Oomycete phytopathogens

BIOACTIVE SECONDARY METABOLITES RELATED TO LIFE-CYCLE DEVELOPMENT OF OOMYCETE PHYTOPATHOGENS... 

Host-specific plant signal triggering life-cycle development of Oomycete Phytopathogens... 

The remaining three chapters cover an assortment of topics, from studies of plants used in Bantu medical and magic practices to metabolites from oomycete phytopathogens to isoflavones as functional food components. 

Unlike fungal saponinases, little is known about hydrolytic enzymes secreted by phytopathogenic oomycetes or their role in pathogenicity [75, 76]. Although innate resistance is believed to be the main mechanism by which oomycetes avoid the toxicity of saponins (see above), some oomycetes have been found to produce saponin hydrolases [77], as well as other glycosyl hydrolases [76]. 

Brunner F et al (2002) A 6-glucosidase/xylosidase from the phytopathogenic oomycete,... 

Brunner, F., Wirtz, W., Rose, J.K.C., Darvill, A.G, Covers, F., Scheel, D., Nuemberger, T. Abeta-glucosidase/ xylosidase from the phytopathogenic oomycete, Phytophthora infestans. Phytochemistry 2002 59 689-696. 

Zoospores of the phytopathogenic oomycetes accumulate at the potential infection sites of host roots by chemotaxis [11,15-17]. Root released electrical currents (electrotaxis) are also found to participate with... 

COGEME http //cogeme.ex.ac.uk Phytopathogenic fungi and oomycete EST... 

The extremely broad activity spectrum of strobilurins, with potential to control all four major classes of phytopathogenic fungi (Ascomycetes, Basidiomycetes, Deuteromycetes and Oomycetes), is unique among commercial fungicides. 

An antibiotic with a very narrow spectrum of activity, ratjadone (93), has been isolated from the culture broth of a myxobacterium Sorangium cellulosum. The growth of some important phytopathogenic fungi, especially species of Oomycetes, was inhibited at very low concentrations of (93) (101). The structure of (93) was determined by spectroscopic methods (102). 

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