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Characterization of a dicarboximide-fungicide-resistant laboratory isolate of Monilinia laxa
Year:
1982
Source of publication :
Phytoparasitica
Authors :
Katan, Talma
;
.
Shabi, Ezra
;
.
Volume :
10
Co-Authors:

Katan, T.
Shabi, E., Div. of Plant Pathology, ARO, The Volcani Center, Bet Dagan, Israel

Facilitators :
From page:
241
To page:
245
(
Total pages:
5
)
Abstract:
Monilinia laxa, the incitant of blossom blight in stone fruits in Israel, is sensitive to 5μg/ml of the dicarboximide fungicides vinclozolin and iprodione in the growth medium. When a large number of spores, from an isolate never exposed to these fungicides, was seeded on a medium containing 15 μg/ml iprodione, spontaneous resistant mutants appeared at 10-5 frequency. These mutants showed cross resistance to the dicarboximide fungicides vinclozolin, procymidone, l-(3,5-dichloro-phenyl)-3-propen(2)-pyrrolidin-2,5-dion (Co 4462), l-(3,5-dichlorophenyl)-3-methoxymethyl-pyrrolidin-2,5-dion (Co 6054), and to dicloran. Growth rate on fungicide-free medium was similar to that of the parental sensitive strain but sporulation was much reduced. Growth rate on media supplemented with dicarboximide fungicides decreased gradually with increasing fungicide concentrations. The resistance has been stable for more than one year in the absence of fungicides. Artificial inoculation of cherry, apricot and plum fruits previously treated with 500 μg/ml vinclozolin, iprodione, procymidone or Co 6054, with a resistant strain, resulted in brown rot; similar treatments provided full protection of the fruits against the sensitive strain. © 1982 Springer Science + Business Media B.V.
Note:
Related Files :
Blossom blight
Brown rot
Co 6054
dicloran
Iprodione
procymidone
Tolerance
vinclozolin
Show More
Related Content
More details
DOI :
10.1007/BF03023965
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
24602
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:08
Scientific Publication
Characterization of a dicarboximide-fungicide-resistant laboratory isolate of Monilinia laxa
10

Katan, T.
Shabi, E., Div. of Plant Pathology, ARO, The Volcani Center, Bet Dagan, Israel

Characterization of a dicarboximide-fungicide-resistant laboratory isolate of Monilinia laxa
Monilinia laxa, the incitant of blossom blight in stone fruits in Israel, is sensitive to 5μg/ml of the dicarboximide fungicides vinclozolin and iprodione in the growth medium. When a large number of spores, from an isolate never exposed to these fungicides, was seeded on a medium containing 15 μg/ml iprodione, spontaneous resistant mutants appeared at 10-5 frequency. These mutants showed cross resistance to the dicarboximide fungicides vinclozolin, procymidone, l-(3,5-dichloro-phenyl)-3-propen(2)-pyrrolidin-2,5-dion (Co 4462), l-(3,5-dichlorophenyl)-3-methoxymethyl-pyrrolidin-2,5-dion (Co 6054), and to dicloran. Growth rate on fungicide-free medium was similar to that of the parental sensitive strain but sporulation was much reduced. Growth rate on media supplemented with dicarboximide fungicides decreased gradually with increasing fungicide concentrations. The resistance has been stable for more than one year in the absence of fungicides. Artificial inoculation of cherry, apricot and plum fruits previously treated with 500 μg/ml vinclozolin, iprodione, procymidone or Co 6054, with a resistant strain, resulted in brown rot; similar treatments provided full protection of the fruits against the sensitive strain. © 1982 Springer Science + Business Media B.V.
Scientific Publication
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