Genus: Methylobacterium

What are methylotrophs?

Microorganisms that can utilize organic single-carbon (Ca) compounds as their sole source of carbon and energy.

True or false: methylobacterium are methylotrophic bacteria

True

What are the gram the results and morphology of Methylobacterium?

Gram postive to variable pleiomorphic rods

Methylobacterium are facultative for what and cannot grow on what?

They are facultative for C1 utilization and no strains are capable of growth on methane

Methylobacterium commonly colonize plant leaves and root in which they utilize what as a normal by product of the plant's metabolism?

They utilize the methanol produced

Methylobacterium colonies are bright pink due to what?

carotenoid pigments

Why did we use minamal methonal agar to enrich Methylobacterium?

It will be used as a sole carbon and energy source

How will we distinguish Methylobacterium colonies?

They will appear bright pink and sometimes have large ireregularly shaped clear zones within the cytoplasm (PHB) inclusion bodies which store carbon and energy

After staining Methylobacterium with sudan black, ethanol, and safranin for PHB inclusion bodies what will PHB granules look like?

Large, irregularly shapes, blue-gray to black globular bodies within the red or pink cell