Cross-species GacA-controlled induction of antibiosis in pseudomonads

Article Abstract:

The signal extracts prepared from culture supernatants of Pseudomonas fluorescens CHA0 and Pseudomonas aeruginosa PAO have stimulated GacA-dependent expression of small RNAs and also of antibiotic compounds in both hosts. Pseudomonas corrugata LMG2172 and Pseudomonas fluorescens SBW25 have produced signal molecules stimulating GacA-controlled antibiotic synthesis in strain CHA0, thus presenting a novel, N-acyl-homoserine lactone-independent type of interspecies communication.

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Phylogeography of sulfate-reducing bacteria among disturbed sediments, disclosed by analysis of the dissimilatory sulfite reductase genes (dsrAB)

Article Abstract:

A study was conducted to elucidate how sulfidogenic communities are composed worldwide, to explore the hydrocarbon biodegradation potential globally, and to determine whether biogeographic patterns are apparent in sulfate-reducing bacteria (SRB) communities. It is concluded that while disclosing the structure of sulfidogenic communities among disturbed sites, provide insights about the diversity, uncharacterized extent, and biogeography of SRB.

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Low temperature isolation of disease-suppressive bacteria and characterization of a distinctive group of pseudomonads

Article Abstract:

The impact of individual isolation factors on the disease-suppressive index (DSI) of almost 600 isolates was analyzed. Some isolation factors that are important for obtaining disease-suppressive bacteria in the system are described along with a novel group of biocontrol pseudomonads.

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