Article (Scientific journals)
Biological Control of Crown Rot of Bananas With Pichia Anomala Strain K And Candida Oleophila Strain O
Lassois, Ludivine; De lapeyre de Bellaire, Luc; Jijakli, Haissam
2008In Biological Control, 45 (3), p. 410-418
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Keywords :
Banana; Biological control; Candida Oleophila; Pichia anomala; crown rot; post-harvest; Colletotrichum musae; Cephalosporium; Fusarium moniliforme; Musa
Abstract :
[en] The antagonistic activity of two yeast strains (Pichia anomala (E.C. Hansen) Kurtzman, strain K and Candida oleophila Montrocher, strain O) against the parasitic complex responsible for banana crown rot was evaluated. The strains were applied at three different concentrations (106, 107 , 108 cfu/ml) and their efficacy tested in vivo on three separate fungi (Colletotrichum musae (Berk. & Curt.) Arx, Fusarium moniliforme Sheldon, and Cephalosporium sp.) and on a parasitic complex formed by association of these three fungi. At the concentrations used C. musae appeared to be the most pathogenic. The complex showed intermediate aggressiveness between C. musae and both other fungi. Statistically significant antagonistic effects were observed on C. musae, F. moniliforme, and the fungal complex. The highest protection level (54.4%) was observed with strain O added at 108 cfu/ml on crowns previously inoculated with the fungal complex. The level was lower when the fungi were inoculated separately. Furthermore, the antagonistic effect was strongly reinforced when strain O at 108 cfu/ml was applied 24 h before fungal complex inoculation (59.9%), as compared to its application 15 min (24.3%) or 3 h (27.3%) after fungal complex inoculation. Bananas showed increased susceptibility to the fungal complex from March to June, and this influenced the level of protection by yeast, which decreased over the same period. A strict negative correlation (R2 = 0.83) was highlighted between susceptibility of banana to crown rot and protection provided by yeast.
Disciplines :
Agriculture & agronomy
Author, co-author :
Lassois, Ludivine  ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech
De lapeyre de Bellaire, Luc
Jijakli, Haissam  ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Language :
English
Title :
Biological Control of Crown Rot of Bananas With Pichia Anomala Strain K And Candida Oleophila Strain O
Publication date :
2008
Journal title :
Biological Control
ISSN :
1049-9644
eISSN :
1090-2112
Publisher :
Elsevier, Atlanta, Georgia
Volume :
45
Issue :
3
Pages :
410-418
410-418
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 December 2009

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