doi":"10.1080/07060669809500445","DOIUrl":"https://doi.org/10.1080/07060669809500445","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78248225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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