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Impaired purine biosynthesis affects pathogenicity of Fusarium oxysporum f. sp. melonis
Year:
2005
Authors :
Denisov, Youlia
;
.
Freeman, Stanley
;
.
Volume :
112
Co-Authors:
Denisov, Y., Department of Plant Pathology and Microbiology, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, 76100, Rehovot, Israel, Department of Plant Pathology, ARO, Volcani Center, 50250 Bet Dagan, Israel
Yarden, O., Department of Plant Pathology and Microbiology, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, 76100, Rehovot, Israel
Freeman, S., Department of Plant Pathology, ARO, Volcani Center, 50250 Bet Dagan, Israel
Facilitators :
From page:
293
To page:
297
(
Total pages:
5
)
Abstract:
The vascular wilt pathogen Fusarium oxysporum f. sp. melonis causes worldwide yield losses of muskmelon. In this study, we characterized a UV-induced non-pathogenic mutant (strain 4/4) of F. oxysporum f. sp. melonis, previously identified as a potential biological control agent. During comparative analysis of vegetative growth parameters using different carbon sources, mutant strain 4/4 showed a delay in development and secretion of extracellular enzymes, compared to the wild type strain. Amendments of the growth medium with yeast extract, adenine or hypoxanthine, but not guanine, complemented the growth defect of strain 4/4, as well as secretion and partial activity of cellulases and endopolygalacturonases, indicating that the strain is an adenine auxotroph. Incubation of strain 4/4 conidia in adenine solution, prior to inoculation of muskmelon plants, partially restored pathogenicity to the mutant strain. © Springer 2005.
Note:
Related Files :
Cucumis melo
Fusarium
Fusarium oxysporum f. sp. melonis
Fusarium wilt
pathogenicity
UV-induced mutant
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More details
DOI :
10.1007/s10658-005-2771-x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
31691
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:04
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Scientific Publication
Impaired purine biosynthesis affects pathogenicity of Fusarium oxysporum f. sp. melonis
112
Denisov, Y., Department of Plant Pathology and Microbiology, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, 76100, Rehovot, Israel, Department of Plant Pathology, ARO, Volcani Center, 50250 Bet Dagan, Israel
Yarden, O., Department of Plant Pathology and Microbiology, Faculty of Agricultural, Food and Environmental Quality Sciences, Hebrew University of Jerusalem, 76100, Rehovot, Israel
Freeman, S., Department of Plant Pathology, ARO, Volcani Center, 50250 Bet Dagan, Israel
Impaired purine biosynthesis affects pathogenicity of Fusarium oxysporum f. sp. melonis
The vascular wilt pathogen Fusarium oxysporum f. sp. melonis causes worldwide yield losses of muskmelon. In this study, we characterized a UV-induced non-pathogenic mutant (strain 4/4) of F. oxysporum f. sp. melonis, previously identified as a potential biological control agent. During comparative analysis of vegetative growth parameters using different carbon sources, mutant strain 4/4 showed a delay in development and secretion of extracellular enzymes, compared to the wild type strain. Amendments of the growth medium with yeast extract, adenine or hypoxanthine, but not guanine, complemented the growth defect of strain 4/4, as well as secretion and partial activity of cellulases and endopolygalacturonases, indicating that the strain is an adenine auxotroph. Incubation of strain 4/4 conidia in adenine solution, prior to inoculation of muskmelon plants, partially restored pathogenicity to the mutant strain. © Springer 2005.
Scientific Publication
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