Mauricette Michel

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An undescribed fungus of the genus Microsphaeropsis, isolated from the Mediterranean sponge Aplysina aerophoba, produces two new betaenone derivatives (1, 2) and three new 1,3,6, 8-tetrahydroxyanthraquinone congeners (5-7). The structures of the compounds were established on the basis of NMR spectroscopic and mass spectrometric data and by CD spectroscopy.(More)
Hordeum bulbosum L. is a source of disease resistance genes that would be worthwhile transferring to barley (H. vulgare L.). To achieve this objective, selfed seed from a tetraploid H. vulgare x H. bulbosum hybrid was irradiated. Subsequently, a powdery mildew-resistant selection of barley phenotype (81882/83) was identified among field-grown progeny. Using(More)
Two new 5,8'-coupled naphthylisoquinoline alkaloids, ancistroealaines A (1) and B (2), eleutherolic acid (3), and two naphthoic acids, ancistronaphthoic acid A (4) and B (5), have been isolated from Ancistrocladus ealaensis. Their structures were determined by spectroscopic, chemical, and chiroptical methods. Ancistroealaine A (1) exhibited activity against(More)
Idiotypy shares with allotypy the characteristic that antigenic specificities proper to it in one category of proteins, as one given class of immunoglobulins, are not carried by the protein molecules of this category in all the individuals of the same animal species. But, in contrast to allotypy which has been observed in several other kinds of proteins(More)
Idiotypy shares with allotypy the characteristic that antigenic specificities proper to it in one category of proteins, as one given class of immunoglobulins, are not carried by the protein molecules of this category in all the individuals of the same animal species. But, in contrast to allotypy which has been observed in several other kinds of proteins(More)
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