ABSTRACT The monophyletic origin of host-specific taxa in the plant-pathogenic Fusarium oxysporum complex was tested by constructing nuclear and mitochondrial gene genealogies and amplified fragment length polymorphism (AFLP)-based phylogenies for 89 strains representing the known genetic and pathogenic diversity in 8 formae speciales associated with wilt diseases and root and bulb rot. We incl...

*To whom correspondence should be addressed: Julian Z. Xue McGill University, Department of Biology, Montreal, Canada, H3A 1B1 Email: [email protected] This is progress in all senses: they managed to reduce an immense cognitive dissonance within our society, a dissonance that leads laypeople to scratch their heads and ask: “...and what were they doing before that?” Since then, EBM has...

Expression of the PSR132 protein from Dianthus caryophyllus (carnation, clover pink) is induced in response to ethylene production associated with petal senescence, and thus the protein is named petal death protein (PDP). Recent work has established that despite the annotation of PDP in sequence databases as carboxyphosphoenolpyruvate mutase, the enzyme is actually a C-C bond cleaving lyase exh...

We have been interested in the structure of the X chromosome of the stock known as scute-8 apricot, found by SIDOROV (1931). This stock has been used extensively in our laboratory, and it early became a matter of importance to have exact information on the nature of this chromosome, It was of course known that it contained a long inversion, but its exact limits had not been fully worked out. Th...

Superoxide dismutases (SODs) and superoxide radicals in peroxisomes Peroxisomes are subcellular respiratory organelles that contain catalase and H202-producing flavin oxidases as basic enzymatic constituents [1,2]. In recent years, it has become increasingly clear that peroxisomes carry out essential functions in almost all eukaryotic cells [3-51, and an important characteristic of peroxisomes ...

BACKGROUND Names used in ingredient lists of food products are trivial and in their nature rarely precise. The most recent scientific interpretation of the term bamboo (Bambusoideae, Poaceae) comprises over 1,600 distinct species. In the European Union only few of these exotic species are well known sources for food ingredients (i.e., bamboo sprouts) and are thus not considered novel foods, whi...

PIXE (Proton Induced X-ray Emission) is a well-known method for elemental analyses of specimens in applied studies. In this paper, we report results of an application of PIXE in trace-element analysis of normal and vitrified carnations in vitro culture. Experiments were performed to study the vitrification in connection with the trace elements in carnation tissues. About two hundred PIXE spectr...