Pathogen species

Superinfection with a new (resistant) pathogenic species during therapy... 

The selection of the species used in a primary screening programme will depend upon the facilities available to the organisation, the local or regional restrictions on the cultivation or breeding of pathogenic species... 

Almost all studies on induced indirect defenses have looked at the effects of an attack by a single herbivore or pathogen species. In a natural situation, however, plants often suffer from simultaneous attacks by multiple adversaries. Many plants carry several herbivores and they can be infested by pathogens at the same time that they are eaten by herbivores. This should again contribute to the variability of reactions that plants exhibit. Plant infestations by multiple species and their crosseffects have been studied for direct defenses (Hatcher, 1995 Agrawal et al, 1999 Rostas et al., 2003), but not yet in the context of indirect defenses. 

Anaerobic resistance was developed in both pathogenic species by prolonged cultivation of drug-susceptible strains or clones under increasing pressure of... 

The sensibility conferred by the m-GEC electrode in connection with the use of magnetic beads and enzymatic labelling results in a rapid, cheap, robust and environmental-friendly device which allows the detection of pathogenic species on food, environmental and clinical samples. 

In order to provide access here to information about other microbial polysaccharides, there follows a short review of reviews. The Chemical Nature of Bacterial Antigens is a source of information on the earlier work, and this was followed by two reviews - in the present Series in one of these, the bacterial homopolysaccharides were discussed and some of the more complex products were mentioned. A wide review of mucopolysaccharides and mucoproteins included references to many bacterial polysaccharides, and, subsequently, an account of the specific polysaccharides of the Gram-positive Pneumococcus, and of dextrans, levans, and products of Gram-negative forms appeared. There followed a comprehensive review of pneumococcal polysaccharides, and an account restricted to products of Mycobacterium tuberculosis appeared in 1948. A broad coverage was provided in 1950, in this case the products of pathogenic species being dealt with more particularly this work encompassed the basis of the more... 

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