I'm working with Gram+ bacteria. I tried Qiagen RNA protect but didn't work well and the price is simply outrageous. Any alternatives? Cold ethanol-acetone worked well though.
What about Ambion's RNAlater? It worked well for E. coli and it could probably work on gram positive bacteria as well. I personally prefer Ambion products when I'm dealing with RNA.
I didn't try Ambion's product, but I guess it has to be similar to Qiagen's? Simple assumption. It's just that Gram+ bacteria are way harder to deal with then E. coli for instance. However, I do agree with you for the quality of Ambion products.