Differential production of sclerotia by isolates ofSclerotinia sclerotiorumfrom Alaska

Autor:	R. H. Leiner, Loretta M. Winton
Rok vydání:	2006
Předmět:	biology Inoculation Sclerotinia sclerotiorum food and beverages Apium graveolens Lactuca Plant Science biology.organism_classification Capitata Botany Brassica oleracea Cultivar Agronomy and Crop Science Daucus carota
Zdroj:	Canadian Journal of Plant Pathology. 28:435-440
ISSN:	1715-2992 0706-0661
DOI:	10.1080/07060660609507317
Popis:	Sclerotinia sclerotiorum was isolated from lettuce (Lactuca sativa) grown in Alaska. Sections of cabbage (Brassica oleracea var. capitata) and lettuce were inoculated with isolates A and B. Sclerotia of S. sclerotiorum were counted and weighed after the host tissue decomposed. Isolate A produced a mean of 42 sclerotia weighing 1.9 g on 100 g of cabbage 'Balbro', which was twice the number of sclerotia and triple the biomass produced by isolate B. On three cultivars of lettuce, isolate A had a greater mass and a similar number of sclerotia compared with isolate B. Carrot (Daucus carota subsp. sativus) and celery (Apium graveolens) were also inoculated to measure production of sclerotia. Differences between isolates of S. sclerotiorum were less pronounced on carrot and celery, but the difference between hosts was significant. The mean mass of sclerotia for isolate A was 73 mg on carrot and 18 mg on celery. Isolates A and B were distinct in the rDNA intergenic spacer sequences. Isolate A had identical sequen...
Databáze:	OpenAIRE
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