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Cross-infection of subtropical and temperate fruits by Colletotrichum species from various hosts
Year:
1996
Authors :
Freeman, Stanley
;
.
Shabi, Ezra
;
.
Volume :
49
Co-Authors:
Freeman, S., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Shabi, E., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
395
To page:
404
(
Total pages:
10
)
Abstract:
Forty-two isolates of Colletotrichum gloeosporioides from almond, apple, avocado, mango, pecan, and eight isolates of C. acutatum from apple, peach and pecan were compared by molecular analyses and a pathogenicity assay in order to determine genetic variability and host specificity. Polymerase chain reaction (PCR) amplification of genomic DNA using four different primers and HaeIII digestion patterns of genomic DNA (A + T-rich DNA) grouped the C. acutatum isolates separately from the C. gloeosporioides isolates. Based on arbitrarily primed PCR (ap-PCR), intraspecies similarity among the isolates of C. acutatum and C. gloeosporioides ranged from 78 to 93%, and from 0 to 38%, respectively. Similarity between the isolates of C. acutatum and C. gloeosporioides ranged from 0 to 26.5%. A + T-rich DNA grouped the C. acutatum isolates separately from those of C. gloeosporioides, corresponding to ap-PCR analyses. Artificial inoculations with nine representatives isolates on almond, apple, avocado, mango and nectarine fruit showed a variation in levels of infection. The C. gloeosporioides isolates from almond grew more slowly, causing significantly smaller lesions on all inoculated fruit than the other isolates. The C. acutatum isolates from apple and peach caused similar levels of infection on all fruit, but differed significantly from the C. gloeosporioides isolate from apple. Variation in lesion size was also observed with isolates of C. gloeosporioides from apple, avocado and mango for most fruit inoculations.
Note:
Related Files :
Carya illinoinensis
Colletotrichum
Mangifera indica
Persea americana
Prunus dulcis
Prunus persica
Prunus persica nucipersica
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Related Content
More details
DOI :
10.1006/pmpp.1996.0062
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29525
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:47
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Scientific Publication
Cross-infection of subtropical and temperate fruits by Colletotrichum species from various hosts
49
Freeman, S., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Shabi, E., Department of Plant Pathology, ARO, Volcani Center, Bet Dagan 50250, Israel
Cross-infection of subtropical and temperate fruits by Colletotrichum species from various hosts
Forty-two isolates of Colletotrichum gloeosporioides from almond, apple, avocado, mango, pecan, and eight isolates of C. acutatum from apple, peach and pecan were compared by molecular analyses and a pathogenicity assay in order to determine genetic variability and host specificity. Polymerase chain reaction (PCR) amplification of genomic DNA using four different primers and HaeIII digestion patterns of genomic DNA (A + T-rich DNA) grouped the C. acutatum isolates separately from the C. gloeosporioides isolates. Based on arbitrarily primed PCR (ap-PCR), intraspecies similarity among the isolates of C. acutatum and C. gloeosporioides ranged from 78 to 93%, and from 0 to 38%, respectively. Similarity between the isolates of C. acutatum and C. gloeosporioides ranged from 0 to 26.5%. A + T-rich DNA grouped the C. acutatum isolates separately from those of C. gloeosporioides, corresponding to ap-PCR analyses. Artificial inoculations with nine representatives isolates on almond, apple, avocado, mango and nectarine fruit showed a variation in levels of infection. The C. gloeosporioides isolates from almond grew more slowly, causing significantly smaller lesions on all inoculated fruit than the other isolates. The C. acutatum isolates from apple and peach caused similar levels of infection on all fruit, but differed significantly from the C. gloeosporioides isolate from apple. Variation in lesion size was also observed with isolates of C. gloeosporioides from apple, avocado and mango for most fruit inoculations.
Scientific Publication
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