'pathogenic bacterium' is a perfectly correct and usable phrase in written English.
You can use this phrase to refer to any type of bacteria that causes disease. For example, "The pathogenic bacterium Salmonella can cause severe food poisoning."
Plant genetic engineering is routinely performed with the pathogenic bacterium Agrobacterium tumefaciens and similar pathogens (e.g. Bartonella henselae) may also be able to transform human cells.
Every pathogenic bacterium seems to have a killing formula: "heat to x°C and hold at that temperature for y minutes".
Escherichia coli bacterium was used as a model of a common pathogenic bacterium found in a foodstuff.
Anticommunists usually thought communism as a pathogenic bacterium that should be exterminated.
Staphylococcus aureus is a facultative anaerobic Gram-positive coccal pathogenic bacterium belonging to Staphylococcaceae family.
Acinetobacter baumannii is a pathogenic bacterium responsible for a wide range of infections in immunocompromised patients.
Mycoplasma genitalium is a sexually transmissible, pathogenic bacterium and a significant cause of nongonococcal urethritis in both men and women.
Listeria monocytogenes is a pathogenic bacterium capable of causing severe disease leading to high hospitalization and case fatality rates.
Mycobacterium vaccae, a non-pathogenic bacterium, first isolated from cow dung possesses antidepressant properties.
S. enterica 43C, a non-pathogenic bacterium having strong cytoplasmic redox balance system to overcome metal induced cytotoxicity.
The Ax21 protein family consists of proteins related to Ax21, which was originally identified in the rice-pathogenic bacterium, Xanthomonas oryzae pv.
