_Dionaea_ is the most commonly CP grown in vitro. It has been
succesfully grown for many years. There may just be a problem with your
sterilation technique. Do you start from tissue or from seeds? I've
never successfully sterilized the tissue without massive die-off. But
the seeds go quite well. I've never seen any documentation about
symbiotic, or non-symbiotic for that matter, relationships between CP
and microflora (fungii included). Do CP have mycrorrhizal fungii
symbiosis as other plants do? Sounds like a thesis topic.
JMS