נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Variation in pathogenicity and aggressiveness of Erysiphe necator from different vitis spp. and geographic origins in the eastern United States
Year:
2010
Source of publication :
Phytopathology
Authors :
Frenkel, Omer
;
.
Volume :
100
Co-Authors:
Frenkel, O., Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States
Brewer, M.T., Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States
Milgroom, M.G., Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States
Facilitators :
From page:
1185
To page:
1193
(
Total pages:
9
)
Abstract:
Eastern North America is considered the center of diversity for many Vitis spp. and for the grape powdery mildew pathogen, Erysiphe necator. However, little is known about populations of E. necator from wild Vitis spp. We determined the phenotypic variation in pathogenicity and aggressiveness of E. necator among isolates from wild and domesticated Vitis spp. from diverse geographic regions in the eastern United States. To test pathogenicity, we inoculated 38 E. necator isolates on three wild Vitis spp., two commercially grown hybrids and the European wine grape, Vitis vinifera. V. rotundifolia (muscadine grape) was the only host species on which complete host specialization was evident; it was only susceptible to isolates collected from V. rotundifolia. All isolates, regardless of source host, were pathogenic on the other Vitis spp. We found no differences in components of aggressiveness latent period and lesion size among isolates from different source hosts when inoculated on V. vinifera, which is highly susceptible to powdery mildew. However significant variation was evident among isolates on the more resistant V. labruscana 'Niagara'. Isolates from the wild species V. aestivalis were the most aggressive, whereas isolates from V. vinifera were not more aggressive than isolates from other source hosts. Greater aggressiveness was also detected among isolates from the southeastern United States compared with isolates from the northeastern United States. © 2010 The American Phytopathological Society.
Note:
Related Files :
Erysiphe necator
grape
Microbiology
Necator
Plant Disease
Plant Diseases
virulence
Vitaceae
Vitis
Show More
Related Content
More details
DOI :
10.1094/PHYTO-01-10-0023
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
18961
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:25
You may also be interested in
Scientific Publication
Variation in pathogenicity and aggressiveness of Erysiphe necator from different vitis spp. and geographic origins in the eastern United States
100
Frenkel, O., Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States
Brewer, M.T., Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States
Milgroom, M.G., Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States
Variation in pathogenicity and aggressiveness of Erysiphe necator from different vitis spp. and geographic origins in the eastern United States
Eastern North America is considered the center of diversity for many Vitis spp. and for the grape powdery mildew pathogen, Erysiphe necator. However, little is known about populations of E. necator from wild Vitis spp. We determined the phenotypic variation in pathogenicity and aggressiveness of E. necator among isolates from wild and domesticated Vitis spp. from diverse geographic regions in the eastern United States. To test pathogenicity, we inoculated 38 E. necator isolates on three wild Vitis spp., two commercially grown hybrids and the European wine grape, Vitis vinifera. V. rotundifolia (muscadine grape) was the only host species on which complete host specialization was evident; it was only susceptible to isolates collected from V. rotundifolia. All isolates, regardless of source host, were pathogenic on the other Vitis spp. We found no differences in components of aggressiveness latent period and lesion size among isolates from different source hosts when inoculated on V. vinifera, which is highly susceptible to powdery mildew. However significant variation was evident among isolates on the more resistant V. labruscana 'Niagara'. Isolates from the wild species V. aestivalis were the most aggressive, whereas isolates from V. vinifera were not more aggressive than isolates from other source hosts. Greater aggressiveness was also detected among isolates from the southeastern United States compared with isolates from the northeastern United States. © 2010 The American Phytopathological Society.
Scientific Publication
You may also be interested in