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Sympatric ascochyta complex of wild Cicer judaicum and domesticated chickpea
Year:
2007
Source of publication :
Plant Pathology
Authors :
Frenkel, Omer
;
.
Sherman, Amir
;
.
Shtienberg, Dan
;
.
Volume :
56
Co-Authors:
Frenkel, O., Levi Eshkol School of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Shtienberg, D., Department of Plant Pathology and Weed Research, Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Abbo, S., Levi Eshkol School of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Sherman, A., Genomics Department, Volcani Center, Agricultural Research Organization, Bet Dagan, 50250, Israel
Facilitators :
From page:
464
To page:
471
(
Total pages:
8
)
Abstract:
The aim of this study was to isolate, identify and characterize ascochyta blight pathogens from Cicer judaicum, a wild annual Cicer species which grows in Israel and other Mediterranean countries in sympatric distribution with legume crops, and determine their virulence and aggressiveness to other wild and domesticated legumes. Native C. judaicum plants exhibited symptoms resembling ascochyta diseases of grain legume crops. Two distinct pathogens were isolated and identified as Phoma pinodella and Didymella rabiei using morphological and molecular tools; their infectivity was verified using Koch's postulates. The virulence of these pathogens was examined on 13 legume species, of which P. pinodella was virulent to Pisum sativum, P. fulvum, C. judaicum, C. arietinum, C. reticulatum, C. pinnatifidum and C. bijugum. Didymella rabiei infected all these Cicer species, but not the other legume species tested. Aggressiveness of the pathogens was tested on wild and domesticated chickpea and pea. Didymella rabiei isolated from C. judaicum had significantly higher (P < 0.001) aggressiveness than P. pinodella from C. judaicum on both wild and domesticated chickpea. Disease severity on the former species ranged from 62.5% to 70% and on the latter from 41% to 56%. Phoma pinodella isolates from C. judaicum were more aggressive on C. arietinum and P. sativum than on C. judaicum and P. fulvum. Results of the current study suggest that C. judaicum may serve as an alternative host to ascochyta pathogens that endanger chickpea and possibly other crops and wild species growing in close proximity. © 2006 The Authors.
Note:
Related Files :
Ascochyta
Cicer
Cicer arietinum
Cicer bijugum
Israel
Phoma pinodella
Pisum sativum
sympatry
virulence
Show More
Related Content
More details
DOI :
10.1111/j.1365-3059.2006.01552.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19308
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:27
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Scientific Publication
Sympatric ascochyta complex of wild Cicer judaicum and domesticated chickpea
56
Frenkel, O., Levi Eshkol School of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Shtienberg, D., Department of Plant Pathology and Weed Research, Volcani Center, Agricultural Research Organization, Bet-Dagan 50250, Israel
Abbo, S., Levi Eshkol School of Agriculture, Hebrew University of Jerusalem, Rehovot 76100, Israel
Sherman, A., Genomics Department, Volcani Center, Agricultural Research Organization, Bet Dagan, 50250, Israel
Sympatric ascochyta complex of wild Cicer judaicum and domesticated chickpea
The aim of this study was to isolate, identify and characterize ascochyta blight pathogens from Cicer judaicum, a wild annual Cicer species which grows in Israel and other Mediterranean countries in sympatric distribution with legume crops, and determine their virulence and aggressiveness to other wild and domesticated legumes. Native C. judaicum plants exhibited symptoms resembling ascochyta diseases of grain legume crops. Two distinct pathogens were isolated and identified as Phoma pinodella and Didymella rabiei using morphological and molecular tools; their infectivity was verified using Koch's postulates. The virulence of these pathogens was examined on 13 legume species, of which P. pinodella was virulent to Pisum sativum, P. fulvum, C. judaicum, C. arietinum, C. reticulatum, C. pinnatifidum and C. bijugum. Didymella rabiei infected all these Cicer species, but not the other legume species tested. Aggressiveness of the pathogens was tested on wild and domesticated chickpea and pea. Didymella rabiei isolated from C. judaicum had significantly higher (P < 0.001) aggressiveness than P. pinodella from C. judaicum on both wild and domesticated chickpea. Disease severity on the former species ranged from 62.5% to 70% and on the latter from 41% to 56%. Phoma pinodella isolates from C. judaicum were more aggressive on C. arietinum and P. sativum than on C. judaicum and P. fulvum. Results of the current study suggest that C. judaicum may serve as an alternative host to ascochyta pathogens that endanger chickpea and possibly other crops and wild species growing in close proximity. © 2006 The Authors.
Scientific Publication
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