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Plant Preservative Mixture (PPM)

Plant Preservative Mixture (PPM), is a broad-spectrum biocide/fungicide for plant tissue culture. PPM™ is the ultimate solution to the never-ending struggle against microbial airborne, waterborne and endogenous contamination.

 

The use of PPM in the above instances has proven very successful in controlling the microbial contamination levels in our tissue culture programme. Furthermore, with the development of new techniques and protocols, it is reasonable to assume that additional problems with contamination are likely to be encountered. PPM will therefore continue to be stocked as a standard consumable item in our laboratory." -- SASRI Tissue Culture Laboratory
"Contamination is frequently the greatest concern for many labs in the State of Hawaii….I decided to try [Plant Preservative Mixture] as a medium-incorporated biocide… Absolutely no growth of microbes was evident after the cultures were incubated at 29° C for 4 days. No obvious phytotoxic effects such as chlorosis or necrosis were observed. Additionally, contamination from airborne contaminants in the culture storage room was significantly reduced." -- Professor of Plant Science, U. of Hawaii at Hilo, College of Agriculture, Forestry and Natural Resource Management
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