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פותח על ידי קלירמאש פתרונות בע"מ -
Insight into late wilting disease of cucumber demonstrates the complexity of the phenomenon in fluctuating environments
Year:
2019
Source of publication :
Plant Disease
Authors :
אלעד, יגאל
;
.
דומברובסקי, אביב
;
.
פילוסוף, עמית
;
.
פרנקל, עומר
;
.
Volume :
Co-Authors:

Amnon Koren - Hishtil Nurseries, Nehalim, Israel

Facilitators :
From page:
0
To page:
0
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Total pages:
1
)
Abstract:

ome diseases are caused by coinfection of several pathogens in the same plant. However, studies on the complexity of these coinfection events under different environmental conditions are scarce. Our ongoing research involves late wilting disease of cucumber caused by coinfection of Cucumber green mottle mosaic virus (CGMMV) and Pythium spp. We specifically investigated the role of various temperatures (18, 25, 32°C) on the coinfection by CGMMV and two predominant Pythium species occurring in cucumber greenhouses under Middle Eastern climatic conditions. During the summer months, Pythium aphanidermatum was most common, whereas P. spinosum predominated during the winter–spring period. P. aphanidermatum preferred higher temperatures while P. spinosum preferred low temperatures and caused very low levels of disease at 32°C when the 6-day-old seedlings were infected with P. spinosum alone. Nevertheless, after applying a later coinfection with CGMMV on the 14-day-old plants, a synergistic effect was detected for both Pythium species at optimal and suboptimal temperatures, with P. spinosum causing high mortality incidence even at 32°C. The symptoms caused by CGMMV infection appeared earlier as the temperature increased. However, within each temperature, no significant influence of the combined infection was detected. Our results demonstrate the complexity of coinfection in changing environmental conditions and indicate its involvement in disease development and severity as compared with infection by each of the pathogens alone.

Note:
Related Files :
epidemiology
greenhouse
Soilborne pathogens
Tobamovirus
Tobamoviruses
vegetable
עוד תגיות
תוכן קשור
More details
DOI :
https://doi.org/10.1094/PDIS-12-18-2141-RE
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
43832
Last updated date:
02/03/2022 17:27
Creation date:
10/09/2019 11:06
Scientific Publication
Insight into late wilting disease of cucumber demonstrates the complexity of the phenomenon in fluctuating environments

Amnon Koren - Hishtil Nurseries, Nehalim, Israel

Insight into late wilting disease of cucumber demonstrates the complexity of the phenomenon in fluctuating environments

ome diseases are caused by coinfection of several pathogens in the same plant. However, studies on the complexity of these coinfection events under different environmental conditions are scarce. Our ongoing research involves late wilting disease of cucumber caused by coinfection of Cucumber green mottle mosaic virus (CGMMV) and Pythium spp. We specifically investigated the role of various temperatures (18, 25, 32°C) on the coinfection by CGMMV and two predominant Pythium species occurring in cucumber greenhouses under Middle Eastern climatic conditions. During the summer months, Pythium aphanidermatum was most common, whereas P. spinosum predominated during the winter–spring period. P. aphanidermatum preferred higher temperatures while P. spinosum preferred low temperatures and caused very low levels of disease at 32°C when the 6-day-old seedlings were infected with P. spinosum alone. Nevertheless, after applying a later coinfection with CGMMV on the 14-day-old plants, a synergistic effect was detected for both Pythium species at optimal and suboptimal temperatures, with P. spinosum causing high mortality incidence even at 32°C. The symptoms caused by CGMMV infection appeared earlier as the temperature increased. However, within each temperature, no significant influence of the combined infection was detected. Our results demonstrate the complexity of coinfection in changing environmental conditions and indicate its involvement in disease development and severity as compared with infection by each of the pathogens alone.

Scientific Publication
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