The changes in the contents of free and bound gibberellin-like activity (GA) of Tulipa gesneriana L. cv. Ralph during development under 2 temperature conditions were studied. The results show that the content of free GA of bulbs grown at 18 degrees increased by 67% over the initial level during development. The bound GA showed a slight initial increase and was followed by a rapid decrease. In c...

Megnet, Roland (Institut für Allgemeine Mikrobiologie der Universität, Bern, Switzerland). Effect of 2-deoxyglucose on Schizosaccharomyces pombe. J. Bacteriol. 90:1032-1035. 1965.-Cultivation of Schizosaccaromyces pombe in a medium containing 2-deoxyglucose (100 mug/ml) results in the death of the cells after an initial period of apparently normal growth. At higher deoxyglucose concentration (4...

CAMERON , C. M . & E NGELBRECHT, M A RIA, M . Mechanism of immun ity to C ory nebacterium pseudotuberculosis (Buchanan, 1911) in mice using inactivated vaccine. Onderstep oorl ]. vet. R es. 38 (2), 7382 (1971). Mice can be passively protected against infection w ith C ory nebacterium p seudotubermlosis w ith hyperimmune rabbit serum prepared against whole bacterial cells. T he mechanism of immu...

Insects have been used as an exemplary model in studying longevity, from extrinsic mortality pressures to intrinsic senescence. In the highly eusocial insects, great degrees of variation in lifespan exist between morphological castes in relation to extreme divisions of labour, but of particular interest are the primitively eusocial insects. These species represent the ancestral beginnings of eu...

Dihydrochalcones and 5-deoxyflavones are types of compounds possessing various biologically interesting properties. Herein, we report the concise and divergent total syntheses of several naturally occurring dihydrochalcones and 5-deoxyflavones from readily available starting materials. The divergent strategy is based around manipulation of a common chalcone scaffold and features application of ...

One hundred and thirty four Little Penguin (Eudyptula minor) carcases found since 2004 in south west Australia were necropsied. The livers and spleens from ten of the penguins exhibited varying degrees of multifocal, randomly scattered areas of necrosis and varying numbers of parasites were associated with these areas. Hepatomegaly and splenomegaly were noted in many of these ten cases. Necrosi...

Rhizopus oryzae is reported for the first time on Cucumis melo L. var. makuwa Makino. A detailed description of this Korean specimen is given, along with its rDNA internal transcribed spacer sequence. On the basis of mycological characteristics and molecular data, the fungus was identified as R. oryzae Went & Prinsen Geerligs.

Corynebacterium pseudotuberculosis, a Gram-positive intracellular pathogen, is the etiological agent of caseous lymphadenitis or CLA. This bacterium infects goats and sheep and causes great economic losses worldwide annually, mainly for goat producers. Despite its importance, CLA is still poorly characterized. However, with advances in the genomic field, many C. pseudotuberculosis genes have al...

OBJECTIVE We undertook a microbiological study of purulent specimens from women with symptomatic breast abscesses. METHODS Fifty-one purulent samples were collected in 2 periods (December 1991-April 1992 and January 1994-June 1994) from nonpuerperal breast abscesses in 44 patients attending our hospital. RESULTS One of the most frequently isolated microorganisms was Proteus mirabilis (9 pat...

Recent theory suggests that much of the wide variation in individual behavior that exists within cooperative animal societies can be explained by variation in the future direct component of fitness, or the probability of inheritance. Here we develop two models to explore the effect of variation in future fitness on social aggression. The models predict that rates of aggression will be highest t...