I have a Cattleya maxima that I had to cut pieces off and the base and rhizome were discarded due to black rot. The tops are fully green with no signs of infection. Can I tissue culture these parts pseudobulbs and leaves to get a new plant even if it is not meristemming?
You need to have the meristem tissue. If you only have the leave portion then you won't be able to tissue culture. I am not sure if there is sufficient Meristem tissue in a pseudobulb or not. I believe you would need the rhizome.
Sorry !