Fungi occurring on waterhyacinth (Eichhornia crassipes (Martius) Solms-Laubach) in Niger River in Mali and their evaluation as mycoherbicides. | Prospection des champignons vivants sur la jacinthe d'eau au Mali et leur évaluation en tant que mycoherbicides
2012
Dagno, Karim | Lahlali, Rachid | Diourté, Mamourou | Jijakli, Haissam
Английский. peer reviewed
Показать больше [+] Меньше [-]Английский. We recovered 116 fungal isolates in 7 genera from waterhyacinth plants having pronounced blight symptoms collected in Mali. Isolation frequency of the genera was Curvularia (60.32%), Fusarium (42.92%), Alternaria (11.6%), Coniothyrium (11.6%), Phoma (3.48%), Stemphylium (3.48%), and Cadophora (1.16%). On the basis of in vivo pathogenicity tests in which the diseased leaf area percentage and disease severity were visually estimated using a disease severity index, three isolates, Fusarium sp. Mln799, Cadophora sp. Mln715, and Alternaria sp. Mlb684 caused severe disease. These were later identified as Gibberella sacchari Summerell & J.F. Leslie, Cadophora malorum (Kidd & Beaumont) W. Grams, and Alternaria sp. respectively. This is the first report to highlight C. malorum as a candidate biocontrol agent against waterhyacinth. Neither C. malorum Mln715 nor Alternaria sp. Mlb684 in host specificity tests showed any pathogenicity toward 17 crop plants of economic importance in Mali.
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