Regular ArticleThe Effect of Tricyclazole and Culture Medium on Production of the Melanin Precursor 1,8-Dihydroxynaphthalene by Sclerotinia sclerotiorum Isolate SS7☆
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Variation in isolates of Sclerotinia sclerotiorum (Lib.) de Bary causing white mold disease in Bangladesh crops
2019, Crop ProtectionCitation Excerpt :Krishnamoorthy et al. (2016) observed the optimum pH to be 4.5 for maximum mycelial growth in PDA medium which supported our results. Variation of melanin formation was observed by many authors (Lazarovits, 2000; Garg et al., 2010), however melanin formation and pathogenesis relationship is not fully understood (Woodward et al., 2008; Tudor et al., 2014; Lujan et al., 2016). In our observations both melanin and non-melanin synthesis isolates developed symptoms on host plant leaves, indicating that our isolates were virulent.
Delineation of Sclerotinia sclerotiorum pathotypes using differential resistance responses on Brassica napus and B. juncea genotypes enables identification of resistance to prevailing pathotypes
2012, Field Crops ResearchCitation Excerpt :Studies on population structure of S. sclerotiorum have demonstrated diversity in relation to a number of characteristics, including those associated with morphological characters and sexual reproduction in populations (Atallah et al., 2004; Carbone and Kohn, 2001; Cubeta et al., 1997; Kohli and Kohn, 1998; Sexton and Howlett, 2004; Sexton et al., 2006). Specific differences in the morphology of S. sclerotiorum isolates have been reported (Li et al., 2003) including isolates that produce tan sclerotia (Garrabrandt et al., 1983) or darkly pigmented hyphae from Australia (Garg et al., 2010a), Canada and the south western region of the United States of America (Lazarovits et al., 2000; Sanogo and Puppala, 2007). However, no relationship was found between pigmentation and virulence in S. sclerotiorum (Garg et al., 2010a).
A Forward Genetic Screen in Sclerotinia sclerotiorum Revealed the Transcriptional Regulation of Its Sclerotial Melanization Pathway
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2019, Canadian Journal of Plant ScienceDissipation kinetics and risk assessments of tricyclazole during Oryza sativa L. growing, processing and storage
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We thank Loretta Ross, Jackie Hill, Henry Bork, and Bob Bressette for valuable technical assistance. NMR and MS measurements were provided by Susan England and Doug Hairsine (Dept. of Chemistry, University of Western Ontario, London, ON). We also thank Drs. M. H. Wheeler and R. D. Stipanovic, USDA-ARS Cotton Pathology Research (College Station, TX), for providing samples of flaviolin, scytalone, 1,3,8-trihydroxynaphthalene, and 1,3,6,8-tetrahydroxynaphthalene.