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We used callus of Populus euphratica Olive to isolate protoplasts, and H+ fluxes across plasma membrane were investigated. The concentration of enzymes for protoplast isolation, e.g. cellulase, pectolyase, macerozyme, hemicellulase, and sorbitol content, incubation time were systemically studied. High yield and viability of protoplast was achieved after 6–8 hours incubation of P. euphratica callus...
Antifreeze proteins (AFPs) enable organisms to survive under cold conditions, and have great potential in improving cold tolerance of cold-sensitive plants. In order to determine whether expression of the carrot 36 kD antifreeze protein gene confers improved cold-resistant properties to plant tissues, we tried to obtain transgenic tobacco plants which expressed the antifreeze protein. Cold, salt,...
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