Results 181 to 190 of about 8,290 (217)
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Inhibition of sclerotium formation of Sclerotium rolfsii by compounds related to phenylthiourea
Transactions of the British Mycological Society, 1984The addition of nonpolar groups to thiourea enhanced the ability of compounds to inhibit growth and sclerotium formation of Sclerotium rolfsii. At comparable concentrations, oxygen analogues (urea derivatives) did not inhibit growth or sclerotium formation.
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Effects of cultivation, conditioning and isolate on sclerotium germination in Sclerotium cepivorum
Plant Pathology, 1992Sclerotium germination in various isolates of S. cepivorum was studied following different cultivation and conditioning treatments. A simple and rapid laboratory test was developed to trigger sclerotial germination under unsterile conditions. In most isolates, sclerotia produced under sterile
H. D. BRIX, V. ZINKERNAGEL
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Non-nutritional factors influencing sclerotium formation in some Sclerotinia and Sclerotium species
Transactions of the British Mycological Society, 1973Sclerotium formation in Sclerotium delphinii, S. rolfsii and Sclerotinia sclerotiorum is influenced both by light intensity and the duration of the light treatment. Removal of matured sclerotia from colonies results in the production of a further crop of sclerotia. In S.
Janet Trevethick, R.C. Cooke
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Sclerotium rot of sugarbeets in India
Mycopathologia et Mycologia Applicata, 1971Sclerotium rot of sugar beets incited byP. rolfsii is described for the first time from India. The disease has been found widely prevalent around Pantnagar. Observations on the susceptibility of crops grown in the affected areas and the relative susceptibility of different sugarbeets varieties are presented.
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The regulation of sclerotium initiation in Sclerotium rolfsii by glucose and cyclic AMP
Canadian Journal of Microbiology, 1983Sclerotium rolfsii, grown in a shaken submerged culture, developed a potential for the formation of sclerotia. This potential was inhibited by the presence of glucose in the culture medium. The cultures were capable of producing sclerotia, after transfer to stationary incubation, when glucose was exhausted and the biomass reached its maximal level ...
Y. Hadar, M. Pines, I. Chet, Y. Henis
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Transactions of the British Mycological Society, 1977
Sterile medium staled by the growth of Sclerotinia sclerotiorum (Lib.) de Bary and Sclerotium rolfsii Sacc. enhanced sclerotium production when applied to test colonies, the active components being acidic and heat stable. In S. sclerotiorum, sclerotium production appeared to be associated with secretion of organic acids, and two unidentified acids with
F.M. Humpherson-Jones, R.C. Cooke
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Sterile medium staled by the growth of Sclerotinia sclerotiorum (Lib.) de Bary and Sclerotium rolfsii Sacc. enhanced sclerotium production when applied to test colonies, the active components being acidic and heat stable. In S. sclerotiorum, sclerotium production appeared to be associated with secretion of organic acids, and two unidentified acids with
F.M. Humpherson-Jones, R.C. Cooke
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The respiration of sclerotia of Sclerotium rolfsii
Mycopathologia et Mycologia Applicata, 1967The respiration of sclerotia ofS. rolfsii was investigated using the Warburg constant-volume respirometer to measure oxygen uptake. The effects of age of sclerotia, pH, and temperature were studied. Sclerotia produced on prune agar were ideal for respirometric studies, being uniformly round and of approximately equal size.
Martha D. Bard, Charles L. Fergus
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Large sclerotia of Sclerotium cepivorum
Transactions of the British Mycological Society, 1988Sclerotia of Sclerotium cepivorum much larger than typical infective sclerotia were common on naturally infected onions at Pukekohe, New Zealand, during one season but were rare in the next. They could not be recovered from soil one year after their most common occurrence. Similar large sclerotia were formed in culture on autoclaved wheat grains.
D. Backhouse, A. Stewart
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Canadian Journal of Microbiology, 1975
Sclerotium formation in Sclerotium rolfsii was completely inhibited by 2-mercaptoethanol at a concentration of 2–4 mM without any adverse effect on mycelial growth. Concentrations lower than 2 mM had no effect on mycelial growth and sclerotium formation, whereas both were inhibited at concentrations higher than 4 mM.
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Sclerotium formation in Sclerotium rolfsii was completely inhibited by 2-mercaptoethanol at a concentration of 2–4 mM without any adverse effect on mycelial growth. Concentrations lower than 2 mM had no effect on mycelial growth and sclerotium formation, whereas both were inhibited at concentrations higher than 4 mM.
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