Shift in Sensitivity of Alternaria solani in Response to QoI Fungicides
نویسندگان
چکیده
منابع مشابه
Effect of the F129L Mutation in Alternaria solani on Fungicides Affecting Mitochondrial Respiration
Alternaria solani Sorauer (Ellis), a foliar pathogen of potato (Solanum tuberosum L.), was considered to be difficult to control, responsible for yield losses of up to 30% (24), until the registration of the first strobilurin fungicide, azoxystrobin (Quadris; Syngenta Crop Protection, Greensboro, NC), in 1999. Strobilurins belong to the group of chemicals classified as Quinone outside inhibitor...
متن کاملMechanisms of resistance to QoI fungicides in phytopathogenic fungi.
The major threat to crops posed by fungal diseases results in the use by growers of enormous amounts of chemicals. Of these, quinol oxydation inhibitors (QoIs) are probably the most successful class of agricultural fungicides. QoIs inhibit mitochondrial respiration in fungi by binding to the Qo site of the cytochrome bc1 complex, blocking electron transfer and halting ATP synthesis. Unfortunate...
متن کاملPrevalence, competitive fitness and impact of the F129L mutation in Alternaria solani from the United States
Reduced sensitivity to quinone outside inhibitor (QoI) fungicides conferred by the presence of the F129L mutation was identified in Alternaria solani isolates collected in Nebraska in 2000 and in isolates collected from the Midwestern states of Minnesota and North Dakota in 2001. Over 4200 isolates of A. solani collected over a 5-year period from 2002 to 2006 from 11 potato-producing states wer...
متن کاملAbscisic acid enhances resistance to Alternaria solani in tomato seedlings.
The plant hormone abscisic acid (ABA) is an important regulator in many aspects of plant growth and development, as well as stress resistance. Here, we investigated the effects of exogenous ABA application on the interaction between tomato (Solanum lycopersicon L.) and Alternaria solani (early blight). Foliar spraying of 7.58 μM ABA was effective in reducing disease severity in tomato plants. P...
متن کاملDimers of Altersolanol A from Alternaria solani
George Lazarovits, R. William Steele, and Albert Stoessl Agriculture Canada, London Research Centre, 1400 Western Road, London, Ontario, Canada, N 6 G 2 V 4 Z. Naturforsch. 43c, 813-817 (1988); received May 3, 1988 Altersolanol A Dimers, Fungal Metabolites, Potato Pathogen, Phytotoxins Weakly phytotoxic, water-soluble pigments from culture filtrates of the potato early blight organism Alternari...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2004
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis.2004.88.2.181