4 ms·
Spot on. Sometimes switching from agar agar to a different hydrocolloidal grown medium like gellan gum can enable the culture of bacteria that would be otherwis
by tomkinstinch 12y ago
Spot on. Sometimes switching from agar agar to a different hydrocolloidal grown medium like gellan gum can enable the culture of bacteria that would be otherwise difficult to culture. (And in food science, different guns are used for different purposes as well—gellan, agar, xanthan, guar, etc.)
- adrianN 12y agoHere's a publication about that http://jb.asm.org/content/194/16/4151.full http://jb.asm.org/content/194/16/4151.full
- jballanc 12y agoAnd then you have the fun media like Blood Agar (https://en.wikipedia.org/wiki/Agar_plate#Blood_agar https://en.wikipedia.org/wiki/Agar_plate#Blood_agar). But it's not just finding the right media, many microbes are obligate symbionts meaning that we'll never be able to culture them in isolation. I vaguely recall a spc. of Mycoplasma that would only grow in the presence of a peptidoglycan matrix containing E. coli (though it's been a while, so I could be misremembering). For situations like this, having the ability to do raw analysis on environmental DNA is hugely beneficial.