Biotechnological methods applied to produce Sclerotinia sclerotiorum resistant sunflower
نویسندگان
چکیده
منابع مشابه
Methods of determining the reaction of sunflower genotypes to terminal bud attack by Sclerotinia sclerotiorum ( Lib ) De Bary
as a basis for comparison of the different test methods, since it has been shown that genotype ranking according to reaction to natural attack is stable. Two tests gave results significantly correlated with those of natural attack. A test measuring mycelium extension along the young stem from an explant placed on the terminal bud gave a correlation of r = 0.554 (n = 20). An infection by ascospo...
متن کاملAntagonism of Aspergillus Terreus to Sclerotinia Sclerotiorum
An Aspergillus terreus strain showed in vitro antagonistic activity against the plant pathogen Sclerotinia sclerotiorum (Lib.) de Bary. The interaction between A. terreus and sclerotia revealed that the mycoparasite sporulated abundantly on the sclerotial surface. Cell breakdown due to host cell wall disruption was observed in inner rind cells, by a scanning electron microscopy.
متن کاملChanges in Cell Membrane Permeability in Sunflower Hypocotyls Infected with Sclerotinia sclerotiorum.
Influx and efflux of water and urea and electrolyte leakage are less for sunflower (Helianthus annuus) hypocotyl sections above lesions caused by Sclerotinia sclerotiorum than for those from healthy plants. Urea uptake by sections above lesions is reduced (celery, squash, and tomato) or unchanged (bean) in other hosts after Sclerotinia infection. Efflux of urea from sunflower hypocotyls is biph...
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the response of five inbred sunflower seedling lines, including ac 4122, c, ha 89, ha 410, ha 411, to inoculation with sclerotinia sclerotiorum culture filtrate containing endogenous oxalic acid was compared with the exogenous application of synthetic oxalic acid. the reaction of seedlings was evaluated in terms of dry and fresh plant weights and the total chlorophyll concentration relative to ...
متن کاملAscospore release and survival in Sclerotinia sclerotiorum.
The release and survival of ascospores of a UK Sclerotinia sclerotiorum isolate were studied. Apothecia placed in a spore clock apparatus with different lighting regimes at 15 degrees C released ascospores continuously with an increasing rate for the duration of experiments (72-84 h). Spore release was not confined to light or dark periods in alternating regimes and occurred in continuous dark ...
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ژورنال
عنوان ژورنال: Helia
سال: 2002
ISSN: 1018-1806
DOI: 10.2298/hel0236191s